蒸养混凝土损伤及改善措施研究综述  

Current status on damage of steam curing concrete and its improvement measures

作　　者：金清平[1] 陈祺 刘勇 高永红[1] 张曼 JIN Qingping;CHEN Qi;LIU Yong;GAO Yonghong;ZHANG Man(School of Urban Construction,Wuhan University of Science and Technology,Wuhan 430065,China;Hubei Communications Investment Construction Group Co.,Ltd.,Wuhan 430081,China)

机构地区：[1]武汉科技大学城市建设学院,湖北武汉430065 [2]湖北交投建设集团有限公司,湖北武汉430081

出　　处：《混凝土与水泥制品》2024年第12期51-56,共6页China Concrete and Cement Products

基　　金：湖北省建设厅科研资助项目(厅头[2022]2198号-67);湖北交投建设集团有限公司科研计划项目(RD202206)。

摘　　要：总结了蒸养混凝土的收缩开裂、热损伤、延迟钙矾石形成三种典型损伤类型,分析了损伤作用机理。并提出了改善蒸养混凝土损伤的措施:适量掺入矿物掺合料、优化蒸养制度、合理的后续补充养护、适量掺入内养护材料SAP等。Three typical types of damage,namely shrinkage cracking,thermal damage,and delayed formation of ettringite in steam curing concrete are summarized.The damage mechanism is analyzed,and improvement measures for steam curing concrete damage are proposed.Moderate addition of mineral admixtures,optimization of steam curing system,reasonable subsequent supplementary curing,and appropriate addition of internal curing material SAP can all improve the damage of steam curing concrete to a certain extent.

关 键 词：蒸汽养护 混凝土 收缩开裂 热损伤 钙矾石 矿物掺合料 

分 类 号：TU528.572[建筑科学—建筑技术科学]