Concrete Polyfix Frequently Asked Questions
When should I raise my concrete rather than replace it?
If your concrete has settled but has no major cracks or spalling you should consider raising your concrete rather than replacing it. As long as your concrete is still structurally sound, raising is a cost-effective and hassle-free alternative to replacing the entire concrete slab. In addition, raising takes approximately 1-2 hours to complete.
If the section that needs to be repaired is small, you will likely have to choose to raise over replacing. Most concrete contractors will not take on a replacement job if it is too small.
What makes polyurethane better than mudjacking?
Mudjacking is a traditional process for raising concrete that uses cement and sand to stabilize the soil beneath the concrete. Benefits of polyurethane over mudjacking include:
- Longevity – Polyurethane acts as a filler beneath the concrete that will not shrink or breakdown over time
- Appearance – Smaller and fewer injections holes are needed for polyurethane than mudjacking.
- Lightweight – Polyurethane is an environmentally friendly foam that expands, efficiently filling open voids. It is extremely light compared to the sand and cement used in mudjacking.
Do I need to be home for an estimate or when the work is being done?
Not necessarily. If we’re able to discuss your project over the phone, we can come out while you are not present for an estimate or complete the repair. However, if you have specific questions or concerns, you may decide you’d like to be present.
What causes concrete to settle?
Some of the most common reasons include:
- The soil under the concrete slab dries out and sinks, creating a gap between the slab and soil.
- The soil or gravel base was not properly compacted during the initial construction.
- Water regularly drains or pools around the edge of the slab, leading to washout under the cement.
- Cracks or gaps in the concrete allow water to seep below the slab and cause seasonal frost heaving.
How can I prevent my concrete from sinking again after it has been raised?
The best way to prevent your concrete from sinking again is to fill any cracks or gaps in your concrete where it has settled previously. We recommend using a caulk sealer every other year to avoid further sinking. Adding soil around the concrete slab to work as a filler also helps prevent the washing away of the base.
How soon can I drive/park on my newly leveled concrete?
Once the polyurethane has cured (a process that takes approximately 15 minutes) you will be able to drive on your concrete immediately.
GET AN ESTIMATE
We’re happy to answer any questions you have in order to find the concrete solution best for you.
We want to help you make the choice that’s right for you. Contact us or give us a call!