废旧橡胶水泥砂浆力学性能研究及改善  

Research and Improving of the Waste Rubber Particles on the Mechanical Properties of Cement Mortar

作　　者：师广岭 张海波[1] 尚海涛[1] 兰园钢 常青波 苏晓丽[1] 

机构地区：[1]河南理工大学材料科学与工程学院,焦作454000

出　　处：《硅酸盐通报》2015年第8期2419-2423,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金资助项目(U1204513);国家级大学生创新训练计划项目(201310460049);河南省高等学校矿业工程材料重点学科开放实验室开放课题(MEM14-16);河南理工大学博士基金(B2014-011)

摘　　要：废旧橡胶粉与砂子用环氧粘接剂粘接后制成的新骨料掺入到水泥砂浆中,以改善橡胶水泥砂浆中橡胶粉与水泥基体界面结合薄弱的问题。使用未处理的橡胶粉和处理后的新骨料对水泥砂浆中的砂子进行不同的体积取代。结果表明:随着水泥砂浆中橡胶掺量的增加,两组新拌砂浆的流动度和28d抗折、抗压强度均降低,但韧性指标有所提高;而在相同橡胶掺量下,含新骨料的水泥砂浆的抗折、抗压强度较未处理组的降低幅度减小,韧性指标的提高幅度增大。Mix a new aggregate, which was made of waste rubber powder and sands spliced by epoxy adhesive, into cement mortar to improve the combination of the rubber powder and the cement matrix interface in rubber cement mortar. Replace the new aggregate in cement mortar. Results show sands with the different volume of rubber powder and the that the mortar fluidity , the 28 d flexural strength and compression strength of the two new mixed groups are reduced with the increase of rubber powder content in the cement mortar, but the toughness index is increased. With the same content of rubber powder, the reduction of the flexural strength and the compression strength of cement mortar with new aggregate is lower than the cement mortar with rubber powder, and the improvement of toughness index is higher.

关 键 词：橡胶粉 水泥砂浆 抗折强度 抗压强度 韧性指标 

分 类 号：TQ172[化学工程—水泥工业]