| technical guides |
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| Technical Guide 1 - WATERPROOFING ROOFS & TERRACES |
| Technical Guide 2 - WATERPROOFING EXTERNAL WALLS |
| Technical Guide 3 - PROTECTION OF FOUNDATIONS |
| Technical Guide 4 - BONDING OF PLASTER |
| Technical Guide 5 - BONDING NEW CONCRETE TO OLD |
| Technical Guide 6 - FIXING TILES |
| Technical Guide 7 - REPAIRS TO STRUCTURES |
| Technical Guide 8 - WATERPROOFING WATER TANK |
| Technical Guide 9 - PROTECTING STEEL (REINFORCING BARS) |
| Technical Guide 10 - WATERPROOFING WET AREAS IN BUILDINGS |
| Technical Guide 11 - REPAIRS TO JOINTS BETWEEN BRICKS & CONCRETE |
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TECHNICAL GUIDE 11 - REPAIRS TO JOINTS BETWEEN BRICKS & CONCRETE
Very often we notice separation or cracks in locations where brick masonry meets concrete - say a column or slab. This happens as a result of differential or uneven expansion (or contraction) of the two dissimilar materials. These are often inevitable unless adequate precautionary measures are taken.
The following procedures should be adopted to repair such cracks:
- Open the cracks into 'V' groove; clean and moisten the groove.
- Apply a priming cum bonding coat of POLYALK EP / cement slurry in the
proportion 1:1 (by wt.) with brush to grooved surface.
- Immediately, fill the groove with polymer modified mortar, which is prepared by mixing :-
2 kgs. POLYALK EP
5 kgs. Cement
15 kgs. Quartz Sand
After 15-20 minutes level the surface with steel trowel.
- After 48 hours, cure by sprinkling water for 2-3 days.
- Further finishing process can then follow.
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