What are the advantages of using a bridge deck shot blasting machine for road surface cleaning compared to traditional bridge deck treatment processes?
Currently, many outdated surface treatment processes used in China include: Traditional bridge deck polishing causes the entire cleaning area to be covered in dust, preventing dust-free operation and increasing the risk of pneumoconiosis; The equipment is unintelligent and requires a significant amount of manual labor, primarily using wire brushes and shearing. While the materials are harmless, the process is inefficient.
Currently, a widely used basic surface treatment process in China is on-road shot blasting using a bridge deck shot blasting machine. This mechanical process uses a high-speed rotation of a blasting wheel to eject particles at high speed. The surface to be treated is subjected to impact blasting, and dust removal equipment is provided to separate particles and dust. New bridge deck shot blasting equipment is available in a variety of models. Ride-on bridge deck shot blasting machines can be used for wide bridge decks, while smaller, mobile shot blasting machines are available for narrower locations. These machines offer impressive shot blasting efficiency and can be selected based on the specific site, significantly reducing labor costs and shortening polishing time. Shot blasting is currently widely used in China for construction projects such as bridges, airports, highways, deck waterproofing, steel box girder anti-corrosion, and concrete and asphalt pavement maintenance.
Improper surface preparation processes and methods can severely affect the adhesion between the base surface and overlay materials, coatings, and waterproofing, severely limiting the performance of the materials themselves. This can severely damage the quality of the project. These include: bridge waterproofing, concrete protective layers (white to black), asphalt caps (micro-surfacing, thin slurry seals, etc.), and various other functional caps. Road shot blasting plays a vital role in preventing previously discovered concrete corrosion.
