复合型掺合料对高性能混凝土孔结构的影响  

Influence on the pore structure of high performance concrete by compound mineral additive

作　　者：程宇科[1] 王元纲[1] 张高勤[1] 胡亚风[1] 黄凯健[1] 李洁[1] 

机构地区：[1]南京林业大学土木工程学院,江苏南京210037

出　　处：《混凝土》2011年第2期86-88,共3页Concrete

基　　金：江苏省"六大人才高峰"行动计划资助项目(2007年C类)

摘　　要：采用磨细钢渣粉、粉煤灰和硅灰,按不同的比例配制成复合型掺合料,通过压汞法(MIP),分析了掺复合型掺合料高性能混凝土的孔结构。结果表明:掺入适当配制的复合型掺合料以后,能使高性能混凝土的密实度得到提高,孔隙率降低,平均孔径减小,孔径分布更合理,从而有利于提高高性能混凝土的耐久性。The pore structure of high performance concret（eHPC）is analysed by MIP;when the concrete is maked,the compound mineral addi-tive is used that is mixed in different proportion with steelmaking slag powder,fly ash and silica fume.The results show that the durability of HPC can be improved by increasing degree of closely knie,redusing percentage of pore,shrinking average aperture and making aperture be distributed reasonable,when it is mixed with the compound mineral additive.

关 键 词：复合型掺合料 高性能混凝土 压汞试验 孔结构 

分 类 号：TU528.041[建筑科学—建筑技术科学]