Concrete Repair System

1. EQUIPMENT

Make sure you have the necessary equipment.

2. MARKING OUT

Make out clearly the area to be repaired.

3. CUTTING BACK

Cut back around the edge of the repair to a minimum depth of 10 mm.

4. BREAKING OUT

Remove contaminated concrete, exposing rear face of any steel uncovered.

5. FULLY EXPOSED STEEL

Further break out may be required to reach clean, uncorroded steel.

6. CLEAN REINFORCEMENT

Steel bars must be cleaned to bright condition - special attention to rear faces.

7. CLEAN THE SUBSTRATE

Remove final traces of contamination and roughen edges to provide a ‘key’

.

8. PRIME REINFORCEMENT

Apply one full, unbroken coat of EPOZINC / BETOFER and allow to dry.

9. ERECT SHUTTER

Fully sealed, grout-tight shutter needed with drainage & air vents.

10. PRIMING THE SUBSTRATE

Saturate substrate several hours prior to placement of BETOCEM MC / BETOCEM FLOW.

11. DRAINING THE WATER

Immediately prior to placing, any excess water to be released via drainage outlet.

12. MEASURE OUT WATER
Refer to data sheet for water content per full bag - add to mixing vessel.

13. MIXING

Only use a full bag & always add powder to the water.
Use a slow speed drill + Colmef mixing paddle; or forced action mixer.
Mix steadily for 5 minutes until a smooth, even consistency is obtained.

14. PLACEMENT

Should be a continuous process and within 30 minutes of mixing.
Ensure sufficient plant, men and materials to complete the job.
Pou ‘bottom-up’ to expel all trapped air, via vents.

15. COMPLETION

Should be a continuous process and within 30 minutes of mixing.
Ensure sufficient plant, men and materials to complete the job.
Pou ‘bottom-up’ to expel all trapped air, via vents.

16. CURING

Cure as soon as formwork is struck, using Betocure S / Betocure AR by Colmef.