大掺量复合掺合料混凝土性能研究  

STUDY ON CONCRETE WITH HIGH VOLUME COMPOUND MINERAL ADMIXTURE

作　　者：冷发光[1] 田冠飞[1] 丁威[1] 张仁瑜[1] 李章建 李昕成 纪宪坤[1] 

机构地区：[1]中国建筑科学研究院建筑材料研究所,北京100063 [2]云南建工集团混凝土有限公司,昆明650051

出　　处：《低温建筑技术》2008年第4期1-4,共4页Low Temperature Architecture Technology

基　　金：科技部科研院所技术开发研究专项(2003EG131152);云南省省院省校科技合作计划项目(2004YX31)

摘　　要：论文研究了45%掺量复合掺合料混凝土的力学性能和耐久性能,并与25%掺量复合掺合料混凝土和大掺量粉煤灰混凝土进行了对比。研究结果表明,大掺量复合掺合料混凝土力学性能略低于25%掺量复合掺合料混凝土,但明显优于大掺量粉煤灰混凝土;收缩与早期开裂性能与25%掺量复合掺合料混凝土相当;大掺量复合掺合料混凝土抗冻融、抗碳化和抗氯离子渗透性能良好,能够满足混凝土耐久性要求。The mechanical properties and durability of concrete containing 45 % compound mineral admixtures were studied. The comparison was also made with concrete with 25 % compound mineral admixture and concrete with high volume fly ash. The results show that the mechanical properties of concrete containing high volume compound admixtures are better than those of fly ash concrete. The shrinkage and early age cracking are equivalent to those of concrete with 25 % compound admixtures. The freezing- thawing resistance, anti - carbonization and chloride - penetration resistance of concrete are excellent to meet the durability requirement.

关 键 词：掺合料 大掺量 混凝土 力学性能 耐久性 

分 类 号：TU528.0[建筑科学—建筑技术科学]