摘要
试验研究了常温常湿自然环境下转运时间和高度差对输电工程混凝土坍落度、抗压强度和孔结构的影响。结果表明,坍落度损失最高达到35%的混凝土相比对照组的混凝土28 d抗压强度低16%,小孔体积分数占比减少6%,大孔体积分数占比增加5%。
The experiment studied the effects of transit time and height difference on the slump,compressive strength and pore structure of concrete in power transmission project under normal temperature and humidity.The results show that the concrete with a slump loss of more than 35%has 16%lower 28 d compressive strength than that of control group.The volume fraction of small pores decreases by 6%,and the volume fraction of macropores increases by 5%.
出处
《江苏建材》
2021年第3期32-35,共4页
Jiangsu Building Materials
关键词
坍落度损失
抗压强度
运输时间
转运高度差
孔结构
slump loss
compressive strength
transit time
transit height difference
pore structure
