The Pump
This option is the most common for contractors, and we find it to be the most reliable option for concrete slab lifting. The tools required include a diamond saw blade, a core drill, a rock hammer, a mixer, and a pump.
After cutting through the slab, contractors should use the core drill to cut several holes in the slab. The rock hammer should also be used to create foot deep homes where the core driller was used. After mixing a grout blend, workers can use the concrete pump to deliver the mixture in small doses.
Workers should carefully deliver the mix so that the slab rises the correct amount. Adding too much of the grout blend can make the slab rise too much, which creates a new series of problems for contractors to solve. However, done correctly, this solution delivers a uniform product.
This method can also be used with polyurethane foam, where the ingredients are injected under the slab to mix. This option provides the necessary lift as the foam expands.
The Jack
Using a jack is an alternative to the more power tool-intensive option we listed above. We recommend surveying the site carefully before using this option, as digging through a utility cable or too close to a home would be catastrophic.
For this option, the goal is to dig far enough down to get a jack under the slab so workers can access the void underneath the slab. From there, workers can add the necessary lifting material, whether that’s grout mix or foam.
Using a jack is generally considered the less preferable option. This fact is because many things can go wrong, it is more work, and it only works on smaller slabs. However, each contractor should weigh the conditions on each job site.
The Foam Alternative for Concrete Slab Lifting
Generally, concrete slab listing is done with closed-cell foam. This foam is more stable than the open-cell option, making it less likely to shift over time. A nozzle is necessary to deliver the foam, but that is the only special consideration.
Foam is considered a viable option for concrete slab lifting due to its stability and quick cure time. It can be walked or driven on in under an hour, depending on the conditions. For busy businesses, using foam helps set contractors apart.
Purspray offers advanced products and expertise to foam contractors everywhere. Our stellar service record helps us ensure the contractors we work with have the knowledge to succeed for their concrete slab lifting clients. Contact Purspray today for more information. Request your quote with Purspray today to learn more about what equipment you need – to get your business running.
