| Title |
Lap Splice Performance of Reinforcing Bar in High Performance Synthetic Fiber Reinforced Cementitious Composites |
| Authors |
Yun Hyun-Do ; Jeon Esther ; Han Byung-Chan ; Yang Il-Seung |
| Keywords |
High performance fiber reinforced cementitious composites(HPFRCCs) ; Lap splice ; Synthetic fiber ; Ductility |
| Abstract |
Experimental results on lap splice performance of high performance synthetic fiber reinforced cementitious composite(HPFRCCs) are reported. A total of 12 specimens were investigated. The variable were : bar diameter(D16, D19, D22), lap splice length(60, 120%) and fiber type(Polypropylene, polyethylene fiber). The current experimental results demonstrated clearly that the use of synthetic fibers in cementitious matrixes increases significantly the lap splice performance of reinforcing bars in tension. Using polyethylene fiber up to 1.5 percent by volume splice stress increased by up to 20.50～32.26 percent more than that of??polypropylene fiber. Also, the presence of fibers increased the number of cracks formed around the spliced bars, delayed the growth of the splitting cracks, and consequently, improved the ductility of bond failure. |