What question did this study set out to answer?

To quantify the influence of binder proportioning on the mechanical and durability performance of subgrade materials made from industrial by-products.

February 21, 2026Frontiers in MaterialsOpen Access

Performance evaluation of ternary solid waste-based geopolymer subgrade materials

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Authors

DLDongguo LiChangchun Institute of Technology YCYuhang CuiShaoxing University FGFanghui GuoChangchun Institute of Technology

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Implication

Evaluates geopolymer subgrade materials using industrial by-products, indicating potential for sustainable construction.

Key Points

To quantify the influence of binder proportioning on the mechanical and durability performance of subgrade materials made from industrial by-products.
Used three by-products: cement kiln dust, fly ash, and phosphogypsum as precursors.
Conducted mechanical and durability tests on ten mixtures, including UCS, water stability, F-T cycles, and UPV.
Varied total CKD-PG dosage from 42% to 90% to analyze performance outcomes.
Increased CKD-PG dosage improved internal structure, mechanical performance, and durability.
A dosage over 70% led to higher UCS and better water stability, with only a 2.6% strength loss after 15 freeze-thaw cycles.
Optimal mix was 46% CKD, 44% PG, and 10% FA, providing the best strength and frost resistance for highway applications.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/69994b88873532290d01fac6 https://doi.org/10.3389/fmats.2026.1774063

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Performance evaluation of ternary solid waste-based geopolymer subgrade materials

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Member takes

Implication

Key Points

Cite This Study

Performance evaluation of ternary solid waste-based geopolymer subgrade materials

Discussion

Member takes

Implication

Key Points

Cite This Study

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