用界面-填料法改善混凝土粗集料界面区微结构的研究

A STUDY ON IMPROVING THE MICROSTURUCTURE OF CONCRETE INTERFACE ZONE BY THE INTERFACE-FILLER TFCHNIQUE

本文运用SEM、XRD、EDXA和MIP等近代测试方法,研究了硅灰对改善混凝土中集料-水泥基体过渡层结构的作用。研究表明:采用界面-填料工艺可以明显改善混凝土中集料-水泥基体过渡层的CH晶体富集区和多孔区的微结构,从而明显提高混凝土的力学性能。

By means of mordern test approaches such as SEM、 XRD、EDXA and MIP, the effect of silicon ash on improving the structure of the transition layer of aggregate-cement matrix has been investigated. The results show that the mierostructure of both the CH crystal enrichment zone and the porous zone in the transition layer of cement matrix has been greatly improved and therefore its mechanical properties evidently enhanced.