Industrialization brings factory-style processes into the construction sector, enhancing productivity and introducing a high degree of automation. It encompasses research and innovation in mechanizing and assembling components in a factory setting, applying these techniques to prefabricate various elements like bathrooms, facades, and technical partitions.

This approach is faster and more sustainable, minimizing waste and requiring fewer energy resources, while also simplifying maintenance.

Bathrooms and facades are among the first elements to undergo this industrialization, according to Mónica Silva Laiz, Head of Building at Sacyr Engineering and Infrastructure Engineering department in Spain.

"Industrialised construction is here to stay, and we are today one of the pioneering companies in carrying out this transformation. It is a new way of conceiving construction," explains Mónica Silva.

Sacyr is implementing industrialization as a key component in projects across Chile, the United Kingdom, Spain, and Italy.

In Chile, we operate a factory assembling prefabricated bathrooms for three hospitals: Sótero del Río, Cordillera, and Buine Paine.

The construction of the Milan Hospital in Italy also incorporates industrialized bathrooms and facade sections.

In Spain, we've employed these factory processes at the 12 de Octubre Hospital, installing prefabricated GRC (glass fiber reinforced concrete on a metal frame) facades, among other elements. These methods are also being implemented in residential developments across several Spanish regions.

At the New Velindre Cancer Center in Cardiff (Wales, UK), we're constructing prefabricated facades using light steel frames with external finishes in wood and copper sheets, incorporating windows and glazing. The facade modules are manufactured in Spain and shipped to the UK for on-site assembly.

Furthermore, through the Valdesc project, we're exploring a novel industrialized construction system for facade envelopes using recycled materials, ensuring high rates of circularity and decarbonization. This system will enhance thermal efficiency and simplify component dismantling, combining efficiency, productivity, and safety. 
 

At Sacyr Agua, we’re pushing the boundaries of sustainability and innovation by detecting and removing microplastics in our wastewater treatment plants (WWTP). By joining forces with Captoplastic, we are working together to make this possible.  

Although microplastic pollution (plastic particles smaller than 5 mm) occurs throughout the whole water cycle, reducing them in the treated water leaving our WWTP is a significant step in protecting the environment.

These plants are designed to remove organic matter and conventional pollutants from wastewater, but they do not normally include specific processes to deal with the wide variety of microplastics that reach them. 

“As well as becoming their preferred partner for projects in Spain, this partnership also allows us to use Captoplastic’s technology and references exclusively in markets such as Australia, Peru and Colombia,” says Eduardo Campos, Managing Director of Sacyr Agua.

An agreement built on innovation

The collaboration with Captoplastic began following a successful pilot project at the Yecla WWTP (Murcia), managed by Sacyr Agua, as part of our open innovation programme, Sacyr iChallenges. 

It was there that we discovered Captoplastic’s pioneering solution, which continuously detects and removes microplastics. This fits perfectly with our commitment to sustainability and our drive to bring advanced technologies into our business.

Pilot project success

To test and validate the technology, Captoplastic moved a demonstration pilot plant from the Cantoblanco campus of the Autonomous University of Madrid to the Yecla WWTP, where the trials were carried out.

Beforehand, a detailed study of the microplastics present in the different stages of the plant was completed, both in the water line and the sludge line. Several types of microplastics were identified, including polypropylene (PP), polyethylene (PE), polycaprolactone (PCL), poly(ethyl acrylate) (PEA), acrylic, polytetrafluoroethylene (PTFE) and polyurethane (PU). 

These microplastics were found in different forms, such as pellets, fibres and fragments, with the highest concentration in the sludge line.

The results of this first pilot trial were very positive, showing a 76% reduction in the initial concentration of microplastics. This proves the effectiveness of the solution and its potential to be scaled up.

Captoplastic Technology

Captoplastic is a Madrid-based small business dedicated to developing innovative solutions for detecting and removing microplastics. Established in 2020, the company has been recognised as a Knowledge-Based Company and works with strategic partners such as the Universidad Autónoma de Madrid and the BeAble Innvierte Kets Fund.

Its technology uses an agglomeration technique, adding an inorganic agent to the water stream so that it binds with microplastics and forms larger aggregates that can then be removed. 

Thanks to the magnetic properties of the agent, the aggregates can be easily separated and removed from the water stream. The process can handle large volumes of water efficiently. The captured microplastics can be recycled, making this a zero-waste technology that is environmentally friendly throughout its entire cycle.

Patricia Muñoz Pequeño
Sustainability Manager
Strategy, Innovation and Sustainability Division

In hindsight, sustainability reporting has undergone significant changes in recent years. Gone are the days when companies like Sacyr, with unwavering commitment and sensitivity to these issues, voluntarily provide information relevant to their ESG strategies and performance using internationally recognised frameworks, with GRI at the forefront.

With the adoption of the Non-Financial Reporting Directive (NRFD) in 2014, and its Spanish transposition in Law 11/2018, sustainability reporting became a legal obligation and, since that time, the importance of these reports has only grown.  

In 2023, with the goal of defining a clear framework for sustainability reporting that would ensure the quality of the information published, data comparability, and the consistency of the information shared by companies, the European Union approved a new Corporate Sustainability Reporting Directive (CSRD) with common reporting standards known as the European Sustainability Reporting Standards (ESRS).

But misgivings and opposition to this new regulation soon arose from the private sector; first, due to the technical complexity and breadth of its requirements and the difficulty of implementing them, highlighting the need for further clarification in certain areas, as well as greater flexibility in their application. 

Secondly, the smaller companies affected expressed doubts about their capacity to comply with this new regulation using their own resources and the potential damage that would be caused by the additional costs required for this purpose. 

The foregoing is paired with a deeper reflection on the part of the European Union; in a complex international environment facing major global changes, ensuring the autonomy, competitiveness, and resilience of the European economy without abandoning the sustainability commitments it has made, has become more crucial than ever.  

This has prompted the EU to redefine its roadmap, while keeping its ambition intact, as demonstrated by i) the strategy of the Green Industrial Deal, designed to strengthen the competitiveness of European industry while accelerating decarbonisation, and ii) the Omnibus Package, the main objective of which is to reduce the administrative burden on companies when reviewing various sustainability regulations, without renouncing the principles of the European Green Deal. 

From a reporting perspective, the Omnibus Package affects CSRD requirements as follows: 

-    Simplification of standards, reducing the number of requirements and providing greater technical clarity in their application. These texts are expected to be available in Q4 of 2025. 
-    Two-year postponement of entry into force for companies, allowing more time to adapt. 
-    Redefinition of application thresholds, excluding listed SMEs and modifying the ranges for the rest. 
-    Maintenance of limited assurance, eliminating the possibility of reasonable assurance in the future.  

In short, 2025 marks a turning point in this area, reflecting the European Union’s commitment to moving toward a more sustainable economy without jeopardising business competitiveness.  

ISABEL RUBIO ARROYO | Tungsteno

The lost city of Atlantis has captured the collective imagination for centuries. According to ancient myths and tales, this enigmatic land vanished mysteriously beneath the waves. Despite the fascination it generates and the countless theories and searches for its supposed underwater ruins, science has found no conclusive evidence of its actual existence. However, history does offer us real examples of cities that have truly been claimed by the sea.

A window into the Bronze Age under the sea

In 1967, British oceanographer Nicholas C. Flemming discovered the remains of an ancient city under the sea, near the island of Elafonisos in southern Greece. The site was identified as Pavlopetri, a settlement that is thought to date back to the Bronze Age. The following year, a team from the University of Cambridge organised an expedition to study the site. Around 5,000 years old, Pavlopetri is one of the oldest known submerged cities, with streets, buildings and tombs still preserved beneath the sea.

The prehistoric city covered 90,000 square metres and featured a complex water management system—with canals and drains, as well as a cemetery. “This neglected place in prehistoric times had occurred to be a thriving port with intense social stratification, and a lifestyle that made the Head of Investigation John Henderson to talk about the Greek Pompeii,” note the authors of a 2016 study. Several studies suggest that the city may have been submerged around 1000 BCE. Three theories attempt to explain how this happened: one suggests a gradual rise in the sea level, another a sinking of the land, and a third that a combination of earthquake and tsunami caused the city’s disappearance.

Digital reconstruction of Pavlopetri. Credit: University of Nottingham

Temples, jewels and sunken ships

In the year 2000, underwater archaeologist Franck Goddio discovered the ancient city of Thonis-Heracleion, located seven kilometres off the Egyptian coast in the Nile Delta. Founded in all likelihood in the 8th century BCE, this port city served for centuries as the main gateway to Egypt for ships arriving from the Greek world, and it was renowned for its commercial and religious significance.

The city suffered several natural disasters, and it is believed that an earthquake eventually caused it to sink beneath the sea. The European Institute for Underwater Archaeology has studied the submerged site and uncovered more than 60 shipwrecks near its ruins, reflecting the area’s intense marine activity. During excavations in 2023, researchers discovered the remains of a sanctuary dedicated to the Greek goddess Aphrodite, as well as a temple to the god Amun. They also found gold jewellery, silver artefacts, ceramics, and bronzes imported from Greece. Well-preserved wooden structures were also found, as well as ritual and funerary items, such as silver libation dishes (used for offerings poured in honour of a deity) and alabaster vessels for perfumes and ointments.

Heracleion, the ancient Egyptian port city that collapsed beneath the sea.

The "wickedest" city of the New World

Port Royal, in Jamaica, was once the most important commercial center in the New World. The town, “commonly referred to as "the wickedest city on earth", conjures images of marauding pirates, daring naval conquests, looting, riches, destruction and devastation,” according to the United Nations Educational, Scientific and Cultural Organization (UNESCO).

It began as a strategic cay used for cleaning and refitting ships when the Spanish arrived in the 16th century. Following the English conquest in 1655, it quickly developed into a fortified city and flourished as the principal commercial and naval port of the English Caribbean. Its economy thrived on the slave trade, sugar, and privateering—and it gained notoriety as a lawless paradise of alcohol, money, and sex, where one in four buildings was reportedly either a bar or a brothel.

Old map of Port Royal. Credit: The Gentleman’s Magazine / Wikimedia Commons

Excavations have revealed that beyond its many taverns, Port Royal also featured workshops, homes, and warehouses. The city stood out for its wealth and its prominence as a key center of trade and piracy in the Caribbean. In 1692, a devastating earthquake caused two-thirds of the city to sink into the sea. Subsequent fires and hurricanes thwarted any attempts at full recovery. Although Port Royal persisted as a British naval base and secondary port, it never regained its former status as a thriving hub of commerce and piracy. Today, it survives as a small fishing village in Jamaica.

In early 2024, the Community of Madrid approved the Cognitive Hospital project, a comprehensive management platform for hospital infrastructure. 
The project is based at the Hospital del Henares (Madrid) and is being developed by a consortium led by Sacyr, with participation from companies like Sener, Cuatro Digital, Aptica, Fracttal, and Open Ingenius. It is a three-year project with a €6.1 million budget, funded by the Community of Madrid through the European Regional Development Fund (ERDF).

As a result of this project, the hospital will benefit from continuous connectivity, sensors measuring air quality with virus-capturing nanofibers, devices improving energy efficiency, virtual reality technologies simulating evacuations, geolocation of equipment, and modules measuring the hospital's overall environmental impact.

After a year of work, Sacyr has developed the core of the cognitive platform. This platform will connect all existing management software systems at the Hospital del Henares, alongside the innovative solutions, technologies, and sensors developed and implemented within the project.

The platform developed by Sacyr integrates all innovative elements of the Cognitive Hospital project by creating an intelligent software platform that facilitates the digitalization of the hospital. This improves the experience for both patients and staff while promoting the sustainability of the facility's operations.

This is creating a smart hospital capable of autonomously managing its operations more efficiently, using real-time data generated during the infrastructure's operation.

"The new software platform is already operational and already receiving data from systems currently in place at the Hospital del Henares, as well as from the new sensors, LiDAR systems, and other devices being installed," explains Alba Rocío Pérez, Innovation Manager with Sacyr's Strategy, Innovation and Sustainability Department.

During the project's first year, the partners conducted an in-depth study of the hospital's physical and digital structure, using the Smart Readiness Indicator (SRI) methodology to objectively assess the building's "intelligence" level. This helped identify potential improvements and address deficiencies more efficiently than current methods allow.


 

Furthermore, Sacyr has advanced the implementation of a space management system using LiDAR technology. Its primary function is to identify and prevent overcrowding or queuing in customer service areas. "We aim to enhance patient comfort and reduce waiting times through innovative data collection," Alba Rocío explains.

Through the creation of a point cloud with LiDAR technology, Sacyr has also successfully obtained a BIM (Building Information Modeling) model of the hospital building. Thanks to the technology developed within the Cognitive Platform and the BIM model, a digital twin of the Hospital del Henares has been created, providing updated information on the building, systems, and equipment.

Sacyr Engineering contributed to the project in its first year by streamlining the BIM model. This allows for more efficient work with the building model, both during the construction and maintenance phases.

The second year will focus on completing a comprehensive analysis of the hospital, including impacts related to the use and maintenance of its facilities (consumption, waste generation, and maintenance activities).

PTEC Award

The Cognitive Hospital project recently received the Spanish Construction Technology Platform (PTEC) Award for the Best R&D&I Project in the construction sector.

ISABEL RUBIO ARROYO | Tungsteno

Before any woman in the United States earned an engineering degree, Emily Warren Roebling was already leading the construction of the Brooklyn Bridge. After the death of her father-in-law and the illness of her husband, she stepped in to take charge of the project, becoming the first female field engineer and overseeing every detail of its completion. Her life and legacy secured her place as a key figure in the history of engineering.

The tragedy that led her to lead the Brooklyn Bridge project

Warren was born in 1843 in Cold Spring, New York, into an upper-middle-class family. She attended the Georgetown Visitation Convent, a prestigious girls-only school, where she studied mathematics and science despite prevailing beliefs that higher education was unnecessary for women. Later in life, at the age of 56, she earned a women’s law course certificate from New York University and won a $50 prize for her essay "A Wife's Disabilities," in which she criticised the legal restrictions on women's financial independence.

Warren met Washington Roebling, a young officer, while visiting her brother at an army camp during the Civil War. They fell in love and soon married. In 1867, before construction of the Brooklyn Bridge began, the coupled travelled to Europe on a belated honeymoon to research technical innovations for the project that her father-in-law, John A. Roebling, had designed. There they studied the use of caissons—pressurised watertight chambers used to build underwater foundations for bridges—as well as other advanced bridge-building techniques.

Tragedy propelled Emily Warren Roebling to the forefront of engineering. In 1869, her father-in-law died of tetanus after an accident on the construction site. Her husband, Washington Roebling, assumed the role of chief engineer, but became gravely ill. Exposed to the dangers of the newly introduced pneumatic caissons used to construct the bridge’s foundations, he developed severe decompression sickness and was confined to bed.

Warren took the lead in building the Brooklyn Bridge. Credit: Intrigued Mind

From self-taught engineer to women's rights activist

With Washington unable to work, Warren assumed a crucial role: she managed her husband's communications, studied his plans, copied his specifications, and relayed instructions to assistant engineers. Washington described her as his "wisest counsellor" and "a woman of infinite tact." She visited the construction site daily, attended board meetings, and oversaw the project, all the while carefully concealing the extent of her involvement in order to protect her husband's reputation. Along the way, she learned about material strength, stress analysis, cable construction and the mathematics of the catenary curve.

Shortly before the bridge's inauguration, she drove a carriage across it to test its vibrations, carrying a rooster as a symbol of victory. On 24 May 1883, she became the first person to cross the Brooklyn Bridge in a carriage during its official opening, and later that day she hosted a reception at her home for US President Chester A. Arthur.

After the bridge’s completion, she travelled alone to Europe, where she met Queen Victoria in London and attended the coronation of Tsar Nicholas II in Moscow. Upon her return, she gave lectures about her experiences in Russia for the Federation of Women's Clubs, becoming increasingly active in the fight for gender equality. She toured the country, speaking in defence of women's suffrage and social services for the poor, and urged women to study law.

The Brooklyn Bridge was the longest suspension bridge in the world when it opened on 24 May 1883. Credit: Jf Szekely / Wikimedia Commons

An "everlasting monument" to sacrifice

In 2024, an average of 103,051 vehicles, 28,845 pedestrians and 5,504 cyclists crossed the Brooklyn Bridge every day. This infrastructure has become a living legacy of Warren's vision, effort and determination. "Wife, mother, lecturer, student, world traveller and clubwoman, this multi-faceted Victorian woman was a pioneering example of independence," says the American Society of Civil Engineers (ASCE).

As New York Congressman Abram Hewitt said during the opening ceremony, the bridge represents "an everlasting monument" to Warren's dedication and personal sacrifice. "The name of Emily Warren Roebling will...be inseparably associated with all that is admirable in human nature and all that is wonderful in the constructive world of art," he said.

Tungsten is a journalistic laboratory that explores the essence of innovation.

They say words are carried on the wind. Perhaps that’s why we created the “Strategic Plan: Carrying the Word” communication series, in which Sacyr professionals explain the main concepts of our new strategic cycle in their own words.

The terms chosen are Rating, Water, AI, Transport, Sustainability, P3, Security, Diversity, X3, and Social.

Over the course of 10 months, we travelled to 10 locations with 10 different teams in order to determine the ambitions and ideas that will guide our strategy in the coming years.

Since the launch of our Strategic Plan in May 2024, we have continued to grow and consolidate our position as a leader in the development of greenfield infrastructure transport, social and water projects. 

We will discuss the journey of the “Strategic Plan: Carrying the Word” throughout Sacyr.

Rating

Our investment team is working to obtain an investment-grade rating. This goal will consolidate our global growth as a concessionaire, allowing us to accelerate our development in international markets.

Water 

We provide our experience, technology, and innovation in end-to-end water cycle management to ensure water quality and access. In early 2025, we secured our first major concession contract in this strategic cycle with the wastewater treatment, reuse, and subsequent sale project in Antofagasta (Chile).

AI

Because technology is crucial to achieving our strategic objectives, our ICT team works to ensure the optimisation and automation of processes, while predictive analysis allows our professionals to focus on more strategic tasks.

Transport

We “teleport” to the recently opened Belfast Transport Hub for the first international chapter of our “Strategic Plan: Carrying the Word”. By developing transport infrastructure, we drive connectivity, improving the links between people and communities.

Sustainability

Colombia’s Canal del Dique demonstrates our work toward a better world. Ensuring our projects have a positive impact on the surrounding communities is the foundation of the 24-27 Sustainable Sacyr Route, which is based on four pillars: the planet, people, prosperity, and governance.

P3

Public-Private partnerships (P3 or PPP) are essential to the advancement of society. Infrastructure development through P3 projects facilitates their maintenance, operation, and improvement under optimal conditions. Chile is one of our main concession markets.

Safety

In every project we undertake, we implement strict health and safety protocols that allow us to meet our objectives while protecting our teams. Our preventive culture and the commitment of our senior and middle managers are the driving forces that help us minimise accidents and increase safety training. 

Diversity

We will only achieve the ambitious goal of becoming the world’s largest greenfield infrastructure developer by 2033 with diverse and inclusive teams. Our Diversity, Equity, and Inclusion Policy and Plan guide us in our commitment to gender, functional, cultural, demographic, generational, experiential, and cognitive diversity and establish concrete objectives, measures, and indicators through 2027. 

X3

In this strategic cycle, we will triple the invested equity and our P3 asset valuation. Translated into figures, we aim to achieve an invested equity total of 4.5 to 5 billion euros and an asset value of between 9 and 10 billion euros. Italy is one of our most important concession markets, where we will continue to grow in the coming years through the SIS consortium.  

Social

The Sacyr Foundation serves as a conduit for the positive impact of our professionals. More than 1,000 employees participate in volunteer programmes related to the Sacyr Foundation’s primary focus areas: early childhood development, environment, inclusion, emergencies, disabilities, and healthcare.

The materials passport is a unique digital document that gathers detailed information on each material used in a project, including its description, quality certifications, technical specifications, and geographical origin. This tool makes it possible to calculate the carbon footprint and optimize resource management throughout the entire life cycle of the product.

The pilot was carried out at the prefabricated bathroom factory in Jumilla (Murcia), in collaboration with the startup Cuatro Digital and suppliers such as Pladur and Canteras y Hormigones. The primary aim was to establish a blockchain-based methodology to guarantee the traceability of materials used in modular bathroom production.

“This system collects key information on every material, allowing us to measure its environmental impact and generate precise traceability reports,” explains Patricia Díaz, Innovation Business Partner with Sacyr Engineering and Infrastructure.

The bathrooms produced with this methodology were supplied to the NODE housing development in Carabanchel (Madrid). Thanks to this solution, it has been possible to:

• Connect the different stakeholders across the value chain during the industrialized construction process.
• Ensure efficient management of resources.
• Advance toward more sustainable operations through a secure platform that provides insights into material lifespan and reuse potential.

Recognized by Madrid City Council

The development of this pilot was made possible thanks to an award from Madrid City Council, granted in the first edition of the “Blockchain and Advanced Technologies Projects” competition. In this call, Cuatro Digital, presented by Sacyr, was selected as the winner.

These awards seek to recognize and support startups and professionals that stand out for proposing innovative solutions based on disruptive technologies.

Next steps: scaling up and regulatory alignment

Following the success of the pilot, we are now focused on scaling the model to other projects and construction processes. This work aligns with the European regulatory framework, which in the coming years will require detailed information on the materials used in all buildings within the European Union.

“We are working to scale up this solution and get ahead of upcoming European regulatory requirements,” concludes Patricia Díaz.

Luis Esteban
Director Arquitectura en Sacyr Ingeniería e Infraestructuras

Se cumplen 15 años de la rehabilitación del Palacio Velázquez del Parque del Retiro (Madrid) por parte de Sacyr, en la que tuve la suerte de formar parte del equipo como jefe de obra. 

Los trabajos incluyeron la ejecución de una nueva cubierta y la restauración integral del espacio interior. Un trabajo desafiante ya que el edificio cuenta con Nivel 1 de protección con grado singular y está catalogado, dado su valor histórico y artístico.

Fue la primera obra de Sacyr en el emblemático pulmón verde de la ciudad de Madrid y un orgullo para la compañía participar en la restauración del Patrimonio Nacional. 

Imagen del interior recogida de la cuenta oficial del Palacio de Velázquez.

El Palacio de Velázquez fue inaugurado en 1883 como pabellón temporal para la Exposición Nacional de Minería, Artes Metalúrgicas, Cerámica, Cristalería y Aguas Minerales, que se celebró en Madrid ese año, durante el reinado de Alfonso XII.  

Su arquitecto Ricardo Velázquez Bosco le dió nombre al edificio y siguió para su proyecto el modelo que Joseph Paxton había establecido al proyectar el Crystal Palace de Londres. El diseño organiza una arquitectura amplia, cubierta con bóvedas de estructura de hierro, donde el cristal se usa para dotar de iluminación natural a los grandes espacios interiores.

Acabada la exposición el edificio, lejos de demolerse, paso a destinarse a Museo de Ultramar.  Hasta la actualidad donde pertenece al Ministerio de Cultura, quien lo dedica a sala de exposiciones temporales del Museo Nacional Centro de Arte Reina Sofía.

Pese a la antigüedad del edificio, tiene un curioso y actual nexo de unión con la arquitectura contemporánea. Las columnas de fundición, que pueden ser una de las más singulares características del edificio, podrían considerarse como los primeros ejemplos de construcción industrializada porque se fabricaron en taller.  Siendo por tanto una de las primeras semillas de la prefabricación e industrialización, que después de tantos años, se retoma en la actualidad con mucha fuerza.  

  


En este contexto de la construcción del Palacio Velázquez, es relevante indicar que la producción y exportación de hierro había crecido enormemente en España a partir de 1875, y con ello surgieron en Madrid las primeras fábricas de hierro (fundido y colado), desde las cuales se suministró al proyecto.

Todo ello permitió que las columnas de hierro pudieran ser elegidas por catálogo y llegaran a la obra completamente terminadas, solo esperando a ser colocadas. 

El éxito de este edificio le supuso al arquitecto Velázquez el encargo de otros edificios importantes como la Escuela de Ingenieros de Minas y el Palacio de Cristal del parque del Retiro, donde continuó usando soluciones de estructuras metálicas de hierro fundido con el empleo añadido de grandes lucernarios.

Earlier this year, we launched the "Circular Transformation" series to highlight initiatives that aim to promote circularity, directly from the people leading the charge.

We're prioritizing the use of sustainable materials, preventing waste generation, and increasing reuse and recycling to create new forms of value.

Now that we're halfway through the campaign and the year, we're taking the opportunity to compile the initiatives from the series that we've published monthly. Our performance in Circular Economy has allowed us to reuse, recycle, and recover more than 23 million tons of waste since the beginning of 2020.

Here are the initiatives from the Circular Transformation series!

Treatment of the water used in the tunnel excavation at the Port of A Coruña

Tunnel and gallery excavation requires water for the machinery to drill through rock. To reuse this water, we've installed two treatment plants at the expansion project of the access to the Outer Port of A Coruña (Spain), which we are developing for Adif.

After treatment, we discharge it into natural flows, reservoirs, or the sea, where it can be used for industrial purposes.
 

A brine collector that extends the life of materials in the Llobregat Basin

We have renovated the facility with a new brine collector of 8.7km and 184 liters per second capacity. During the project, we recovered polyethylene pipes from the bypasses of the work and pavement milling so that the city council of Sallent (Barcelona) can use it in future works.

With these initiatives, we improve environmental protection, modernize infrastructures, regenerate water, and improve mining activities.

Reused Materials at the La Llagosta Logistics Terminal

We are developing the construction of the La Llagosta (Barcelona) international logistics terminal for Adif to turn it into a strategic logistics hub on the Mediterranean corridor.

The project stands out for the reuse of asphalt pavement, ballast, and concrete debris, which allows for a positive environmental impact and cost savings by reducing the consumption of new materials.

Circular Initiatives in Madrid Construction Projects

We manage sacks, recycle plasterboard, and reuse pallets. These are some of the initiatives we are carrying out in Madrid to minimize the environmental impact of our construction projects.

Zero Waste Certification for Our Hospitals in Chile

Our best practices have allowed us to obtain the Zero Waste distinction in the Sótero del Río, Provincia de Cordillera, and Buin Paine hospitals.

Obtaining this certification reflects the full alignment of the projects in Chile with Sacyr's Zero Waste Plan, which seeks to achieve 80% of waste reused, recycled, and recovered annually.
 

Circular economy as an economic model to fight climate change

Prioritizing materials with recycled content, working with local suppliers, and properly managing the waste we generate are key factors in reducing emissions.

Through this approach, we have managed to reuse, recycle, and recover 92% of the waste generated in Sacyr's activities in 2024.

The Zero Waste Plan is the vehicle for achieving our circular economy goals and guides our steps in this area. With the impetus of the plan, we have avoided the emission of 10,000 tons of CO2eq since 2020 and expect to reduce 15,000 tons of CO2eq by 2030.

Until the end of the year, we will continue to showcase Sacyr's circular economy projects. Follow us closely on our social networks and don't miss the upcoming content of Circular Transformation.

The new Sótero del Río Hospital (Santiago de Chile, Chile) is bound to be one of the largest healthcare facilities in Latin America, and also one of the most sustainable. This project, developed by Sacyr Engineering and Infrastructure, has obtained the Zero Waste certificate, and is now conducting a novel pilot to introduce a hybrid boom truck fueled by green hydrogen into its fleet. 

The aim is to improve the efficiency and reduce emissions produced by diesel trucks by implementing a hybrid green hydrogen injection system into the combustion chamber.

The new dual combustion system has been designed in Italy specifically for this vehicle model, as it is the first time it has been implemented in a boom truck. The installation of this kit was carried out by AndesH2, a company that has experience in Colombia and Chile. 

"This innovative project arose from the urgent need to reduce the emissions generated by the equipment used on site. Considering that, in the long term, we must focus on progressively forming and shifting a fleet of heavy equipment with zero emissions, including hopper trucks, backhoes, trucks with lifting equipment, among others," explains Rodrigo Fernández, Construction Manager at Sacyr's Metro L7 in Chile.

"Our main purpose is to evaluate the technical and economic feasibility of the gradual conversion of Sacyr's current fleet to low-emission equipment, thus ensuring compliance with more rigorous environmental standards and actively contributing to the sustainability of the sector," Rodrigo says.
"Our goal is to evaluate the benefits of introducing synthetic fuels such as green hydrogen," explains Etienne Valdés, R+D with Sacyr Chile's Innovation Department.

The project consists of the implementation of a dual combustion system designed in Italy specifically for the truck model. The installation of this kit was carried out by AndesH2, a company that has experience in Colombia and Chile implementing these modifications and being the first time that it has been carried out on a boom truck.

This process is called dualization or blending of green hydrogen to improve fuel efficiency. The installed kit is connected to the hydrogen tanks and injects the appropriate hydrogen percentages into the engine.
 

Preliminary first tests have already been carried out using 4 kg of hydrogen for a week in a controlled setting closed to traffic.

"It takes less hydrogen than diesel to reach the same energy efficiency in the engine. The engine is modified to inject 15% hydrogen on average into the fuel. This improves efficiency and reduces the use of diesel, so the engine is more efficient, and produces fewer emissions," explains Etienne.

The use of this fuel poses further challenges. "We have to create a safety plan with this equipment, and, as a second step, homologate the truck for use on public roads. Currently, we are managing an experimental permit certificate through the Ministry of Transport and Telecommunications, explains the expert.

ISABEL RUBIO ARROYO | Tungsteno

St. Peter's Basilica is not only the spiritual heart of Catholicism, but also a monument that encompasses centuries of art, architecture and mystery. From its origins in the time of Constantine to its underground nooks and passageways, this monumental temple continues to fascinate millions of faithful and visitors every year. Here are some of the most surprising and lesser-known facts about the world’s largest Christian church.

The history behind St. Peter's Basilica

The St. Peter's Basilica that we know today was not the first church to occupy this site. In the 4th century, Emperor Constantine commissioned a church to be built here, which stood for over a thousand years. However, it was not until 1506 that Pope Julius II decided to replace it with a new, monumental construction in tribute to the Apostle Peter, who is believed to have been buried on that very hill in the Vatican. Construction took almost 120 years and involved the participation of prominent Italian architects and artists such as Donato Bramante, Michelangelo and Raphael. While Bramante took inspiration from the Roman Pantheon for his initial design, Michelangelo was responsible for the iconic dome.

The imposing interior of St. Peter's Basilica. Credit: Fabbrica di San Pietro / St. Peter's Basilica

The largest Christian church in the world

This monumental work embodies the splendour of the Vatican. At 136.5 metres high, its dome is the tallest in the world. The interior covers more than 15,000 square metres and its total area extends to about 2.3 hectares. Recognised as a UNESCO World Heritage Site in 1984, it is considered the largest Christian church in the world.

View of the interior of the dome of St. Peter's Basilica. Credit: Fabbrica di San Pietro / St. Peter's Basilica

Saints welcome the faithful in the iconic St. Peter's Square

In front of the basilica, St. Peter's Square can host thousands of people. According to the Vatican's official website, Vatican News, more than 100,000 people attended Pope Leo XIV’s first greeting from the square. Designed by Gian Lorenzo Bernini, the square features an elliptical colonnade arranged in 284 columns in four rows, which symbolise the embrace of the Church. At its centre stands an Egyptian obelisk, flanked by two fountains. The square is adorned with statues of saints who welcome visitors and, according to the Vatican, represent the union between the heavenly and earthly churches.

St. Peter's Square and its iconic colonnade. Credit: Fabbrica di San Pietro / St. Peter's Basilica

The popes who rest beneath St. Peter's Basilica

Throughout history, St. Peter's Basilica has inspired numerous legends about hidden passageways and secret chambers beneath its structure. Beyond the myth, the truth is that there are several real underground spaces, such as the Vatican Grottoes and the Necropolis, which house ancient papal tombs. Although Pope Francis has chosen the Basilica of Saint Mary Major as his burial place, the remains of 91 popes lie beneath Saint Peter's. These papal tombs are located alongside those of members of royalty and nobility. Notable pontiffs buried here include emblematic figures such as Pius X and John Paul II. For archaeologists, this collection of tombs is a historical treasure of incalculable value.

The Vatican Necropolis. Credit: Fabbrica di San Pietro / St. Peter's Basilica

The Vatican's secret passageway

Very close to this monumental complex is the Corridor of Borgo, also known as the Passetto de Borgo, a fortified corridor connecting Vatican City with Castel Sant'Angelo. Although it doesn’t pass directly under the basilica, it forms part of the Vatican's defensive system and was constructed as an escape route for popes during times of crisis. The corridor’s most famous episode occurred during the Sack of Rome in 1527, when Pope Clement VII managed to escape through it and took refuge in the castle. According to Rome's Department of Major Events, Sports, Tourism and Fashion, “the Pope was saved by the skin of his teeth, running through the narrow corridor, while the courtiers and nobles who accompanied him protected him with a dark cloak to prevent his white robe from becoming an easy target.” Today, some sections of the Passetto can be visited on guided tours from Castel Sant'Angelo, revealing one of the most strategic and lesser-known corners of Vatican history.

View of the Passetto di Borgo from Castel Sant'Angelo in Rome. Credit: Rome's Department of Major Events, Sports, Tourism and Fashion

Tungsten is a journalistic laboratory that explores the essence of innovation.

In this installment of the Circular Transformation series, Paula Honrado and Gonzalo Vicente, from the Environment, Quality and Energy Department, explain the concept of the circular economy as a model to keep natural resources within the production cycle.

Prioritizing materials with recycled content, working with local suppliers, and properly managing the waste we generate are key factors in reducing emissions.

In 2024, over 92% of the waste generated from Sacyr’s activities has been reused, recycled, or recovered. Since 2020, we have avoided emitting nearly 10,000 tons of CO2 and have recovered more than 23 million units of waste.

In the May edition of the "Circular Transformation" series, we travel to Chile to meet the teams from Sacyr Engineering and Infrastructure who have achieved the Zero Waste certification for the Sótero del Río, Provincia de Cordillera, and Buin Paine hospitals.

This certification, promoted by the European Union, OECD, and United Nations Environment Programme, is obtained through an external audit that verifies that between 90% and 100% of the waste generated on-site is recovered or repurposed. By valorizing waste, the need for landfill disposal is avoided, along with the environmental impact associated with transportation.

This certification encourages us to continue excelling in waste management by converting waste into raw materials and reintegrating them into the value chain. It is also directly aligned with Sacyr’s Zero Waste Plan objectives, which aim to “achieve 80% annual reuse, recycling, and recovery of waste.” The next step is to carry out external audits with AENOR at the three hospitals.

In 2024, Sacyr was the first company in Chile to obtain the AENOR Zero Waste certification for the hospital project at Sótero del Río, having recovered 165,181 tons of waste — over 93% of the total generated.

The key to this partnership between Sacyr Agua and Dutch company RedStack lies in removing salt from brackish water while generating energy in the process. The two companies will collaborate on various electrodialysis solutions to make this possible.

Electrodialysis reversal (EDR) enables the desalination of brackish water from diverse sources. Its counterpart, reverse electrodialysis (RED), generates energy by exploiting the salinity gradient between brine and freshwater.

Sacyr brings significant experience with EDR technology, having built the world’s largest EDR facility: the Abrera plant in Barcelona, with a capacity of 200,000 m³/day. We also operate other plants, such as Valle Guerra (San Cristóbal de La Laguna, Tenerife), where we desalinate treated wastewater using a membrane bioreactor (MBR) to produce high-quality water for irrigation.

Reverse electrodialysis (RED) generates energy by utilizing the salinity difference between two water streams—typically brine and freshwater. We are especially interested in applying RED to recover energy from the combination of brine from desalination plants and effluent from municipal wastewater treatment facilities.

Sustainable use of brine

Sacyr and RedStack have successfully tested RED technology at a pilot project through the LIFE HyReward project, funded by the European Union. The project has achieved energy recovery rates of up to 0.3 kWh/m³.

In LIFE HyReward, we explored the potential of generating renewable electricity from the brine produced during desalination. The goal was to enhance the energy efficiency of the process by combining reverse osmosis with reverse electrodialysis. Integrating this approach with conventional technologies makes desalination more sustainable by recovering electrical energy from brine before it is discharged into the sea, thereby reducing CO₂ emissions.

As part of their long-term collaboration, Sacyr will deploy REDstack’s EDR and RED systems in projects focused on salt removal and energy generation from brine streams. Additionally, the two partners are currently evaluating the site for a pilot plant that will use RedStack’s next-generation EDR technology, which offers advantages such as greater productivity and lower energy consumption compared to other solutions on the market.
 

ISABEL RUBIO ARROYO | Tungsteno

From the Hand of the Desert in Atacama, Chile to the Hands of Harmony in South Korea, or the hands of the Golden Bridge in Vietnam—all these sculptures feature the same body part, but each has its own story. Why have so many artists found inspiration in the human hand? We investigate the mysteries behind the largest hands on the planet.

A hand in the middle of the desert

In the heart of the Atacama Desert in Chile, a giant hand 11 metres high juts out of the arid sand, its fingers pointing skywards. The reinforced concrete sculpture was created in 1992 by the Chilean artist and sculptor Mario Irarrázabal. Located about 75 kilometres north-west of the city of Antofagasta, it has become one of the main tourist attractions in the area. But it is not the only hand that Irarrazábal has created. There are also other versions on the Playa Brava beach in Punta del Este, Uruguay, and in the Juan Carlos I Park in Madrid.

The sculptor was commissioned by the cement company Melón Hormigones to make Hand of the Desert for the entrance to their plant in Los Andes." Irarrazábal recounts: "It would have looked terrible. Luckily, Melón was going through a huge financial crisis at the time and they told me to forget about it." He showed the project to an engineer from Antofagasta, who asked him to let him talk to his friends, who were "mining engineers and very technical people." These people, above all, "loved the desert." "Let's do it," they replied.

Hand of the Desert is one of Chile's most iconic sculptures Credit: PxHere

The engineers didn't even ask about the meaning of the hand. Each visitor can give it their own interpretation, says its creator. While some believe it is the city saying farewell to the traveller, others claim it represents the victims of injustice and torture during Chile’s military dictatorship from 1973 to 1990. Today, many people come here to observe the starry sky. "Here, you can see the plane of the Milky Way, the Southern Cross and the Magellanic Clouds, as well as a large number of bright stars, such as Antares, Altair and Alpha Centauri, among many others," says astronomer Maximiliano Moyano D'Angelo.

Hands supporting bridges or emerging from water

In the hills of Vietnam, other giant concrete hands cradle a 152-metre-long pedestrian bridge suspended almost 1,400 metres above sea level. The bridge is known as Cau Vang (Golden Bridge) and was designed to make visitors feel like they are taking a stroll on a shimmering thread stretched across the hands of God.

This megastructure is part of a 1.7 billion euro project to attract tourism to the Thien Thai gardens at the Bà Nà Hills Resort. And it worked. Thousands of tourists have flocked to the area and pictures of it have gone viral on social media. "We’re proud that our product has been shared by people all over the world," TA Landscape Architecture's principal designer and founder Vu Viet Anh told AFP.

The Golden Bridge has gone viral on social media. Credit: Amazing Things in Vietnam

A pair of similar looking hands can be found in Homigot, South Korea. These imposing steel hands face each other (about 100 metres apart) and represent coexistence and harmony. They are known as the Hands of Harmony. One of them rises from the sea and offers a unique view at sunrise, while the other is on land at the Homigot Sunrise Plaza. Located at the easternmost tip of South Korea, Homigot is the first place in the country to see the rising sun. In fact, a sunrise festival is held here every New Year’s.

These are just some of the most striking giant hands on the planet, but there are many more. Italian artist Lorenzo Quinn designed six pairs of monumental stone hands for the 2019 Venice Art Biennale, which come together to symbolise "six of humanity’s universal values: friendship, faith, help, love, hope and wisdom." Other sculptures include the Praying Hands in Tulsa, Oklahoma; the Holocaust Memorial in Miami Beach, Florida; and the Caring Hand in Glarus, Switzerland. Their ability to convey universal meaning and their powerful visual impact have made these giant hands a magnet for millions of tourists around the world.

Tungsteno is a journalism laboratory to scan the essence of innovation.

ISABEL RUBIO ARROYO | Tungsteno

From a young age, Danish architect Bjarke Ingels dreamed of becoming a cartoonist. Hoping to improve his drawing skills, he enrolled at the Royal School of Architecture in 1993.

“Drawing is my superpower. It was during my childhood: in kindergarten, in high school. I was always the best at drawing,” he said in an interview with the Spanish newspaper El País. At that time, he had no idea that he would become one of the most famous architects on the planet.

From aspiring cartoonist to influential figure

In 2016, when he was 42 years old, Time magazine named him as one of the 100 most influential people in the world. “I do not consider Bjarke Ingels the reincarnation of this or that architect from the past. On the contrary, he is the embodiment of a fully fledged new typology, which responds perfectly to the current zeitgeist," said renowned architect Rem Koolhaas, who worked with Ingels for a time. Koolhaas sees the Danish architect as “completely in tune with the thinkers of Silicon Valley, who want to make the world a better place without the existential hand-wringing that previous generations felt was crucial to earn utopianist credibility.”

Ingels, 49, founded the architecture firm Bjarke Ingels Group, better known by its acronym BIG, in 2006. The firm is behind landmark projects such as the VIA 57 West skyscraper in Manhattan, Google's North Bayshore headquarters in California, and the 8 House housing complex, Superkilen Park and the Amager Resource Center waste-to-energy plant in Copenhagen. BIG also designed LEGO House, a giant structure that appears to be built of LEGO bricks, which began construction in 2014. What all these structures have in common is innovative design.

Ingels is an architect recognised worldwide for his innovative and avant-garde approach. Credit: Architects not Architecture

A giant LEGO house

Ingels is a LEGO enthusiast. Before he and his team set to work on the project to build a giant LEGO house, they spent time playing and building with these iconic bricks. “They soon discovered that the systematic creativity of LEGO play often matched the way they approached an architectural task,” the LEGO Group explains.

The giant structure designed by Ingels, known as LEGO House, is an educational and activity centre in Billund, Denmark. The architect's idea was to create “a cloud of interlocking LEGO bricks… a literal manifestation of the infinite possibilities of the LEGO brick.” The aim was to stack 21 white bricks, one on top of the other, and crown them with a keystone inspired by the classic eight-knob LEGO brick. Underneath, there is a covered public square and interconnected terraces.

LEGO House has a total floor area of almost 12,000 square metres, of which 8,500 m² are above ground and 3,400 m² are below ground. The 23-metre-high building is clad in white bricks measuring 18 by 60 centimetres to give the impression that the structure is composed of LEGO bricks. The terraces are brightly coloured and their surfaces are made from materials left over from the production of trainers for several international sports brands, says the company.

LEGO House opened its doors for the first time in 2017. Credit: WIRED UK

Today, Ingels is considered a visionary and creative artist who has transformed the landscape of architecture. He describes himself as someone “capable of changing things.” He is convinced that “architecture can be an art, but actual art must be transformative.” “Steve Jobs said that for every 20 engineers, one is an artist and the rest are engineers. I think that can be applied to architecture, handball and teaching. A teacher who is an artist can change people,” he concludes.

Tungsteno is a journalism laboratory to scan the essence of innovation.

ISABEL RUBIO ARROYO | Tungsteno

The Silk Pavilion I is an architectural structure created with a base woven by a robotic arm and the help of thousands of live silkworms. "We ordered 6,500 silkworms from an online silk farm. After four weeks of feeding, they were ready to spin with us," says Neri Oxman, the leader of the initiative. We investigate the most innovative projects of this 48-year-old Israeli-American architect, known for fusing architecture, design, biology and materials engineering.

From Henry Ford to Charles Darwin

Assembly lines have dictated a world made of parts, "framing the imagination of designers and architects who have been trained to think about their objects as assemblies," says Oxman. In contrast, the architect argues that assemblages of homogeneous material are not found in nature. She cites human skin as an example. "Our facial skins are thin with large pores. Our back skins are thicker, with small pores. One acts mainly as a filter, the other mainly as a barrier, and yet it is the same skin: no parts, no assemblies," she said in a TED talk.

Architects and designers face a dichotomy: that of working between the machine and the organism. Or as Oxman puts it, "between the chisel and the gene, between machine and organism, between assembly and growth, between Henry Ford and Charles Darwin." "My work, at its simplest level, is about uniting these two worldviews, moving away from assembly and closer into growth," she explains.

Oxman explores how digital fabrication technologies can interact with the biological world. Credit: TED

More than 6,000 silkworms weave the architecture of the future

It is in this fusion that one can understand her Silk Pavilion I, in which biological silk and robotically spun silk intermingle. To construct it, she and her collaborators carefully placed 6,500 worms on the bottom edge of a silk frame spun by a robotic arm. The silkworms spun their silk, mated and laid eggs. In little more than two to three weeks, "6,500 silkworms weave 6,500 kilometres."

In this work, her two visions of the world are integrated: "One spins silk out of a robotic arm, the other fills in the gaps." "If the final frontier of design is to breathe life into the products and the buildings around us, to form a two-material ecology, then designers must unite these two worldviews," she says.

Later, the architect and her team developed the Silk Pavilion II. Commissioned for the Material Ecology exhibition at the Museum of Modern Art in New York, the structure is six metres high and five metres wide. "Ten days of co-creation among silkworms, humans and a robotic loom-like jig resulted in a structure made of silk threads longer than the diameter of planet Earth," explain its creators.

More than 6,000 worms were involved in the construction of the Silk Pavilion. Credit: Oxman

Fallen leaves, apple skins and shrimp shells

Oxman has become a prominent figure in the field of material ecology. This discipline integrates technological advances in computational design, synthetic biology and digital fabrication to create revolutionary design solutions inspired by nature. Her team in the Mediated Matter group at the MIT Media Lab experiments with everything from moss to mushrooms to apples.

One of her most striking projects is Aguahoja I, which aimed to develop a robotic platform for 3D printing biomaterials. The result is a pavilion made of 5,740 fallen leaves, 6,500 apple skins and 3,135 shrimp shells. Also noteworthy is her synthetic apiary, which aims to combat the decline of bee populations. This initiative proposes the creation of controlled, indoor environments that simulate ideal conditions for bees to thrive throughout the year.

Oxman's work has been seen on fashion catwalks and at design fairs. They have also been exhibited in prestigious museums around the world, including the Museum of Modern Art and the San Francisco Museum of Modern Art. In addition to winning several awards (including the Cooper Hewitt Design Award and the Vilcek Prize in Design), her creations led Jenny Lam, a leading technology designer, to describe Oxman as a contemporary Leonardo da Vinci.

Tungsteno is a journalism laboratory to scan the essence of innovation.

ISABEL RUBIO ARROYO | Tungsteno

Did you know that the Casa Rosada is not symmetrical due to the demolition of one of its parts? Why does it have a room full of false doors? What is the reason for its pink colour? We investigate the secrets of Argentina's seat of government, which was almost fitted with a great dome and hides priceless archaeological remains inside.

An asymmetrical masterpiece

The Casa Rosada is located in the historic centre of the Autonomous City of Buenos Aires. Its history begins in 1873, when the Palacio de Correos y Telégrafos (Palace of Posts and Telegraphs) was erected. A few years later, President Julio Argentino Roca dreamed of a definitive government palace. He designed it next to the Palacio de Correos. In 1886, the two buildings were joined by the majestic portico that now greets the Plaza de Mayo. Thus was born the Casa Rosada. More than half a century later, in 1938, the south wing was demolished, as a result of which the Casa Rosada is no longer symmetrical.

A hall full of false doors

The White Hall is where the most important acts of government take place. It is where official ceremonies are held, foreign dignitaries are received and important decisions for Argentina are made, such as the signing of international treaties. The balcony or high gallery that surrounds it hides a secret: it is adorned with false doors covered with mirrors. The aim is to create a sense of greater breadth and depth, enhancing the grandeur of the space. “Only one of the doors opens, the one located in the centre of the right-hand sector leading into the hall,” says the official website of the Casa Rosada.

The White Hall is the main hall of the Casa Rosada. Credit: Casa Rosada official website.

The mystery of its colour

The choice of pink for this emblematic building is often attributed to President Domingo Faustino Sarmiento. It is said that Sarmiento, who assumed the presidency in 1868, used the mixture of white and red to symbolise the union of all the political sectors of the time. “According to some versions, the original method used to obtain the characteristic pink colour of the Casa de Gobierno was to mix lime with cow’s blood, a common technique at the time due to the water-repellent (to avoid moisture and filtrations) and fixing properties of the blood,” says the official website.

The dome that never was

The Casa Rosada was on the verge of having a majestic dome on its west façade. In 1907, the General Directorate of Architecture presented a project to transform the building's appearance. The idea was to construct a great dome that would symbolise grandeur and modernity. In the end, however, the project was never carried out. The reasons why it was left on the back burner of history are not documented.

The Casa Rosada was on the verge of having a majestic dome. Credit: Casa Rosada official website

The buried past of the Casa Rosada

At the beginning of the 20th century, excavations were carried out in the Patio de las Palmeras of the Casa Rosada and an unexpected discovery was made: rounded stones that, according to the renowned archaeologist Juan Bautista Ambrosetti, could be instruments used by the indigenous people of the area. Specifically, he suggested that they could be stones from boleadoras (a throwing weapon used mainly for hunting) or hatchets used by the Querandí people, indigenous South Americans who inhabited the Pampean region of present-day Argentina.

These are not the only mysteries hidden in the Casa Rosada. In fact, other surprising discoveries have been made under its floors. Most recently, in 2018, during the excavation of a pit for the installation of new lifts, ruins were found three metres underground. They belong to the Palace of the Viceroys of the Río de la Plata and date back to the 18th century. All these curiosities make the Casa Rosada more than just a government building. It is a unique place that attracts millions of tourists every year for its historical, cultural and architectural value.

Tungsteno is a journalism laboratory to scan the essence of innovation.

Tenemos nuevo capítulo de Sacyr iPodcast en el que hablamos de innovación con expertos que nos inspiran y nos ayudan a ampliar nuestra visión.

En este nuevo episodio, Marta Gil continúa la conversación sobre industrialización en los procesos constructivos con Ramón Sanchez y Antonio Jiménez-Peña.

Si te perdiste el anterior, puedes verlo aquí

En el capítulo nuevo, analizamos las ventajas de esta técnica constructiva, a través de ejemplos concretos de proyectos industrializados de Sacyr.

Aquí puedes verlo completo: