Preparation and performance of alkali-activated high-titanium heavy slag cementitious materials

LIU Lan; CAO Zhiqin; HE Kui; SUN Xinpo; LIAO Yinghua; YANG Xing; TANG Wenjing; LI Yuting; ZHENG Taobin

doi:10.7513/j.issn.1004-7638.2025.02.014

Volume 46 Issue 2

May 2025

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2025 > 46(2): 97-102

LIU Lan, CAO Zhiqin, HE Kui, SUN Xinpo, LIAO Yinghua, YANG Xing, TANG Wenjing, LI Yuting, ZHENG Taobin. Preparation and performance of alkali-activated high-titanium heavy slag cementitious materials[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 97-102. doi: 10.7513/j.issn.1004-7638.2025.02.014

Citation:

LIU Lan, CAO Zhiqin, HE Kui, SUN Xinpo, LIAO Yinghua, YANG Xing, TANG Wenjing, LI Yuting, ZHENG Taobin. Preparation and performance of alkali-activated high-titanium heavy slag cementitious materials[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 97-102. doi: 10.7513/j.issn.1004-7638.2025.02.014

Citation:

LIU Lan, CAO Zhiqin, HE Kui, SUN Xinpo, LIAO Yinghua, YANG Xing, TANG Wenjing, LI Yuting, ZHENG Taobin. Preparation and performance of alkali-activated high-titanium heavy slag cementitious materials[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(2): 97-102. doi: 10.7513/j.issn.1004-7638.2025.02.014

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Preparation and performance of alkali-activated high-titanium heavy slag cementitious materials

doi: 10.7513/j.issn.1004-7638.2025.02.014

1.
College of Architecture and Construction, Sichuan University of Science and Technology, Zigong 643000, Sichuan, China
2.
College of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2024-08-29
Publish Date: 2025-05-06

Abstract

Abstract

Compared with traditional silicate cement, alkali-activated cementitious materials have advantages such as simple production processes, low investment, low energy consumption, low carbon dioxide emissions, and high slag utilization rates. This study develops alkali-activated high-titanium heavy slag cementitious materials by designing different water-to-cement ratios, alkali activators, and their dosages, and analyzes their mechanical properties to obtain the optimal material composition ratio. At the same time, through XRD and SEM analysis, the phase composition and microstructure are examined, revealing the hydration products and hydration mechanisms of alkali-activated high-titanium heavy slag cementitious materials. The main conclusions are as follows:Sodium silicate demonstrates significantly better activation effectiveness than sodium hydroxide. The alkali-activated high-titanium heavy slag cementitious material achieves optimal mechanical properties when prepared with a water-to-cement ratio of 0.32, 6% liquid sodium silicate content, and a modulus of 1. with a compressive strength of up to 13.5 MPa after 28 days. Phase and microstructure analyses indicate that the primary hydrated product of the cementitious material is calcium silicate hydrate, while a small amount of calcium aluminum silicate crystals is also generated.
- High-titanium heavy slag,
- alkaline activation,
- cementitious material,
- hydration mechanism,
- mechanical strength

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References(16)

References

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