耐火与石灰 ›› 2024, Vol. 49 ›› Issue (2): 10-11.

• 综述 • 上一篇    下一篇

钛铁渣加入量对钛基铝酸盐水泥性能的影响

  

  1. (北京金隅通达耐火技术有限公司,北京 100085)
  • 出版日期:2024-04-10 发布日期:2024-04-28

Effect of ferrotitanium slag dosage on properties of Ti-based aluminate cement

  1. (Beijing Jinyu Tongda Refractory Technologies Co.,Ltd.,100085 Beijing,China)
  • Online:2024-04-10 Published:2024-04-28

摘要: 为了研究冶金固废钛铁渣制备钛基铝酸盐水泥的可行性,试验以钛铁渣和氧化钙为原料,以0.7、0.8 和0.9
这3 个铝酸盐碱度系数确定3 组不同水泥生料的配比,通过电炉1 350 ℃保温30 min 烧成制备了相应的钛基铝酸盐
水泥试样,并对试样的微观结构、物相组成、凝结时间和结合强度进行了检测分析。结果表明,随着钛铁渣加入比例
的降低,配料中Al2O3 含量逐渐减少,CaO 含量逐渐增加,合成的钛基铝酸盐水泥的CA 相逐渐增加,CA2 相逐渐减少,
相应地凝结时间逐渐缩短,1 天与3 天的抗折强度及耐压强度逐渐提高。

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

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