风水联合预冷粗骨料在曼点水库大体积混凝土温度控制中的应用  

Application of Wind Water Combined Precooling Coarse Aggregate in Temperature Control of Mass Concrete in Mandian Reservoir

作　　者：苟勤章 朱伟 王耀华 陈利超 GOU Qinzhang;ZHU Wei;WANG Yaohua;CHEN Lichao(Yunnan Institute of Water Resources and Hydropower Survey,Kunming,Yunnan 650000,China;Yunnan No.1 Hydropower Construction Co.,Ltd.,Kunming,Yunnan 650217,China)

机构地区：[1]云南省水利水电设计研究院,云南昆明650000 [2]云南建投第一水利水电工程建设有限公司,云南昆明650217

出　　处：《施工技术》2020年第S01期320-324,共5页Construction Technology

摘　　要：风水联合预冷粗骨料即采用风冷法和喷淋冷水预冷粗骨料。采用冷却水喷淋粗骨料,并通冷却风加速水分蒸发,可降低粗骨料入仓温度,符合混凝土浇筑温度控制的规定,其目的在于降低混凝土入仓前温度,降低混凝土内部温度控制措施的难度,降低混凝土发生温度裂缝的概率。Combination of wind and water precooling coarse aggregate is air cooling method and spray cold water precooling coarse aggregate.Cooling water is used to spray coarse aggregate and cooling air is used to accelerate water evaporation,which can reduce the temperature of coarse aggregate and meet the requirements of concrete pouring temperature control.Its purpose is to reduce the temperature of concrete before warehousing,reduce the difficulty of concrete internal temperature control measures,and reduce the probability of concrete temperature cracks.

关 键 词：大体积混凝土 风冷法 喷淋冷水 粗骨料 浇筑温度 

分 类 号：TV62[水利工程—水利水电工程] TV544.91