QA/QC Checklist for Concrete Work — Free Download (IS 456)
Quality control in concrete construction is not optional — it's the difference between a structure that performs for 100 years and one that shows distress in 10. Yet on most Indian construction sites, QC is reactive rather than proactive: problems are discovered during or after the pour, when the cost of correction is 10× higher than prevention.
This article provides a complete set of ready-to-use QA/QC checklists and test report formats for concrete work, all mapped to specific IS code clauses. Download them as Excel or PDF, fill in your project details, and use them on site from day one.
All templates below are free to download — no signup required. Each template includes IS code clause references, acceptance criteria, and sign-off sections. Available as Excel (fillable) and PDF (printable).
The 3 Stages of Concrete Quality Control
Effective concrete QC follows the construction sequence: what you check before, during, and after the pour. Each stage has a dedicated checklist because the checkpoints are entirely different.
| Stage | When | What You Check | Download |
|---|---|---|---|
| Pre-Pour | Hours before concrete placement | Formwork, reinforcement, embedded items, readiness | Pre-Pour Checklist ↓ |
| During Pour | Continuous during concrete placement | Slump test, compaction, cube sampling, layer thickness | During-Pour Checklist ↓ |
| Post-Pour | After pour completion through curing | Curing, formwork removal, surface defects, remedial | Post-Pour Checklist ↓ |
Pre-Pour Inspection Checklist
The pre-pour checklist is the final gate before concrete placement. It must be signed off by the QC Engineer before the first truck arrives. Every item has a pass/fail status — a single "HOLD" on a critical checkpoint stops the pour until resolved.
Key Checkpoints (30 items across 5 sections)
| Section | Key Checks | IS Code Reference |
|---|---|---|
| A. Formwork & Shuttering | Cleaned & oiled, dimensions ±5mm, propping stable, joints sealed, camber provided | IS 456 Cl. 11.1, 11.3, 11.5 |
| B. Reinforcement | Grade/diameter verified, cover per Table 16, bar spacing, lap length (Cl. 26.2.5), MTC available, bars clean | IS 456 Cl. 26.3, 26.4; IS 1786 |
| C. Embedded Items | Electrical conduits, plumbing sleeves, anchor bolts, block-outs positioned per drawings | As per MEP/structural drawings |
| D. Pre-Pour Readiness | Approved mix design on site (IS 10262), W/C ratio verified (Table 5), aggregates tested (IS 383), cube moulds ready, slump cone ready, vibrators checked | IS 456 Cl. 7.1, 13.2; IS 10262; IS 383 |
| E. Safety | Scaffolding inspected (IS 3696), PPE, housekeeping, work permit | IS 3696; IS 9668 |
Download Pre-Pour Checklist → — 30 checkpoints, IS code clause references, status boxes, sign-off section. Available as Excel and PDF.
During-Pour Inspection Checklist
The during-pour checklist ensures continuous quality monitoring throughout concrete placement. The QC engineer must be physically present for the entire pour duration.
Critical Monitoring Points
| Check | Frequency | Acceptance Criteria | IS Code |
|---|---|---|---|
| Slump test | Every truck or every 5m³ | Specified ± 25mm | IS 1199, IS 7320 |
| Concrete temperature | Every truck in hot weather | Max 30°C at placement | IS 7861 |
| Layer thickness | Continuous | Max 300-450mm per layer | IS 456 Cl. 13.3 |
| Vibration | Every pour location | Until air bubbles stop, no over-vibration | IS 456 Cl. 13.2 |
| Cube casting | Min 1 set (3 cubes) per 50m³ | 150mm moulds, IS 516 procedure | IS 456 Cl. 15.2.2 |
| Free fall height | Continuous | Max 1.5m without tremie/chute | IS 456 Cl. 13.3 |
| Time since batching | Every truck | Max 2 hours from water addition | IS 9844 |
Download During-Pour Checklist → — Real-time monitoring format with truck-wise slump recording.
Test Report Formats
Every concrete pour generates test data that must be documented. Here are the standard test report formats:
| Test | IS Standard | Purpose | Download |
|---|---|---|---|
| Cube Compression Test | IS 516 | 7-day and 28-day compressive strength | Cube Test Report ↓ |
| Slump / Workability Test | IS 1199 | Workability verification at site | Slump Test Report ↓ |
| UPV Test | IS 13311 Part 1 | Non-destructive quality assessment | UPV Report ↓ |
| Rebound Hammer Test | IS 13311 Part 2 | Non-destructive strength estimation | Rebound Hammer Report ↓ |
Concrete Cube Test — Acceptance Criteria (IS 456)
The cube compression test is the ultimate judge of concrete quality. IS 456 Clause 16 defines acceptance criteria that every QC engineer must know by heart:
| Concrete Grade | fck (MPa) | Mean of 3 consecutive results must be ≥ | Any individual result must be ≥ |
|---|---|---|---|
| M20 | 20 | fck + 0.825σ = ~26.6 MPa * | fck - 3 = 17 MPa |
| M25 | 25 | ~31.6 MPa * | 22 MPa |
| M30 | 30 | ~36.6 MPa * | 27 MPa |
| M35 | 35 | ~41.6 MPa * | 32 MPa |
| M40 | 40 | ~46.6 MPa * | 37 MPa |
* Assuming standard deviation σ = 4 MPa (good quality control per IS 456 Table 8). Mean target = fck + 1.65σ for mix design; acceptance criteria uses 0.825σ.
Critical Rule (IS 456 Cl. 16.1): Concrete is deemed acceptable if BOTH conditions are met:
1. Mean of any 3 consecutive test results ≥ fck + 0.825 × established σ
2. Any individual test result ≥ fck - 3 MPa
If EITHER condition fails, the concrete is non-conforming and an NCR must be raised.
Generic QA/QC Forms for Any Concrete Project
Beyond the concrete-specific checklists, every project needs these universal QA/QC forms:
| Form | When to Use | Download |
|---|---|---|
| Non-Conformance Report (NCR) | When any work deviates from IS code requirements | NCR Format ↓ |
| Material Approval Request (MAR) | Before any material is used on site | MAR Format ↓ |
| Inspection & Test Plan (ITP) | Master QC plan linking activities to inspections | Concrete ITP ↓ |
| Hold Point Release | Authorization to proceed past critical QC gates | Hold Point Release ↓ |
| Concrete Pour Register | Log of all pours — element, volume, grade, date | Pour Register ↓ |
| Cube Test Tracker | Log of all cube tests — casting, testing, results | Cube Tracker ↓ |
Browse all 249 QA/QC templates → — covering 25 construction families from concrete to electrical, all with IS code clause references.
Common Concrete Defects and QC Actions
| Defect | Cause | QC Checkpoint That Prevents It | IS Code Reference |
|---|---|---|---|
| Honeycombing | Inadequate vibration, congested reinforcement | During-pour: vibration check, bar spacing check | IS 456 Cl. 13.2, 26.3 |
| Cold joint | Delay between layers >30 min | During-pour: layer timing, retarder use | IS 456 Cl. 13.3 |
| Plastic shrinkage cracks | Rapid drying in hot/windy weather | Post-pour: immediate curing, windbreaks | IS 456 Cl. 13.5, IS 7861 |
| Low cube strength | High W/C, wrong mix, poor curing of cubes | Pre-pour: mix design check; During: slump/W-C; Post: cube curing | IS 456 Cl. 7.1, 16.1; IS 10262 |
| Cover inadequate | Cover blocks displaced during pour | Pre-pour: cover block spacing and tying; During: monitor displacement | IS 456 Cl. 26.4, Table 16 |
| Segregation | Excessive free-fall height, over-vibration | During-pour: max 1.5m free fall, vibration duration | IS 456 Cl. 13.3 |
Frequently Asked Questions
How many cube samples per concrete pour?
Minimum 1 sample (3 cubes) per 50 m³ or fraction thereof, with at least 1 sample per shift per grade as per IS 456 Clause 15.2.2. For critical structures, test every 25 m³ or every truck.
What is a Hold Point in concrete QC?
A mandatory inspection point where work cannot proceed until the designated inspector has verified compliance and signed off. The pre-pour checklist sign-off is a Hold Point — concrete placement must not start without QC Engineer approval.
When should an NCR be raised for concrete?
Whenever any requirement deviates from IS code, approved drawings, or approved method statement. Common NCR triggers: cube strength below acceptance criteria, cover less than Table 16 requirement, honeycombing exceeding acceptable limits, or any unapproved deviation from the mix design.
What is the curing period for concrete?
Minimum 7 days for OPC concrete as per IS 456 Clause 13.5. For PPC/PSC concrete, extend to 10-14 days. In hot weather (>35°C), start curing within 2 hours of finishing and continue for minimum 10 days.
Can I use the checklists without modification?
Yes — the templates are designed to be used as-is for any concrete project in India. They include standard IS code clause references and acceptance criteria. You can add project-specific details (company name, logo, project number) to the header section.
Related Resources
- IS 456:2000 — Full Code Details — All key values, tables, clauses, and FAQ
- Concrete Mix Design Calculator (IS 10262) — Free online mix proportioning
- Bar Bending Schedule Calculator — Cutting length and steel weight calculation
- All Concrete & RCC QA/QC Templates (14 formats) — Complete set for concrete QC
- Steel & Reinforcement QA/QC Templates (13 formats) — Rebar inspection, welding, erection
- Minimum Cover for RCC — IS 456 Table 16 Guide
- Water Cement Ratio Guide — IS 456 Table 5
References
- IS 456:2000 — Plain and Reinforced Concrete — Code of Practice
- IS 10262:2019 — Concrete Mix Proportioning — Guidelines
- IS 516:2018 — Method of Tests for Strength of Concrete
- IS 1199:2018 — Methods of Sampling and Analysis of Concrete
- IS 383:2016 — Coarse and Fine Aggregate for Concrete — Specification
- IS 1786:2008 — High Strength Deformed Steel Bars and Wires for Concrete Reinforcement
- IS 9844:2006 — Ready-Mixed Concrete — Code of Practice
- IS 13311 (Part 1 & 2) — Non-Destructive Testing of Concrete