Rato, Robert Agustinus Adi (2024) Pengaruh Perkuatan Pengekangan Eksternal Pada Kolom Beton Persegi Yang Sudah Dibebani Menggunakan Carbon Fiber Reinforced Polymer (CFRP) Terhadap Gaya Tekan. Undergraduate thesis, Fakultas Ilmu Sosial dan Ilmu Politik Universitas Merdeka Malang.

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Abstract

Damage to concrete can be caused by design failure, overload and poor implementation. The aim of this research is to determine the effect of strengthening external restraints on square concrete columns that have been loaded using Carbon Fiber Reinforced Polymer (CFRP) on compressive forces. The test object used was a square concrete column measuring 15 cm x 15 cm x 30 cm which was first tested for compression at the age of 28 days with a tool limit of 85% Pn. Next, external restraint reinforcement in the form of CFRP is installed. There were 30 test specimens consisting of 3 normal concrete specimens and 27 specimens with variations in restraint divided into 3 populations. The planned concrete quality is 21.9 Mpa. Concrete compression force testing is carried out using a compression machine test based on the ASTM-C39 standard. The research results of the test object with the highest average value of concrete compressive force were found in the spacing variation of 0, width 18 cm and the number of turns 4 times was 71.09 tonnes, for the smallest average value of compressive force for the test object with spacing of 2.5 cm, width 7 cm and number of windings 4 times amounting to 57.05 tons.

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