Research on the preparation and hydration mechanism of the high-titanium blast furnace slag based cementitious material with low carbon emission

YANG Tingting; ZOU Ruiqi; YANG Zhiyuan; AO Jinqing; SHI Enze; YANG Yuanyi

doi:10.7513/j.issn.1004-7638.2026.01.014

Volume 47 Issue 1

Feb. 2026

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YANG Tingting, ZOU Ruiqi, YANG Zhiyuan, AO Jinqing, SHI Enze, YANG Yuanyi. Research on the preparation and hydration mechanism of the high-titanium blast furnace slag based cementitious material with low carbon emission[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 121-129. doi: 10.7513/j.issn.1004-7638.2026.01.014

Citation:

YANG Tingting, ZOU Ruiqi, YANG Zhiyuan, AO Jinqing, SHI Enze, YANG Yuanyi. Research on the preparation and hydration mechanism of the high-titanium blast furnace slag based cementitious material with low carbon emission[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 121-129. doi: 10.7513/j.issn.1004-7638.2026.01.014

Citation:

YANG Tingting, ZOU Ruiqi, YANG Zhiyuan, AO Jinqing, SHI Enze, YANG Yuanyi. Research on the preparation and hydration mechanism of the high-titanium blast furnace slag based cementitious material with low carbon emission[J]. IRON STEEL VANADIUM TITANIUM, 2026, 47(1): 121-129. doi: 10.7513/j.issn.1004-7638.2026.01.014

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Research on the preparation and hydration mechanism of the high-titanium blast furnace slag based cementitious material with low carbon emission

doi: 10.7513/j.issn.1004-7638.2026.01.014

1.
School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, Sichuan, China
2.
Panzhihua Huanye Metallurgical Slag Development Co., Ltd., Panzhihua 617000, Sichuan, China
3.
School of Materials Science and Engineering, Xihua University, Chengdu 610039, Sichuan, China

More Information

Received Date: 2025-11-11
Accepted Date: 2025-12-05
Rev Recd Date: 2025-12-05

Available Online: 2026-02-25

Publish Date: 2026-02-25

Abstract

Abstract

To achieve a lower carbon footprint for cementitious materials in concrete and promote the further efficient and high-value utilization of high-titanium blast furnace slag (HTBFS), a novel low-carbon HTBFS-based cementitious material was developed by using a composite mineral admixture of HTBFS powder (HTBFSP), lithium slag powder (LSP), and silica fume (SF) as a partial replacement for cement. Effects of mix proportions, along with mechanical and chemical activation methods on the physical and mechanical properties of this low-carbon HTBFS-based cementitious material were investigated, and its hydration mechanism was analyzed. The results showed that both mechanical activation and chemical excitation could increase the early and later-age strength of the low-carbon HTBFS-based cementitious material. At a mix proportion of 70% cement, 21% HTBFSP, 6% LSP, 3% SF, and 2% Ca(OH)₂, the compressive strength ratios reached 82.01% at 7 days and 97.21% at 28 days. The hydration reactivity of LSP was enhanced through the mechanical activation, a process that converted mechanical energy into surface energy. Meanwhile, a synergistic effect was achieved between the alkaline activation from Ca(OH)₂ and the sulfate activation from the LSP, which further stimulated the secondary hydration reaction of the composite mineral admixture.
- high-titanium blast furnace slag,
- lithium slag,
- silica fume,
- low-carbon cementitious material,
- hydration mechanism

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References(22)

References

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