粉煤灰海工自密实高性能混凝土配合比参数的试验研究  

Experimental Research on the Mix Proportion Parameters of Fly Ash High Performance Self-compacting Marine Concrete

作　　者：王成启[1] 张悦然[1] 

机构地区：[1]中交上海三航科学研究院有限公司,200032

出　　处：《混凝土与水泥制品》2011年第8期1-7,共7页China Concrete and Cement Products

摘　　要：为满足海洋环境下混凝土的施工要求,开展了粉煤灰海工自密实高性能混凝土配合比参数的试验研究。试验结果表明,掺入30%～40%粉煤灰、水胶比为0.35～0.37、用水量为170kg/m3的自密实混凝土具有较高的流动性、填充性、间隙通过性和抗离析性,满足自密实混凝土的施工要求,且具有较高的抗压强度和抗氯盐侵蚀性能,满足海洋环境下抗氯盐侵蚀的耐久性要求。To satisfy the marine concrete construction,the mix proportion parameters of fly ash high performance self-compacting marine concrete is experimentally studied.Experimental results show that the fluidity,filling ability,passing ability and segregation resistance of self-compacting concrete with 30%～40% fly ash are better when its water-binder ratio is from 0.35 to 0.37 and its water content is held at 170 kg/m3,which satisfies the demand of marine concrete construction.Moreover,its compressive strength and chloride resistance is higher and it can be used in concrete structure of marine circumstance.

关 键 词：粉煤灰 海工自密实高性能混凝土 流动性 填充性 间隙通过性 抗氯盐侵蚀 

分 类 号：TU528[建筑科学—建筑技术科学]