Road shot blasting machine (pavement shot blasting machine) is a special equipment that mechanically projects shot (such as steel shot, cast steel shot) onto the road surface at high speed and specific angle to achieve cleaning, strengthening and roughening treatment.
I. Core functions and technical principles
Surface cleaning
Remove impurities such as dirt, oil, old coating, rubber residue, etc. from the road surface to restore the original state of the road surface.
Through high-speed projectile impact, the loose layer on the surface of concrete or asphalt is peeled off to improve adhesion and durability.
Surface roughening
Increase the roughness of the road surface, increase the friction coefficient, and enhance driving safety (especially suitable for bridges, tunnels, airport runways and other scenes).
Provide an ideal adhesion surface for subsequent coatings (such as waterproof layer, anti-corrosion paint) to extend the service life of the road.
Dust-free and environmentally friendly construction
Equipped with a dust removal system, the shot and dust are recovered through negative pressure to achieve dust-free operation, reduce environmental pollution and health hazards to construction workers.
Automatic circulation system
The shot is automatically separated, recycled and reused to reduce material consumption and operating costs.
2. Main application scenarios
Highways and bridges
Bridge deck treatment: Clean the bridge deck before anti-corrosion coating to improve the adhesion of the coating and meet the SA2.5/SA3 cleanliness standards (such as the Qingdao Bay Bridge case).
Pavement renovation: Remove the old coating, increase the roughness, and provide a good base for the new asphalt or concrete.
Airport runway
Remove the rubber tire marks and markings on the runway surface, restore the friction coefficient, and ensure the safety of aircraft takeoff and landing.
Applicable to cement concrete and asphalt runway maintenance.
Tunnel maintenance
Clean the inner wall and ground of the tunnel, remove stains and carbonized layers, and improve the adhesion of fireproof and waterproof coatings.
Improve the anti-skid performance of the ground and reduce driving risks.
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