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Planning and estimating for road projects is no longer just about length and width. Different road types (like highways, expressways, rural roads, or industrial accesses) require specific pavement types—each with unique layers, materials, and even concrete grades.
This Roadwork Layer Take-off Calculator is your all-in-one solution for chainage-based pavement volume estimation, now upgraded to support flexible, rigid, and composite pavement types as per IRC, AASHTO, and MoRTH recommendations.
🔍 What This Calculator Does
This calculator estimates the volume (in m³) of each pavement layer—like subgrade, GSB, WMM, CTB, DLC, PQC, asphalt, seal coat—based on:
- 📏 Chainage blocks (start and end in meters)
- 📐 Road width
- 🧱 Layer thicknesses (editable)
- 🧪 Concrete grades for rigid layers (e.g., M15, M40)
- 🧮 Auto-calculated cement consumption in tonnes
It adapts automatically based on the selected road type and gives you clean tabular outputs, ready for BOQs, site batching, or tender planning.
Roadwork Layer Take‑Off Calculator
Chainage Blocks
| Start CH (m) | End CH (m) | Width (m) |
|---|
Layer Configuration
| Layer | Thickness (mm) | Concrete Grade |
|---|
Results
🚦 Now Supports These Road Types
| Road Type | Pavement Type | Typical Layers (Preloaded) |
|---|---|---|
| Expressway / Toll Road | Rigid | DLC (M15) + PQC (M40) |
| National Highway | Flexible | GSB + WMM + DBM + BC |
| Urban Arterial | Composite | GSB + CTB (M15) + Asphalt |
| Rural PMGSY Road | Flexible | Earth + GSB + WBM + Seal Coat |
| Bus Bays / Parking | Rigid | DLC (M15) + PQC (M40) |
| Industrial Access Road | Composite | CTB (M20) + Asphalt |
You can still override any thickness or concrete grade before calculation.
🧰 How to Use the Calculator
- Select Design Code:
- IRC 37-2018 or AASHTO 1993
- Adjusts design defaults accordingly.
- Choose Road Type:
- Preloads layers, pavement type, and grade (e.g., Expressway = Rigid M40 PQC)
- Input Chainage Blocks:
- Add rows with start CH, end CH, and width.
- Customize Layer Thicknesses:
- You can override preloaded values if needed.
- (Optional) Select Concrete Grades:
- For CTB, DLC, PQC—choose from M10 to M50.
- Click “Calculate Volumes”:
- Instantly view volumes by layer, per chainage.
- Bonus: Cement quantity table for all rigid layers!
- Export:
- Use browser’s print/save (Ctrl + P) to generate BOQ-ready PDF.
🧾 Codes & Standards Referenced
| Layer | Code Reference | Typical Grade | Notes |
|---|---|---|---|
| GSB, WMM, DBM, BC | IRC:37, MoRTH | – | Flexible Pavement |
| CTB | IRC:SP:89 | M10–M20 | Semi-rigid |
| DLC | IRC:15 | M10–M15 | Non-structural |
| PQC | IRC:58 | M40–M45 | Rigid structural |
📊 Bonus Output: Cement Consumption Table
After calculation, you’ll also get:
| Layer | Grade | Volume (m³) | Cement (kg/m³) | Cement Required (tonnes) |
|---|
Helps you:
- Plan batching plant requirements
- Estimate cement bags or delivery tonnage
- Track sustainability KPIs on materials
✅ Why You’ll Love This Tool
- 🚀 No Excel needed—instant load, instant output.
- 🏗️ Perfect for QS teams, engineers, site planners, contractors.
- 📱 Mobile responsive, PDF-ready, and easy to use on-site.
- 🔄 Open to enhancements: CSV export, GPS chainage input, reinforcement planner coming soon!
