活性粉末混凝土的制备工艺试验研究  

Study on the preparation technology of reactive powder concrete

作　　者：薛霖 薛文[1] 卢凯 XUE Lin;XUE Wen;LU Kai Zhejiang(University of Science and Technology,Hangzhou 310023,China)

机构地区：[1]浙江科技学院,浙江杭州310023

出　　处：《新型建筑材料》2019年第2期32-35,44,共5页New Building Materials

基　　金：国家自然科学基金项目(51608484);浙江省自然科学基金项目(LQ16E080005);浙江科技学院研究生创新基金项目(2017YJSKC015)

摘　　要：对活性粉末混凝土的制备工艺进行试验研究。试验结果表明:消泡剂可有效降低RPC中约50%的气孔数量;采用木模浇筑、分层振捣可进一步降低气孔率;气孔的存在对RPC强度的影响甚微;高温养护可使RPC的抗压强度提高约37%,对于RPC混凝土,标准养护条件不可等效替代高温热水养护。The preparation technology of reactive powder concrete was studied. The test results show that:defoamer can effectively reduce the number of stomata in RPC about 50%,wood mold placement and layered vibration can further reduce porosity,the existence of stomata has little effect on RPC strength,high temperature curing can effectively improve the compressive strength of RPC by 37%. For RPC concrete,standard curing conditions cannot be used to replace high temperature hot water curing.

关 键 词：活性粉末混凝土 制备工艺 模具选择 养护条件 气孔率 抗压强度 

分 类 号：TU528.31[建筑科学—建筑技术科学]