Fill Void Under Concrete Steps

Once it hardens use some soil around the low spots and slope it away from the steps packing it down firmly.

Fill void under concrete steps.

1 what material should i use to fill the void under the porch. Use a drill equipped. Use a hoe or fabricate a pushing stick and stuff the concrete into the crevice. Once the holes have been set the geolift is injected in between the concrete and the dirt.

It seems to me that i need to remove the gravel and fill the void with dirt and pack it in as tight as i can get it. I would use an 8 diameter sono tube cut to 30 which is your frost line fill it with quickcrete concrete mix. Filling in under your steps is an important step to prevent not only pests but also seepage into your foundation through small cracks or openings that may be hidden from view. Holes should be no less than six inches away from the edge of the concrete.

The foam will fill up the parts of the concrete that are uneven and will raise it to the proper height. Drill at least four holes through the slab at a point that s centered on the void beneath. 2 there is currently a few inches of gravel under the porch. 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.

The first step is to drill holes in the problem concrete. How to fill voids under a concrete slab step 1. Should it be removed or do i add the void filling material directly on top of the gravel. A sono tube is a cardboard tube available at home depot.

Quickcrete concrete mix is also available at home depot. Connect a hose to a slabjacking pump then run the hose to the holes leading to the void. I would fill the area with concrete stone mix. You might need two bags.

A slabjacking pump is. While this method of slab jacking is cost effective there are major drawbacks to opting for this type of repair. The grass will eventually fill in. Mix the concrete to a thicker consistency.

A sand cement grout can be used to fill voids under concrete slabs.