超高性能混凝土泵送施工可行性研究  

Feasibility study on pumping construction of ultra-high performance concrete

作　　者：成良民 李磊 柯伟席 刘子源 陈林 CHENG Liangmin;LI Lei;KE Weixi;LIU Ziyuan;CHEN Lin(Wuhan Sanyuan Special Building Materials Co.,Ltd.,Wuhan 430080,China;Wuhan Ujion Building Materials Technology Co.,Ltd.,Wuhan 430080,China)

机构地区：[1]武汉三源特种建材责任有限公司,湖北武汉430080 [2]武汉源锦建材科技有限公司,湖北武汉430080

出　　处：《四川建材》2024年第5期76-78,共3页Sichuan Building Materials

基　　金：住房和城乡建设部研究开发项目:轻质超高性能混凝土在装配式建筑结构中的应用技术研究(K20210996)。

摘　　要：为解决超高性能混凝土(Ultra-high performance concrete, UHPC)施工过于依赖机械且施工难度大的问题,首先从理论层次探讨了超高性能混凝土的可泵性。总结了超高性能混凝土泵送所需基础条件,并验证所提出的基础条件。再通过具体实验进行理论验证,并描述了超高性能混凝土泵送前后的性能差异,验证其可泵性。在泵送条件下,扩展度及力学性能无较大变化,处于稳定波动状态,可以满足泵送要求。In order to solve the problem that the construction of Ultra-high performance concrete(UHPC)istoo dependenton machinery and difficult to construct,this paper first discusses the pumpability of UHPC from the theoretical level.The basic condi-tions for pumping ultra-high performance concrete are summa-rized,and the proposed basic conditions are verified.Then,the theoretical verification is carried out through specific experi-ments,and the performance difference before and after pumping of ultra-high performance concrete is described to verify its pumpability.Under the pumping condition,the expansion degree and mechanical properties have no significant changes,and they are in a stable fluctuating state,which can meet the pumping re-quirements.

关 键 词：超高性能混凝土 可泵性 泵送 力学性能 

分 类 号：TU755[建筑科学—建筑技术科学]