Repair Guide for a Cracked Patio Slab


Few things can be more disappointing about a patio pad than the formation of large cracks. Combine the cracks with settling, and you may end up with an uneven slab of concrete. Fortunately, you don't always have to rip the whole thing out and start fresh. The following are the methods you can use to have your patio made to look like new without the expense of removal and replacement.

Lift the slab

The first task will be lifting the slab so it is level again. The process of settling has left voids underneath the patio, and these will need to be filled at the same time the patio is lifted, or else the slab will simply sink again. There are two main processes used to complete this, mudjacking and polymer lifting.

Mudjacking is the traditional method. Holes are drilled into the slab, and a hose is inserted, which pumps a mortar mixture underneath the slab. This lifts it and then hardens to fill the void. Polymer lifting is a similar process, but it uses a lightweight polymer to fill the void. If erosion is a concern, polymer lifting is the better choice, since polymer is less likely to be affected.


Once the slab is even, the next step is to patch the cracks. This requires several steps, which include the following:

  1. Any weeds or debris in the cracks must be removed, and the cracks need to be cleaned out.

  2. A foam rod is cut and placed into any cracks wider than your little finger. This rod allows for normal temperature expansion so that the crack filler doesn't develop cracks over time.

  3. The crack-filling compound is forced into the cracks to fill them. This compound consists of a concrete polymer that is able to expand and contract slightly, and this helps eliminate future cracking.

Once the crack filler cures, the patio can be considered repaired.

Resurfacing options

The patchwork of filled cracks will still be visible after the repair is complete, though. You can opt to have the patio pad resurfaced, which means a thin layer of fresh concrete will be applied over the old. This will camouflage the damage and make the patio look new again. First, the top of the pad will be ground down slightly so the new thin layer of concrete will adhere properly. You can stick to plain concrete or have the concrete tinted or even stamped with a design. Contact a paving contractor in your area for more information.


15 August 2016

Decorating Your Pavement

After I began working with a friend of mine to beautify my yard, I realized that there was one piece of the puzzle that I seemed to be missing. My driveway and front sidewalk were in dire disrepair, and I knew that I needed to do something to make things right. I worked with a paving contractor to completely patch, refinish, and stain the pavement, and when he was done the area blended right into my design aesthetic. This blog is all about decorating your pavement by doing things like using concrete acid stain and hiring professionals to add decorative details.