Hanson Protect extends the life of structures and buildings by protecting the reinforcement within the concrete with a special corrosion inhibitor.
Reinforcement within concrete can, over time, deteriorate due to corrosion. As corrosion progresses the steel reinforcement not only weakens but expands. These expansion forces cause the concrete to crack and spall and subsequently lose its structural integrity.
Hanson Protect incorporates an integral active agent that coats the steel preventing corrosion. It can be used as an enhancement to conventional cathodic protection systems or as a standalone product to offer greater lifetime design.
Where to use it
- Tidal zones/coastal construction
- Splash zones on highway structures
- Bridge decks
- External supporting columns
- External, heavily reinforced concrete
- Internal areas of high moisture/humidity
- Water treatment works
- Biomass plants
- Salt storage areas
- Aggressive chemical environments
- Significantly reduced costs over sacrificial cathodic protection systems
- Significantly reduced costs over integral electrical monitoring cathodic protection systems
- No additional associated labour or installation issues
- Increased structural lifespan
- Reduced maintenance and repair costs
- Backed by full BBA certification
- Available from all Hanson Concrete plants
Benefits subject to good concreting practice (placement, finishing and curing).
Main factors influencing reinforcement corrosion
- Chloride penetration
- Moisture absorption
- Incorrect cover to reinforcement
- Structural damage
Hanson concrete can incorporate a proportion of Hanson Regen, (Ground Granulated Blast furnace Slag or 'GGBS'), which is a cement replacement material, helping to produce a product that generates a much lower level of CO2 emissions than ordinary cement.