| Title |
Experimental Study on the Flexural and Lap Splice Performances Estimationof Reinforced Recycled Aggregate Concrete Beams |
| Authors |
Lee Young-Oh ; Yun Hyun-Do ; Kim Sun-Woo ; Jeon Esther ; Lim Seung-Chul |
| Keywords |
Recycled Aggregates ; Reinforced Concrete Beams ; Flexural Behavior ; Lap Splice |
| Abstract |
This paper evaluates the flexural performance of simply supported concrete beams subjected to four-point monotonic loading and made with recycled concrete aggregates. Three different concretes were produced with different percentages of recycled aggregates : Concrete made with 0% of recycled aggregate(C), concrete made with 50% of fine recycled aggregate(RH), and concrete made with 100% of recycled coarse aggregate(RL). The main parameters of the study are combination of aggregates, the amount of longitudinal steel reinforcement and lap splice of longitudinal steel rebars. The results showed that whereas the deflections and the ultimate loads were little affected by the different types of concretes, in recycled concrete beams, cracking was premature. Experimental results were compared using current codes. Flexural performances of reinforced recycled concrete aggregates beams, i.e. cracking moment, crack patterns, maximum moment, and effective inertia moment are discussed. Experimental results indicate the mechanics-based possibility of utilizing recycled concrete for reinforced concrete structures under the proper design as well as within the proper limit of application. |