3D nanostructure of CO2‐mineralized steel slag DOI Open Access

Linshan Li,

Tiefeng Chen, Ming Sun

et al.

Journal of the American Ceramic Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Abstract Steel slag, a major industrial waste in China, possesses significant CO 2 absorption potential. In this study, the sequestration of steel slag reached up to 15.6%; however, excessive mineralization resulted reduced hydration activity. Compared unmineralized 1‐day compressive strength decreased by 15.9%, and cumulative heat over 72 h dropped 8%. Using advanced visualization techniques such as scanning electron microscopy‐backscattered (SEM‐BSE), 3D X‐ray, focused ion beam‐transmission microscopy (FIB‐TEM), study reveals microstructure overmineralized identifying composition calcite outer layer, an amorphous SiO transition area, core. The reaction affected 84.80% particles, with volume expansion causing dense regions become porous, increasing porosity from 0% 1.62%. This also risks lattice distortion. During mineralization, layer forms, blocking internal silicate gels calcium minerals, reducing activity slag. offers insights for optimizing applications

Language: Английский

Effect of Biochar Characteristics on Freeze-thaw Durability of Biochar-cement Composites DOI
Tiefeng Chen,

Ziyuan Yang,

Huanhuan Liu

et al.

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 111959 - 111959

Published: Feb. 1, 2025

Language: Английский

Citations

3
Preparation of artificial aggregates with high fly ash content through air curing and carbonation curing DOI
Zhong Zhang,

Junlin Lyu,

Sen-Hui Liu

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 461, P. 139874 - 139874

Published: Jan. 1, 2025

Language: Английский

Citations

0
Porous Biochar-Assisted Aqueous Carbonation of Steel Slag as an Adsorptive Crystallization Modifier for Value-Added Cement Applications DOI

Linshan Li,

Yi Jiang, Tiefeng Chen

et al.

Cement and Concrete Composites, Journal Year: 2025, Volume and Issue: unknown, P. 106002 - 106002

Published: Feb. 1, 2025

Language: Английский

Citations

0
Internal and external synergistic CO2 capture of cement-based materials using modified biochar DOI

Ziyuan Yang,

J.P. Xu,

Tiefeng Chen

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 470, P. 140696 - 140696

Published: March 6, 2025

Language: Английский

Citations

0
Combination of waste plastic and coal gangue as coarse aggregates applied into concrete blended with metakaolin DOI
Zongyun Mo, Xinyu Zhang, Yang Wang

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 471, P. 140732 - 140732

Published: March 9, 2025

Language: Английский

Citations

0
In-situ XRD study of the effects of amino acids on the carbonation kinetics of cementitious calcium silicates DOI Creative Commons
Ziyu Chen,

Tian Zhang,

Yuxiang Wu

et al.

Cement and Concrete Research, Journal Year: 2025, Volume and Issue: 193, P. 107879 - 107879

Published: March 26, 2025

Language: Английский

Citations

0
Precalcination-modified lead-zinc tailings for supersulfated cement production: Insights into phase assemblages, microstructure, and mechanical properties DOI

Zhongtao Luo,

Mengxiao Ge,

Jiahui Ou

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 473, P. 141076 - 141076

Published: April 1, 2025

Language: Английский

Citations

0
3D nanostructure of CO2‐mineralized steel slag DOI Open Access

Linshan Li,

Tiefeng Chen, Ming Sun

et al.

Journal of the American Ceramic Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Abstract Steel slag, a major industrial waste in China, possesses significant CO 2 absorption potential. In this study, the sequestration of steel slag reached up to 15.6%; however, excessive mineralization resulted reduced hydration activity. Compared unmineralized 1‐day compressive strength decreased by 15.9%, and cumulative heat over 72 h dropped 8%. Using advanced visualization techniques such as scanning electron microscopy‐backscattered (SEM‐BSE), 3D X‐ray, focused ion beam‐transmission microscopy (FIB‐TEM), study reveals microstructure overmineralized identifying composition calcite outer layer, an amorphous SiO transition area, core. The reaction affected 84.80% particles, with volume expansion causing dense regions become porous, increasing porosity from 0% 1.62%. This also risks lattice distortion. During mineralization, layer forms, blocking internal silicate gels calcium minerals, reducing activity slag. offers insights for optimizing applications

Language: Английский

Citations

3