聚羧酸系减水剂对活性粉末混凝土性能的影响  

Effect of polycarboxylate superplasticizer content on properties of reactive powder concrete

作　　者：黄春霞[1] HUANG Chunxia(Shanxi Polytechnic Institute,Xianyang 712000,Shaanxi China)

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000

出　　处：《粘接》2022年第2期116-119,共4页Adhesion

基　　金：陕西省教育厅2019年度专项科研计划项目(项目编号:19JK0076)。

摘　　要：研究聚羧酸系减水剂掺量对活性粉末混凝土性能的影响。试验采用单因素对照试验的方法进行活性粉末混凝土(RPC)配合比设计,测定其坍落度、流动度等工作性能,且将其在标准养护条件下分别养护7、28 d,测定其抗压强度。结果发现:当水胶比为0.25,聚羧酸系减水剂的掺量为1.14%时,活性粉末混凝土的工作性能与力学性能最佳。In order to study the influence of polycarboxylate superplasticizer dosage on the performance of reactive powder concrete(RPC),the single factor control test method was used to design the mix proportion of RPC.After measuring its slump,fluidity and other working performance,the RPC was cured for 7 d and 28 d respectively under standard curing conditions,and its compressive strength was measured.The results show that when the water binder ratio was 0.25 and the content of polycarboxylate superplasticizer was 1.14%,the workability and mechanical properties of reactive powder concrete were the best.

关 键 词：聚羧酸系减水剂 活性粉末混凝土 水胶比 养护时间 抗拉强度 

分 类 号：TU528.31[建筑科学—建筑技术科学]