蒸养粉煤灰混凝土力学性能试验研究  

Experimental study on mechnical properties of steam curing fly ash concrete

作　　者：贺智敏[1] 谢友均[1] 刘宝举[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《混凝土》2003年第8期25-27,48,共4页Concrete

摘　　要：　本文主要采用对比试验研究的方法,研究了粉煤灰掺量、水胶比对蒸养混凝土抗压强度、劈拉强度、抗折强度的影响。试验结果表明:在低水胶比时,掺量为20%粉煤灰的蒸养混凝土28天抗压、劈拉强度可与基准蒸养混凝土的相近,且比基准标养混凝土的高,后期强度发展优于基准蒸养、标养混凝土。掺入粉煤灰后,蒸养混凝土的抗折强度有较大幅度提高。水胶比对蒸养粉煤灰混凝土的影响规律与普通混凝土相似。This paper mainly studied the influence of the amount of fly ash and water to binder ratio on the compressive strength,the tensilesplitting strength and the flexural strength of the steam curing concrete.The experimental results indicated that when incorporating 20 percent fly ash,the compressive strength and tensilesplitting strength of the steam curing concrete are almost the same as the control steam curing concrete and higher than the control standard curing concrete,and the later strength has higher increment degree.The addition of fly ash had improved the flexural strength of the steam curing concrete.The influence of water to binder ratio on the steam curing concrete with fly ash was similar as normal concrete.

关 键 词：粉煤灰 蒸养混凝土 力学性能 

分 类 号：TU528.2[建筑科学—建筑技术科学]