【摘要】 本研究结合河南地区地材情况,通过对原材料和配合比的优化,采用优质磨细矿粉、粉煤灰的复合掺合料和外加剂,成功配制C80级高强混凝土。其具有高流动性和保塑性,坍落度经时损失小,早期强度高,适合于高层建筑施工。更多还原

【Abstract】 Based on the optimization of material and proportion,adopting good powder of coal ash and fine grinding slag as admixture agent of mineral and high performance water reducing agent,using small percentage of water cement ration,C80 high-strength concrete may be manufactured successfully.This kind of concrete enjoys the following merits such as high fiuidity in workability,small percentage loss of slump and early extra strong in strength,and it adapts for the construction of high-rise buildings.更多还原