矿物掺合料对硫铝酸盐水泥基灌浆料性能的影响.pdfVIP

学兔兔 2014年第 12期(总第 302期 ) 混 凝 土 原材料及辅助物料 Number 12 in 2014(Total No．302) Concrete MATERIAL AND ADMINICLE doi：10．3969~．is,；n．1002—3550．2014．12．024 矿物掺合料对硫铝酸盐水泥基灌浆料性能的影响 戴 民。赵 慧 (沈阳建筑大学 材料科学与工程学院，辽宁 沈阳 1 10168) 摘 要： 为研究矿物掺合料对硫铝酸盐水泥基灌浆料力学性能及流动性能的影响，分别以硅灰、双飞粉、轻质碳酸钙为掺合料制 备了硫铝酸盐水泥基灌浆料。在不同水胶比条件下，测试了灌浆料的流动度及不同龄期的抗折、抗压强度。试验结果表明：加入一定 量硅灰可以提高灌浆料各龄期强度，但随着硅灰掺量增大，灌浆料流动度降低；加入一定量双飞粉对灌浆料流动度及各龄期强度均 有负面影响；加入一定量轻质碳酸钙对灌浆料不同龄期抗压强度有所提高，对流动度及抗折强度没有明显影响。 关键词： 硫铝酸盐水泥；灌浆料；矿物掺合料；流动度；强度 中图分类号：TU528．041 文献标志码：A 文章编号： 1002—3550(2014)12—0091—04 Effe~ of mineral admixtures on performance of grout material based on sulphate aluminium cement DAIMin，ZHA0Hui (School ofMaterials Science andEngineering，Shenyang JianzhuUniversity，Shenyang 110168，China) Abstract： In order to study mineral admixtures’impact on the mechanical and flow properties of sulfur aluminate cement—based grouting material，the author produces sulfur aluminate cement—based grouting material samples by useing silica fume，Flying powder and light cal— cium carbonate as mineral adm ixtures．The author also tests and ana1) sises fluidity，strength index in different water cement ratio．The fl— lowing are lhe results that we can conclude：(1)adding a certain amount of silica fume Can improve the strength of grouting material in each stage，while the grout fuidity will reduce when the dosage of silica fume increases；(2)adding a certain amount of flying powder has negative effi：cts on the grout fluidity and the strength in each stage；(3