I would like to mix up a few cubic feet of air entrained structural concrete so I can repair some water damage to an exterior wall on my New England home. (Recommended by a local professional mason to prevent further damage.)
Unfortunately none of the big hardware stores seem to carry Quikrete Q-Max Pro any more, and none of the other mixes mention air entraining.
Is there a commercial product or effective home-made substance I can add to a concrete mix to entrain air during the mixing?