KAJIAN NILAI SUSUT KERING UMUR 28 HARI PADA BETON BUBUK REAKTIF DENGAN SILICA FUME 15% DAN VARIASI PASIR KUARSA

Endah Safitri, Salma Putri Kusmiwijayanti, Wibowo Wibowo

Abstract

Beton bubuk reaktif tidak menggunakan agregat kasar dalam campurannya, material berukuran mikrometer digunakan sebagai pengganti dari agregat kasar sehingga campuran beton bersifat lebih homogen dan padat. Penelitian ini bertujuan untuk mengetahui pengaruh variasi pasir kuarsa terhadap susut kering beton bubuk reaktif. Metode yang digunakan dalam penelitian ini adalah eksperimental. Rancangan campuran beton menggunakan silica fume 15% dengan variasi pasir kuarsa 0%; 15%; 20%; 25%; 30%; 35%; dan 40%. Benda uji berbentuk balok dengan dimensi 10 cm x 10 cm x 30 cm dengan jumlah benda uji 21 buah. Uji susut kering dilakukan menggunakan Demountable Mechanical Gauge 200MM selama 28 hari setelah beton berumur 1 hari. Hasil pengujian nilai susut kering setiap kadar pasir kuarsa selama 28 hari untuk variasi 0%, 15%, 20%, 25%, 30%, 35%, dan 40% masing-masing adalah 387µ, 352µ, 302µ, 252µ, 208µ, 240µ, 263µ.

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DOI: https://doi.org/10.20961/mateksi.v11i2.75237

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