Abstract
Abstract In this study, the effects of different mix proportions and fire scenarios (exposure temperatures and post-fire-curing periods) on fire-damaged concrete were analyzed using a nonlinear resonance vibration method based on nonlinear acoustics. The hysteretic nonlinearity parameter was obtained, which can sensitively reflect the damage level of fire-damaged concrete. In addition, a splitting tensile strength test was performed on each fire-damaged specimen to evaluate the residual property. Using the results, a prediction model for estimating the residual strength of fire-damaged concrete was proposed on the basis of the correlation between the hysteretic nonlinearity parameter and the ratio of splitting tensile strength. Keywords: Fire-Damaged Concrete, Mix Proportions, Nonlinear Acoustics, Post-Fire-Curing, Splitting Tensile Strength[Received: February 9, 2015, Revised: March 19, 2015, Accepted: March 24, 2015] *한국과학기술원 건설 및 환경공학과, **경북대학교 과학기술대학 건설방재공학부, ✝Corresponding Author: Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, KAIST, Daejeon 305-701, Korea (E-mail: kwakhg@kaist.ac.kr)
Sign-in/Register to access full text options 
Free) 
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 call
