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All Journal Paulus Civil Engineering Journal
Daniel Surgawi
Universitas Kristen Indonesia Paulus
Civil Engineering, Building, Construction & Architecture Transportation

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Pengaruh Sandblasting Dan Limbah Gypsum Sebagai Bahan Campuran Beton Daniel Surgawi; Frans Phengkarsa; Suryanti Rapang Tonapa
Paulus Civil Engineering Journal Vol 4 No 2 (2022): Paulus Civil Engineering Journal Volume 4 No.2
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.53 KB) | DOI: 10.52722/pcej.v4i2.452

Abstract

Normal concrete is concrete with a compressive strength value of 15-40 MPa.this study aims to find out the workability of fresh concrete with the addition of sandblasting 10% and gypsum waste variations of 0%, 2%, 4%, 6% in concrete mixtures. Samples with a cylindrical shape with dimensions of 15cm x 30cm total 12 pieces, as well as beams with dimensions of 15cm x 15cm x 60cm total of 3 pieces. In the strong press test process obtained numbers 26,020, 24,027, 23,469 and 21,161 Mpa. Testing tensile strengths of 2,712, 2,098, 1,745, and 1,462 Mpa. Tests of 4,119, 3,793, 3,585, and 3,230 MPa. Elasticity modulus testing of 22384, 20497, 20025, and 19132 MPa. The results showed that gypsum waste cannot be used as a concrete quality mixture material.
Co-Authors Frans Phengkarsa