Analysis of physical and mechanical behaviors and microscopic mineral characteristics of thermally damaged granite.

ABSTRACT: Temperature's influence on the physical and mechanical properties of rocks is a crucial concern for the rational design of deep rock engineering structures and the assurance of their long-term stability. To systematically comprehend the impact of the evolution of mineral composition and micro characteristics on the physical and mechanical behavior of thermally damaged granite, we observed the microscopic structural defects inside the rocks with a polarizing microscope and revealed the thermal damage mechanism of granite from a microscopic perspective by combining ultrasound detection and XRD phase characteristic analysis. The results show that the physical properties of the specimens changed significantly at three characteristic temperature points: 400 °C, 800 °C, and 1000 °C. Under high t

SUBMITTER: Peng L 

PROVIDER: S-EPMC11208172 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature