Abrasive blasting means propelling a stream of abrasive material at high speed against a surface using compressed air, liquid, steam, centrifugal wheels or paddles to clean, abrade, etch or otherwise change the original appearance or condition of the surface.
Abrasive Blasting may be used for surface preparation prior to the application of protective coatings or to remove degraded material before concrete remediation works are carried out.
FCS Concrete Repairs are experienced in all forms of Abrasive Blasting (commonly known as “Sandblasting”) including the following:
- Dry Abrasive Blasting
- Wet Abrasive Blasting
- Turbo Blasting
Dry Abrasive Blasting involves propelling a stream of abrasive material at high speed against a surface to remove surface coatings including paint, carryout surface preparation, remove degraded concrete in preparation for concrete repairs, roughen a concrete surface to assist in bonding, and remove oxidisation (rust).
Wet Abrasive Blasting involves propelling a light stream of water with abrasive material at high speed against a surface to remove surface coatings, carryout surface preparation, remove degraded concrete in preparation for concrete repairs, roughen a concrete surface to assist in bonding, decontamination of surfaces. This process eliminates dust, reduces media breakdown and creates a lubricating effect which protects the surface and cleans media and dust from the surface during the process. Surfaces are clean and ready for specialised coatings and painting. Different grades of media and variable water rates can be combined to achieve the optimal finished surface.
Turbo Blasting system of abrasive blasting prevents the spread of air-borne particulate into the atmosphere and is a proven safe and cost-effective method for the removal of lead paint, asbestos, and hazardous coatings with no messy chemicals and no dusty sandblasting.
Conventional blasting media are mixed with water in a pressure vessel. Water pressure from an internal pump forces the mixture under pressure from the vessel to the compressor-generated airstream where it is accelerated towards the blasting nozzle. The quantity and pressure of the abrasive mixture is adjustable at any time resulting in a very controlled blasting process. The result is a versatile, economic and environmentally safe wet abrasive blasting process.
The choice of media is important and depends on the nature of the application.