Scope of materials in transportation

Materials are the basis of transport infrastructure.

• Roads: aggregates, bitumen, asphalt, cement concrete, soil and geotextiles for pavement layers.
• Railways: steel rails, concrete or timber sleepers, ballast stone.
• Bridges and tunnels: structural steel, reinforced and prestressed concrete, bearings and cables.
• Airports and ports: rigid concrete pavements, piles, steel and protective coatings.
• Drainage and markings: pipes, culverts, paints and signboards.

Knowledge of these materials ensures strength, riding quality, durability and low maintenance cost.