Proceedings of the conference on Recent Advances in Rock Engineering (RARE 2016)

Elastic modulus of thermally treated fine grained sandstone using non-contact laser extensometer

Authors
N.N. Sirdesai, Mahanta Bankim, P.G. Ranjith, T.N. Singh
Corresponding Author
N.N. Sirdesai
Available Online November 2016.
DOI
https://doi.org/10.2991/rare-16.2016.17How to use a DOI?
Keywords
Young's modulus;sandstone; laser extensometer; strain; thermal treatment
Abstract
Processes such as Underground Coal Gasification (UCG), Enhanced Oil Recovery (EOR) and underground disposal of nuclear waste involve the exposure of the surrounding rocks to extreme temperatures. At such high temperatures, the rock suffers substantial structural damage due to the anisotropy in the geotechnical properties of its constituent minerals. Due to variable thermal expansion within minerals, thermal stresses are generated in the rock micro-structure which cause change in the fracture pattern. New cracks may develop and pre-existing one may migrate and widen further; thereby reducing the mechanical strength of the rock. In this study, an attempt has been made to study the elastic modulus of thermally treated fine grained sandstone from the Dholpur district of Rajasthan. The elastic modulus was measured by using a MTS LX-Laser Extensometer. The rock specimens were thermally treated at various temperatures for a fixed duration. The change in the rock microstructure was studied viewing the rock specimen under a scanning electron microscope
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Proceedings
Recent Advances in Rock Engineering (RARE 2016)
Part of series
Advances in Engineering Research
Publication Date
November 2016
ISBN
978-94-6252-260-2
ISSN
2352-5401
DOI
https://doi.org/10.2991/rare-16.2016.17How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - N.N. Sirdesai
AU  - Mahanta Bankim
AU  - P.G. Ranjith
AU  - T.N. Singh
PY  - 2016/11
DA  - 2016/11
TI  - Elastic modulus of thermally treated fine grained sandstone using non-contact laser extensometer
BT  - Recent Advances in Rock Engineering (RARE 2016)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/rare-16.2016.17
DO  - https://doi.org/10.2991/rare-16.2016.17
ID  - Sirdesai2016/11
ER  -