Solution Overview
Quality Assurance & Construction Efficiency
Quality Assurance
Real-time compaction monitoring and pavement flatness testing ensure road quality meets national standards and reduces rework costs.
Safety Management
Traffic signal detection, sight distance measurement, and worker safety equipment protect construction personnel and road users.
Efficiency Gains
GPS total stations and laser levels accelerate surveying, reducing layout time by 60% and improving construction efficiency.
System Architecture
Road Construction System Architecture
Core Products
Key Products in This Solution
GPS Total Station
Angular: 2", Distance: ±2mm+2ppm
Laser Level
Self-leveling, ±0.3mm/m accuracy
Sand Cone Compaction Tester
Field density measurement, ASTM D1556
Nuclear Density Gauge
Compaction ≥96%, ASTM D2950
Asphalt Core Drill
Ø100mm, depth 200mm
Infrared Thermometer
Asphalt temperature, -50~500°C
Pavement Flatness Meter
IRI measurement, 3m straightedge
Skid Resistance Tester
BPN ≥45, EN 13036-4
Road Marking Retroreflectometer
RL ≥100 mcd/lux/m²
Traffic Counter
Axle load, speed, classification
Concrete Test Hammer
Bridge deck strength, EN 12504-2
Pipe Locator
Underground utility detection, 0.1m accuracy
Work Process
Standard Operating Workflow
1
Route Survey
GPS total station layout, benchmark setting, route staking
2
Earthwork Grading
Subgrade excavation, fill compaction, slope shaping
3
Base Compaction
Base layer compaction testing with sand cone or nuclear gauge
4
Asphalt Paving
Temperature monitoring during paving, compaction verification
5
Flatness Check
IRI measurement and 3m straightedge flatness inspection
6
Marking & Signage
Road marking retroreflectivity test, sign visibility check
7
Safety Audit
Traffic safety audit, sight distance measurement, hazard review
8
Acceptance Test
Final quality inspection, documentation, handover to authority
Standards & Compliance
Applicable Standards & Certifications
| Standard | Scope | Application | Type |
|---|---|---|---|
| JTG F80/1 | Highway Engineering Quality Inspection | Road construction QA | Mandatory |
| GB 50092 | Asphalt Pavement Construction Specification | Asphalt paving works | Mandatory |
| JTG D30 | Highway Subgrade Design Specification | Subgrade compaction | Mandatory |
| EN 13036-4 | Road Surface Characteristics — Skid Resistance | Pavement skid testing | Reference |
| ASTM D1556 | Sand Cone Method for Soil Density | Compaction testing | Reference |
Selection & Deployment
Selection Recommendations
01
Compaction Testing Method
Use nuclear density gauge for highways (fast, non-destructive); sand cone method for urban roads (no radioactive source required). Calibrate against laboratory standard density.
02
Surveying Instrument Grade
Select GPS total station (2" angular accuracy) for primary control; use laser level for construction layout. Calibrate before each project.
03
Asphalt Temperature Control
Monitor asphalt temperature with infrared thermometer during paving. Compaction temperature window: 120-160°C. Record and archive all temperature data.
04
Acceptance Instrument Package
Flatness meter + skid resistance tester + retroreflectometer form the standard acceptance package. Calibrate all instruments within 6 months before acceptance.
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