Bitumen Quantity

MPM Bitumen Calculator (75 mm Modified Penetration Macadam)

Input volumes of metals (in m³) 25–40 mm metal (m³): 12 mm metal (m³): 10 mm metal (m³): 6 mm metal (m³):

Select item type (layer and sub-base type) A — MPM over BT (100% Crusher Broken) B — MPM over BT (30% Crusher / 70% Hand Broken) C — MPM over WBM (100% Crusher Broken) D — MPM over WBM (30% Crusher / 70% Hand Broken) Override crusher / hand split for B & D (percent crushed, default 30): Bitumen density (optional) — used only for informational conversion to litres (kg/L):

Notes: This tool assumes the per m² consumption values you provided for 75 mm MPM layers. Calculation method: total metal volume (sum of size fractions) is split into crushed & hand-broken portions (depending on item). Area covered = metal_volume_for_type ÷ metal_consumption (m³/m²). Bitumen required = area × bitumen rate (MT/m²). If an item includes both crushed & hand-broken (B & D), area is computed from each portion and summed.