Concrete shot blasting machine for concrete floor is a new small, portable, and mobile shot blaster, mainly used to increase the roughness and friction coefficient of concrete floors, asphalt pavements etc. During the operation of the portable road-surface shot blaster, by controlling and selecting the particle size and shape of the shot abrasive, and adjusting and setting the walking speed of the shot blasting machine, the shot flow rate is controlled to obtain different shot strengths and different surface treatment effects.
A Portable Solution for Enhanced Floor Roughness and Safety
Concrete surfaces, though robust, can sometimes exhibit unwanted smoothness due to factors such as polishing, contaminants, or curing additives, creating slip hazards in high-traffic areas. The proposed machine addresses this by using shot blasting—a process in which small abrasive particles are projected at high speed—to micro-roughen concrete surfaces. Enhancing the floor texture results in increased friction, thereby contributing to improved safety in areas such as industrial facilities, public walkways, and commercial spaces.
1. Introduction
The concrete shot blasting machine is a revolutionary advancement in surface preparation technology, designed to improve the roughness and friction coefficient of concrete floors, asphalt pavements, and other industrial surfaces. This compact, mobile, and portable shot blaster combines efficiency with versatility, making it ideal for small to medium-scale projects requiring precise surface treatment .
2. Key Features of Modern Portable Shot Blasters
Compact & Mobile Design:
Weighing as little as 1-2 tons, these machines feature wheeled bases or trailer-mounted configurations for easy transportation between job sites. Their small footprint allows operation in confined spaces like parking garages or narrow factory floors .
High-Efficiency Abrasive Recycling:
Equipped with automated shot recovery systems, these machines recycle steel grit or other abrasives during operation, reducing material waste by up to 95% .
Adjustable Surface Profiling:
Operators can control the intensity of shot blasting (via wheel speed and abrasive flow) to achieve specific surface roughness levels (e.g., CSP 2–5 for concrete or IRI < 3.0 mm/m for asphalt) .
Multi-Surface Compatibility:
Suitable for concrete floors, asphalt pavements, steel bridge decks, and even textured coatings removal. Some models integrate vacuum systems for dust-free operation
3. Applications in Construction and Maintenance
Floor Safety Enhancement:
By increasing the friction coefficient (up to 0.6–0.8 BPN for treated concrete), these machines mitigate slip hazards in wet environments like warehouses or airport runways.
Surface Preparation for Coatings:
Creates an optimal anchor pattern (SA 2.5–3 cleanliness) to ensure adhesion of epoxy, polyurethane, or other industrial coatings .
Roadway Maintenance:
Used to restore skid resistance on aged asphalt pavements or remove tire-polishing effects on highways .
4. Technical Advantages Over Traditional Methods
- Speed: Processes 200–500 m²/h depending on surface hardness and desired profile depth (0.1–3 mm) .
- Precision: Consistent roughness control via PLC systems, avoiding over-blasting or uneven surfaces common in manual grinding .
- Cost-Effectiveness: Reduces labor costs by 40–60% compared to mechanical scarifying or chemical etching .
Key Components
The Concrete Shot Blasting Machine is envisioned as a transformative, portable, and efficient solution designed to improve floor roughness and safety. With its innovative design, user-friendly operation, and adherence to safety and environmental standards, this machine holds strong potential for widespread adoption in markets where enhancing surface traction is critical. Whether as a temporary measure or a permanent upgrade, the solution promises to deliver increased safety and operational efficiency across diverse commercial, industrial, and public environments.
Blast Unit: Contains the rotor and nozzles that accelerate the abrasive media. The nozzle design is optimized to deliver a consistent shot pattern over a defined width.
Media Hopper: A storage compartment designed for abrasive media with adjustable flow controls to tailor the intensity of roughening.
Vacuum/Dust Extraction System: Integrated to minimize airborne particulates and recycle spent media where possible. This ensures compliance with dust control standards and minimizes material waste.
Electrical Control system:Safety interlock for operation; IP65 protection for control cabinet; Air conditioning;
Conclusion
The portable concrete shot blasting machine represents a leap forward in surface engineering, combining mobility, precision, and environmental sustainability. Its ability to enhance safety and longevity of floors and pavements makes it indispensable for modern construction and infrastructure maintenance.
