🌡️ Temperature Control in Bituminous Road Work – Practical Guide with MORTH & IRC References

Introduction

Bituminous road (DBM / BC) work में सबसे critical factor होता है:

👉 Temperature Control

अगर temperature सही नहीं है, तो:

❌ Compaction खराब होगा
❌ Density कम होगी
❌ Road जल्दी खराब होगा

👉 “Right Temperature = Long Life Road”

1. Temperature Control क्या है?

Temperature control का मतलब है:

👉 Mixing, transport, laying और compaction के दौरान specified temperature maintain करना

2. MORTH & IRC Code Reference (Very Important)

👉 Bituminous work के लिए main references:

• MORTH Specification (5th Revision)

  • Clause 501 – Bituminous Base (DBM)

  • Clause 507 – Bituminous Concrete (BC)

• IRC Codes:

  • IRC: 111 – Asphalt Mix Design

  • IRC: 37 – Pavement Design

👉 Site पर हमेशा MORTH follow होता है (mandatory)

3. Standard Temperature (As per MORTH)

🔥 Mixing Temperature (Plant)

• Bitumen: 150°C – 165°C

• Aggregates: 150°C – 170°C

• Mix discharge: 140°C – 165°C

🚚 Transportation Temperature

• Covered trucks mandatory

• Temperature loss minimize करें

🛣️ Laying Temperature

• Minimum laying temperature: 120°C
  👉 (MORTH Clause 501 & 507 reference)

🏗️ Compaction Temperature

• Start compaction: 110–120°C

• End compaction: 80–90°C

4. Temperature Loss के Reasons

• Long lead distance

• Delay in laying

• Cold weather

• Wind

5. Site पर Temperature Control कैसे करें?

✔ Plant Control

• Proper heating maintain करें

• Calibration check करें

✔ Transport Control

• Covered trucks use करें

• Delay avoid करें

✔ Site Coordination

• Paver ready रखें

• Roller standby रखें

6. Practical Example

👉 Plant output = 160°C
👉 Site arrival = 120°C
👉 Delay हुआ → 90°C

👉 Result:

❌ Compaction fail
❌ Density कम

7. Common Mistakes

❌ Temperature check नहीं करना
❌ Delay ignore करना
❌ Cold mix use करना
❌ Coordination खराब

8. Site Engineer Responsibilities

• Temperature record maintain करना

• Infrared thermometer use करना

• RFI में record attach करना

📌 Related पढ़ें:\ RFI Guide

9. Practical Tips (Real Experience)

✔ हमेशा temperature record करें
✔ हर truck check करें
✔ Night work में extra ध्यान रखें
✔ Continuous paving रखें

10. Related Articles (Must Read)

• DBM Work

• BC Work

• Core Cutting Test

Conclusion

MORTH और IRC standards के अनुसार temperature control करना बहुत जरूरी है।

👉 अगर temperature control सही है, तो road quality guaranteed है

Final Words

👉 “MORTH follow करो, quality control करो”
👉 “Temperature सही = Road life लंबी”