Thanks for the replies. Keem them coming. It's nice to have a USENET
group that is not only a community, but that hasn't been taken over by
spam.
I forgot a step: brush with something like a broom to give it the same
rough texture as the rest of the sidewalk and more grip.
The Sand/Topping Mix is specifically made to go down to 3/8 inch
without chipping; especially so, in that I don't live in a freeze/thaw
zone. And 3/8 inch is acceptable under the Americans with
Disabilities Act.