摘要
使用普通砂、石集料、525#普通硅酸盐水泥和高效减水剂配制出70MPa以上的高强混凝土,通过掺加矿粉、钢纤维及矿粉与钢纤维双掺技术,使高强混凝土压折比下降到普通混凝土水平。
High-strength concrete, which is higher than 70MPa, is prapared with the ordinary fine aggregate, coarse aggregate, 525 ordinary Portland cement and superplasticizer. In order to reduce the brittle-ness of high - strenghth concrete, the pulverized mineral, steel fibre and pulverized mineral plusing steel fibre are added to high - strength concrete,and the ratio of compressive strength to bending strength for high -strength concrete is limited to the range of normal strength concrete. Finally, the acting mechanism of pulverized mineral on the high -strength is also analyzed by means of XRD, SEM, microhard-
ness.
出处
《低温建筑技术》
北大核心
1997年第2期8-11,18,共5页
Low Temperature Architecture Technology
关键词
高强混凝土
高效减水剂
压折比
矿粉
钢纤维
High-strength concrete, superplasticizer, pulverized mineral, steel fibre
