HBC低热高抗裂大坝混凝土的开发研究  

Study on low-exothermic and high crack-resisting dam concrete with HBC

作　　者：李金玉[1] 彭小平[1] 隋同波[2] 李文伟 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]中国建筑材料科学研究院,北京100024 [3]中国长江三峡建设总公司,湖北宜昌443100

出　　处：《水力发电》2003年第3期58-62,共5页Water Power

基　　金：十五"国家科技攻关项目(2001BA307B02-03)

摘　　要：在"九五"国家科技攻关项目"高贝利特(HBC)新型胶凝材料研究"的基础上,进行了HBC低热高抗裂大坝混凝土的开发研究,通过与三峡二期大坝中热水泥(MHC)混凝土的平行对比试验,初步论证了HBC大坝混凝土具有良好的工作性、力学性能和耐久性能。HBC大坝混凝土在相同配合比下的绝热温升将降低3～5℃;抗裂性分析表明,HBC大坝混凝土具有良好的抗裂能力,是一种可以在水工大体积混凝土工程中推广应用的新型低热高抗裂大坝混凝土。Low exothermic and high crackresisting dam concrete with HBC has been studied on the basis of the study on the new HBC materials, one of the key technology research subjects during the Ninth FiveYear Plan period. It is shown that dam concrete with HBC has better workability, durability and mechanic properties than dam concrete with MHC, which is concluded by testing and comparing with that in the second period of the Three Gorges Project. Under the condition of the same mix proportion, the adiabatic temperature of dam concrete with HBC will decrease 3 or 5 0C and have preferable crackresisting property. It is verified that dam concrete with HBC can extended to be applied in hydraulic mass concrete as a new low exothermic and high crackresisting dam concrete.

关 键 词：低热混凝土 高抗裂混凝土 高贝利特水泥 大坝混凝土 HBC 

分 类 号：TV421.1[水利工程—水工结构工程] TV41