Filling Between Concrete Slabs

The felt that your talking about is an expansion joint filler.

Filling between concrete slabs.

I would not fill it with anything that would stop the expansion and contraction of the concrete slab. Clean the gap of any foreign material using a wire brush. 8 comments on what do i use to fill in the space between slabs in my concrete driveway. There is a space in between them that is 1 5 8 wide 15 long and about 3 deep.

Buy some redwood or other fine grained lumber like teak that is naturally. Sealers and fillers for concrete joints are not the same thing and have very different purposes. I m well aware that quicker more expensive compounds are available to pro. While it s not always necessary to seal or fill a joint here are a few things to think about.

Dale buchanan july 3 2010. There s a wide ugly gap between my concrete outdoor patio slab and the slab my house is built on. Examine the size of the gap to determine the repair method. Then mix the mortar fill in the hole and level it to blend it in with the surrounding structure.

For gaps 1 4 inch or less in width caulking alone will be. A sealer is soft and able to accommodate the concrete slab s expansion and contraction. You might find some heavy duty caulking that would stay. This method is aimed squarely at diyers using cheap readily available materials.

Start at one corner of the gap and push the brush through using a scooping. Concrete takes time to cure so keep the patch moist for several days for a stronger fix. Before attempting to fill a hole clear out loose concrete and other debris. Need to fill a gap between two concrete slabs i have two concrete slabs in my back yard that are approximately 15 x 15.