TryBuildCalcAggregate Estimation & Procurement Verification Checklist
🕒 Last updated: June 28, 2026
Essential Checklist+−
Complete these critical checks before approving the work or proceeding to the next construction stage.
✓13 Inspection Points
✓4 Verification Categories
✓Volume Estimation & Formula+-
- Aggregate volume calculated using mix ratio applied to dry concrete volume
- Dry volume factor of 1.54 applied to wet concrete volume before mix calculation
- Mix ratio confirmed from structural drawing or specification — not assumed
- Wastage of 5–10% added to calculated aggregate volume
- Correct bulk density used for volume-to-weight or weight-to-volume conversion
✓Aggregate Size Selection+-
- Maximum aggregate size not exceeding 1/4 of minimum member dimension
- Maximum aggregate size not exceeding 3/4 of minimum bar spacing
- 20mm aggregate specified for most structural concrete — confirmed from drawing
✓Aggregate Quality Testing+-
- Aggregate free from dust, clay coatings, and organic matter
- Aggregate impact value (AIV) within limits — below 30% for structural concrete
✓Delivery & Storage+-
- Aggregate quantity verified on delivery — weigh bridge slip matches order
- Aggregate size confirmed on delivery — 20mm or specified size, not mixed with fines
- Aggregate stockpiled on hard, clean surface — separated from fine aggregate stockpile
Full QC Checklist+−
Verification checklist for coarse aggregate quantity estimation and procurement — covering volume calculation, size selection, quality testing, delivery verification, and storage. Use the Essential Checklist for critical checks before ordering and accepting aggregate; expand to Full QC Checklist for complete material quality control.
✓22 Inspection Points
✓4 Verification Categories
✓Volume Estimation & Formula+-
- Aggregate volume calculated using mix ratio applied to dry concrete volume
- Dry volume factor of 1.54 applied to wet concrete volume before mix calculation
- Mix ratio confirmed from structural drawing or specification — not assumed
- Wastage of 5–10% added to calculated aggregate volume
- Correct bulk density used for volume-to-weight or weight-to-volume conversion
- Aggregate calculated for each concrete element separately — not one combined volume
- Calculated aggregate volume checked against reference — M20 requires approximately 0.82 m³ aggregate per m³ concrete
✓Aggregate Size Selection+-
- Maximum aggregate size not exceeding 1/4 of minimum member dimension
- Maximum aggregate size not exceeding 3/4 of minimum bar spacing
- 20mm aggregate specified for most structural concrete — confirmed from drawing
- Aggregate grading confirmed per IS 383 — single-sized or graded as specified
- Angular crushed aggregate preferred over rounded aggregate for structural concrete
✓Aggregate Quality Testing+-
- Aggregate free from dust, clay coatings, and organic matter
- Aggregate impact value (AIV) within limits — below 30% for structural concrete
- Aggregate soundness confirmed — not prone to frost or chemical attack
- Aggregate moisture content estimated — mix water adjusted if aggregate is wet
- Aggregate tested for alkali-silica reactivity (ASR) if new source is being used
✓Delivery & Storage+-
- Aggregate quantity verified on delivery — weigh bridge slip matches order
- Aggregate size confirmed on delivery — 20mm or specified size, not mixed with fines
- Aggregate stockpiled on hard, clean surface — separated from fine aggregate stockpile
- Aggregate stockpile protected from soil contamination and vehicle traffic
- Aggregate stockpile not more than 2m high — segregation avoided
Inspection Notes+-
Use the latest drawings, measured site inputs, supplier quotations, and material test information.
Complete all critical checks before ordering, accepting delivery, or approving the related work stage.
Record deviations and confirm rectification where required.
Inspection Notes
Use the latest drawings, measured site inputs, supplier quotations, and material test information.
Complete all critical checks before ordering, accepting delivery, or approving the related work stage.
Record deviations and confirm rectification where required.
Related Calculators & Guides
Aggregate CalculatorEstimate coarse aggregate quantity from concrete volume, mix ratio, density, and wastage.Aggregate Weight CalculatorConvert aggregate volume into weight, bags, truck loads, compaction, wastage, and cost.Aggregate Quantity GuideReview aggregate quantity assumptions for concrete, PCC, roadwork, drainage, and site ordering.Aggregate Sizes ChartCheck common aggregate sizes, uses, unit weight ranges, and selection guidance.