High-titanium heavy slag concrete with electric furnace steel slag powder as admixture

Wang Wei; Wang Jie; Liang Yuehua

doi:10.7513/j.issn.1004-7638.2021.04.014

Volume 42 Issue 4

Aug. 2021

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Wang Wei, Wang Jie, Liang Yuehua. High-titanium heavy slag concrete with electric furnace steel slag powder as admixture[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 79-84. doi: 10.7513/j.issn.1004-7638.2021.04.014

Citation:

Wang Wei, Wang Jie, Liang Yuehua. High-titanium heavy slag concrete with electric furnace steel slag powder as admixture[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 79-84. doi: 10.7513/j.issn.1004-7638.2021.04.014

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High-titanium heavy slag concrete with electric furnace steel slag powder as admixture

doi: 10.7513/j.issn.1004-7638.2021.04.014

Wang Wei^{1, 2
,},
Wang Jie^{2
,
,},
Liang Yuehua²

1.
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China
2.
School of Civil and Architectural Engineering, Panzhihua University, Panzhihua 617000, Sichuan , China

Received Date: 2021-01-02
Publish Date: 2021-08-10

Abstract

Abstract

The feasibility and economic benefits for Panzhihua electric furnace steel slag powder which partially or wholly replaces the fly ash as the admixture of concrete were analyzed and studied. The high-titanium heavy slag concrete having the strength grade of C30 and C40 was prepared with electric furnace steel slag powder which has 50%, 75%, and 100% of replacement rate for the fly ash, respectively. The working properties, 28 d and 192 d compressive strength of the concrete with electric furnace steel slag powder were tested and compared with those of the concrete with fly ash as the only admixture. The results show that the steel slag powder meets the relevant index requirements for concrete admixtures and can be used as the admixture of high-titanium heavy slag concrete with good economic benefits. The high-titanium heavy slag concrete with C30 strength, designed with different ratios of the electric furnace steel slag powder, has well working properties and strength surplus values, with the best properties at 50% of substitution rate. When the cement strength grade is decreased under the original mix ratio, the 28 d actual measured strength of the high-titanium heavy slag concrete with different substitution rates and design strengths is slightly lower than the design value, but the latter strength increases significantly. The 192 d strength of the high-titanium heavy slag concrete, with a design strength of C30 at a replacement rate of 50%, exceeds 39 MPa with good working performance, which can be used in non-structural parts or structures that do not require high previous strength.
- high titanium heavy slag,
- concrete,
- electric furnace steel slag powder,
- fly ash,
- compressive strength,
- working performance

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References(9)

References

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