摘要
本文通过高钙粉煤灰、低钙磨细粉煤灰和原状灰的不同掺量试验,对粉煤灰混凝土的流动性及早期和后期强度进行了研究,对于粉煤灰性质与混凝土流动性和强度之间的关系进行了初步分析和讨论。研究表明,粉煤灰的比重、需水量比和细度等物理性质对混凝土流动性有较大的影响;高钙粉煤灰混凝土比低钙粉煤灰混凝土的早期强度为高、有的高钙粉煤灰能提高混凝土早期强度。
In this paper, from the test of various content of high-calcium flyash, low-calcium ground fly-ash and raw flyash, workability, early and later strenghth of flyash concrete are researched. Therelation of flyash properties to workability and strength of concrete is primarily analysed anddiscussed. Research results show that physical properties of flyash, such as specific gravity, waterrequirement ratio and fineness, have much influence on the workability of concrete, early strength ofhigh calcium flyash concrete is higher than that of low-calcium flyash concrete, some kind ofhigh calcium flyash can increase the early strength of concrete.
出处
《工业建筑》
CSCD
北大核心
1991年第4期2-6,15,共6页
Industrial Construction
