Filling Large Voids In Concrete

Connect a hose to a slabjacking pump then run the hose to the holes leading to the void.

Filling large voids in concrete.

Drill at least four holes through the slab at a point that s centered on the void beneath. How to fill voids under a concrete slab. Immediate replacement of settled concrete or concrete with voids is not a good choice as settling is not yet complete. A slabjacking pump is.

This step will aid in pushing the material into the voids and will also smooth the surface of the repair area. While many variables must be considered in the elimination of surface voids or bug holes in concrete castings there are a number of precautions that can remedy this unsightly problem. With a gel like consistency this fast acting slurry can also be used to fill voids and make repairs on vertical surfaces. Filling the large void with 3 4 roadcrush and tamping it in with a plate tamper to bring the grade up to the underside of the slab.

Careful preparation and methodical practices can eliminate even the worst of surface voids. After the geolift has done its magical work the last thing left to do is patching up the holes. Drilling in 10mm rebar in a 12 x 12 grid and tieing. The foam will fill up the parts of the concrete that are uneven and will raise it to the proper height.

Wetting the edges with a modified thinset slurry. How to fill voids under a concrete slab step 1. Undercutting around the perimeter to expose the edges of the actual slab. Cheng pro formula acrylic slurry is ideal for quickly and easily filling both small and large voids that appear after polishing or after releasing concrete from the mold.

After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day. How to eliminate voids in a concrete casting. This is a means of filling voids underneath concrete slabs by injecting pumping filler materials into the defective areas. Geo polymer void filling is the best method we currently have for void filling but it cannot affect deeper layers of un compacted fill so you are left with supporting and densifying through polymer injection.

Continue this process filling the crack and repair area. There are several ways to fill material under a concrete slab and remove voids. It may become necessary to use a finishing trowel and apply pressure to fill some of the voids.