【作者】 袁庆莲； 金勇刚； 王勇飞；

【Author】 Yuan Qing-lian;JIin Yong-gang;Wang Yong-fei;Hunan Academy Of Building Research;

【机构】 湖南省建筑科学研究院；

【摘要】 本文通过测定混凝土库仑电量,研究了粉煤灰对不同掺量、不同细度、不同水胶比的石灰石混凝土的抗渗性能影响。研究结果表明:粉煤灰改善了石灰石粉混凝土抗渗性能;同时石灰石粉掺量增加,混凝土抗渗性能下降,石灰石粉细度对混凝土抗渗性影响不大。更多还原

【Abstract】 In this paper,the effects of the addition and fineness and water-binder ratio of limestone powder and fly ash and the mixed addition of limestone powder and fly ash on the concrete anti-permeability were studied,by measuring coulomb of concrete.The results indicate that the replacement of ground limestone is disadvantage for the concrete anti-permeability.The concrete anti-permeability become worse as the replacement of ground limestone increase.The fineness of ground limestone had little effect on the concrete anti-permeability.Fly ash is better for the concrete anti-permeability.The addition of fly ash can effectively improve the anti-permeability of the concrete with ground limestone powder.更多还原