THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Ning Luo

,

Hanliang Liang

,

Tao Shen

,

Weihao Yang

TEMPERATURE DEPENDENCE OF YOUNG’S MODULUS OF RED SANDSTONE

ABSTRACT
In the underground rock diagenetic process, or artificial excavation in rock engineering, it is possible to make experience in the high temperature. The temperature dependence of Young’s modulus of red sandstone was characterized by impulse excitation technology. It is shown that after heating-cooling cycle the Young’s modulus of red sandstone decreases down to about 90% from the room temperature up to 800°C of its initial value. The significant change of Young’s modulus with temperature is attributed to thermal-induced damages in red sandstone, including the rock composition variation, mass loss, mineral phase composition change, porosity increasing, grain trans-granular, micro-cracks penetrated and disruption.
KEYWORDS
red sandstone, impulse excitation technique, heating-cooling cycles, young’s modulus
PAPER SUBMITTED: 2018-08-22
PAPER REVISED: 2018-11-20
PAPER ACCEPTED: 2019-01-05
PUBLISHED ONLINE: 2019-05-26
DOI REFERENCE: https://doi.org/10.2298/TSCI180822229L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 3, PAGES [1599 - 1606]
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Temperature dependence of young’s modulus of red sandstone

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence