Propriétés mécaniques des bétons autoplaçants à base des sédiments dragués »

Abstract

The environmental degradation is the depletion of raw materials are allowed problems of the century. Cement plants consume each day hectares of land of clay and limestone, on the other hand the deposition of sediments Drag pose a major environmental problem. In recent years, the use of self-compacting concrete in construction is gradually increasing, in parallel scientific research regarding the concrete trying to improve and enhance this concrete waste in the concrete and even his behavior vis-à-vis those that value. This research is to enhance the mud after the dredging of dams Chorfa and Fergoug (Mascara) in concrete placing and even its effect on physico-mechanical fresh and hardened theSCC. Seven formulations were studied: three SCC with substitution of mud of Chorfa's dam and three others with substitution mud of Fergoug's dam with substitution rates of 10, 15and 20%. The last concrete is without substitution of the Sediment. Testing and spawning state were carried out on hardened concrete to determine these properties physico-mechanical properties. The study found as different maturities, the mechanical strength of BAP-based mud calcined Chorfa perform better than those of BAP containing mud calcined Fergoug