磺化三聚氰胺甲醛树脂对水泥水化机理的影响

通过X 射线衍射分析、红外光谱分析及结合水的测定,阐明了由于水泥颗粒对磺化三聚氰胺甲醛树脂的吸附,使得电位增高、粒子间斥力增大、分散均匀、水化完全,同时改变了水化产物结晶的速度和晶体分布的状态,结果使水泥石结构密实,晶体间搭接合理、空隙率减少,水泥石强度提高。

Cement hydration mechanism affected by sulfonated melamine-formadehyde resin

This paper deals with the effects of sulfonated melamine-formadehyde resin on the hydration process of cement.X-ray,infrared spectrum and bound-water determination indicated that cement granules absorbed sulfonated melamine-formadehyde resin.This makes the static potential and repulsion between the granules increase,resulting in a complete dispersic and hydration.At the same time,crystallinity of the hydrated cement and distribution of the crystalloid changed, thickening the alite structure,jointng the crystalloid rationally,and reducing the percentage of void,all these increasing the strength of treated cement.