Study on energy evolution and crack propagation of filling mortar-rock at different loading rates

• Published in: PloS one Vol. 20; no. 7; p. e0327902
• Main Authors: Wang, Hanqiu, Liu, Chengyong, Wu, Yuyi, Guan, Yuhua, Zhao, Tongde
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 29.07.2025; Public Library of Science (PLoS)
• Subjects: Analysis; Biology and Life Sciences; Composite materials; Concrete; Construction Materials; Crack initiation; Crack propagation; Cracking (fracturing); Damage assessment; Energy; Epoxy resins; Evolution; Excavation; Geotechnical engineering; Geotechnology; Interfaces; Load distribution; Loading rate; Materials Testing; Mechanical properties; Mortar; Parameters; Physical Sciences; Propagation; Residual stress; Rock masses; Rock mechanics; Rocks; Shear tests; Slope protection; Sprayed concrete; Stone; Stress distribution; Stress propagation; Stress, Mechanical; Stress-strain curves; Tensile Strength; Tensile stress; Trends; Uniaxial tests; China

Shotcrete, as a highly efficient reinforcement material widely used in geotechnical engineering, demonstrates irreplaceable advantages in projects such as tunnel excavation, mine roadway support, and slope protection. However, when shotcrete becomes tightly bonded with rock masses, the energy evolut...