PHYSICO-CHEMICAL AND MECHANICAL CHARACTERIZATION OF LOCAL BUILDING MATERIALS IN CHAD

This research work is undertaken with the aim of contributing to development local building materials in certain provinces Chad (Abeche, NDjamena and Sarh). Physico-chemical mechanical characterizations are carried out on samples from these Provinces. It emerges geotechnical study that soils Abeche silty-clayey respective plasticity indices (PI) 32% for 19.86% as soil Sarh, it corresponds a loamy index 22.42%. The physico-chemical made possible determine significant quantities silica respectively 68.56% Abeche, 65.26% 76.83% Sarh. In addition, this analysis also organic matter present 0.667% 0.862% Ndjamena 0.412% Sarhrespectively. pH measurements using meter find values ​​for three (6.93 6.56 6.65) Sarh respectively.The characterization clay reinforced by cow dung various sites studied gave tensile strengths (1.30 MPa) (1.14 (1.12MPa) respectively, compression, (2.51MPa), (2.37MPa) (2.30MPa).It appears studies different Provinces suitable their valorization construction.