不同骨料的高强混凝土早期徐变性能研究  

Early Stage Creep of High-strength Concrete of Different Aggregates

作　　者：李凤兰[1] 罗俊礼[1] 赵顺波[1] 

机构地区：[1]华北水利水电学院土木与交通学院,郑州450011

出　　处：《长江科学院院报》2009年第2期45-47,共3页Journal of Changjiang River Scientific Research Institute

基　　金：河南省高等学校创新人才培养工程资助项目(豫教高[2004]294号)

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。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.

关 键 词：高强混凝土 徐变 骨料 早龄期 

分 类 号：TU528.31[建筑科学—建筑技术科学]