珊瑚砂和玻璃微珠制备超高性能混凝土的试验研究  

Experimental Study on Preparation of Ultra-high Performance Concrete with Coral Reef Sand and Glass Microsphere

作　　者：胡尧 陈飞翔[2,3,4] 张国志 陈尚雷[2,3,4] 杨荣辉[2,3,4] HU Yao;CHEN Fei-xiang;ZHANG Guo-zhi;CHEN Shang-lei;YANG Rong-hui(Jiangsu Traffic Engineering Construction Bureau,Nanjing 210000,China;CCCC Second Harbor Engineering Co.,Ltd.,Wuhan 430040,China;Key Laboratory of Large-span Bridge Construction Technology,Wuhan 430040,China;Research and Development Center of Transport Industry of Intelligent Manufacturing Technologies of Transport Infrastructure,Wuhan 430040,China)

机构地区：[1]江苏省交通工程建设局,江苏南京210000 [2]中交第二航务工程局有限公司,湖北武汉430040 [3]长大桥梁建设施工技术交通行业重点实验室,湖北武汉430040 [4]交通运输行业交通基础设施智能制造技术研发中心,湖北武汉430040

出　　处：《混凝土与水泥制品》2021年第2期1-4,共4页China Concrete and Cement Products

基　　金：国家“十三五”科技支撑计划子课题项目(2016YFC0701003-04)。

摘　　要：采用珊瑚砂、空心玻璃微珠两种轻质材料等比例取代石英砂制备了超高性能混凝土(UHPC),并对其表观密度和力学性能进行了研究。试验结果表明:珊瑚砂经过预处理后可以取代石英砂制备UHPC,表观密度降低了10.5%;空心玻璃微珠取代10%的石英砂制备的UHPC表观密度降低了11.5%;将珊瑚砂与空心玻璃微珠复合作为骨料制备出的UHPC表观密度降低了20.2%。Lightweight ultra-high performance concrete was prepared by replacing the quartz sand with two kinds of lightweight materials:coral reef sand and hollow glass microsphere.The test results show that after pretreatment,coral reef sand can replace quartz sand to produce ultra-high performance concrete,and the bulk density is reduced by 10.5%.Hollow glass microspheres replace 10% quartz sand to produce ultra-high performance concrete,and the bulk density is reduced by 11.5%.At the same time,the combination of coral reef sand and hollow glass microsphere as aggregates can also be used to prepare ultra-high performance concrete,and the bulk density is reduced by 20.2%.

关 键 词：超高性能混凝土 珊瑚砂 空心玻璃微珠 表观密度 力学性能 

分 类 号：TU528.2[建筑科学—建筑技术科学]