冬季现浇混凝土地基基础施工技术探究  

Exploration of Construction Technology for Cast-in-Place Concrete Foundations in Winter

作　　者：相仁凤 王伟 XIANG Renfeng;WANG Wei(Weihai Lineng Electric Power and Thermal Survey and Design Co.,Ltd.,Yantai,Shandong Province,264200 China;Yantai Dongyuan Power Transmission and Transformation Engineering Co.,Ltd.,Yantai,Shandong Province,264000 China)

机构地区：[1]威海力能电力热力勘测设计有限公司,山东烟台264200 [2]烟台东源送变电工程有限责任公司,山东烟台264000

出　　处：《科技资讯》2024年第9期130-132,共3页Science & Technology Information

摘　　要：新浇筑的混凝土在低温状态下,其中的拌和水会达到冰冻状态,其体积会比原来增大10%左右,而水泥也无法再进行水化作用。而在温度恢复以后,受过冰冻的水泥浆中出现孔隙的概率,比在常规条件下凝固的水泥有了明显增加,导致水泥的抗压性能、抗渗性能以及黏合性能都有不同程度的下降,其整体强度下降,耐久性也会随之减退。从冬季现浇混凝土的施工特点出发,分析当前相关工作中存在的各项问题,并提出一些参考建议,希望能为相关技术升级和行业发展提供一些理论支持。In a low temperature,the mixed water in newly-poured concrete will reach a frozen state,its volume will increase by about 10% compared to the original volume,and cement can no longer be hydrated.After the temperature is recovered,the probability of porosity in the frozen cement slurry increases significantly compared to cement solidified under conventional conditions,leading to the varying degrees of decline in the compressive,impermeable and adhesive performance of cement,its overall strength decreases and its durability also decreases.This article starts from the construction characteristics of cast-in-place concrete in winter,analyzes the various problems existing in current related work,and proposes some reference suggestions,hoping to provide some theoretical support for the upgrading of related technologies and the development of the industry.

关 键 词：现浇混凝土 地基基础 施工技术 热材消耗 

分 类 号：TU753[建筑科学—建筑技术科学]