长江科学院院报 ›› 2009, Vol. 26 ›› Issue (2): 45-47.

• 水工结构与材料 • 上一篇    下一篇

不同骨料的高强混凝土早期徐变性能研究

 李凤兰, 罗俊礼, 赵顺波   

  • 出版日期:2009-02-01 发布日期:2012-07-02

Early Stage Creep of Highstrength Concrete of Different Aggregates

 LI  Feng-Lan, LUO  Jun-Li, ZHAO  Shun-Bo-   

  • Online:2009-02-01 Published:2012-07-02

摘要: 以两种细骨料(机制砂、天然砂)与两种粗骨料(石灰岩碎石、花岗岩碎石)分别组合配置的4组高强混凝土为研究对象,进行了混凝土徐变性能对比试验研究。分析了细骨料和粗骨料对高强混凝土徐变性能的影响规律,提出了徐变系数的预测计算公式。

Abstract: Based on the comparatively experimental study on four groups of high-strength concretes made of different combinations of two fine aggregates (machine-made and natural sands) and two coarse aggregates (crushed limestone and granite), the effects of the fine and coarse aggregates on the creep of high-strength concrete are analyzed. The formula is proposed for predicting the creep-coefficients of high-strength concrete of different aggregates.