OxCem: A Novel Carbon-Negative Cement Based on Oxalic Acid and Steel Slag

The proper disposal of steel slag remains a challenging issue. This study explores a novel carbon-negative cement, utilizing the reaction between steel slag and oxalic acid. The mechanical properties, phase composition, and microstructure of OxCem were investigated through compressive strength tests, TG analysis, XRD, and MIP test. The results indicate that the optimal EAF/OA ratio is 3.5, achieving a 28-day compressive strength of 34.7 MPa. The strength enhancement of the paste is attributed to the influence of the reaction products, ferrous oxalate and calcium oxalate, on the pore structure.

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Publication Details

Published
2025-09-27
DOI
https://doi.org/10.5703/1288284318083
Primary Topic
Geochemistry and Geologic Mapping
Type
article
Field-Weighted Citation Impact
0.00

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article

OxCem: A Novel Carbon-Negative Cement Based on Oxalic Acid and Steel Slag

Geochemistry and Geologic Mapping
article

OxCem: A Novel Carbon-Negative Cement Based on Oxalic Acid and Steel Slag

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Abstract

The proper disposal of steel slag remains a challenging issue. This study explores a novel carbon-negative cement, utilizing the reaction between steel slag and oxalic acid. The mechanical properties, phase composition, and microstructure of OxCem were investigated through compressive strength tests, TG analysis, XRD, and MIP test. The results indicate that the optimal EAF/OA ratio is 3.5, achieving a 28-day compressive strength of 34.7 MPa. The strength enhancement of the paste is attributed to the influence of the reaction products, ferrous oxalate and calcium oxalate, on the pore structure.

Missouri University of Science and Technology (US)
U.S. Department of Energy
Openalex Percentile: Top 25%
Geochemistry and Geologic Mapping
DOIOpen Access PDFOpenAlex
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OxCem: A Novel Carbon-Negative Cement Based on Oxalic Acid and Steel Slag · (2025) | TGRS Research Map | TGRS