| Title |
Evaluation of Shear Behavior According to Size Effect of Reinforced Concrete Beams Using Recycled Coarse Aggregates |
| Authors |
Kim, Bong-Pil ; Shin, Woo-Cheol ; Lee, Ho-Kyung ; Baek, Seung-Min ; Kim, Woo-Suk ; Kwak, Yoon-Keun |
| DOI |
https://doi.org/10.5659/JAIK_SC.2017.33.10.3 |
| Keywords |
Recycled coarse aggregate ; Construction waste ; Replacement ratio ; Size effect ; Shear behavior |
| Abstract |
In this study, we investigated the size effect in accordance with width-to-depth ratio (1.0, 1.5, 2.0, 2.5, and 3.0) of reinforced concrete beams as well as comparison with two types of beams using natural coarse aggregates (NCAs) and recycled coarse aggregates (RCAs). As a test result, while width-to-depth ratio increased from 1.0 to 1.5, shear strengths of specimens using NCAs and RCAs mostly decreased. Also, the overall reduction ratio was similar to that of NCA specimens by 32% and RCA specimens by 31.8%. The ratio of the experimental value to the theoretical value by the design equation for shear in reinforced concrete by KBC, CEP-FIP, JSCE, and AIJ codes etc. is stable from 1.14 to 1.46. |