📋 Road Construction Quality Control Checklist – Complete Site Engineer Guide (All Layers Covered)

Introduction

Site पर सबसे बड़ी mistake क्या होती है?

👉 Work हो जाता है… लेकिन proper checking नहीं होती

👉 Result:
❌ Rework
❌ Delay
❌ Payment hold

👉 “Quality check नहीं किया = काम पूरा नहीं हुआ”

इस article में आपको मिलेगा complete practical checklist (layer-wise) जो हर site engineer को follow करना चाहिए।

📚 1. Code References

• MORTH Specifications (All Sections)

• IRC Codes (37, 111, etc.)

👉 QC हमेशा specification based होना चाहिए

🧠 2. Quality Control क्यों जरूरी है?

• Proper compaction

• सही thickness

• Long life road

• Billing approval

🛣️ 3. Layer-wise Quality Checklist

3.1 Subgrade

✔ Level check
✔ Camber check
✔ Compaction (FDT ≥ 97%)
✔ Moisture content

📌 Related:\ FDT Guide

3.2 GSB Layer

✔ Thickness check
✔ Gradation check
✔ Compaction (98%)
✔ Level & slope

3.3 WMM Layer

✔ Moisture control
✔ Thickness
✔ Density
✔ Surface finish

3.4 Prime Coat

✔ Surface clean
✔ Application rate check
✔ Uniform spray

3.5 DBM Layer

✔ Temperature check
✔ Thickness
✔ Compaction
✔ Core test

📌 Related:\ Core Test

3.6 Tack Coat

✔ Uniform spray
✔ सही quantity
✔ No over spray

3.7 BC Layer

✔ Surface smoothness
✔ Thickness
✔ Joint quality
✔ Temperature

📊 4. Important Tests Checklist

• FDT (Subgrade / GSB / WMM)

• Slump / Cube (Concrete)

• Core cutting (Bituminous)

• Marshall Stability

⚠️ 5. Common Mistakes

❌ Layer check skip करना
❌ Test report ignore करना
❌ जल्दबाजी में work complete करना
❌ Documentation नहीं रखना

👷 6. Site Engineer Responsibilities

• Daily inspection

• Test verification

• Documentation

• RFI submission

📌 Related:\ RFI Guide

💡 7. Practical Tips

✔ Checklist print करके site पर रखें
✔ हर layer approve कराएं
✔ Test report attach करें
✔ Photo record रखें

🔗 8. Related Articles (Must Read)

• DBM Work

• BC Work

• FDT Test

✅ Conclusion

Quality control site engineer का सबसे powerful tool है।

👉 Proper checking = Zero defect work

🔥 Final Words

👉 “Check करो, तभी approve करो”
👉 “Quality compromise = future problem”