超细粉煤灰高强喷射混凝土试验优化设计

Optimum experimental design of high strength sprayed concrete using superfine fly ash

用均匀设计方法对掺超细粉煤灰配制高强喷射混凝土进行研究，探索水灰比、灰砂比、粉煤灰细度三个因素对１ｄ，３ｄ，７ｄ，２８ｄ强度四个考核指标的影响规律，优化组合后，配制成早期和后期强度都很高的粉煤灰高强喷射混凝土．

Applying uniform desing method to the research of high strength spraged fly ash concrete,this paper explores the influence rules of water cement ratio,lime sand ratio and the fineness of fly ash upon the strength paraments in 1d,3d,7d,and 28d.By the optimization and combination of the three factors both early strength and late strength are increased for high strength sprayed concrete using superfine fly adh.