Large gap between sidewalk and stone foundation

Old 01-19-15, 07:53 PM
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Join Date: Jan 2015
Location: USA
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Large gap between sidewalk and stone foundation

I have a 12ft length of sidewalk that has a large gap along my stone foundation. The gap ranges from 2-3". Luckily the sidewalk slopes away from the house and the ground slopes downward toward neighbors house which they installed a drainage system. I was thinking of pouring concrete in this gap with an expansion joint up against foundation. Is this recommended?

The rest of sidewalk has smaller gaps...anywhere from 1/4" to an 1". What about the 1" gaps. I know smaller stuff I can put backer rod with some silca or psl20. It is the bigger gaps I am not sure how to tackle. My neighbor mentioned just filling it with mortar mix but have a feeling it would just break apart with weather and movement.

Thank you for your response.
Old 01-24-15, 02:25 AM
Join Date: Dec 2013
Location: usa
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to be sure, that's a hellish width - try this - fill w/fiber reinforced cement & cut in a jnt every 8" or so,,, hopefully the material will crk where you jnt it,,, if that doesn't work, coat w/herculiner you find on ebay - don't laugh - we do it

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