"Brikp" writes:
1) Any old. Sacrete is one brand, Quickrete is another. For such a small
hole you will still end up buying a 40lb bag. Should cost under $4.00 IIRC.
2) I'm not sure I have seen pre-mix. Quickrete may have small tubs of the
stuff. They also have a "Hydraulic Cement" that can expand and help plug
water if you have water problems.
3) You can fill the hole completely as long as your mix is not too thin
causing it to slump out. You can use a whisk broom or something similar to
smooth down any irregularities once it starts to set up but before it dries.
4) No, it doesn't shrink or expand, unless its the hydraulic stuff I
mentioned in #2 above. (Hydraulic cement sets up in seconds and is a pain to
work with IMO)

You will need some type of trowel to goop it in there. An old tablespoon
would do. If you use your fingers it will seriously dry out your skin. Some
will advise wearing gloves. Be a man, don't.

If I were you, I would just go ahead and get the smallest bag you can get at
the blue or orange store. Probably 40lbs. Mix up about 1/3 of a bucket full
and see how far you get. you will be surprised by how much you will need if
you fill the holes completely.

See http://www.quikrete.com/catalog/MortarMix.html
and
http://www.usmix.com/Techsheets/sakr...mix/index.html
and for the hydraulic stuff
http://www.quikrete.com/catalog/Hydr...topCement.html
and http://www.quikrete.com/diy/SealingaroundPipes.html

Thanks SOOOO much for the help...