The effects of temperature on mechanical properties of rocks

Document Type : Research Paper

Authors

1 Department of Mining Engineering, Isfahan University of Technology, Isfahan, Iran

2 Mining Engineering Faculty, Sahand University of Technology, Tabriz, Iran

3 Department of Mining Engineering, Western Australian School of Mines (WASM), Curtin University, Australia

Abstract

In a natural condition, temperature variations and phase transition of pore water are the two most effective factors on the mechanical properties of rocks. Instabilities occurred as a result of climate changes, highlight the importance of rock characteristics. This paper conducted a laboratory investigation to study the temperature-dependent mechanical behavior of rocks and to examine the quantity and quality of this relationship. In order to perform laboratory tests, a temperature-controlling apparatus was developed. Studies were conducted on 152 specimens of concrete and three types of rocks, including granite, red travertine, and walnut travertine. Then, the effect of temperature variations, from -30 to +30ºC with 10ºC intervals on the mechanical properties of the rocks, was studied. The results showed that temperature reduction, caused by pore water phase transition, improved the mechanical properties of the rocks. The maximum variation of the mean uniaxial compressive strength from +30ºC to -30ºC belonged to granite (40.1%), while the concrete specimen showed the minimum variation on the test results (33.7%). Red travertine (38.7%) and walnut travertine (34.2%) exhibited lower variations compared to granite. Also, the maximum variation in the mechanical behavior of rocks occurred between -10 and 0 °C. Additionally, variations in the mechanical properties of cracked rock samples were more than the rocks with spherical pore and the same porosity percent.

Keywords

References

[1] Lu, Z., Xian, S., Yao, H., Fang, R., & She, J. (2019). Influence of freeze-thaw cycles in the presence of a supplementary water supply on mechanical properties of compacted soil. Cold Regions Science and Technology, 157, 42-52.
[2] Liu, S., & Xu, J. (2015). An experimental study on the physicomechanical properties of two post-high-temperature rocks. Engineering Geology, 185, 63-70.
[3] Yu, J., Chen, X., Li, H., Zhou, J. W., & Cai, Y. Y. (2015). Effect of freeze-thaw cycles on mechanical properties and permeability of red sandstone under triaxial compression. Journal of Mountain Science, 12(1), 218-231.
[4] Lu, C., Sun, Q., Zhang, W., Geng, J., Qi, Y., & Lu, L. (2017). The effect of high temperature on tensile strength of sandstone. Applied Thermal Engineering, 111, 573-579.
[5] Su, H., Jing, H., Yin, Q., & Yu, L. (2018). Effect of thermal environment on the mechanical behaviors of building marble. Advances in Civil Engineering, 1-8.
[6] Chen, Y.L., Ni, J., Shao, W., & Azzam, R. (2012). Experimental study on the influence of temperature on the mechanical properties of granite under uniaxial compression and fatigue loading. International Journal of Rock Mechanics & Mining Sciences, 56, 62-66.
[7] Kolay, E. (2016). Modeling the effect of freezing and thawing for sedimentary rocks. Environmental Earth Sciences, 75, 210.
[8] Luo, X., Jiang, N., Fan, X., Mei, N., & Luo, H. (2015). Effects of freeze-thaw on the determination and application of parameters of slope rock mass in cold regions. Cold Regions Science and Technology, 110, 32-37.
[9] Celik, M.Y., Akbulut, H., & Ergul, A. (2014). Water absorption process effect on strength of Ayazini tuff, such as the uniaxial compressive strength (UCS), flexural strength and freeze and thaw effect. Environmental Earth Sciences, 71(9), 4247-4259.
[10] Sammis, C.G., & Biegel, R.L. (2005). Seismic radiation from explosion in frozen crystalline rock. 27th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies, Rancho Mirage, California.
[11] Nicholson, D.T., & Nicholson, F.H. (2000). Physical deterioration of sedimentary rocks subjected to experimental freeze–thaw weathering. Earth Surface Processes and Landforms, 25(12), 1295-1307.
[12] Xu, G., & Liu, Q.S. (2005). Analysis of mechanism of rock failure due to freeze–thaw cycling and mechanical testing study on frozen–thawed rocks. Chinese Journal of Rock Mechanics and Engineering, 24(17), 3076-3082.
[13] Takarli, M., Prince, W., & Siddique, R. (2008). Damage in granite under heating/cooling cycles and water freeze–thaw condition. International Journal of Rock Mechanics & Mining Sciences, 45(7), 1164-1175.
[14] Tan, X., Chen, W., Yang, J., & Cao, J. (2011). Laboratory investigations on the mechanical properties degradation of granite under freeze–thaw cycles. Cold Regions Science and Technology, 68(3), 130-138.
[15] Kodama, J., Goto, T., Fujii, Y., & Hagan, P. (2013). The effects of water content, temperature and loading rate on strength and failure process of frozen rocks. International Journal of Rock Mechanics & Mining Sciences, 62, 1-13.
[16] Hosseini, M. (2017). Effect of temperature as well as heating and cooling cycles on rock properties. Journal of Mining & Environment, 8(4), 631-644.
[17] Chen, S., Yang, C., & Wang, G. (2017). Evolution of thermal damage and permeability of Beishan granite. Applied Thermal Engineering, 110, 1533-1542.
[18] Lu, Y., Liu, S., Alonso, E., Wang, L., Xu, L., & Li, Z. (2019). Volume changes and mechanical degradation of a compacted expansive soil under freeze-thaw cycles. Cold Regions Science and Technology, 157, 206-214.
[19] Ruedrich, J., & Siegesmund, S. (2007). Salt and ice crystallisation in porous sandstones. Environmental Geology, 52(2), 225-249.
[20] Chen, T.C., Yeung, M.R., & Mori, N. (2004). Effect of water saturation on deterioration of welded tuff due to freeze–thaw action. Cold Regions Science and Technology, 38(2-3), 127- 136.
[21] ISRM. (2007). The complete ISRM suggested methods for rock characterization, testing and monitoring: 1974-2006. In R. Ulusay & J. A. Hudson (Eds.), Suggested methods prepared by the commission on testing methods (pp. 137–140). Ankara: International Society for Rock Mechanics, Compilation Arranged by the ISRM Turkish National Group.
[22] Hauck, C. (2001). Geophysical methods for detecting permafrost in high mountains (Doctoral Dissertation). ETH Zurich, Zurich, Switzerland.
[23] Ghobadi, M.H., Beydokhti, A.R.T., Nikudel, M.R., Asiabanha, A., & Karakus, M. (2016). The effect of freeze–thaw process on the physical and mechanical properties of tuff. Environmental Earth Sciences, 75, 846.
[24] Hale, P. A., & Shakoor, A. (2003). A laboratory investigation of the effect of cyclic heating and cooling, wetting and drying, and freezing and thawing on the comprehensive strength of selected sandstones. Environmental and Engineering Geoscience, 9(2), 117–130.
[25] Concu, G., Nicolo, B.D., & Valdes, M. (2014). Prediction of building limestone physical and mechanical properties by means of ultrasonic P-wave velocity. The Scientific World Journal, 1-8. [
26] Ding, Q.L., Song, S.B. (2016). Experimental investigation of the relationship between the P-wave velocity and the mechanical properties of damaged sandstone. Advances in Materials Science and Engineering, 1-10.
[27] Bieniawski, Z.T. (1967). Mechanism of brittle fracture of rock, Part I: theory of the fracture process. International Journal of Rock Mechanics and Mining Sciences, 4(4), 395-406
International Journal of Mining and Geo-Engineering
Volume 54, Issue 2
December 2020
Pages 147-152

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