Sealing gap between concrete sidewalk and stone foundation

Discussion in 'Bricks, Masonry and Concrete' started by Cincinnatikid, Oct 17, 2017.

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  1. Oct 17, 2017 #1

    Cincinnatikid

    Cincinnatikid

    Cincinnatikid

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    Hi all,

    I was looking to seal the gap between my sidewalk and foundation that runs the length of the house on both sides before winter this year. It is a wider gap, probably a 1/2" or more most of the way. I have been able to get foam backer rod in and a polyurethane concrete sealant product is what I plan on using.

    But in spots the gap is much wider. Talking 2-3" wide and maybe 4-5" deep before it hits anything. Are there any suggested means of tackling these particular spots? I thought about filling it with something (sand) so that it's not too deep for the backer rod and then just twisting a few rods together so that they cover the width better, then going over with the sealant.

    I'm sure ya'll have some suggestions and I'd love to hear them!

    Thanks,

    Scott
     
  2. Oct 17, 2017 #2

    frodo

    frodo

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  3. Oct 18, 2017 #3

    Cincinnatikid

    Cincinnatikid

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    Appreciate the response.

    My only concern with that solution is the inconsistent edges on both the foundation wall (stone) and the concrete sidewalk.

    Pictures of some spots for reference are attached. Hard to see but in last photo with hand in the gap I can get over half hand in and reach under the actual concrete slab.

    IMG_2595.JPG

    IMG_2596.JPG

    IMG_2597.JPG

    IMG_2598.JPG

    IMG_2599.JPG
     
  4. Oct 18, 2017 #4

    frodo

    frodo

    frodo

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    pack th hole with sand, then use a concrete crack sealant flexable
     
  5. Oct 28, 2017 #5

    HandymanHawaii

    HandymanHawaii

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    ide be looking at epoxy concrete products, sir ... thx :agree:
     
  6. Oct 28, 2017 #6

    slownsteady

    slownsteady

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    Would we correct in assuming that you are from the Cincinnati area? Do you have a deep freeze /thaw cycle there?
     
  7. Oct 29, 2017 #7

    HandymanHawaii

    HandymanHawaii

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    I totally agree with this - 1/2 in. x 4 ft. x 8 ft. Southern Pine Asphalt Impregnated Board - that's great barrier filler" thanks for the details" ile use this application in my next addition :agree:





    Durable product
    Guards against water, air penetration
    1/2 in. x 4 ft. x 8 ft. Southern Pine Asphalt Impregnated Board
     

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