Dale buchanan july 3 2010.
Filling between concrete slabs.
The felt that your talking about is an expansion joint filler.
Concrete takes time to cure so keep the patch moist for several days for a stronger fix.
Do the same for the gaps between the concrete slabs but stop filling the gaps about 2 inches from the top of the slabs.
I m well aware that quicker more expensive compounds are available to pro.
Clean the gap of any foreign material using a wire brush.
Examine the size of the gap to determine the repair method.
For gaps 1 4 inch or less in width caulking alone will be.
Then mix the mortar fill in the hole and level it to blend it in with the surrounding structure.
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.
I would not fill it with anything that would stop the expansion and contraction of the concrete slab.
This method is aimed squarely at diyers using cheap readily available materials.
How to fill concrete gaps.
Need to fill a gap between two concrete slabs i have two concrete slabs in my back yard that are approximately 15 x 15.
Start at one corner of the gap and push the brush through using a scooping.
A sealer is soft and able to accommodate the concrete slab s expansion and contraction.
Before attempting to fill a hole clear out loose concrete and other debris.
You might find some heavy duty caulking that would stay.
Sealers and fillers for concrete joints are not the same thing and have very different purposes.
There s a wide ugly gap between my concrete outdoor patio slab and the slab my house is built on.