Bonding new concrete to existing concrete?


Old 05-29-16, 05:43 PM
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Question Bonding new concrete to existing concrete?


Please see attached images below, I noticed the side wall of my concrete patio was coming apart so I decided to remove it. The last image is the other side of the wall, and it's what it originally looked like before I took it off.

What would be the best way to bond new concrete to the existing concrete wall? Should I use one of the following Sakrete products? Not sure which one would be the best to use.

Top N' Bond: SAKRETE 10 lb. Top 'N Bond Concrete Patcher-65455001 - The Home Depot
Flo-Coat Resurfacer: SAKRETE 20 lb. Flo-Coat Resurfacer-65450007 - The Home Depot
Cement Patcher: SAKRETE 20 lb. Fast Set Patcher-60200630 - The Home Depot

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Thank you!
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Old 06-01-16, 04:40 PM
BridgeMan45's Avatar
Join Date: Oct 2011
Location: USA
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A clarification of terms is in order--you want to bond new, thin surfacing material to existing concrete, and not new concrete to existing concrete.

Play it safe, and use the bonding agent recommended by the manufacturer of the specific product you choose. It will be listed right on the instruction sheet, or if you need more advice, call the manufacturer's 800 number for tech support.

P.S. There are no walls in your photos, only edges of a concrete slab.
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