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Arabian Journal for Science and Engineering
Erschienen in: Arabian Journal for Science and Engineering 5/2020

17.09.2019 | Research Article - Civil Engineering

A Coupled Thermo-mechanical Damage Modeling Application of Cemented Coal Gangue-Fly Ash Backfill Under Uniaxial Compression

verfasst von: Di Wu, Runkang Zhao, Wentao Hou, Shuo Wang

Erschienen in: Arabian Journal for Science and Engineering | Ausgabe 5/2020

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Abstract

Cemented coal gangue-fly ash backfill (CGFB), which is a mixture of coal gangue, fly ash, cement and water, is introduced and used for waste disposal and ground control. Once placed underground, the CGFB is required to possess satisfactory strength and stability for the support of overlying roof. Therefore, it is crucial to understand the mechanical behavior and damage evolution of CGFB, which is also affected by thermal factors. This paper develops a coupled thermo-mechanical damage model to describe the mechanical response and damage of CGFB under uniaxial compression. The developed model considers the thermal factors of heat conduction and binder hydration. The validity of the developed model is verified by the comparison of simulation results and data from an experimental study. The developed model is then used for some applications. The modeling results can contribute to a better design and preparation of stable and endurable CGFB structures.
Vorheriger Artikel Effect of Molasses and Water–Cement Ratio on Properties of Recycled Aggregate Concrete
Nächster Artikel Finite-Element-Based Monte Carlo Simulation for Sandwich Panel-Retrofitted Unreinforced Masonry Walls Subject to Air Blast

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Metadaten
Titel
A Coupled Thermo-mechanical Damage Modeling Application of Cemented Coal Gangue-Fly Ash Backfill Under Uniaxial Compression
verfasst von
Di Wu
Runkang Zhao
Wentao Hou
Shuo Wang
Publikationsdatum
17.09.2019
Verlag
Springer Berlin Heidelberg
Erschienen in
Arabian Journal for Science and Engineering / Ausgabe 5/2020
Print ISSN: 2193-567X
Elektronische ISSN: 2191-4281
DOI
https://doi.org/10.1007/s13369-019-04118-9

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