摘要
论文针对粉煤灰掺量一定的情况下,研究石灰石粉硅粉复掺对混凝土的抗压强度和抗冻耐久性能的影响。试验结果表明,在石灰石粉掺量为5%~10%时,混凝土强度比基准高。随着石灰石粉掺量的增加,混凝土的抗压强度降低。且随着混凝土的龄期增加,混凝土28 d和56 d抗压强度几乎不变。在混凝土冻融循环次数一定时,在粉煤灰掺量为5%和硅粉掺量为10%时,在石灰石粉掺量为5%~10%时,混凝土的抗冻性能较好,且高于基准混凝土。
The effects of limestone powder and silica fume content on the durability of concrete compressive strength and freeze resistance were studied when the fly ash silica fume certain. In the amount of limestone powder is 5%-10%,the strength of concrete is higher than the benchmark. With the increase of limestone powder content,the compressive strength of concrete was reduced. And with the increase of the age of concrete,concrete 28 d and 56 d compressive strength was almost unchanged. At the certain concrete freezing and thawing cycles,frost resistance of concrete with 5% fly ash,10% silica fume and limestone powder content is 5%-10%,was better than the base concrete.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2015年第S1期132-135,共4页
Bulletin of the Chinese Ceramic Society
基金
"十二五"国家科技支撑计划课题(2012BAJ20B04)
关键词
石灰石粉硅粉复掺
混凝土
抗压强度
抗冻耐久性
limestone powder and silicon fume
concrete
compressive strength
frost resistance
