关键词: ：钛铁渣, 钛基铝酸盐水泥, 微观结构, 抗折强度, 耐压强度

Abstract: To investigate the feasibility of producing Ti-based aluminate cement from ferrotitanium
slag, a solid metallurgical waste，experiments were conducted using ferrotitanium slag and calcium
oxide as raw materials. Through the experiments，the proportions of three different groups of
cement raw materials are determined with three aluminate alkalinity coefficients of 0.7，0.8 and
0.9. The corresponding Ti-based aluminate cement samples were prepared by firing in an electric
furnace at 1 350 ℃ for 30 min，and the micro-structure，phase composition，setting time and
bond strength of the samples are tested and analyzed. The results show that with the decrease
of the proportion of ferrotitanium slag, the content of Al2O3 gradually decreases，the content of
CaO gradually increases，the CA phase of the synthesized Ti-based aluminate cement gradually
increases，the CA2 phase gradually decreases，the setting time gradually shortens，and the
flexural strength and compressive strength at the 1st day and the 3rd day gradually increase.

Key words: F e r r o t i t a n i u m s l a g , T i - b a s e d a l u m i n a t e c e m e n t , M i c r o - s t r u c t u r e , F l e x u r a l
s t r e n g t h , C o m p r e s s i v e s t r e n g t h