Micro Concrete Avcretemc40

Service Details:

Micro Concrete - Avcrete MC 40 is highly suitable for large section repairs in excess of 50mm deep. It is super fluid microconcrete with low permeability. The material does not contain any chlorides, sulphates, amorphous silica or harmful chemicals and is suitable for sections ranging from 50 mm-200 mm

Advantages:

• Offers extremely high level of control of plastic and long- term drying shrinkage
• Low alkali content minimized risk of alkali- silica reaction
• Very low permeability
• Provided excellent protection against carbonation and chloride attack
• Exceptional flow allows pumping or pouring into restricted locations
• Self-compacting nature
• Applicable for large section repairs
• Low permeability
• Eliminates honeycombing and displaces air without vibration

Preparation:

• Rigid, tight formwork should be used with properly sealed faces to prevent loss of material and to make sure that no water is absorbed from the repair material
• Drainage outlets should be included in the formwork for pre-soaking
• There should be a provision for air venting
• There should be suitable access points to pour or pump the mixed micro-concrete into place
• Break out the complete repair area to a minimum depth of 50mm
• Remove ant dust, unsound or surface contamination from the surface
• The surface must be roughened and any laitance must be removed by hacking, chipping or sand / grit-blasting
• Expose fully any corroded steel in the repair area and remove all corrosion deposits Steel should be cleaned to a bright condition

Precautions:

• Shutter or material should not be vibrated
• Light, but not excessive tapping of the shutters is permitted

Properties: