EXPERIMENTAL RESEARCH ON MIX DESIGN AND MECHANICAL PROPERTIES OF MANUFACTURED SAND CONCRETE
Manufactured sand is a fine aggregate from broken rocks, which can be used in the mixture of cement concrete instead of natural sand. In recent years, the resource of high quality natural sand is lacking, the use of manufactured sand in concrete structure has become more and more important. This paper presents the results of the mix design and compressive strength tests on concrete specimens using the manufactured sand from broken rocks as a fine aggregate, the replacement ratios of manufactured sand by mass to the natural sand are 0, 0.30, 0.50, 0.70 and 1.00 respectively. The mechanical properties of manufactured sand and the fundamental properties of the concrete using manufactured sand at different replacement ratio such as the compressive strength, the axis compressive strength, the split strength, the elastic modulus and the compression stress-strain curve are analyzed and discussed. The optimum replacement ratio and the optimum mix design of the concrete are suggested. This could be used as a reference for the applications of the concrete using the manufactured sand as a fine aggregate in engineering.
concrete manufactured sand fine aggregate replacement ratio miz design
Sheng-Dong He Li-Xin Liu Li-Li Wang
School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, P.R. China Construction and Dev School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, P.R.China
国际会议
广州
英文
164-170
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）