Studi Eksperimental Pemanfaatan Expanded Perlit sebagai Bahan Beton Ringan
Abstract
Abstract. Lightweight concrete using base material expanded perlite is one of the excavated products that can be used as building material. This study aims to determine the characteristics of lightweight concrete with various variations of concrete I (expanded perlite) and concrete II (expanded mixture of perlite and sand). Tested the characteristics of this lightweight concrete include density, shrinkage, compressive strength, absorption, and permeability, which are carried out directly in the laboratory.The test result of density meet the criteria of lightweight concrete based on the requirements of SNI 03-3449-2002 smaller than 1850 Kg/m3, obtained from all compositions for Concrete I ranging from 649.88 Kg/m3 - 705.14 Kg/m3 for Concrete II ranging from 1691.02 Kg/m3 - 1823.65 Kg/m3ÂÂ. Depreciation value is obtained bigger than normal concrete by 0.5% for Concrete I aged 14 days ranging from 0.00% - 1.00% and age 28 days ranging from 0.50% - 2.50%, for Concrete II aged 14 days ranged from 0.00% - 0.50% and 28 days ranged from 0.00% - 1.50%. The value of Compressive Strength fulfills the criteria of lightweight concrete based on the requirements of SNI 03-3449-2002 for Concrete I aged 14 days ranging from 3.88 - 5.66 MPa and the age of 28 days ranging from 4.99 to 6.10 MPa, for Concrete II aged 14 days ranged from 5.82 - 11.09 MPa and 28 days ranged from 7.21 - 17.75 MPa. Absorption values have not met the requirements in SNI 03-2914-1992 maximum of 2.5%, for Concrete I aged 14 days ranged from 16.075% - 33.115% and age 28 days ranged from 14.895% - 26.064%, for Concrete II aged 14 days ranged from 6,458 - 11.156% and 28 days ranging from 4,158 - 7,111%. The permeability value of the overall test results does not meet the requirements of SNI-03-2914-1992 where the penetration of water into the concrete does not exceed 50 mm.
Keywords: Lighweight Concrete, Expanded Perlite, Sand.
Abstrak. Beton ringan dengan memanfaatkan bahan dasar expanded perlit merupakan salah satu produk bahan galian yang dimungkinkan dapat dimanfaatkan sebagai bahan bangunan.Penelitian ini bertujuan untuk mengetahui karakteristik beton ringan dengan berbagai variasi campuran beton I (expanded perlit) dan beton II (campuran expanded perlit dan pasir). Pengujian karakteristik beton ringan ini meliputi densitas, penyusutan, kuat tekan, absorbsi, dan permeabilitas, yang dilakukan langsung di Laboratorium. Hasil pengujian densitas memenuhi kriteria beton ringan berdasarkan syarat SNI 03-3449-2002 lebih kecil dari 1850 kg/m3, didapatkan dari seluruh komposisi untuk Beton I berkisar antara 649,88 Kg/m3 – 705,14 Kg/m3 untuk Beton II berkisar antara 1691,02 Kg/m3 – 1823,65 Kg/m3. Nilai penyusutan didapatkan lebih dibesar dibandingkan beton normal sebesar 0,5 % untuk Beton I umur 14 hari berkisar 0,00 % – 1,00 % dan umur 28 hari berkisar 0,50 % – 2,50 %, untuk Beton II umur 14 hari berkisar 0,00 % – 0,50 % dan 28 hari berkisar 0,00 % – 1,50 %. Nilai Kuat Tekan memenuhi kriteria beton ringan berdasarkan syarat SNI 03-3449-2002 untuk Beton I umur 14 hari berkisar 3,88 – 5,66 Mpa dan umur 28 hari berkisar 4,99 – 6,10 Mpa, untuk Beton II umur 14 hari berkisar 5,82 – 11,09 Mpa dan 28 hari berkisar 7,21 – 17,75 Mpa. Nilai Absorbsi belum memenuhi syarat dalam SNI 03-2914-1992 maksimum sebesar 2,5 %,  untuk Beton I umur 14 hari berkisar 16,075 % – 33,115 % dan umur 28 hari berkisar 14,895 % – 26,064 %, untuk Beton II umur 14 hari berkisar 6,458 – 11,156 % dan 28 hari berkisar 4,158 – 7,111 %. Nilai permeabilitas dari keseluruhan hasil pengujian belum memenuhi syarat SNI-03-2914-1992 dimana tembusnya air kedalam beton tidak melampaui 50 mm.
Kata Kunci: Beton Ringan, Expanded Perlit, Pasir.
Keywords
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Aggarwal P.Y., Aggarwal, S.M., Gupta., 2007, “Effect Of Bottom Ash As Replacement Of Fine Aggregates In Concreteâ€, National Institute Technology, India.
Allameh Haery., Haleh., 2017, “Elastic Properties of Green Expanded Perlite Particle Compactsâ€, Journal of Powder Technology. Vol. 310. Hal : 329-342.
Anonim., 2002, “Annual Book of ASTM C-33â€, ASTM International.
Bulut, Uger., 2013, “Use of Perlite as a Pozzolanic Addition in Lime Mortarsâ€, Journal of Science. No.23 Vol.3. Hal: 305-313.
Neville, Brooks. 2008. “Concrete Technologyâ€, Longman Group, United Kingdom
DOI: http://dx.doi.org/10.29313/pertambangan.v0i0.15130
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