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Rock-Like Material Characterization and Engineering Properties, 2nd Edition

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 July 2026 | Viewed by 607

Special Issue Editors


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Guest Editor
Zijin School of Geology and Mining, Fuzhou University, Fuzhou, China
Interests: underground mining; deep rock mechanics; slope stability; safety engineering; paste filling; cement paste microstructure
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is a continuation of our previous Special Issue titled “Rock-Like Material Characterization and Engineering Properties”.

Rocks, minerals, and other rock-like materials are the most widely distributed tool materials in nature and human history. The composition of rock materials is complex, especially after a long period of natural progress, through which a variety of structural planes and tiny defects (cracks, cracks, pores, voids, faults, etc.) form. In recent years, as human exploration activities extends deeper into the Earth and further into the Moon, Mars, and other complex environment regions, it is necessary to fully understand the characteristics of rock-like materials and determine/predict their engineering properties before project construction, especially under extreme physical conditions such as high confining pressure, high water seepage, and extremely low or high temperatures. Novel experimental research studies, theoretical analyses, numerical simulations, and intelligent algorithms are needed to explore special material properties and apply them to slopes, tunnels, underground caverns, underground mines, and other related projects to benefit engineering design and implementation. The purpose of this Special Issue is to highlight original research articles and critical reviews in these fields.

Dr. Taoying Liu
Prof. Dr. Jianhua Hu
Guest Editors

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Keywords

  • complex geological environment
  • macro- and micro-failure mechanical properties
  • damage fracture model and failure mechanism
  • numerical calculations and theoretical analysis
  • laboratory test and engineering application

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Published Papers (1 paper)

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Research

23 pages, 6798 KB  
Article
Acoustic Emission Characteristics and Damage Evolution of Initially Damaged Limestone Under Freeze–Thaw Action
by Taoying Liu and Chang Tang
Appl. Sci. 2026, 16(4), 1988; https://doi.org/10.3390/app16041988 - 17 Feb 2026
Viewed by 308
Abstract
To investigate the effects of freeze–thaw (F-T) action on the mechanical properties, pore structure, internal progressive damage evolution laws, and failure characteristics of initially damaged limestone, intact limestone specimens were subjected to different initial damage states and numbers of F-T cycles. Subsequently, the [...] Read more.
To investigate the effects of freeze–thaw (F-T) action on the mechanical properties, pore structure, internal progressive damage evolution laws, and failure characteristics of initially damaged limestone, intact limestone specimens were subjected to different initial damage states and numbers of F-T cycles. Subsequently, the porosity and T2 spectrum distribution of the specimens were tested using nuclear magnetic resonance (NMR). Finally, uniaxial compression tests were performed while monitoring the acoustic emission system. The test results showed that, as the number of F-T cycles increased or the initial degree of damage intensified, the peak strength of the limestone decreased, and the porosity increased. The higher the number of F-T cycles of limestone, the wider the distribution range of ringing counts in the middle and later stages of loading. As the number of F-T cycles increased, the proportion of tensile cracks in the limestone interior gradually increased and became dominant. The b-value evolution curves generally showed a sudden drop in the later loading stage. The damage variable of limestone did not show regular changes with an increase in the F-T cycles. This results from the superposition of the initial damage and the F-T cycles. Full article
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