摘要
Abstract
In this paper,the effects of different content of fly ash,steel fiber and recycled aggregate substitution rate on the compressive strength of recycled concrete blocks were studied.The results show that different fly ash content has a significant negative impact on concrete strength,and the greater the fly ash content,the greater the decrease in compressive strength,it is recommended to control the fly ash content in the range of 15%～30%,which can maintain the compressive strength standards and reduce the cost of materials.The compressive strength level of recy-cled aggregate decreases gradually with the increase of recycled aggregate substitution rate,and the limit value of concrete bearing capacity also decreases gradually.关键词
粉煤灰/再生骨料/再生混凝土/抗压强度/砌块性能Key words
Fly ash/Recycled aggregate/Recycled concrete/Compressive strength/Block performance分类
建筑与水利
