Pengaruh Penambahan RD 31 pada Beton dengan Substitusi Ground Granulated Blast Furnance Slag

ABSTRAKJauhnya lokasi batching plant dengan tempat penuangan kerapkali membuat beton setting sehingga dibutuhkan bahan tambah retarder. Ground Granulated Blast Furnace Slag (GGBFS) memiliki komposisi kimia mirip semen. Oleh karena itu, dilakukan penelitian penambahan retarder pada substitusi GGBFS sebagai pengganti sebagian semen untuk mengetahui pengaruh (dengan uji regresi SPSS), sifat fisik dan mekanik beton, serta mendapatkan kadar optimum Metode ini menggunakan metode eksperimental variasi campuran 90% semen, 10% 0%, 0,2%, 0,4%, 0,6% berat fas 0,5 sesuai SNI 03-2834-2000. Hasil menunjukkan 0,2% - mampu meningkatkan kuat tekan sebesar 19,61 50,59%. Berdasarkan hasil diperoleh paling baik.Kata kunci: GGBFS, tekan, ABSTRACTLong distance between to the pouring area often causes concrete undergo a setting, so that addition material is needed. which has chemical composition similar cement. Therefore, research was conducted on with substitution as partial cement substitute obtain effect (regression analysis method in physical and mechanical properties of concrete, level addition. This used an experimental mixture variation cement, percentage follows; 0.2%, 0.4%, 0.6% weight water/cement 0.5 according The results 0.2% were able increase compressive strength by 19.61 50.59%. Based results, at it best properties.Keywords: strength,