含粗骨料超高性能混凝土的试验研究  

Experimental study on ultra-high-performance concrete with coarse aggregate

作　　者：杨凤玲[1] 嵇银行 刘伟 张长森[1] 房大翼 YANG Fengling;JI Yinhang;LIU Wei;ZHANG Changsen;FANG Dayi(School of Materials Science and Engineering,Yancheng Institute of Technology,Yancheng 224051,China;Jiangsu Sobute New Materials Co.,Ltd.,Nanjing 211103,China)

机构地区：[1]盐城工学院材料科学与工程学院,江苏盐城224051 [2]江苏苏博特新材料股份有限公司,江苏南京211103

出　　处：《混凝土》2018年第12期110-113,共4页Concrete

基　　金：国家自然科学基金(51672236);江苏省产学研前瞻性联合研究项目(BY2016065-35);江苏高校品牌专业建设工程资助项目(PPZY2015A025)

摘　　要：通过在超高性能混凝土中以等体积取代胶凝材料的方式掺入粗骨料,研究粗骨料在不同掺量和最大粒径条件下对超高性能混凝土工作性能和力学性能(尤其是单轴拉伸性能)的影响,实现对掺粗骨料超高性能混凝土韧性的提高。研究结果表明:粗骨料最大粒径为10 mm、掺量为20%时,可得到工作性能和力学性能较为理想的超高性能混凝土,其抗拉韧性达到最优。Using the same volume percentages of coarse aggregate to replace cementitious materials for ultra-high-performance concrete,the working performance and mechanical properties(especially uniaxial tensile properties)of the ultra-high-performance concrete specimens were tested,and the influence of the mixing amount and the maximum size of coarse aggregate on the performance of the concrete were studied,and the toughness of the concrete with coarse aggregate was improved.The experimental results show that,adding the coarse aggregate with the mixing amount of 20% and the maximum size of 10 mm,the ultra-high-performance concrete can get suitable working performance and mechanical properties,and its tensile toughness is optimal.

关 键 词：超高性能混凝土 粗骨料 工作性能 力学性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]