摘要
通过选用满足标准要求的大体积混凝土配合比,进行绝热升温试验。根据试验结果,选用低水化热配比。结合专家论证意见,制定符合要求的浇筑计划和布置输送设备的位置,以及满足标准的浇筑方法来确保混凝土整体浇筑质量。对浇筑区域在水平和垂直方向布设温度传感器,实时监测各测区大体积混凝土温度发展情况,并通过预先设定的阈值来启动和停止预先布设的冷凝水循环系统,以及采取适当的养护措施,确保混凝土的温度发展符合规范要求。
Adiabatic heating experiments were carried out by selecting the mass concrete mix ratio that met the standard requirements.According to the experimental results,a low hydration heat ratio was selected.Combined with expert opinion,formulate a pouring plan that meets the requirements,arrange the location of conveying equipment,and meet the standard pouring method to ensure the overall pouring quality of concrete.Install temperature sensors in the horizontal and vertical directions in the pouring area,monitor the temperature development of mass concrete in each measurement area in real time,start and stop the pre-laid condensate water circulation system through the preset threshold,and take appropriate maintenance measures to ensure The temperature development of the concrete meets the specification requirements.
作者
郭文博
郑小丰
邹辉
李尹
刘畅
杨海江
许云祥
马荣
GUO Wenbo;ZHENG Xiaofeng;ZOU Hui;LI Yin;LIU Chang;YANG Haijiang;XU Yunxiang;MA Rong(China Construction Seventh Engineering Division Co.,Ltd.,Zhengzhou 450004,China)
出处
《建筑结构》
北大核心
2023年第S01期2271-2274,共4页
Building Structure
基金
中建七局2020年度科研课题项目(CSCEC7b-2020-Z-23)
关键词
大体积混凝土
配合比
绝热升温
温度控制
mass concrete
mix ratio
adiabatic heating
temperature control
