Preparation and Strength Property of High Performance Concrete with High Volume Mineral AdmixtureYANG Yi1,2,SHI Sheng-jin1,TONG Zhang-fa1,FENG Qing-ge1(1.School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China;2.Guangxi Building Materials Academy,Nanning 530022,China)The preparation of high-performance concrete with the replacement of fly ash,granulated blast furnace slag,and silica fume alternative to the weight of cement(30%,50%,and 70%),water-binder ratio of 0.33 was studied under the condition of water consumption of 130 kg/m3.The influence of fly ash,silica fume and granulated blast-furnace slag on the fresh concrete workability and compressive strength was also discussed.The results show that high-performance concrete,which have good workability,early strength and excellent development of final strength can be obtained when with low water-binder ratio,large amount of fly ash,granulated blast-furnace slag and silica fume replacement.Replacing silica fume,granulated blast-furnace slag to a portion of fly ash,with superplasticizer,in high volume admixture of concrete,can further improve the workability of fresh concrete and effectively raise the early strength.concrete;fly ash;silica fume;granulated blgast furnace slag;compressive strength