Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6712971 | Construction and Building Materials | 2018 | 7 Pages |
Abstract
The purpose of this study is to investigate the temperature effects on the bond strength between concrete and steel reinforcement bars. For two different steel bars (epoxy-coated and uncoated bars), three experimental parameters (heating rate, target temperature, and cooling condition) are examined. At a target temperature of 200â¯Â°C, the epoxy-coated rebar has much higher bond strength than the uncoated rebar. However, in the specimens exposed to target temperatures higher than 200â¯Â°C, the test results show that the epoxy coated rebar has less bond strength than the uncoated rebar. Also, the test results demonstrated that as the heating rate and target temperature increase the bond strength decreases. The cooling method does not affect the ultimate bond stress of the specimens using uncoated rebar very much but can greatly affect specimens that contained epoxy coated rebar. A more in-depth study can be considered regarding the cooling effect on the bond strength.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Jaesung Lee, Evan Sheesley, Yuxiang Jing, Yunping Xi, Kaspar Willam,