Microstructure Influence on The Response of Granitoids to Thermal Shock


1 Geology Department, Faculty of Science, Bu-Ali Sina University, Hamedan

2 Bu- Ali Sina University. Department of geology. M.H.Ghobadi

3 Geology department, Faculty of science,Bu Ali Sina University, Hamedan, Iran

4 Geology department, Faculty of science, Bu Ali Sina University, Hamedan, Iran

5 Department of Geology, Payame Noor University, Tehran, Iran


Granite rocks are widely used in many construction fields and investigate about preexistent or induced microcracks in them had been the subject of many researches. Since the rock thermal properties is affected by thermal properties of all constituent minerals of the rock, in the microscopic thin sections study, assembled effect of them is showed as microcrack creation. In this study, microcrack induction was performed in three coarse-grained granite samples using heat in the furnace and then shock with cold water. Microcracks in fresh and shocked samples at 250, 450, 650, and 850 Cᵒ was investigated using macroscopic core samples, thin sections, SEM images and crack density measurements in three spatial directions perpendicular on each other. Examination of microscopic sections showed that grain in the same size and variety of boundaries cause the microcrack network not to expand. Myrmikite texture accelerates the development of transgranular microcracks. Some minerals such as mica and amphibole have a specific effect on how cracks develop so they are the beginning or ending of microcracks. Examination of microscopic thin sections showed that different type of microcracks in different samples develop in a different way, which is also affected by the absolute age of the rock. Plagioclase has the least and orthoclase has the most number of microcracks. In 250 and 450 Cᵒ thermal shocks, development of microcracks is also affected by porosity.


Alirezaei, S., Hassanzadeh, J., 2012. Geochemistry and zircon geochronology of the Permian A-type Hasanrobat granite, Sanandaj–Sirjan belt: A new record of the Gondwana break-up in Iran. Lithos 151, 122-134. https://doi.org/10.1016/j.lithos.2011.11.015
Bauer, S.J., Johnson, B., 1979. Effects of slow uniform heating on the physical properties of the Westerly and Charcoal granites. 20th US symposium on rock mechanics (USRMS). OnePetro.
Benson, P.M., Thompson, B.D., Meredith, P.G., Vinciguerra, S., Young, R.P., 2007. Imaging slow failure in triaxially deformed Etna basalt using 3D acoustic‐emission location and X‐ray computed tomography. Geophysical Research Letters 34(3). https://doi.org/10.1029/2006GL028721
Browning, J., Meredith, P., Gudmundsson, A., 2016. Cooling‐dominated cracking in thermally stressed volcanic rocks. Geophysical Research Letters 43, 8417-8425.  https://doi.org/10.1002/2016GL070532
Browning, J., Meredith, P., Mitchell, T., Daoud, A., Karaoglu, O., Oskouei, S., Bayer, O., 2021. Microstructural Controls on Thermally-Induced Crack Damage in Rocks. AGU Fall Meeting Abstracts, pp. EP54B-02. 2021AGUFMEP54B.02B https://doi.org/10.1029/2020GL088693
Den'gina, N. I., Kazak, V.N., Pristash, V.V., 1993. Changes in rocks at high temperatures. Journal of mining science 29, 472-477. https://doi.org/10.1007/BF00733026
Dwivedi, R.D., Goel, R.K., Prasad, V.V.R., Sinha, A., 2008. Thermo-mechanical properties of Indian and other granites. International Journal of Rock mechanics and mining Sciences 45, 303-315. https://doi.org/10.1016/j.ijrmms.2007.05.008
Feng, Z.J., Zhao, Y.S., Liu, D.N., 2021. Permeability evolution of thermally cracked granite with different grain sizes. Rock Mechanics and Rock Engineering 54, 1953-1967. https://doi.org/10.1007/s00603-020-02361-3
Fuchs, S., Förster, A., 2010. Rock thermal conductivity of Mesozoic geothermal aquifers in the Northeast German Basin. Geochemistry 70, 13-22. https://doi.org/10.1016/j.chemer.2010.05.010
Glover, P.W., Baud, P., Darot, M., Meredith, P., Boon, S.A., LeRavalec, M., Reuschlé, T., 1995. Alpha/beta phase transition in quartz monitored using acoustic emissions. Geophysical Journal International 120, 775-782. https://doi.org/10.1111/j.1365-246X.1995.tb01852.x
Görgülü, K., Durutürk, Y.S., Demirci, A., Poyraz, B., 2008. Influences of uniaxial stress and moisture content on the thermal conductivity of rocks. International Journal of Rock Mechanics and Mining Sciences 45, 1439-1445. https://doi.org/10.1016/j.ijrmms.2008.02.004
Guo, P., Wu, S., Zhang, G., Chu, C., 2021. Effects of thermally-induced cracks on acoustic emission characteristics of granite under tensile conditions. International Journal of Rock Mechanics and Mining Sciences 144, 104820. https://doi.org/10.1016/j.ijrmms.2021.104820
Ide, J.M., 1937. The velocity of sound in rocks and glasses as a function of temperature. The Journal of Geology 45, 689-716. https://doi.org/10.1086/624595
Hatheway, A.W., 2009. The complete ISRM suggested methods for rock characterization, testing and monitoring; 1974–2006.
Kang, F., Li, Y., 2021. Grain size heterogeneity controls strengthening to weakening of granite over high-temperature treatment. International Journal of Rock Mechanics and Mining Sciences 145, 104848. https://doi.org/10.1016/j.ijrmms.2021.104848
Liu, W., Zhu, X., Lv, Y., Tong, H., 2021. On the mechanism of thermally induced micro-cracking assisted rock cutting in hard formation. Journal of Petroleum Science and Engineering 196, 107666. https://doi.org/10.1016/j.petrol.2020.107666
Lu, C., Jackson, I., 1998. Seismic-frequency laboratory measurements of shear mode viscoelasticity in crustal rocks II: thermally stressed quartzite and granite. In Q of the Earth: Global, Regional, and Laboratory Studies 441-473. https://doi.org/10.1007/978-3-0348-8711-3_10
Meredith, P., Daoud, A., Browning, J., Mitchell, T., 2019. Microstructural controls on thermal crack damage during temperature-cycling experiments on volcanic rocks. In Geophysical Research Abstracts 21.
Mo, C., Zhao, J., Zhang, D., 2022. Real-Time Measurement of Mechanical Behaviour of Granite During Heating–Cooling Cycle: A Mineralogical Perspective. Rock Mechanics and Rock Engineering 55, 4404-4422. https://doi.org/10.1007/s00603-022-02867-y
Qin, Y., Tian, H., Xu, N.X., Chen, Y., 2020. Physical and mechanical properties of granite after high-temperature treatment. Rock Mechanics and Rock Engineering 53, 305-322. https://doi.org/10.1007/s00603-019-01919-0
Rathnaweera, T.D., Ranjith, P.G., Gu, X., Perera, M.S.A., Kumari, W.G.P., Wanniarachchi, W.A.M., Li, J.C., 2018. Experimental investigation of thermomechanical behaviour of clay-rich sandstone at extreme temperatures followed by cooling treatments. International Journal of Rock Mechanics and Mining Sciences 107, 208-223. https://doi.org/10.1016/j.ijrmms.2018.04.048
Ray, L., Chopra, N., Hiloidari, S., Naidu, N.N., Kumar, V., 2021. Thermal conductivity of granitoids of varying composition up to 300° C and implications for crustal thermal models. Geophysical Journal International 227, 316-332. https://doi.org/10.1093/gji/ggab191
Richter, D., Simmons, G., 1974. Thermal expansion behaviour of igneous rocks. In International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 11, 403-411. https://doi.org/10.1016/0148-9062(74)91111-5
Sepahi, A.A., Shahbazi, H., Siebel, W., Ranin, A., 2014. Geochronology of plutonic rocks from the Sanandaj-Sirjan zone, Iran and new zircon and titanite U-Th-Pb ages for granitoids from the Marivan pluton. Geochronometria 41, 207-215. https://doi.org/10.2478/s13386-013-0156-z
Shahbazi, H., Siebel, W., Pourmoafee, M., Ghorbani, M., Sepahi, A.A., Shang, C. K., Abedini, M.V., 2010. Geochemistry and U–Pb zircon geochronology of the Alvand plutonic complex in Sanandaj–Sirjan Zone (Iran): New evidence for Jurassic magmatism. Journal of Asian Earth Sciences 39, 668-683. https://doi.org/10.1016/j.jseaes.2010.04.014
Siegesmund, S., Snethlage, R., 2011. Stone in architecture: properties, durability. Springer Science & Business Media. https://doi.org/10.1007/978-3-642-14475-2
Simmons, G., Cooper, H.W., 1978. Thermal cycling cracks in three igneous rocks. In International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 15, 145-148. https://doi.org/10.1016/0148-9062(78)91220-2
Swanson, E., Wilson, J., Broome, S., Sussman, A., 2020. The complicated link between material properties and microfracture density for an underground explosion in granite. Journal of Geophysical Research: Solid Earth 125(11), e2020JB019894. https://doi.org/10.1029/2020JB019894
Tian, H., Kempka, T., Xu, N.X., Ziegler, M., 2012. Physical properties of sandstones after high temperature treatment. Rock mechanics and rock engineering 45, 1113-1117.  https://doi.org/10.1007/s00603-012-0228-z
Underwood, E.E. 1973. Quantitative Stereology for Microstructural Analysis. In: McCall, J.L., Mueller, W.M. (Eds) Microstructural Analysis. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8693-7_3
Wilson, J.E., Chester, J.S., Chester, F.M., 2003. Microfracture analysis of fault growth and wear processes, Punchbowl Fault, San Andreas system, California. Journal of Structural Geology 25, 1855-1873. https://doi.org/10.1016/S0191-8141(03)00036-1
Wong, L.N.Y., Zhang, Y., Wu, Z., 2020. Rock strengthening or weakening upon heating in the mild temperature range?   Engineering Geology 272, 105619. https://doi.org/10.1016/j.enggeo.2020.105619
Yang, S.Q., Ranjith, P.G., Jing, H.W., Tian, W.L., Ju, Y., 2017. An experimental investigation on thermal damage and failure mechanical behaviour of granite after exposure to different high temperature treatments. Geothermics 65, 180-197. https://doi.org/10.1016/j.geothermics.2016.09.008
Ye, X., Yu, Z., Zhang, Y., Kang, J., Wu, S., Yang, T., Gao, P., 2022. Mineral Composition Impact on the Thermal Conductivity of Granites Based on Geothermal Field Experiments in the Songliao and Gonghe Basins, China. Minerals 12, 247. https://doi.org/10.3390/min12020247