Technical Information

Technical information

Thin-layer Split (Stone) Mastic Asphalt Pavement Thin-layer SMAC

Category :
    Paving Methods > Roadway > Maintain / Repair > 

For repairing cracked road surfaces and stress-relief layers

Overview

Thin-layer pavement made with a special asphalt mixture of which Max. Aggregate size is 5 mm. An aggregate structure packed with sand mastic that has been reinforced with vegetable fibers results in excellent flexibility and watertightness.

Features

  1. Economic Efficiency: Less material is used, and no milling work is required to adjust the road surface elevation.
  2. Flexibility: Reflection cracking from cracked road surfaces is inhibited.
  3. Water-tightness: Prevents the infiltration of rainwater into the existing pavement through existing cracks.
  4. Shortened construction period: Construction work can be performed without road milling work, thereby shortening the road closing time for works and reducing the impact on roadside residential environments.

Uses

  • Repairing cracked road surfaces and the thin-layer overlay method
  • Inhibiting reflection cracks and laying down stress-relief layers
  • Underlying layer (impermeable layer) of drainage pavement
  • Leveling layer

Related

Application example to cracked road surface
Cross-section and texture of Thin-layer SMAC
Example of a repaired cracked road surface (bottom left: before construction work; top right: after construction work)
Example of application to the stress-relief layer (foreground: unrepaired section)

Typical Cross Section