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-   -   Concrete sidewalk to foundation gap. (http://www.diychatroom.com/f19/concrete-sidewalk-foundation-gap-114542/)

Khamul 08-18-2011 07:53 PM

Concrete sidewalk to foundation gap.
 
Hi All,

I have an old house, approaching 90 years old. The entire house is surrounded by concrete either a pad for the patio or sidewalks. There is a Gap between the concrete and the house itself, in some places as much as half an inch or more. It is filled with gravel, weeds, you name it. It looked like it was caulked at one point but by what I have no idea. I am trying to seal it as we have water issues in the basement. What is the best method to seal this gap between the house and the concrete? I was debating pouring more concrete in but if the pad shifts, it will just crack again.

Any help would be most welcome!
Thanks in Advance.

Marbledust 08-18-2011 07:55 PM

Concrete tilt up guys hire a caulking crew to seal the panel gaps.
I think the product you are looking for is rubber based and may be called buytle>?

Ron6519 08-18-2011 08:59 PM

It was an expansion joint. Clean out the joint and use a self leveling sealant. Sika makes a product you can use. If the gap is too deep, insert a backer rod 1/2-3/4" below the surface and cover it with the sealant.
The gap needs to be clean and dry.
Mason supply stores and Home Depot carry the product or another brand.

kchunt 08-19-2011 01:30 AM

concrete sidewalk to foundation gap
 
prep-prep,clean clean very good,backer rod excl. choice.try to mantain 1/2" deep for caulk,something
that stay plyable.Not HD/or other box stores.Keep caulk a little high,as the concrete expans,the caulking will move with it.the backer rod is a round foam materal like rope.We do use it on bridge decks as well as tilt-up construction. ken--.


We all no alot but can only do a little-----.


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