In this paper, internal thermal stresses of the cementitious matrix were evaluated by incorporating polypropylene fibers. By using the temperature heating method specified in KS F 2257-1, the temperatures by a depth were measured. Thermal stress was calculated based on Kodur's thermal stress formula. Different thermal stress behaviors were observed depending on amount of PP fiber. Thas, it will become fundamental data to analyze the thermal stresses behavior of structure members subjected to higher temperature.

• 문광균(충북대학교 토목공학과, 석사과정) | Moon, Kwang Kyun
• 홍기남(충북대학교 토목공학과 교수, 공학박사) | Hong, Ki Nam Corresponding author