I have for some time now purchased the ready mix concrete and put in place dry...I give it a light spray so it does not blow around..if it is on the ground it draws up moisture over the next week ..if covered as in the case of my recent piers I water them each day for a week..if I remember that is...but I see no negative results and I believe there is a case for suggesting the concrete is stronger...I chose this way as it is all I can do...there is no way I could have put in the last two piers if I had to go wet...even the original first pier I did this way.
It is probably more 3xpensive than mixing your sand, cement and blue metal but as I said there is no other way that I could do it.
Alex
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