44 Papers
28 Citations
Qiang Sun is an academic researcher from Xi'an University of Science and Technology. The author has contributed to research in topics: Water content & Ultimate tensile strength. The author has an hindex of 7, co-authored 41 publications. Previous affiliations of Qiang Sun include China University of Mining and Technology.
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Papers
Variation of mechanical properties of granite after high-temperature treatment
Jianjun Hu,Qiang Sun,Xiaohua Pan +2 more
TL;DR: In this article, the authors analyzed the mechanical properties of granite as a function of temperature and found that the tensile strength and fracture toughness tend to decrease with temperature, while variations in the compressive strength and elastic modulus demonstrated decreasing trends when the heating temperature exceeded 400°C.
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Effect of high temperature on mode-I fracture toughness of granite subjected to liquid nitrogen cooling
TL;DR: In this paper, the Cracked Straight Through Brazilian Disc (CSTBD) sample was heat-treated at different temperatures to study the mode-I fracture toughness of granite after rapid cooling by LN2.
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Effects of high-temperature thermal treatment on the porosity of red sandstone: an NMR analysis
TL;DR: In this paper, the authors used NMR and polarizing light microscopy to detect pore structure characteristics of red sandstone, and then, the pore situation can be obtained, and finally, the influence of temperature on the porosity and internal grain structure do not change significantly.
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Linking the mechanical properties of frozen sandstone to phase composition of pore water measured by LF-NMR at subzero temperatures
TL;DR: In this paper, the phase composition of pore water and its effect on the strength and tensile strength of frozen sandstone at subzero temperatures was investigated. And the results showed that subzero temperature strengthened saturated sandstone significantly, both the strengths increased in a three-stage mode and each stage showed an approximately linear trend as temperature decreased from 0 to 20 °C.
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Effects of water content and salt content on electrical resistivity of loess
TL;DR: In this article, the influence of water content and salt content on the conductivity properties of loess was analyzed using the electrical resistivity obtained by LCR digital bridge tester.
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