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Plan · QC-ROD-PLN-001
Road Works Inspection & Test Plan (ITP)
36 checkpoints across 8 sections. Planning phase before road work; defines quality gates and testing schedule for all phases
36 Checkpoints
8 Sections
Once per project section; updated if scope/schedule changes significantly
QC Engineer, Project Manager
SP 20:2002

Checklist Preview

S.No.CheckpointIS RequirementStatus
1. SUBGRADE & EARTHWORK INSPECTION
1.1Subgrade excavation complete; profile matches design ±50mm
Acceptance: Profile survey at 100m intervals; visual inspection; photographic record; inspector witness required		Cl. 401 — Excavation completion
1.2Subgrade compaction: Density ≥95% MDD achieved at 5 locations per km
Acceptance: Core/sand replacement tests; CBR ≥2%; hold point until approved; re-compaction if failed		Cl. 401 — Compaction verification
1.3Subgrade approval: Formal sign-off issued; layer ready for base course placement
Acceptance: Completion certificate signed by QC engineer; all tests passed; conditions noted; witness point		Cl. 401 — Approval gate
2. BASE COURSE (WBM/WMM/GSB) INSPECTION
2.1Base course material: Aggregate source approved; test certs (LA, impact, grading) available
Acceptance: Source audit; test certificates <12 months old; witness point for first load acceptance		Cl. 401 — Material approval
2.2Material spreading: Layer thickness 150-200mm; uniform distribution; no segregation
Acceptance: Thickness checks at 50m intervals; visual inspection; witness point for 1st 500m; photo record		Cl. 401 — Layer control
2.3Base course compaction: Density ≥98% SP (WBM/WMM) or ≥95% SP (GSB); 1 test per 250m²
Acceptance: Core cutter tests; hold point until density approved; 95% pass rate minimum; re-compact sections <spec		Cl. 401 — Density verification
2.4Base course CBR: CBR ≥30% (WBM base) or ≥20% (sub-base); 1 test per 2km
Acceptance: Lab CBR test; result recorded; affects bituminous layer thickness; hold point for design approval		Cl. 401 — Bearing capacity
2.5Base course approval: Completion certificate issued; all tests passed; ready for bituminous overlay
Acceptance: Written approval from QC engineer; dated; signed; witness point for handover to paving crew		Cl. 401 — Phase approval
3. MIX DESIGN & PLANT SETUP
3.1Mix design submitted: JMF, Marshall test, trial batch results, QA plan
Acceptance: JMF approved by engineer; Marshall stability ≥1800 kg, flow 2-4 mm, VIM 3-5%; hold point before production		Cl. 503 — Design submission
3.2Batch plant calibration: Scales certified ±2%; temperature control verified; documentation available
Acceptance: Scale cert current; hot bin temps recorded; plant warm-up log; witness point for plant inspection		Cl. 503 — Equipment qualification
3.3Bitumen approval: Grade, penetration, softening point, ductility tests passed
Acceptance: Test certs reviewed; grade confirmed; hold point until approved; first truck witnessed at plant		Cl. 501 — Binder approval
3.4Paver & roller inspection: Equipment certified; operators trained; trial laying on test strip
Acceptance: Equipment inspection checklist; maintenance records; operator certs; 100m trial strip reviewed		Cl. 503 — Equipment readiness
Showing 12 of 36 checkpoints ·
1. SUBGRADE & EARTHWORK INSPECTION
1.1Subgrade excavation complete; profile matches design ±50mm
Cl. 401 — Excavation completion (SP 20)
✓ Profile survey at 100m intervals; visual inspection; photographic record; inspector witness required
1.2Subgrade compaction: Density ≥95% MDD achieved at 5 locations per km
Cl. 401 — Compaction verification (SP 20)
✓ Core/sand replacement tests; CBR ≥2%; hold point until approved; re-compaction if failed
1.3Subgrade approval: Formal sign-off issued; layer ready for base course placement
Cl. 401 — Approval gate (SP 20)
✓ Completion certificate signed by QC engineer; all tests passed; conditions noted; witness point
2. BASE COURSE (WBM/WMM/GSB) INSPECTION
2.1Base course material: Aggregate source approved; test certs (LA, impact, grading) available
Cl. 401 — Material approval (SP 20)
✓ Source audit; test certificates <12 months old; witness point for first load acceptance
2.2Material spreading: Layer thickness 150-200mm; uniform distribution; no segregation
Cl. 401 — Layer control (SP 20)
✓ Thickness checks at 50m intervals; visual inspection; witness point for 1st 500m; photo record
2.3Base course compaction: Density ≥98% SP (WBM/WMM) or ≥95% SP (GSB); 1 test per 250m²
Cl. 401 — Density verification (SP 20)
✓ Core cutter tests; hold point until density approved; 95% pass rate minimum; re-compact sections <spec
2.4Base course CBR: CBR ≥30% (WBM base) or ≥20% (sub-base); 1 test per 2km
Cl. 401 — Bearing capacity (SP 20)
✓ Lab CBR test; result recorded; affects bituminous layer thickness; hold point for design approval
2.5Base course approval: Completion certificate issued; all tests passed; ready for bituminous overlay
Cl. 401 — Phase approval (SP 20)
✓ Written approval from QC engineer; dated; signed; witness point for handover to paving crew
3. MIX DESIGN & PLANT SETUP
3.1Mix design submitted: JMF, Marshall test, trial batch results, QA plan
Cl. 503 — Design submission (SP 20)
✓ JMF approved by engineer; Marshall stability ≥1800 kg, flow 2-4 mm, VIM 3-5%; hold point before production
3.2Batch plant calibration: Scales certified ±2%; temperature control verified; documentation available
Cl. 503 — Equipment qualification (SP 20)
✓ Scale cert current; hot bin temps recorded; plant warm-up log; witness point for plant inspection
3.3Bitumen approval: Grade, penetration, softening point, ductility tests passed
Cl. 501 — Binder approval (IS 73)
✓ Test certs reviewed; grade confirmed; hold point until approved; first truck witnessed at plant
3.4Paver & roller inspection: Equipment certified; operators trained; trial laying on test strip
Cl. 503 — Equipment readiness (SP 20)
✓ Equipment inspection checklist; maintenance records; operator certs; 100m trial strip reviewed
Showing 12 of 36 ·
Inspection Sign-Off
APPROVED
APPROVED WITH CONDITIONS
HOLD — ACTION REQUIRED
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