摘要
Abstract
In this paper,experiments were conducted to replace 10%,20%,30%,40%,and 50%of the machine-made sand in the C30 concrete mix proportion with stone chips.The effects of different amounts of stone chips on the workability and compressive strength of concrete were studied.And using mixed experiments of mechanism sand and 40%stone chips with different MB values,the effects of different MB values on concrete cohesion,water retention,1-hour time loss,and compressive strength were studied;The research results indicate that a certain amount of high-quality stone chips helps to increase the early strength of concrete,while an increase in the MB value of machine-made sand will lead to a decrease in the workability and compressive strength of concrete.关键词
机制砂/MB值/抗压强度/工作性能Key words
Mechanical sand/MB value/Compressive strength/Working performance分类
建筑与水利
