粉煤灰对高强混凝土性能的影响  

Effect of Fly Ash on the Characteristics of High-strength Concrete

作　　者：胡小锋[1] 方晓瑞[1] 胡春环 

机构地区：[1]黄河建工集团有限公司,河南郑州450045 [2]河南黄河工程有限公司,河南郑州450003

出　　处：《华北水利水电学院学报》2009年第5期53-55,共3页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：在泵送混凝土中掺入适量的粉煤灰,特别是与减水剂复合使用时,不仅经济效益显著,而且能改善混凝土的性能.研究了粉煤灰高强混凝土中粉煤灰的细度、掺量对混凝土流动性、可泵性及强度的影响,最后给出了煤灰在高强混凝土中的最优掺量,可为工程应用借鉴.Mixed with proper amount of fly ash,especially useed compoundly water reducer,pumping concrete can not only obtain remarkable economic benefit,but also can improve its characteristics.The influence of the amount and quality of fly ash that was mixed in high-strength fly-ash concrete on its fluidity,pumpability and strength were studied,finally,the optimal amount of fly ash in highstrength concrete was given,it is a reference for the engineering application.

关 键 词：高强粉煤灰混凝土 可泵性 28d强度 掺量 

分 类 号：TU528.2[建筑科学—建筑技术科学]