Study on hydration reaction of titanium gypsum–titanium slag low clinker cement

Jiang Yong; Su Yaobin; Gao Rui; Wu Maojie; Jiang Yun; Jiao Xiaofei

doi:10.7513/j.issn.1004-7638.2023.04.016

Volume 44 Issue 4

Aug. 2023

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Jiang Yong, Su Yaobin, Gao Rui, Wu Maojie, Jiang Yun, Jiao Xiaofei. Study on hydration reaction of titanium gypsum–titanium slag low clinker cement[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 103-111. doi: 10.7513/j.issn.1004-7638.2023.04.016

Citation:

Jiang Yong, Su Yaobin, Gao Rui, Wu Maojie, Jiang Yun, Jiao Xiaofei. Study on hydration reaction of titanium gypsum–titanium slag low clinker cement[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(4): 103-111. doi: 10.7513/j.issn.1004-7638.2023.04.016

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Study on hydration reaction of titanium gypsum–titanium slag low clinker cement

doi: 10.7513/j.issn.1004-7638.2023.04.016

1.
Mianyang Polytechnic, Mianyang 621000, Sichuan, China
2.
State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621000, Sichuan, China
3.
Sichuan Tong Xingyuan Building Material Technology Co. Ltd., Mianyang 621000, Sichuan, China
4.
Shanxi Polytechnic College, Taiyuan 030000, Shanxi, China

Received Date: 2023-03-23
Publish Date: 2023-08-30

Abstract

Abstract

In order to explore the feasibility of using titanium gypsum and titanium slag to prepare low clinker cement and study its hydration characteristics, 10 groups of cement were prepared with titanium gypsum, titanium slag and cement clinker as the main raw materials and sodium silicate as the activator. The compressive strength, softening coefficient and shrinkage rate of each group were tested. The hydration process and hydration products were studied by hydration thermal analysis, TG-DSC, XRD and SEM. The results show that appropriate increase of titanium slag or clinker content can improve the compressive strength and softening coefficient of cement, and reduce the shrinkage of cement. Sodium silicate can significantly activate the hydration reactivity of cement, and promote the generation of more C-S(A)-H, AFt and CH, so as to improve the compressive strength and softening coefficient, but excessive incorporation of sodium silicate will cause an increase in shrinkage rate. With the ratio of titanium gypsum, titanium slag, clinker and sodium silicate of 30∶55∶15∶8, the compressive strength reached 51.3 MPa of 56 days after curing and the softening coefficient was 0.74, showing good mechanical properties and water resistance.
- titanium gypsum,
- titanium slag,
- cement,
- clinker,
- sodium silicate,
- hydration

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References(21)

References

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