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ULASAN MENGENAI KUAT LEKATAN ANTARA NATURAL FIBER REINFORCED POLYMER (NFRP) DENGAN BETON UNTUK PERKUATAN Shafira Salsabila; Taufiq Saidi; Muttaqin Hasan
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 5, No 2 (2022): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v5i2.25546

Abstract

Retrofits and reinforcements are needed in structures that have experienced a decline in performance to continue to meet their strength requirements. Reinforcement of reinforced concrete structures can use the method of strengthening with Fiber Reinforced Polymer (FRP) which is made from synthetic fibers. But now there is a new innovation, namely FRP which is made from natural fibers. The use of natural fibers as the basis for composite materials can reduce the negative impact on the environment because the manufacturing process is environmentally friendly and renewable when compared to synthetic-based FRP. Some natural fibers that have been explored and researched consist of bamboo fiber, bagasse, hemp, abaca, and several other fibers that have high tensile strength values. The purpose of this study was to examine the characteristics of natural fibers which include tensile strength and the effect of NFRP material on structural reinforcement by externally bonding methods from various references and also to study the failure modes that occur in the test object. Furthermore, it is presented in a literature regarding the bond strength between NFRP material and concrete. There are several studies on bond strength that have been collected and seen various differences between the studies on the bond strength. Most of the composite process is the attachment of composites to the concrete surface by the hand lay-up method.
Stabilitas Lereng dengan Kombinasi Dinding Penahan Tanah (DPT) dan Tiang Pancang Berdasarkan Variasi Kedalaman Tiang Arissa Sabilla; Shafira Salsabila; Rajib Muammar; Ari Juanda; Rauzah Munauwarah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.7974

Abstract

Slope stability is an important aspect in construction planning, especially in areas with weak soil conditions and high rainfall that have the potential to trigger landslides. This study aims to analyze the effect of variations in pile depth in combination with retaining walls (DPT) on increasing slope stability. The method used is numerical analysis using Plaxis software with a Mohr-Coulomb soil model based on secondary data of geotechnical parameters. The variations in pile depth described include 12 meters, 16 meters, 19 meters, and 20 meters. The results of the analysis show that the existing slope condition has a safety factor (SF) value of 1.270 and decreases to 1.064 after being given additional loads, which indicates unstable conditions. The application of DPT and pile reinforcement can significantly increase the SF value, with values ​​of 1.540 (12 m), 1.124 (16 m), 2.354 (19 m), and 2.450 (20 m), respectively. A depth of 19 meters is determined as the optimal condition because it provides a significant and efficient increase in stability. Thus, variations in pile depth have been shown to significantly impact slope stability and can be used as a reference in designing safe and economical slope reinforcement.