Experimental Study On The Compressive Strength Of Mu Us Desert Sand High Strength Concrete

China is one of the major countries distributed widely with desert all over the world. With the increase of basic construction item in western district of China, more engineering sand is required. Ordinary medium sand resource no longer meets with the need of engineering. To meet the requirement of civil engineering construction for fine aggregate in these regions, decreasing the transportation of the ordinary fine aggregate, protecting natural environment, reasonably using local desert sand resources, reducing the construction cost, the engineering properties of the desert sand in these regions are investigated. The orthogonal experiment in this paper is designed to analyze the influence of water-binder ratio, fly ash content, sand ratio and desert sand replacement ratio on the compressive strength of high strength concrete at different curing age, peak strain of concrete and peak area of integral. The optimum mix ratio of desert sand high strength concrete is also given out, the optimum mix ratio of desert sand high strength concrete is that water-binder ratio, fly ash content, sand ratio and desert sand replacement ratio are0.24,10%,30%and30%. Experimental result shows that it is practical to use the desert sand from Mu Us desert to mix high strength concrete. On the basis of the results from the orthogonal experiment and single factor experiment, the optimum mix ratio of desert sand high strength concrete is that water-binder ratio, fly ash content, sand ratio and desert sand replacement ratio are0.24,10%,30%and20%, respectively, which provides an advice on the utility of desert sand in practice.