Spalled concrete floor patching


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Old 03-06-22, 08:11 PM
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Spalled concrete floor patching

A lot of areas on these floors have large spalleds. I've used Rapid Set Cement All for some spots and that has held. In others in eventually breaks up: I'm pouring it and trowing to level the floor so I get the sections that I feather out don't have much to grab. Plus the floors are so old and dirty its tough to get them clean enough with prep. I use a wire cup wheel on my angle grinder with a dust collecting shield to get the dust.

My question is: Are there any other products you'd recommend that may yield better and lasting results? Any epoxies to pour? The depth of these spalls is maybe 3/8-3/4" at most. Or other prepping methods or tools to better abrade the concrete?

Thanks!
 
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Old 03-07-22, 12:14 AM
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They make special patching products, I have one that was recommended to my but the brochure is at work, I 'll get that tomorrow.

Patching is wholly dependent on how clean the concrete is, anything on the surface and your bond is compromised.

Also exterior applications are more difficult, especially in freeze thaw locations,
 
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Old 03-07-22, 06:09 AM
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The material is Tammspatch II
 
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Old 03-08-22, 04:51 PM
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I'll check that product out!

Any thoughts on tools to prep? All I have now that I've been doing is using my angle grinder with a cup wheel.
 
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Old 03-09-22, 12:45 AM
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Power washer, clean, clean, clean!
 
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Old 03-09-22, 08:09 PM
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Its indoors so power washing isn't any option, unfortunately.
 
 

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