尾矿砂对水泥胶砂性能影响的试验

Experimental Study on Performance of Cement Mortar Containing Tailing Sand

将尾矿砂以不同比例代替天然砂,研究其对水泥胶砂性能的影响。试验结果表明,尾矿砂的掺入能够满足水泥胶砂流动度和强度的要求,与天然砂相比,掺加尾矿砂可以提高水泥胶砂的流动度,并使水泥胶砂3d抗折强度和抗压强度略有降低,但可以提高水泥胶砂28d抗折强度和抗压强度。

In order to study the influence that tailing sand have on the cement mortar, the nature sand was replaced by tailing sand in varying proportions. Test results indicate that the fluidity and the strength of cement mortar can be satisfied when mixing tailing sand. Compared with the nature sand, the fluidity of cement mortar can be improved due to the tailing sand, also the flexural strength and compressive strength of 3d will he reduced, however the 28d can be improved indeed.