单矿物粘土对水泥砂浆性能及水泥水化的影响  

Effect of Single Mineral Clay on the Property of Cement Motar and the Hydration of Cement

作　　者：王智[1] 王林龙[2] 王应[1,3] 考友哲[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044 [2]重庆大学材料科学与工程学院,重庆400045 [3]重庆市建设工程质量监督总站检测中心,重庆400051

出　　处：《硅酸盐通报》2014年第12期3067-3074,共8页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金资助项目(51272295)

摘　　要：研究了高岭土、伊利土和蒙脱土三种单矿物粘土对砂浆工作性能和强度的影响,并从水泥水化热和水化产物角度研究了三种单矿物粘土对水泥水化的影响。结果表明:蒙脱土对砂浆扩展度和强度影响最为显著,高岭土和伊利土在一定掺量内几乎没有影响;单矿物粘土对掺聚羧酸减水剂砂浆相关性能的影响较未掺聚羧酸减水剂砂浆更加明显;单矿物粘土不会改变水泥水化产物的种类,但是影响水泥水化放热速率和最大放热峰的出峰时间,即水泥水化进程。The influence of kaolin,illite and montmorillonite on the workability and strength of the mortars specimens was investigated,and the heat and products of hydration were measured to study how each kind of single clay affects cement hydration. The results suggest that montmorillonite has the most significant effects on the sump flow and the strength of mortar specimens,while kaolin and illite have little influence within a certain dosage. The polycarboxylate superplasticizer makes the influence of single clay on the properties of motars more serious. There are influences of the single clay on evolution of hydration,but the hydration products keep the same as that without superplasticizer.

关 键 词：单矿物粘土 工作性能 强度 水化热 水化产物 

分 类 号：TU525[建筑科学—建筑技术科学]