Spain

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Waste or resources?
Arquitectura en Corto invites you to the screening of Gypsum Concrete, taking place on Wednesday, September 24, at 7:00 PM at Espacio Arquia in Madrid (C/ Tutor, 16). Directed by Simon Pénochet, the short film documents the research conducted by the French architecture firm Ciguë to transform demolition waste from a construction site on the outskirts of Paris into material for a new building being constructed on the same plot. The project proposes manufacturing concrete for floor slabs using recycled aggregates and gypsum as a binder—a material recyclable through urban mining processes that is available in large quantities throughout the Paris region. The film explains how testing validates the material for this application and concludes that using gypsum instead of cement reduces CO2 emissions by up to four times. In Spain, several projects have already been completed where materials found in situ were repurposed as resources for new construction. Following the screening, Héctor Fernández Elorza (hfe arquitectos) and Josep Ricart (HARQUITECTES) will discuss the topic and present examples of their small- and large-scale interventions—ranging from single-family homes to urban public spaces—where material reuse has been a core project strategy.

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ZIGURAT is organizing ConstruWeek 2025, an online event dedicated to the evolution of digital construction.

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The European Straw Building Gathering (ESBG 2025) will take place from September 18 to 21, 2025, in Canet de Mar (Barcelona). This international event will bring together professionals, collectives, and those interested in bio-construction and sustainability.

The Latin American Architecture Biennial in Pamplona (BAL) is a forum that, every two years, brings together the most recent and notable examples of emerging architecture in Latin America. The event strengthens ties between Latin American and Spanish architects, creating a shared space for dialogue, dissemination, and architectural creation that serves as a solid counterpoint to the Anglo-Saxon sphere.

Its primary objective is to contribute to the strengthening of emerging Latin American architecture as a tool for building a more just, open, democratic, and sustainable society.

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