Roads, homes, buildings and other structures are mostly made up of concrete – concrete slabs to be more exact. However, due to wear and tear and constant exposure to the elements, these building foundations can be damaged. When this happens, they should be repaired immediately to prevent water from seeping in, or to keep the structure from collapsing.
Here are a few ways you can repair damage concrete:
Fill in Small Cracks
Small cracks often appear when the soil underneath moves. In some instances, concrete walls can sustain cracks after an earthquake. In both cases, repairs must be made immediately and must be allowed to cure slowly for seven days or more. The cracks are first chiselled out and cleaned. Afterwards, a slurry made up of concrete mix is applied onto the walls and cracks. If the cuts and cracks are deep, a thicker, heavier paste may be poured into the cavity itself. The mixture must be kept moist and covered with plastic film while curing.
Slab Jacking for Uneven Slabs
Uneven slabs or those with large cracks need an experienced hand when being repaired. It requires removing the old slab, laying down a new gravel bed before a brand new slab of concrete is poured out. Slab jacking, on the other hand, refers to the method where holes are cut into the concrete slab in strategic locations. The holes are then filled with pressurised concrete, which effectively raises the slab. Once raised, the cracks are fixed, and the holes are filled in. The advantage of this method is that takes less time to cure, and people can walk over the concrete slabs after a short period.
Whether you’re doing minor repairs or major concrete reconstruction jobs, you’ll need to have the right concrete repair products and tools to get the job done correctly.