Study on preparation of super sulfate cement by titanium slag and phosphogypsum

Dong Liqing; Jiang Yong; Wang Guomin; Wang Zongyi

doi:10.7513/j.issn.1004-7638.2023.02.018

Volume 44 Issue 2

Apr. 2023

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Dong Liqing, Jiang Yong, Wang Guomin, Wang Zongyi. Study on preparation of super sulfate cement by titanium slag and phosphogypsum[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(2): 124-131. doi: 10.7513/j.issn.1004-7638.2023.02.018

Citation:

Dong Liqing, Jiang Yong, Wang Guomin, Wang Zongyi. Study on preparation of super sulfate cement by titanium slag and phosphogypsum[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(2): 124-131. doi: 10.7513/j.issn.1004-7638.2023.02.018

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Study on preparation of super sulfate cement by titanium slag and phosphogypsum

doi: 10.7513/j.issn.1004-7638.2023.02.018

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

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Received Date: 2022-12-29
Publish Date: 2023-04-30

Abstract

Abstract

Ten groups of super sulfate cement (SSC) were prepared by phosphogypsum, titanium slag, clinker and sodium silicate. The compressive strength, hydration heat release and hydration products of the matrix were studied, and the flexural strength, tensile strength and impact strength after fiber reinforcement were tested. The results show that both clinker and titanium slag can effectively improve the compressive strength of SSC, and promote hydration exothermic and secondary hydration reaction. The optimal cement ratio is phosphogypsum 25%, titanium slag 60%, clinker 13%, sodium silicate 2%, and the compressive strength reaches 42.1 MPa. Basalt fiber can significantly improve the flexural strength and impact strength of SSC. Specifically, with an addition of 0.3% 6-mm fiber, the flexural strength of the specimen increases by 27.0%. The impact strength increases by 120.3% when 0.6% 12-mm fiber is added. The tensile test results show that basalt fiber is disadvantageous to the improvement of the ultimate tensile strength of cement, but can enhance the tensile strain capacity of cement.
- super sulfate cement,
- titanium slag,
- phosphogypsum,
- basalt fiber,
- flexural strength,
- tensile strength

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References(22)

References

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