| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. DOCUMENTATION VERIFICATION | |||
| A1 | Delivery docket/challan provided with complete information: date, quantity, grade, source Acceptance: Docket legible and complete; quantity matches delivery; source identified; dated | Cl. 8 — Documentation | OK NC NA HOLD |
| A2 | Grade certification provided indicating compliance with IS 383 specification Acceptance: Certificate shows aggregate grade; indicates compliance with IS 383; recent test results attached | Cl. 3 — Grade specification | OK NC NA HOLD |
| A3 | Previous lot test report available (if applicable) for comparison with current delivery Acceptance: Test report on file; same source confirmed; consistency expected; available for reference | Cl. 9 — Quality tracking | OK NC NA HOLD |
| A4 | Quantity reconciliation: invoice vs. weighbridge ticket verified Acceptance: Weighbridge ticket obtained; net quantity ≈ invoice within ±2% tolerance | Cl. 9 — Quantity verification | OK NC NA HOLD |
| B. PHYSICAL CONDITION INSPECTION | |||
| B1 | Coarse aggregate: check for proper size range without undersize or oversize material Acceptance: 20mm nominal: 10-90% within 10-20mm; 10mm nominal: majority within 5-10mm; no large stones >25mm | Cl. 5.1 — Grading requirements | OK NC NA HOLD |
| B2 | Fine aggregate (sand): appearance uniform; no excessive dust or clay coating visible Acceptance: Sand grains clean and distinct; not caked or cohesive; free-flowing consistency | Cl. 5.2 — Fine aggregate quality | OK NC NA HOLD |
| B3 | No visible deleterious materials: broken shells, coal, mica, or weak stones in aggregate Acceptance: Coal <1%; mica <3%; broken shells <2%; weak/friable stones <5%; per IS 383 Table 1 | Cl. 5.4 — Deleterious matter limits | OK NC NA HOLD |
| B4 | Aggregate color and texture consistent with expected source material Acceptance: Natural aggregates: uniform color; manufactured aggregates: consistent texture; no weathering | Cl. 5 — Physical properties | OK NC NA HOLD |
| B5 | No excessive dust, fines, or powder coating on aggregate particles Acceptance: Dust content visually <3%; particles not silt-coated; material essentially clean | Cl. 5.3 — Dust and fines | OK NC NA HOLD |
| B6 | No damp or wet material; aggregate surface dry or acceptable moisture level Acceptance: Surface dry or damp acceptable; not saturated or waterlogged; good drainage | Cl. 5.3 — Moisture condition | OK NC NA HOLD |
| C. CONTAMINANT AND FOREIGN MATTER CHECK | |||
| C1 | No foreign materials: wood, plastic, paper, or debris in aggregate mass Acceptance: Hand inspection of sample: no foreign inclusions; material pure aggregate only | Cl. 5.4 — Contamination prevention | OK NC NA HOLD |
| C2 | No odor indicating contamination with oils, chemicals, or pollutants Acceptance: Neutral odor; no petrol/diesel/chemical smell; fresh, clean aggregate scent | Cl. 5.4 — Chemical purity | OK NC NA HOLD |
| C3 | No visible salt efflorescence, rust stains, or chemical deposits on aggregate Acceptance: Particles clean; no white powder (salt); no orange stains (rust); no chemical coating | Cl. 5.4 — Contaminant-free | OK NC NA HOLD |