Abstract
Similar rock specimens without microcapsules were prepared on the basis of similarity principle, and uniaxial compression tests were carried out to obtain the general law of rock fracture propagation. Microcapsules were mixed into rock specimens in three ways. The first way is uniform mixing. The second method is to add microcapsules at different levels. The third way is to add microcapsules along the crack propagation angle. The uniaxial preloading tests were carried out to obtain the compressive strength of the microcapsules. After the curing of 7d and 14d, three specimens were subjected to compressive test again and the strength recovery rate was calculated. Draw the following conclusions: after pre-compression repair, the compressive strength increases, indicating that microcapsules play a repair role; adding microcapsules along the average angle of crack propagation is the best way to repair the crack; the stress-strain curves show good elastic-plastic, the pressure relief curve is stable, and the residual strength is stable.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
