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Is it true that salt can be used to put a slip resistant surface in fresh concrete?

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Salt, in general, is bad for concrete. – DA01 Jun 3 '12 at 19:48

I don't think you'd want to use salt for a couple of reasons:

  • if you have any rebar in there, salt will increase corrosion
  • salt will affect the concrete mix, possibly badly affecting strength

Instead, use one of the polymer grip additives designed for this purpose - they can be very cheap, and some are transparent so do not affect the appearance of the concrete.

An example - I haven't used this one, but there are many available.

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Many people seem to assume Jack was talking about mixing salt into the concrete but I believe he had been told about salt finished concrete. I used this in my new driveway and love the look but of course it is a matter of taste and style.


If slip resistant is the most important parameter, I would recommend a broom finish.


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