摘要
为研究石灰石粉和粉煤灰对干燥状态下砂浆性能的影响。设计了两组砂浆配合比进行对比试验。试验结果表明,掺加石灰石粉和粉煤灰都有减小砂浆干缩的作用,而且效果相当;石灰石粉掺量在30%以内时,长期干燥对砂浆的抗压强度和抗折强度影响较小,而且再次水养后强度恢复较高。
We designed two series of mix proportions of mortar for comparison experiment in order to study the influence of limestone powder and fly ash on the properties of mortar under dry condition. The test results showed that limestone powder and fly ash can reduce the drying shrinkage of mortar with good effectiveness. If the content of limestone powder is less than 30%, long time drying will bring a little effect on the compressive strength and flexural strength of mortar, and its strength will resume higher when curing in water again.
出处
《水力发电》
北大核心
2009年第6期41-43,共3页
Water Power
基金
中国博士后科学基金一等资助项目(NO.20060400066)
关键词
石灰石粉
粉煤灰
砂浆
干燥
性能
limestone powder
fly ash
mortar
drying
properties
