补偿收缩混凝土在核工程中的应用  

Application of shrinkage-compensating concrete in nuclear engineering

作　　者：王东旭 李晓昆 纪宪坤 王海龙 WANG Dongxu;LI Xiaokun;JI Xiankun;WANG Hailong(China Nuclear Power Engineering Co.Ltd.,Beijing 100840,China;Wuhan Sanyuan Special Building Materials Co.Ltd.,Wuhan 400083,China;State Key Laboratory of Green Building Materials,China Building Materials Academy,Beijing 100024,China)

机构地区：[1]中国核电工程有限公司,北京100840 [2]武汉三源特种建材有限责任公司,湖北武汉400083 [3]中国建筑材料科学研究总院,绿色建材国家重点实验室,北京100024

出　　处：《新型建筑材料》2025年第1期118-121,128,共5页New Building Materials

摘　　要：核工程项目中,大体积混凝土和超长结构混凝土的裂缝控制至关重要,补偿收缩混凝土作为一种有效的裂缝控制技术,通过设计分析、技术方案论证和试验验证后方可在核工程中得到应用。研究分析了混凝土裂缝的成因,针对核工程进行补偿收缩混凝土设计,研究混凝土用膨胀剂,选择钙镁复合膨胀剂以充分发挥不同膨胀剂优势,并对施工质量要求等方面进行分析,提出了在核工程项目中应用补偿收缩混凝土的注意事项,旨在提高核工程质量。In nuclear engineering projects,crack control in large-volume concrete and ultra-long structural concrete is crucial.Shrinkage-compensating concrete,as an effective crack control technology,can be applied in nuclear engineering only after design analysis,technical program demonstration,and test verification.The study analyzes the causes of concrete cracks,designs shrinkage-compensating concrete specifically for nuclear engineering,researches concrete expansion agents,selects calcium-magnesium composite expansion agents to fully leverage the advantages of different expansion agents,and analyzes construction quality requirements.It proposes precautions for applying shrinkage-compensating concrete in nuclear engineering projects,aiming to improve the quality of nuclear engineering.

关 键 词：大体积混凝土 补偿收缩混凝土 抗裂性能 膨胀剂 

分 类 号：TU528[建筑科学—建筑技术科学]