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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.
REVIEW MENGENAI PENINGKATAN KUAT TEKAN BETON YANG TERKEKANG SECARA SEMPURNA DENGAN EKSTERNAL NATURAL FIBER REINFORCED POLYMER (NFRP) Nazira Suha Al Bakri; Taufiq Saidi; Muttaqin Muttaqin
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.v5i2.25614

Abstract

Structural strengthening is needed in buildings that experience a decrease in serviceability, inappropriate quality of existing concrete, and unexpected natural events such as earthquakes. One method that has been widely used for structural strengthening is external restraint using synthetic Fiber Reinforced Polymer (FRP). External restraints on concrete can significantly increase the strength and ductility of concrete. The use of Fiber Reinforced Polymer (FRP) material requires a relatively expensive cost and a production process that is not environmentally friendly, so alternative Natural Fiber Reinforced Polymer (NFRP) materials are needed that are environmentally friendly, renewable, and relatively cheaper, such as jute, hemp, cotton, abaca and basalt. This research review aims to determine the behavior of confined concrete with external Natural Fiber Reinforced Polymer (NFRP) and the increase in compressive strength due to confinement. The test is carried out by providing an axial load on the concrete test object which is restrained by NFRP. NFRP restrained specimens are made by wrapping the entire concrete in a circle using natural fibers and adhesives. The results obtained from this research review are the compressive strength of confined concrete using several types of natural fibers such as jute, hemp, cotton, abaca and basalt, it is found that the type of fiber and the number of layers of NFRP affect its compressive strength. NFRP showed a significant restraining effect on increasing the compressive strength and increasing the ductility of the concrete. The increase in strength and ductility will increase with an increase in the number of layers of Natural Fiber Reinforced Polymer (NFRP).