Concrete Repair Tips – Foundations, Slabs & Driveways

cracked concreteConcrete foundations and slabs may over a period of time get damaged due to poorly prepared under-surface and also because of water penetration. When the soil of the sub-surface of – a concrete – is not compacted well, it can move and cause both minor and – major cracks. At times, the foundations might move. The minor repairs can be – done by – the owner. When it comes to major cracks and alterations in the concrete foundations, you will need the services of professional contractors to fix that, and that is where we come in. We will look at the different concrete cracks and how to repair them.

Repairing Small Cracks

Concrete repair of small cracks can be handled by the homeowner. The cracks are minor and they require little expertise. The crack can be easily chiselled out. For the best results, the crack must be kept – wet for a minimum of 24 hours. As soon as the stated time elapses, the slurry of – concrete mist is then applied to the crack’s walls and then the heavier paste-like mist is dispensed into the cavity. The area repaired should then be kept well-covered and moist for between 5 and 7 days. This will allow the concrete to cure gradually.

Repairing Big Cracks and Uneven Slabs

The large cracks are in most cases connected to the – undersurface of slab setting, or even – washing away. To correct this, the slab – is removed, then a new bed – of the – gravel is placed, and finally a fresh slab – is then dispensed. Repairs of this nature require the services of a professional contractor.

Slab jacking is one of the most common method used by professionals in repairing uneven slabs. In this method, holes are – cut into the slab in parts which must be raised. The cores must then be removed for future use. The next step is to pump some wet – mix of – thick concrete under the slab through the holes. The slab is jacked (raised) into place as the pressurized concrete takes up the space.

With the use of the best concrete adhesive, the plugs that had been initially left out are replaced into the holes. The linear cracks that appear in the slab can also be repaired in – the same manner. The amazing thing about this method is that you can walk on top of the slabs right after they have just been repaired! However, the heavier – duty traffic will require to be – withheld until – the concrete is completely cured. The repair takes a period of between 3 and 7 days.

Foundation Repairs

Foundations can experience water washout or sometimes drastic settling. When this happens, these foundations require to be fixed through the installation of metal ground jacks. For this technique, the deep holes must first be drilled – into the surface. These holes must be of a depth of between 10 and 50 feets. As soon as the drilling is complete, the metal pipes are put into these – holes. Plates designed from angle-iron are then fortified to the foundation.

Hydraulic jacks can be used to raise the foundations to their initial levels. The pipes that are placed in the holes must cut to a specified length and then fused into the correct place on the angle iron. – After this process, appropriate drainage trenches are mounted alongside the foundations of the walls to – eliminate any – settling water.


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