矿渣玻璃体分相结构与矿渣潜在水硬活性本质的关系探讨

STUDY ON THE RELATIONSHIP BETWEEN THE PHASE SEPARATION OF SLAG GLASS AND THE LATENT HYDRAULIC ACTIVITY OF BFS

研究了矿渣玻璃体的微观结构及其在碱矿渣水泥水化过程中的解体特点，发现矿渣玻璃体存在着主要具有两相的微观分相结构，并且各相的存在状态和性质有很大差异。根据矿渣玻璃体微观分相结构的特点，可以较好地解释矿渣潜在水硬活性的本质。

With the method of TEM and EDAX,microstructure and phaseseparation of slag glass in hydration process of alkaliactived slag cement were studied.It is discovered that slag glass possesses a special microstructure of phase separation,i.e.it is not homogeneous,and is made up of two major phases:calciumrich phase and siliconrich phase.The former is a major continuous phase and the later is spherelike or pillarlike and wrapped by the former.The calciumrich phase is more unstable than silicarich phase in thermodynamics.Based on this discovery,the latent hydraulic activity of blast furnace slag can be explained.