Year-end Sale % OFF 
Abstract
In order to investigate the effect of high temperature (25–800°C) on mechanical properties of concrete, uniaxial compression test is carried out to study the relationship between compressive strength and temperature, and the crack development in concrete specimen is monitored based on the acoustic emission (AE) phenomenon to reflect the change of internal cracks of concrete specimen under load. The test results show that the compressive strength of concrete is not obvious when the temperature is below 400°C, but decreases with the increase of temperature and to 20% of that at room temperature when the temperature reaches 800°C. The AE activity in the whole loading process and the cumulative counts and AE energy increase sharply to the critical point C until the specimens are completely damaged. The higher the temperature is, the more seriously the specimens are damaged and the less the acoustic emission signal is generated at the dynamic loading stage.
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 callDisclaimer: 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.
