**Béton armé** is a practical technical guide to reinforced concrete construction, focused on the materials, methods, and structural elements used in building work. The book addresses core components such as reinforcing bars, formwork, columns, beams, slabs, balconies, and stairs, presenting the subject in a hands-on manner for readers involved in construction, masonry, or related trades. Rather than offering a general overview of architecture, the guide concentrates on the execution and understanding of reinforced concrete elements. It is suited to professionals, students, and technically minded readers who need clear information about how these structural components are designed, assembled, and integrated into buildings.