TY  - SER
AU  - Yim, Hong Jae
AU  - Park, Sun-Jong
AU  - Kim, Jae Hong
AU  - Kwak, Hyo-Gyoung
TI  - NOnlinear Ultrasonic Method to Evaluate Residual Mechanical Properties of Thermaliy Damaged Concrete
KW  - Degradation
KW  - Thermal Damage
KW  - Mechanical Properties
ER  -