Preparation and its application of C30 superfine sand concrete pumped for super-high building
LIU Dengxian
GUI Gensheng
WU Xin
ZHANG Xu
Abstract：Based on the engineering practice,by the use of special fine sand instead of part of the mechine-made sand,fine aggregate gradation curve adjustment,fly ash of two stage of air separation and grade S95 ground slag,and the high performance admixture in low cementitious material,the C30 low grade high-rise pumping concrete is prepared with the performance of high fluidity and low loss. Based on the raw material selection,performance evaluation and research on compressive strength test,con-crete mix proportion of C30 super high-rise pumping concrete doped superfine sand pump is determined. The results show that the characteristics of the fine sand replacement mechanism of sand can improve concrete performance,which can meet the requirements of the construction and has good economic value and significance of generalization.
Keywords：superfine sandconcrete pumped for super-high buildinglow cementitious material
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 35-39 )