The Use of Local White Sand in Making Lightweight Concrete

In our country, many places have large reserves of fine sand. Using this sand in the concrete will decrease fluidity, strength and increase content of cement. This paper shows the result of using white sand – fine sand in Da Nang to make lightweight concrete with hollow aggregate polystyrol. The kind of concrete is rather new on the market; study of components and production technology is not quite complete and synchronized. With experimental planning method, the paper has determined the composition of the best concrete with density of 1032,36 kg/m3 and strength of 6,46 MPa at 28 days, appropriate to make panels, light wall panels, block,…in construction. Based on the result obtained, this paper also proposes technology line of polystyrol concrete which can be applied in concrete factories in Da Nang as well as in the Central