Hi Knowledgeable people,

I've just dug up old fence concrete bases etc as fence blew down. Re done concrete bases, put posts up etc.

And now I am looking at the concrete and am worried I've added too much SAND! Panic!!

I looked up the ratio online: aggregate, sand, cement, 4, 2 ,1 I think and bought ballast, sand and cement.

I followed the ratio, with 4 ballast, 2 sand, 1 cement etc. However, I'm worried that the ballast having various size clippings in down to sand, meant I didnt need to add the sand?

Will my concrete last?

1 Answer 1


Fence-post bedding is a non-challenging job and on that basis, don't stress about it too much.

Your mixture sounds perfectly good - the usual place folks go wrong is adding too much water, but see the first sentence of this answer.

  • 1
    I agree you could have used 100% sand and it would work , I have seen beach sand used in coastal areas with no rock. I have always used 3,2,1 or get a concrete mix then 5-1 . But fence post are contained by the hole not like a slab, I have a friend that has plastic molds and makes bird baths and “yard art” with mostly sand.
    – Ed Beal
    Feb 7, 2020 at 16:30
  • Thank you very much for your answers. 👍
    – RogerDodge
    Feb 8, 2020 at 18:18

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.