耐火材料 ›› 2023, Vol. 57 ›› Issue (2): 166-168.DOI: 10.3969/j.issn.1001-1935.2023.02.017

• 生产应用 • 上一篇    下一篇

烧成温度对钛基铝酸盐水泥性能的影响

张康康, 马淑龙, 苏玉柱, 杨晨, 刘磊, 李燕京, 罗华明   

  1. 北京金隅通达耐火技术有限公司 北京 100085
  • 收稿日期:2022-05-30 出版日期:2023-04-15 发布日期:2023-04-17
  • 作者简介:张康康:男,1983年生,硕士,工程师。E-mail:zhangkk@bjtd.com.cn
  • 基金资助:
    国家重点研发计划项目(2018YFC1901504)。

Effect of firing temperature on properties of titanium-based aluminate cement

Zhang Kangkang, Ma Shulong, Su Yuzhu, Yang Chen, Liu Lei, Li Yanjing, Luo Huaming   

  1. First author’s address: Beijing Jinyu Tongda Refractory Technologies Co., Ltd., Beijing 100085, China
  • Received:2022-05-30 Online:2023-04-15 Published:2023-04-17

摘要: 以钛铁渣和氧化钙为原料,在Al2O3-CaO-TiO2系相图的CaAl2O4-CaAl4O7-CaTiO3三角形中选择Al2O3、CaO、TiO2质量分数分别为58%、34%、8%的组成点作为配料点,其铝酸盐碱度系数为0.9。经配料、混合、成型后分别在1 300、1 400和1 450 ℃保温30 min,待炉内温度冷却至接近1 200 ℃时,取出置于空气中急冷,再粉磨至0.088 mm方孔筛筛余≤10%,制得水泥熟料试样,然后分析其物相组成和显微结构,检测其凝结时间和强度。结果表明:随着烧成温度的提高,水泥熟料中的CA2量逐渐增多,C12A7量逐渐减少。1 400 ℃烧成后水泥熟料试样中的CA量最多,凝结时间最短,早期强度最高。

关键词: 烧成温度, 钛铁渣, 钛基铝酸盐水泥, 凝结时间, 早期强度

Abstract: Using ferrotitanium slag and calcia as raw materials,in the CaAl2O4-CaAl4O7-CaTiO3 triangle of the Al2O3-CaO-TiO2 phase diagram,the composition of 58% Al2O3,34% CaO and 8% TiO2,by mass,was adopted as the batching formulation,whose aluminate alkalinity was 0.9.Cement clinker samples were prepared after batching,mixing,molding,firing at 1 300,1 400 and 1 450 ℃ for 30 min,respectively,taking out when the furnace interior is cooled to nearly 1 200 ℃,quenching in air,and then grinding (residue≤10% after sieving with a square hole mesh of 0.088 mm).The phase composition and the microstructure of the samples were analyzed.The setting time and the strength were tested.The results show that with the increase of the firing temperature,the amount of CA2 in the cement clinkers increases and the amount of C12A7 decreases gradually.The cement clinker fired at 1 400 ℃ has the most CA,the shortest setting time and the highest early strength.

Key words: firing temperature, ferrotitanium slag, titanium-based aluminate cement, setting time, early strength

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