Influence of addition dune sand powder to cement, on the properties physical-mechanical and deformability of concrete

This experimental work has focused on studying the possibility of using the dune sand powder (DSP) as a part mass addition to Portland cement. The incorporation of dune sand powder form substitution to Portland cement yields a new variety of cement compound with physicalmechanical properties superior to those of Portland cement. The results obtained show that the contribution of addition dune sand powder to the cement binding activity resulted primarily from three effects: Physical, physical-chemical and chemical. These effects act simultaneously and in a complementary way on the properties physical-mechanical and deformability of concrete.