Road and Bridge Construction

Roads Connect the World
“efficient construction, low-carbon operations, and circular regeneration”

Roads and paths need to be built because natural ground is unsuitable as a traffic surface and cannot meet the increasing demands of goods, freight, and passenger traffic.

Core Challenges and Industry Pain Points

• Explosive Increase in Material Demand: Depletion of natural aggregates and high carbon footprint in asphalt/cement production.
• Construction Efficiency Bottlenecks: Traditional processes extend construction periods and traffic restrictions disrupt economic and social operations.
• Escalating Environmental Pressures: High energy consumption in hot mix processes, asphalt fume emissions, and accumulating construction waste.
• Soaring Operation & Maintenance Costs: Frequent pavement issues (rutting, cracks) drive full lifecycle maintenance costs above 60%.

Overall Solution Framework

Modular Intelligent Construction System:

• Mobile Asphalt Concrete Plant: Features a crawler chassis for rapid relocation to on-site production—cutting transport energy by 30%—and an intelligent temperature control system (±2℃ precision) to optimize asphalt mix quality for cold, warm, or recycled processes.
• Unmanned Construction Unit: Includes a 3D intelligent paver (GNSS + laser leveling, with a flatness error <3mm) and a fleet of unmanned rollers operating in coordinated mode via AI path planning to achieve compaction rates above 98%.

Green Materials and Low-Carbon Processes:

• Recycling Technology Integration: Plant-mixed hot recycling (with RAP content of 30%-50%) transforms asphalt plants to process recycled material, lowering new asphalt consumption; and cold recycling technology uses foamed or emulsified asphalt for on-site pavement regeneration, reducing aggregate extraction and carbon emissions.
• Low-Carbon Material Innovations: Warm mix asphalt (WMA) reduces construction temperatures by 20-40℃ and cuts VOC emissions by over 50%, while recycled aggregates from steel slag or construction waste substitute natural stone with compressive strengths exceeding 40 MPa.

Intelligent Quality Control:

• Digital Construction Platform: Utilizes BIM+GIS to simulate construction plans, avoiding pipeline conflicts and design errors; IoT sensors provide real-time monitoring of asphalt temperature, paving thickness, and compaction paths, synchronizing data to the cloud.
• AI-Based Pavement Diagnostics: Drone inspections combined with image recognition (crack detection rate >95%) automatically generate maintenance plans, and self-healing pavement materials (microcapsule asphalt) extend service life to over 20 years.

Resource Recycling and Environmental Compliance:

• Near Zero-Emission Construction: Asphalt plant flue gas purification using activated carbon adsorption and electrostatic dust removal (PM2.5 <10μg/m³); construction wastewater recycling system with a recovery rate ≥85%, with sludge drying for curbstone production.
• Carbon Neutrality Pathways: Photovoltaic asphalt pavement (integrated power generation and snow melting) and bio-asphalt (using vegetable oil instead of petroleum asphalt) reduce carbon emissions by 40%.