摘要
试验研究了水胶比、粉煤灰掺量和再生粗骨料取代率对大掺量粉煤灰再生混凝土抗压强度的影响。正交试验结果表明,大掺量粉煤灰再生混凝土7d、14d、28d、56d、90d抗压强度的最主要影响因素为粉煤灰掺量,其次为水胶比及再生粗骨料取代率,通过正交设计可以得出大掺量粉煤灰再生混凝土的配合比设计方法。
The influence of the amount of water binder ratio,fly ash content and replacement rate of recycled coarse aggregate on the compressive strength of high volume fly ash recycled concrete were studied. The results of orthogonal experiments showed that,the main factor affecting the 7d,14 d,28d,56 d,90d compressive strength of concrete were the content of fly ash,followed by water binder ratio and replacement rate of recycled coarse aggregate. Through the orthogonal design,the mix proportion design method of high volume fly ash recycled concrete was obtained.
出处
《粉煤灰综合利用》
CAS
2016年第4期14-17,20,共5页
Fly Ash Comprehensive Utilization
基金
广西水利厅科技项目(201312
201419)
关键词
大掺量粉煤灰再生混凝土
正交设计
配合比
抗压强度
high volume fly ash recycled concrete
orthogonal design
mix proportion design
compressive strength
