Le terrassement des marnes (LCPC 1979)

This 16mm film from the LCPC (Centre de Recherches et de Conservation des Patrimoines) focuses on the construction of the B71 motorway in the Clermont-Ferrand region in 1979. Based on regional geological data, it provides information on the origin, composition, and characteristics of marly materials which, due to their evolving nature, necessitate the implementation of specific techniques during earthworks. In the laboratory, the material's weathering process is reproduced by accelerating the phenomena through three types of tests: fragmentation, methylene blue, and water weathering. Find all our archives on the CLAP channel: https://clap.univ-eiffel.fr/channels/... © Gustave Eiffel University - LCPC - All rights reserved 2026 _______________ 🎓 Learn more about Gustave Eiffel University (#UnivEiffel): → https://www.univ-gustave-eiffel.fr/ →   / universitegustaveeiffel   → https://bsky.app/profile/univeiffel.b... →   / universit%c3%a9-gustave-eiffel   →   / universitegustaveeiffel