聚羧酸系减水剂对普通硅酸盐水泥及硫铝酸盐水泥性能的影响研究  

Research on the Effect of Polycarboxylic Acid Water Reducing Agent on the Properties ofOrdinary Portland Cement and Sulphoaluminate Cement

作　　者：葛晟然 王喜刚 GE Shengran;WANG Xigang(School of Resources and Civil Engineering,Liaoning Institute of Science and Technology,Benxi Liaoning 117004,China)

机构地区：[1]辽宁科技学院资源与土木工程学院,辽宁本溪117004

出　　处：《辽宁科技学院学报》2024年第3期6-9,共4页Journal of Liaoning Institute of Science and Technology

基　　金：辽宁省教育厅项目(揭榜挂帅服务地方项目)“固废基碱激发绿色建材应用技术研究”(2023J0919);校博士启动基金“工业固废铁尾矿资源在土木工程中应用的关键技术研究”(2307B24);大学生创新创业项目“聚合物改性水泥砂浆快速修补料的性能研究”(202311430073).

摘　　要：本研究选取普通硅酸盐和硫铝酸盐水泥体系作为研究对象,通过调配聚羧酸减水剂的添加量,系统地研究其对这两种水泥体系施工性能的影响。试验发现,聚羧酸减水剂具有良好的减水性。随着PCE掺量的增加,两种水泥体系的凝结时间增大;两种水泥的流动性随着PCE掺量的增加而增大,PCE掺量分别为0.50%和0.40%时,其减水率达到饱和点;在减水率达到饱和点之前,两种水泥的抗压强度不断增加;聚羧酸减水剂与两种水泥都具有良好的适配性。In this study,the effect of polycarboxylic acid(PCE)water reducing agent on the construction performance of ordinary Portland and sulphoaluminate cement were systematically studied.Different amounts of PCE were added into the cements.It was found that PCE has good water reducing property.With the increase of PCE amount,the setting time of the two cements increases.Also,the flowability of the two cements increase.The water reducing rate for the two cements reaches the saturation point with the PCE amount being 0.50%for ordinary Portland cement and 0.40%for Sulphoaluminate cement.The compressive strength of the two cements increases with the increase of PCE amount before the water reducing rate reaches the saturation point.Therefore,PCE has good compatibility with both cements.

关 键 词：聚羧酸减水剂 普通硅酸盐水泥 硫铝酸盐水泥 减水率 流动度 

分 类 号：U414[交通运输工程—道路与铁道工程]