橡胶混凝土抗冻性能与抗氯离子渗透性能的试验  

Experimental Study on Frost Resistance and Chloride Penetration Resistance of Rubber Concrete

作　　者：杨春峰[1,2] 储超群 张坤 YANG Chunfeng;CHU Chaoqun;ZHANG Kun(School of Architecture and Civil Engineering,Shenyang University,Shenyang 110044,China;Key Laboratory of Geoenvironmental Engineering,Shenyang University,Shenyang 110044,China;The 10 th District,Henan Pingyuan Prison,Xinxiang 453000,China)

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044 [2]沈阳大学辽宁省环境岩土工程重点实验室,辽宁沈阳110044 [3]河南省平原监狱十监区,河南新乡453000

出　　处：《沈阳大学学报（自然科学版）》2021年第5期418-422,共5页Journal of Shenyang University：Natural Science

基　　金：辽宁省兴辽英才计划课题(XLYC1802018);国家科技支撑计划资助项目(2013BAJ15B03).

摘　　要：采用橡胶颗粒等体积取代砂的方式制备橡胶混凝土,以混凝土的强度等级(取C50、C60、C70三种)和橡胶颗粒取代砂的体积分数(取4%、8%、12%、16%四种)为主要变量,通过试验,探索了主要变量变化对橡胶混凝土的抗冻性能和抗氯离子渗透性能的影响,并对影响机理进行了分析.结果表明:对于强度等级为C50的混凝土,橡胶颗粒的掺入会提高混凝土的抗冻性能,而对于强度等级为C60、C70的混凝土,橡胶颗粒的掺入会导致混凝土抗冻性能下降;橡胶颗粒掺入对混凝土的抗氯离子渗透性能均有积极的影响.Rubber concrete was prepared by replacing sand with rubber particles in equal volume.The main variables were the strength grade of concrete(C50,C60,C70)and the volume fraction of sand replaced by rubber particles(4%,8%,12%,16%).Through experiments,the effects of changes in main variables on the frost resistance and chloride ion penetration resistance of rubber concrete were explored,and the influence mechanism was analyzed.The results show that for concrete with strength grade C50,the incorporation of rubber particles will improve the frost resistance of concrete,while for concrete with strength grades C60 and C70,the incorporation of rubber particles will reduce the frost resistance of concrete;the incorporation of rubber particles has a positive effect on the resistance to chloride ion penetration of concrete.

关 键 词：橡胶 混凝土 抗冻性能 抗氯离子渗透性能 影响机理 

分 类 号：TU528[建筑科学—建筑技术科学]