改性偏高岭土复合粉煤灰对混凝土抗渗性能的影响OA北大核心CSCDCSTPCD
Effect of Modified Metakaolin and Fly Ash on Permeability of Concrete Resistance to Chloride Ion
将经改性的偏高岭土(MMK)与超细粉煤灰(FA)复合,以低于10％的总掺量内掺到混凝土中,研究了掺入前后和不同掺量对混凝土的工作性能、力学性能、电通量和氯离子扩散系数的影响.并运用压汞、TG-DSC耦合分析和SEM照片等方法,对其影响机理进行了探讨.结果表明:低掺量改性偏高岭土复合粉煤灰对混凝土抗氯离子渗透性能有显著的改善；对混凝土工作性能影响较小,能提高混凝土各龄期抗压强度；可以优化混凝土的孔结构和水泥石-集科界面过渡区.
The effect of modified metakaolin ( MMK) blended with fine fly ash (FA) on permeability of concrete resistance to chloride ion, where the content of MMK and FA mixture was below 10% by weight, has been investigated. Mercury intrusion, TG-DSC analysis and SEM were used to study the mechanism. The collapsed slump, compressive strength, electric flux and chloride diffusion coefficient of concrete mixes containing four different mixtures were tested. The experim…查看全部>>
水中和;王康;陈伟;孔贇
武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070湖北省建筑科学设计研究院,武汉430071武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070
建筑与水利
改性偏高岭土电通量氯离子扩散系数孔结构界面过渡区
modified metakaolinelectric fluxchloride diffusion coefficientpore structureITZ
《硅酸盐通报》 2012 (3)
658-663,6
广东省产学研重大专项(2011 A090200070)湖北省国际合作项目(2011j0180)
评论