Building material & construction lab.
About BMCL
Smart Construction Technology Center
Kim, G., Choe, G., Yoon, M., & Lee, T. (2015). Mechanical properties of light weight concrete at elevated temperature. International Journal of Precision Engineering and Manufacturing, 16(8), 1867-1874. | |||||
작성자 | 관리자 | ||||
---|---|---|---|---|---|
조회수 | 160 | 등록일 | 2015.07.01 | ||
주저자 | Gyu-Yong Kim | ||||
교신저자 | 042-821-7731 | ||||
공동저자 | Gyeong-Cheol Choe, Min-Ho Yoon, Tae-Gyu Lee | ||||
학술지명 | International Journal of Precision Engineering and Manufacturing July 2015, Volume 16, Number 8, pp.1867-1874 | ||||
AbstractThis study provides an experimental investigation on the mechanical properties of concrete with thermal expansion at elevated temperatures. To understand the mechanical properties at elevated temperature, normal and light weight concrete of 60 MPa grade was exposed to temperature range 20 (room temperature) to 700ºC under 0.0 fcu (compressive strength of concrete at room temperature, fcu), 0.2 fcu, 0.4 fcu load conditions and compressive strength, elastic modulus, thermal strain and creep at target temperature were inspected. Experimental results show that light weight concrete has higher compressive strength, although the strength of normal weight concrete degenerated more sharply than the light weight concrete at elevated temperature. Moreover, the thermal strain (0.0 fcu, unstressed) and total strain (0.2 and 0.4 fcu, stressed) of normal weight concrete was higher than that of light weight concrete. The result of creep test was shown similar tendency between normal weight concrete and light weight concrete less than 300ºC. Matrix damage induced by the thermal expansion of the aggregate significantly influenced on the mechanical properties degradation of concrete at high temperature. |