My concrete driveway has eight large slabs.
Filling big gaps in concrete.
This will hopefully be the fix that keeps that wall of the sunroom nice and dry.
The gap in question was previously filled with either fiberboard or concrete crack sealant but enough of it has deteriorated to conceivably allow moisture in.
I wish i had taken a picture of this so i could show you exactly what i m talking about.
After hurricane harvey took out a big tree in my driveway and caused some serious cracks i made a time lapse video of fixing them this is not a how too t.
Clean the gap of any foreign material using a wire brush.
In some places where two steps meet at about a 90 degree angle there is a rather large gap of a half an inch to an.
Start at one corner of the gap and push the brush through using a scooping.
The straight line gaps between the slabs has enlarged and some cracks are as wide as 2 inches.
How to fill concrete gaps.
Examine the size of the gap to determine the repair method.
The driveway slopes down from my garage to the street.
To remedy this issue i installed backer rod in the gap that i then covered with concrete crack sealant.