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Born in Algeria, he moved to France in 1898. He studied engineering until 1920, then worked in motor and turbine factories.
In 1921 he met Le Corbusier who became influential in his career. After this meeting, Bloc moved towards architecture.
In 1922 he became the general secretary of the journal Science et Industrie. One year later, in 1923, he became the general secretary of the journal "Revue de l'ingénieur".
In 1924 he founded the journal "Revue général du Caoutchouc". In 1930 he founded the renowned journal L'Architecture d'Aujourd'hui, magazine still publishes, which he would direct for years.
Starting in 1940, Bloc turned towards sculpture. He created his first large sculptures in Paris between 1949 and 1956. From 1949 on, he founded several journals, such as "Art d'Aujourd'hui."
In 1951, in company with several artists, Bloc formed the group Espace. Its goal was to bring the ideals of constructivism and neo-plasticism to urbanism and the social arena. Artists and urbanists such as Jean Dewasne, Etienne Bóthy, Jean Gorin, Félix Del Marle, Edgard Pillet, Victor Vasarely and Nicolas Schöffer were members of the group, which considered architecture, painting, sculpture and art in general as a social phenomenon.
In 1952 the project and construction of the Bellevue house at Meudon was finished. From then until his death in 1966, Bloc worked primarily as a sculptor and decorator. In 1959 he participated at "documenta II" in Kassel. Bloc completed several sculptures, including pieces in Tehran, Nice, Jacksonville, and Dakar. His sculptures demonstrate an organic sculptural form somewhere between architecture and sculpture.
- L'Architecture d'aujourd'hui, 1930
- Aujourd'hui, 1955.