Steve B wrote:
....

What's the secret to getting concrete that will last through freeze
and thaw cycles? There is no real problem with frost heave in this
part of the country. Is it the mix, the sack content? The
aggregate? The working of the concrete? Is it best to buy delivered
concrete, or will doing it yourself be okay if you do it right?


The right mix is important. a book will give you the specs. Don't get
it too wet, as common problem and try for a long cure (don't let it dry out,
it absorbs moisture as it cures). However I noticed that only George has
yet has addressed working it. Over working it is a common problem with
inexperienced people. In the typical job, you want to work it a little to
bring some cream to the top, but too much will make it weak and it will soon
do that flaking off that you have noticed.

--
Joseph Meehan

Dia duit