I. Core Functional Principle
High-speed steel shot blasting (80-120 m/s) achieves:
Surface cleanliness: Meets SA2.5 (ISO 8501-1)
Roughness Control: Creates a texture depth of 0.3-1.5mm (pendulum friction coefficient BPN ≥ 65)
Two and Four Typical Application Scenarios
Pre-treatment for Overlay
Improved Bond Strength: Develops slurry seal bond strength ≥ 0.8MPa (JTGE20-2011)
Enhanced Durability: Extends pavement service life by 30-50%
Optimized Anti-Slip Performance
Special Road Section Treatment: Targets sharp curves with a radius of <300m
Improved Friction Coefficient: Increases wet BPN by over 40%
Oil Flooding Treatment
Oil Film Removal Rate: >95% (Thickness 0.5-2mm)
Anti-Slip Restoration: Restores pendulum values to the regulatory requirement of 45 BPN or higher
Road Marking Removal
Removal Efficiency: 200-300 m2/h (Thermoplastic Road Marking)
Surface Residue: <5% (Visual Inspection)
