摘要
通过结合工程实际,配制不同强度机制砂混凝土,利用固定水灰比、固定坍落度、高水灰比和大坍落度等手段全面地探讨不同强度混凝土的最优砂率分布;在单位用水量相同,最优砂率时强度与水灰比相关性较好。
Combining with the engineering practice, the manufactured sand cement concrete with different strength were prepared. By means of fixed water-cement ratio, stationary slump, high water-cement ratio and high slump, the optimum sand ratio distribution of concrete with different strength was discussed comprehensively. With the same unit water consumption and the optimum sand ratio, the correlation between strength and water cement ratio was better.
作者
董瑞
薛长武
贾庆荣
沈卫国
DONG Rui;XUE Chang-wu;JIA Qing-rong;SHEN Wei-guo(Guangdong Nanyue Transportation Investment&Construction Co.,Ltd.,Guangzhou,Guangdong 510101,China;National Key Laboratory of Silicate Materials Science and Engineering of Wuhan University of Technology,Wuhan,Hubei 430070,China)
出处
《山西交通科技》
2020年第3期51-54,58,共5页
Shanxi Science & Technology of Transportation
关键词
机制砂
最优砂率
强度
水灰比
manufactured sand
optimum sand ratio
strength
water-cement ratio
