Coronavirus health crisis, the CSTB and its teams are mobilized to ensure the continuity of our services to all clients and partners
Under these exceptional circumstances, our priority is to prevent further risk for the people around us and with whom we work: nearly 1 000 employees of the CSTB and its subsidiaries, 6 000 clients and partners, 2 500 suppliers and sub-contractors. We shall all comply fully with the measures announced by the President of France.
SIMI 2019: The CSTB Group guides you in all phases of your construction or urban development
Risk mitigation, environmental requirements, usability and comfort in buildings and the city. To address these challenges, the CSTB Group assists you in your construction and development projects starting at the design phase.
The CSTB conducts an exceptional test involving the acoustic visualization of spalling during fire tests on a tunnel segment
The CSTB organized an exploratory test, in collaboration with Politecnico di Milano, to visualize concrete spalling during a fire test on a tunnel segment in the Vulcain furnace, with construction industry professionals in attendance.
Meet the CSTB at Equipbaie 2018
The CSTB guides industry stakeholders as they mobilize for the quality, sustainability and comfort of buildings. From November 20th to 23rd, experts from the CSTB's Windows & Glazing as well as Safety, Structures & Fire Performance departments will be at the Equipbaie international trade fair in Paris, at Porte de Versailles.
The CSTB's expertise supporting the Montpellier Sud-de-France train station
Comprising a roof made of ultra-high performance fiber-reinforced concrete (UHPFRC), with an openwork pattern of 10,000 glazed openings, the new train station in Montpellier is a technical and architectural innovation designed by Marc Mimram.
Greywater recycling: from concept to assessment
In October 2015, WisElement, a VSE, took advantage of the CSTB’s innovation advisory and support service, Ariane. Since then, it has been advancing step-by-step to increase the reliability of its innovative device for the instant recovery of heat from shower greywater. In 2016, the CSTB initiated a study of the technical and regulatory aspects of the innovation in the concept phase. The results may support a request for Technical Approval in 2017.
Stepped timber frame with invisible seams
Wooden beams make up the stepped structure of the huge roof covering the Aqualagon, the future water park of Marne-la-Vallée. The beams were made by Arbonis, using an innovative assembly technique, which received a favorable ATEx assessment in early 2016.
Insulated concrete form walls: four technological leaps supported by the CSTB
2016: The industrial companies GBE and Lafarge received a Technical Approval for a cast-in-situ wall with integrated insulation and concrete skin. This system has just taken its fourth technological leap, 20 years after the emergence of the first solution of its kind on the market. The CSTB has supported the advancement of this innovation since its beginnings. Working alongside the stakeholders through the assessment procedure, the CSTB helps ensure the safety and stability of their system.
Laboratory measurements and on-site measurements: getting closer
Thermal and acoustic insulation made of recycled paper, or cellulose wadding, is used in loose fill or in panels in buildings. A study initiated by a working group of industrial manufacturers with the CSTB explored to what extent the thickness of this loose fill insulation is subject to settling, over time. This is a major challenge in the context of energy transition. The goal is to assess this component's actual contribution to the energy performance of the building envelope.