kebutuhan material

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Kebutuhan Material

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  • A. Dasar Perhitungan Menurut SNI 03-6825-2002

    1. Untuk pembuatan 6 benda uji mortar (5 cm x 5 cm x 5 cm) diperlukan:

    Semen = 500 gram

    Pasir = 1375 gram

    Air = 242 ml

    B. Perhitungan Kebutuhan Material Benda Uji Mortar

    1. Ketentuan Campuran (1 PC : 4 PS : 0.4 Air)

    Semen = 1

    Pasir = 4

    Air = 0.4

    2. Perhitungan Kebutuhan Material Per Benda Uji (1 PC : 4 PS : 0.4 Air)

    Semen = 1 x 500 + 1375

    1 + 4

    = 1 x 1875

    5

    = 375 gram

    = 375

    6

    = 62.5 gram

    Pasir = 4 x 500 + 1375

    1 + 4

    = 4 x 1875

    5

    = 1500 gram

    = 1500

    6

    = 250 gram

    Air = 0.4 x Semen

    = 0.4 x 62.5

    = 25 ml

    3. Jumlah Total Benda Uji Mortar

    " 6 Benda Uji "

    " 1 Benda Uji "

    " 6 Benda Uji "

    " 1 Benda Uji "

    " 1 Benda Uji "

  • 4. Perhitungan Kebutuhan Material Secara Keseluruhan

    M - A = M - B = M - C = M - D = M - E

    Semen = Jumlah x Semen

    = 3 x 62.5

    = 187.5 gram

    Pasir = Jumlah x Pasir

    = 3 x 250

    = 750 gram

    Air = Jumlah x Air

    = 3 x 25

    = 75 ml

    Kebutuhan Secara Keseluruhan

    Semen = Variasi x Kebutuhan

    = 5 x 187.5

    = 937.5 gram

    Pasir = Variasi x Kebutuhan

    = 5 x 750

    = 3750 gram

    Air = Variasi x Kebutuhan

    = 5 x 75

    = 375 ml

    5. Rekapitulasi Kebutuhan Material Secara Keseluruhan

  • C. Perhitungan Kebutuhan Material Benda Uji Pasangan Batako

    1. Benda Uji Pasangan Batako

    2. Jumlah Total Benda Uji Pasangan Batako

    3. Perhitungan Kebutuhan Material Pasangan Batako Berdasarkan Perbandingan Volume (Per Benda Uji)

    Mortar

    Volume = 5 x 5 x 5 x 1

    = 125 cm3

    Semen = 62.5 gram

    Pasir = 250 gram

    Air = 25 gram

    Pasangan Batako

    Volume = 40 x 20 x 2 x 6

    = 9600 cm3

    Semen = ? gram

    Pasir = ? gram

    Air = ? gram

  • Rumus Perbandingan

    125 cm3 = 62.5 gram

    9600 cm3 ? gram

    ? = 9600 x 62.5

    125

    = 4800 gram

    = 4.8 kg

    Kebutuhan Material Per Benda Uji

    Semen = 4.8 kg

    Pasir = 4 x 4.8 = 19.2 kg

    Air = 0.4 x 4.8 = 1.92 liter

    4. Perhitungan Kebutuhan Material Secara Keseluruhan

    PB - A = PB - B = PB - C = PB - D

    Semen = Jumlah x Semen

    = 3 x 4.8

    = 14.4 kg

    Pasir = Jumlah x Pasir

    = 3 x 19.2

    = 57.6 kg

    Air = Jumlah x Air

    = 3 x 1.92

    = 5.76 liter

    Kebutuhan Secara Keseluruhan

    Semen = Variasi x Kebutuhan

    = 4 x 14.4

    = 57.6 kg

    Pasir = Variasi x Kebutuhan

    = 4 x 57.6

    = 230.4 kg

    Air = Variasi x Kebutuhan

    = 4 x 5.76

    = 23.04 liter

    =Volume Mortar

    Volume Pasangan Batako

    Semen Mortar

    Semen Pasangan Batako

  • 5. Rekapitulasi Kebutuhan Material Secara Keseluruhan