常规品水洗砂大流态混凝土配合比试验及工程应用研究  

Research on Mix Proportion Test and Engineering Application of Conventional Water-washed Sand High-fluidity Concrete

作　　者：邓斌慧 王俊 邱文会 DENG Binhui;WANG Jun;QIU Wenhui(School of Civil Engineering and Transportation,North China of Water Resources and Electric Power,Zhengzhou 450000,China;School of Civil Engineering,Xuchang University,Xuchang 461000,China;Henan Jinnuo Concrete Co.,Ltd.,Xuchang 4610000,China)

机构地区：[1]华北水利水电大学土木与交通学院,河南郑州450000 [2]许昌学院土木工程学院,河南许昌461000 [3]河南金诺混凝土有限公司,河南许昌461000

出　　处：《许昌学院学报》2025年第2期94-99,共6页Journal of Xuchang University

基　　金：河南省科技攻关项目(252102321178);河南省高等学校重点项目(20A560020);许昌市校地合作科技专项(XDHZ2021-009)。

摘　　要：大流态混凝土可在一定程度上解决复杂工程或工程特殊部位混凝土浇筑困难的问题.文中采用正交试验法,获取了采用“两砂一粉”调整细骨料级配的常规品水洗砂大流态C45混凝土的最优配合比.对该配合比混凝土开展了立方体抗压、劈裂抗拉、抗折性能试验,结果表明常规品水洗砂大流态混凝土力学性能符合规范要求,并分析了该配合比混凝土的工作机理.High-fluidity concrete can,to some extent,address the challenges of concrete pouring in complex engineering structures or specific construction areas.In this study,the orthogonal experimental method was employed to determine the optimal mix proportion for C45 high-fluidity concrete using conventional water-washed sand,with fine aggregate gradation adjusted by the“two sands and one powder”method.Tests on cube compressive strength,splitting tensile strength,and flexural strength were conducted for the optimized mix proportion.The results demonstrate that the mechanical properties of the conventional water-washed sand high-fluidity concrete meet the requirements of relevant standards,and the working mechanism of this mix proportion was analyzed.

关 键 词：常规品水洗砂 两砂一粉 大流态混凝土 配合比试验 力学性能 

分 类 号：TU528[建筑科学—建筑技术科学]