Pengaruh Arah Serat Carbon Fiber Reinforced Polymer Terhadap Kuat Tekan Beton Normal Menggunakan Material Lokal Pasir Samboja di Wilayah Kalimantan Timur

Abstract

The necessity of the high strength concrete will appear in the future in many big construction projects in Balikpapan. This condition is not supported by the cost to send the material from other places. Local material, Samboja sand, is proved that it has a high strength [1]. CFRP was implemented as a core concrete reinforcement and to hold up cracking, furthermore, as an external confinement, CFRP is also able to increase concrete strength by 61.18% [2]. However, the application of difference fiber trajectory has not been studied. This research aims to get the concrete strength of the concrete that use local material Samboja Sand, and CFRP as external confinement with variation of its width and trajectory. There were 6 variations and 27 samples used in this research. The result of this study is that the effect of CFRP width for each of the fiber direction compared to normal concrete are-2,57%, 3,71%, 6,86%, 13,14%, 20,48%, and 26,76% for the V2, V3, V5, H2, H3, and H5 samples respectively.