摘要
在保持水胶比不变和7天抗压强度不变的条件下,分别研究了粉煤灰掺量对混凝土自生收缩的影响。研究结果显示:一定的范围内,在等水胶比和等强度条件下,混凝土的自生收缩都随着粉煤灰掺量的增大而减小。
The influence of fly ash addition on the autogenous shrinkage of high-strength concrete was respectively experimentally studied under the condition of that the compressive strength at 7 day and the w/b ratio were the same.The results showed that the more fly ash was used the more autogenous shrinkage was reduced in a certain scope under both conditions.
出处
《商品混凝土》
2007年第5期47-49,67,共4页
Ready-Mixed Concrete
关键词
粉煤灰
自生收缩
等水胶比
等强度
fly ash
autogenous shrinkage
same w/b ratio
same strength
