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Test-report · QC-ROD-TST-003
Road Core Test Report
20 checkpoints across 7 sections. For pavement layer verification during construction; density/thickness compliance check
20 Checkpoints
7 Sections
1 test per 250-500m²; per pavement layer; minimum 3 cores per section
Testing Laboratory, QC Engineer
IS 2720:1973SP 20:2002ASTM D2726:2017

Checklist Preview

S.No.CheckpointIS RequirementStatus
A. CORE EXTRACTION & VISUAL INSPECTION
A1Core extracted perpendicular to pavement surface; diameter 100mm standard
Acceptance: Diamond bit drilling; perpendicular to surface; 100mm dia standard; clean extraction		Cl. 503 — Extraction method
A2Core visually inspected for layer separation, cracks, segregation, or contamination
Acceptance: Layers bonded without gaps; no cracks >2mm; uniform material distribution; documented with photos		Cl. 503 — Visual assessment
A3Individual layer thicknesses measured with precision ruler; recorded to 0.5mm
Acceptance: Each layer thickness ±2mm; total thickness recorded; compared to design		Cl. 503 — Thickness measurement
B. BULK DENSITY TESTING
B1Core saturated surface dry (SSD) condition achieved; core soaked in water 4-24 hours
Acceptance: Core submerged in water tank at 20-25°C; 4-24 hour soak; surface dried with cloth		Cl. 503 — Sample preparation
B2Core mass measured in SSD condition and dry condition (after oven drying at 110°C)
Acceptance: SSD mass recorded to ±1g; dry mass after oven drying 24 hrs at 110°C ±5°C		Cl. 503 — Mass measurement
B3Bulk density calculated: Bulk Density (kg/m³) = Dry Mass / Volume
Acceptance: Volume measured by displacement or caliper; density ±20 kg/m³ precision		Cl. 503 — Density calculation
B4Bulk density compared to Marshall density and field requirement (≥98% Marshall)
Acceptance: Field density ≥98% Marshall; if <98%, section flagged for re-compaction		Cl. 503 — Density compliance
C. LAYER THICKNESS VERIFICATION
C1Measured layer thickness compared to design specification; tolerance ±10mm (or ±5%)
Acceptance: Design ±10mm acceptable; <90% design requires material addition; >110% acceptable		Cl. 503 — Thickness compliance
C2Total pavement thickness (all layers) verified; thickness variation recorded
Acceptance: All layers combined match design ±5% variation allowed across 100m section		Cl. 503 — Total thickness
Showing 9 of 20 checkpoints ·
A. CORE EXTRACTION & VISUAL INSPECTION
A1Core extracted perpendicular to pavement surface; diameter 100mm standard
Cl. 503 — Extraction method (SP 20)
✓ Diamond bit drilling; perpendicular to surface; 100mm dia standard; clean extraction
A2Core visually inspected for layer separation, cracks, segregation, or contamination
Cl. 503 — Visual assessment (SP 20)
✓ Layers bonded without gaps; no cracks >2mm; uniform material distribution; documented with photos
A3Individual layer thicknesses measured with precision ruler; recorded to 0.5mm
Cl. 503 — Thickness measurement (SP 20)
✓ Each layer thickness ±2mm; total thickness recorded; compared to design
B. BULK DENSITY TESTING
B1Core saturated surface dry (SSD) condition achieved; core soaked in water 4-24 hours
Cl. 503 — Sample preparation (ASTM D2726)
✓ Core submerged in water tank at 20-25°C; 4-24 hour soak; surface dried with cloth
B2Core mass measured in SSD condition and dry condition (after oven drying at 110°C)
Cl. 503 — Mass measurement (ASTM D2726)
✓ SSD mass recorded to ±1g; dry mass after oven drying 24 hrs at 110°C ±5°C
B3Bulk density calculated: Bulk Density (kg/m³) = Dry Mass / Volume
Cl. 503 — Density calculation (ASTM D2726)
✓ Volume measured by displacement or caliper; density ±20 kg/m³ precision
B4Bulk density compared to Marshall density and field requirement (≥98% Marshall)
Cl. 503 — Density compliance (SP 20)
✓ Field density ≥98% Marshall; if <98%, section flagged for re-compaction
C. LAYER THICKNESS VERIFICATION
C1Measured layer thickness compared to design specification; tolerance ±10mm (or ±5%)
Cl. 503 — Thickness compliance (SP 20)
✓ Design ±10mm acceptable; <90% design requires material addition; >110% acceptable
C2Total pavement thickness (all layers) verified; thickness variation recorded
Cl. 503 — Total thickness (SP 20)
✓ All layers combined match design ±5% variation allowed across 100m section
Showing 9 of 20 ·
Inspection Sign-Off
APPROVED
APPROVED WITH CONDITIONS
REJECTED — RE-COMPACT REQUIRED
Test Conducted By
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Related Templates — Roads & Pavement