Study on the effect of electric furnace steel slag-fly ash compound admixture on the properties of cement mortar

Wang Jie; Liang Yuehua

doi:10.7513/j.issn.1004-7638.2022.05.018

Volume 43 Issue 5

Nov. 2022

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Wang Jie, Liang Yuehua. Study on the effect of electric furnace steel slag-fly ash compound admixture on the properties of cement mortar[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 123-128. doi: 10.7513/j.issn.1004-7638.2022.05.018

Citation:

Wang Jie, Liang Yuehua. Study on the effect of electric furnace steel slag-fly ash compound admixture on the properties of cement mortar[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 123-128. doi: 10.7513/j.issn.1004-7638.2022.05.018

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Study on the effect of electric furnace steel slag-fly ash compound admixture on the properties of cement mortar

doi: 10.7513/j.issn.1004-7638.2022.05.018

Panzhihua University, Vanadium and Titanium Resource Comprehensive Utilization Key Laboratory of Sichuan Province, Panzhihua 617000, Sichuan, China

Received Date: 2021-11-11
Publish Date: 2022-11-01

Abstract

Abstract

The electric furnace steel slag ball produced by Ruisteel Company of Panzhihua Steel City Group was used to grind into micropowder, and the composite fly ash was used to prepare the electric furnace steel slag–fly ash composite admixture. The fluidity, 7 d and 28 d bending, compressive strength and activity of cement mortar with different composite ratios were measured. Scanning electron microscopy (SEM), thermogravimetry (TG) and differential scanning calorimetry (DSC) tests were performed on 28 d cement mortar samples. The results show that the fluidity of the electric furnace steel slag–fly ash composite admixture decreases with the increase of the content of electric furnace steel slag. In order to ensure the fluidity, it is suggested that the content of electric furnace steel slag in the electric furnace steel slag–fly ash composite admixture is no more than 50%.The activity of electric furnace steel slag powder is better than that of fly ash. The strength and activity of electric furnace steel slag–fly ash composite admixture increase with the increase of the content of electric furnace steel slag.
- electric furnace slag,
- fly ash,
- composite admixture,
- cement mortar,
- activity,
- thermal analysis,
- phase analysis

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References(17)

References

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