Study on the synergistic effect of granulated blast furnace slag and basalt fiber on concrete performance

PAN Xifei; GAO Song; SONG Haipeng; GAO Huaguo; MA Fanglei; JIANG Ziheng

doi:10.7513/j.issn.1004-7638.2026.03.014

Volume 47 Issue 3

Jun. 2026

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PAN Xifei, GAO Song, SONG Haipeng, GAO Huaguo, MA Fanglei, JIANG Ziheng. Study on the synergistic effect of granulated blast furnace slag and basalt fiber on concrete performance[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(3): 124-133. doi: 10.7513/j.issn.1004-7638.2026.03.014

Citation:

PAN Xifei, GAO Song, SONG Haipeng, GAO Huaguo, MA Fanglei, JIANG Ziheng. Study on the synergistic effect of granulated blast furnace slag and basalt fiber on concrete performance[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(3): 124-133. doi: 10.7513/j.issn.1004-7638.2026.03.014

Citation:

PAN Xifei, GAO Song, SONG Haipeng, GAO Huaguo, MA Fanglei, JIANG Ziheng. Study on the synergistic effect of granulated blast furnace slag and basalt fiber on concrete performance[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(3): 124-133. doi: 10.7513/j.issn.1004-7638.2026.03.014

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Study on the synergistic effect of granulated blast furnace slag and basalt fiber on concrete performance

doi: 10.7513/j.issn.1004-7638.2026.03.014

1.
School of Civil Engineering, Liaoning University of Science and Technology, Anshan 114000, Liaoning, China
2.
China Hebei Construction & Geotechnical Investigation Group Ltd., Shijiazhuang 050200, Hebei, China

More Information

Received Date: 2025-12-11
Accepted Date: 2026-01-22
Rev Recd Date: 2026-01-20
Publish Date: 2026-06-29

Abstract

Abstract

The large accumulation of granulated blast furnace slag (GBFS) has caused potential environmental risks. In this study, GBFS was used to replace part or all of the manufactured sand (MS), and Basalt fiber (BF) was added to prepare concrete. The working performance and mechanical properties of concrete were tested, and the influence mechanism of the two on the above properties of concrete was analyzed by microscopic image. The results show that the GBFS sand replacement meets the requirements of the specification. The compressive strength of the concrete cube is used as the assessment index, the optimal sand replacement rate is 60%, which is 12.4% higher than the strength of the 28d benchmark concrete. The optimum content of BF is 0.3%. The optimal mix ratio of synergistic effect is water-binder ratio 0.35, GBFS replacement rate 60%, BF length 9 mm-0.3%, and water reducing agent 1.5%. GBFS sand replacement can promote secondary hydration, generate more C-S-H gel and refine pores. Meanwhile, BF plays an effective role in bridging and reducing cracks in the matrix, and makes up for the reduction of early strength of concrete caused by GBFS sand replacement.
- granulated blast furnace slag,
- basalt fiber,
- orthogonal test,
- working performance,
- mechanical properties,
- microscopic analysis

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References(33)

References

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