Adding more postcrete after it has set for fence post?

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I set 10 fence posts in postmix/postcrete last weekend, and accidentally didn't fill the holes completely to soil level (varying from 10mm to 80mm from top of hole).

My question is - should I top it up with more postcrete to soil level? Should I fill it with shingle? Should I just put soil over it?

I'm worried about water sitting there rotting the wood away but then thought if I do more postcrete as its two separate layers it might allow water in the gap between the two concrete layers and make it worse as the water would sit in the gap rather than draining away?

Any help appreciated! :)
 
Top if off for neatness sake if you like, you can then trowel a slight slope running away from the post to keep any water from sitting there.
 
Ok cool, so I don't need to worry about filling over again even though the previous stuff has already set?

Was just worried about water sitting between the layers but if you guys say it'll be ok sounds good to me!
 
Ok cool, so I don't need to worry about filling over again even though the previous stuff has already set?

Was just worried about water sitting between the layers but if you guys say it'll be ok sounds good to me!

Thought id dig this old thread up :D

So ive just done the same thing, could do with 3 to 4 inches of concrete... Did you use more post crete in the hole?
 
I fixed a 200x200x1800 gate post with post crete, let it set and then topped up the top with regular concrete - it's been solid as a rock ever since. I don't imagine using postcrete again will be any different.
 
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