Izza, Rohmatul (2023) Pengaruh Kadar Serat Kawat Galvanis terhadap Kuat Tekan dan Kuat Tarik Belah Beton Mutu Tinggi dengan Filler Batu Apung. Undergraduate thesis, Fakultas Teknik Universitas Merdeka Malang.

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Abstract

Concrete is weak against tensile forces. So, innovations such as the addition of fibers to concrete are needed to compensate for its weakness. One that can be used is fiber from galvanized wire. Galvanized wire with a diameter of 0.2 cm cut into 12 cm pieces was added to a mixture of high-strength concrete with a facade of 0.26 with galvanized wire fiber content of 0%, 4%, 6%, 8% and 10% by weight of cement. Pumice filler was added at 10% by weight of cement. The planned compressive strength is 50 MPa. The cylindrical specimens were 35 pieces. Testing compressive strength and split tensile strength is done when the concrete is 28 days old. From the analysis and calculation of the compressive strength of concrete with 0%, 4%, 6%, 8% and 10% fiber content respectively are 53.10, 56.34, 58.78, 62.89, and 60.24 (MPa) and the split tensile strength value obtained 5.31, 6.72, 6.87, 7.2, and 6.64 (MPa). The addition of 8% galvanized wire fiber content obtained the highest compressive strength and split tensile strength values with an increase of 9.79 MPa and 1.89 MPa respectively from concrete specimens without galvanized wire fiber.

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