Rumus Perhitungan Perkiraan Awal Kadar Aspal Rancangan [PDF]

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A. Rumus perhitungan perkiraan awal kadar aspal rancangan (Pb) Pb = 0,035 (%CA) + 0,045 (%FA) + 0,18 (%FF) + Konstanta Dimana :



Pb = Perkiraan kadar aspal rencana awal



CA =



Aggregat kasar, butiran aggregat > 2,36 mm



FA



= Aggregat halus, butiran aggregat < 2,36 mm dan > 200 Mesh



FF



= Bahan pengisi, butiran aggregat < 200 mesh



Konstanta =



Kira-kira 0,5 - 1 untuk laston dan 1 - 2 untuk Lataston







Perhitungan perkiraan awal kadar aspal rancangan (Pb) CA



= (100 – 40.48)% = 59.52%



FA



= (100 – 59.52 – 8.06)% = 32.42%



Ff



= 8.02%



Pb



= 0,035 (59.52%) + 0,045 (32.42%) + 0,18 (8.06%) + 1 = 2,083 + 1.459 + 1.451 + 1 = 5.993% ≈ 6%



ANALISA DAN PERHITUNGAN Perencana campuran aspal panas I.



5,5% F1. = 20%



= 226.8 g



F2. = 20%



= 226.8 g



F3. = 30%



= 340.2 g



F4.



= 340.2 g



=30%



Aspal II.



6% F1. = 20%



= 225.6 g



F2. = 20%



= 225.6 g



F3. = 30%



= 338.4 g



F4. = 30%



= 338.4 g



Aspal



III.



= 66 g



= 72 g



6,5% F1. = 20%



= 224.4g



F2. = 20 %



= 224.4 g



F3. = 30%



= 336.6 g



F4. = 30%



= 336.6 g



Aspal



= 78 g