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International Journal of Geosynthetics and Ground Engineering

Erschienen in:

01.04.2024 | Original Paper

Influence of Silica–Alumina-Modified Materials on Mechanical Properties of Fly Ash-Based Geopolymers

verfasst von: Hai-tao Wang, Xin-yue Yang, Lin-lin Liu, Meng Wang, Cong Qu

Erschienen in: International Journal of Geosynthetics and Ground Engineering | Ausgabe 2/2024

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Abstract

When the silico–alumina materials in the raw materials are different, the mechanical properties of geopolymers often show great differences. A series of orthogonal experiments have obtained the strengths of fly ash-based geopolymers and metakaolin/slag–fly ash-based geopolymers with different ratios. The mechanical properties of coal ash-based geopolymers have a good modification effect, and the strength shrinkage of pure fly ash geopolymers is eliminated. Then, the obtained compressive strength data were analyzed for significance to obtain the influence degree of each influencing factor, and the optimal mixing ratio of various geopolymers was obtained through variance and range analysis. Finally, the mineral phase, micro-morphology and chemical bonding were analyzed by combining XRD, SEM, and other means, and the reaction mechanism was explored. It provides new ideas and theoretical basis for improving the performance of building materials and solving the problem of industrial waste stockpiling.

Vorheriger Artikel Evaluation of Penetration Resistance of Soils Reinforced with Geosynthetics Using CBR Tests

Nächster Artikel Thermal Modeling of Geosynthetics and Earth Structures in a Changing Climate: Overview and Future Challenges

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Titel: Influence of Silica–Alumina-Modified Materials on Mechanical Properties of Fly Ash-Based Geopolymers
verfasst von: Hai-tao Wang
Xin-yue Yang
Lin-lin Liu
Meng Wang
Cong Qu
Publikationsdatum: 01.04.2024
Verlag: Springer International Publishing
Erschienen in: International Journal of Geosynthetics and Ground Engineering / Ausgabe 2/2024
Print ISSN: 2199-9260
Elektronische ISSN: 2199-9279
DOI: https://doi.org/10.1007/s40891-024-00532-8

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