Study on the Influence of Composite Mineral Admixtures on the Strength of High Performance Concrete
In this paper,the effects of composite mineral admixtures on the long-term strength and drying shrinkage performance of high per-formance concrete were studied.The results show that the long-term strength of concrete with 20%cement-fly ash system is the best,and the dry shrinkage rate can be reduced by 19.81%.In order to improve the shrinkage performance of concrete,the system of 10%cement-miner-al powder-fly ash can be used,which can reduce the dry shrinkage rate of concrete by 24.13%.The most suitable concrete ratio can be ob-tained by selecting suitable concrete system and adjusting the dosage.
国家科技期刊平台
NSTL
万方数据
