Testing Study on the Triaxial Compressive Strength of Medium-grained Sandstone after High Temperature

DOI

10.2991/ifeesm-15.2015.3How to use a DOI?

Keywords

medium-grained sandstone; high temperature; triaxial compression strength; mechanical properties.

Abstract

The triaxial compressive strength of medium-grained sandstone after different high temperature about on 25 400 800 and 1000 be researched by the servo-controlled testing machine RMT-150B. The test results show that: (1) it is still a strong liner relationship between the triaxial compressive strength of medium-grained sandstone after high temperature and the confining pressure, its confining coefficient is a constant, and the theoretical value of uniaxial compressive strength is expressed by the quadratic polynomial on the high temperature; (2) its internal friction is a constant without change to high temperature, and the cohesive strength be controlled by high temperature and its expression be given. (3) The theoretical formula about triaxial compressive strength of medium-grained sandstone after high temperature be established, and it accurately reflects the relationship between the strength and temperature, confining pressure.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chongbang Xu
AU  - Hao Wang
PY  - 2015/09
DA  - 2015/09
TI  - Testing Study on the Triaxial Compressive Strength of Medium-grained Sandstone after High Temperature
BT  - Proceedings of the 2015 International Forum on Energy, Environment Science and Materials
PB  - Atlantis Press
SP  - 10
EP  - 14
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-15.2015.3
DO  - 10.2991/ifeesm-15.2015.3
ID  - Xu2015/09
ER  -