摘要
对常用的花岗岩、石灰岩2种石料按不同颗粒级配进行配合比试验,研究骨料强度与"最大粒径"大小对高强混凝土强度与生产成本的影响。研究结果显示,骨料品质对高强混凝土强度影响程度较大,采用连续级配的最大粒径可以扩大到40mm,级配粒径相同时传统水灰比理论仍然有效。
Through taking experimental with common granite and limestone by two particle size distribution,studying the effect of aggregate strength and＂maximum grain size＂ to the strength and production cost of high-strength concrete. Research results showed that aggregate quality has bigger influence to the strength of high-strength concrete. The maximum grain size can extend to 40 nnn with continuous grading. Traditional water-cement ratio theory is still effective when particle size distribution is same.
出处
《新型建筑材料》
北大核心
2009年第8期12-14,共3页
New Building Materials
关键词
高强混凝土
骨料强度
最大粒径
颗粒级配
水灰比
high strength concrete
aggregate strength
maximum aggregate size
particle size distribution
water-cement ratio
