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Concrete Mountain Road Construction Guide

Preparation

Compact soil and shape slopes (≥15% slope needs layered pouring, ≤20cm per layer)

Use C35 concrete with 0.4-0.45 water-cement ratio, add polypropylene fibers (1%) to prevent cracking

Set adjustable steel templates with laser leveling (±2mm accuracy)

Pouring Process

Lay concrete with GPS-guided pavers (0.8-1.5m/min speed)

Vibrate densely (insert ≤40cm spacing) and smooth surfaces before initial setting

Install temperature sensors (max 20°C/m gradient) and check flatness every 30 mins (≤3mm/3m)

Slopes & Harsh Conditions

Add anti-slip grooves (15mm deep, 200mm spacing) on steep slopes (more than 8%)

In high-altitude areas: control air content (5.5±0.5%) and add calcium formate (3-5kg/m³)

Use rainproof covers and apply waterproof coating (0.3kg/m²) in wet weather

Curing & Quality Control

Auto-spray water to keep surface moist (more than 90% humidity) for 7 days

Scan cracks after 4 hours (max 0.2mm width allowed)

Test skid resistance (TD≥0.6mm) and bending strength (≥4.5MPa at 28 days)

Key Tips
Adjust methods based on real-time data. Focus on slope stability, weather adaptation, and strict curing to ensure 20+ years of service life.