CAJ | 학술논문

采用SEM,XRD,TG-DSC等微观测试手段,探讨掺高钛矿渣-水泥复合胶凝材料体系的水化机理.研究结果表明:高钛矿渣主要由结晶性强的稳定矿物组成,水化活性低;高钛矿渣颗粒分散并填充水泥颗粒,明显改善浆体结构.水化反应早期,硬化浆体结构疏松,水化产物较少,有大量未被反应的稳定晶相.反应后期,Ca(OH)_2参与二次水化反应,强度稳定增长.
채용SEM,XRD,TG-DSC등미관측시수단,탐토참고태광사-수니복합효응재료체계적수화궤리.연구결과표명:고태광사주요유결정성강적은정광물조성,수화활성저;고태광사과립분산병전충수니과립,명현개선장체결구.수화반응조기,경화장체결구소송,수화산물교소,유대량미피반응적은정정상.반응후기,Ca(OH)_2삼여이차수화반응,강도은정증장.
Hydration mechanism of cementitious composite based on high-titanium slag and cement was studied by micromorphology of hardened paste using SEM, XRD and TG-DSC. The results show as follows: High-titanium slag, whose hydration activity is quite low, is mainly composed of stable minerals with strong crystallinity. High-titanium slag particles can disperse cement particles as well as fill in between them to improve paste structure obviously. In the early period of hydration reaction, the hardened paste structure is loose and the hydration products are relatively less, and there still exist lots of unreacted stable minerals. In the late period of reaction, there is a secondary reaction of hydration between high-titanium slag and Ca(OH)_2, resulting in stable growth of mortar strength.