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Concrete Block Fill
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webs
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ends
blocks
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Concrete Block Fill Formula
Internal Web Volume = (Internal Web Length × Internal Web Thickness × Internal Web Height × Number of Internal Webs) ÷ 1,000,000,000
Notched End Volume = (Notched End Length × Notched End Thickness × Notched End Height × Number of Notched Ends) ÷ 1,000,000,000
Total Volume per Block = Internal Web Volume + Notched End Volume
Total Volume for All Blocks = Total Volume per Block × Number of Blocks
Spillage Allowance = Total Volume for All Blocks × (1 + Spillage% ÷ 100)
Required Concrete (Rule of Thumb) = (Number of Blocks ÷ 100) × 0.6
Notched End Volume = (Notched End Length × Notched End Thickness × Notched End Height × Number of Notched Ends) ÷ 1,000,000,000
Total Volume per Block = Internal Web Volume + Notched End Volume
Total Volume for All Blocks = Total Volume per Block × Number of Blocks
Spillage Allowance = Total Volume for All Blocks × (1 + Spillage% ÷ 100)
Required Concrete (Rule of Thumb) = (Number of Blocks ÷ 100) × 0.6
Note: Measure the inside dimensions of the block cavities. Subtract shell and web thicknesses from the overall block dimensions to get accurate inside measurements. It's recommended to add 5-10% extra concrete to account for spillage and minor measurement variations.