摘要
试验研究了早强剂掺量、水胶比和粉煤灰掺量对高流动性大掺量粉煤灰混凝土抗压强度的影响。正交试验结果表明,高流动性大掺量粉煤灰混凝土7d抗压强度的最主要影响因素为粉煤灰掺量,其次为早强剂掺量及水胶比;28d和90d抗压强度的最主要影响因素为粉煤灰掺量,其次为水胶比及早强剂掺量。通过正交设计可以得出高流动性大掺量分粉煤灰混凝土的配合比设计方法。
The influence of the amount of early strength agent,water binder ratio and fly ash content on the compressive strength of high volume fly ash concrete with high flowability is studied. The results of orthogonal experiments show that,The main factor affecting the 7d compressive strength of concrete is the amount of fly ash,followed by the amount of early strength agent and water cement ratio. The main factor affecting the compressive strength of 28 d and 90 d is the amount of fly ash,and secondly,the amount of water cement is better than that of early strength agent. Through the orthogonal design,the mix proportion design method of high fluidity and large amount of fly ash concrete is obtained
出处
《粉煤灰综合利用》
CAS
2015年第5期22-24,共3页
Fly Ash Comprehensive Utilization
基金
广西水利厅科技项目(201312
201419)
关键词
大掺量粉煤灰混凝土
正交设计
高流动性
抗压强度
high volume fly ash concrete
orthogonal design
high flowability
compressive strength
