I seen them fix wobbly / leaning over power poles with that aerosol expanding foam stuff, maybe thay could be used ?
cwag,
Sep 6, 1:34pm
I need to do a temporary fix on a fence until it is replaced next year. Wood posts (about 125mm sqare) are set in concrete but have come loose and can be wobbled from side to side. There is a small gap about of about 15mm around the post where it goes into the ground.
There are 3 posts that I need to deal with (out of 12), so the fence isn't in danger of falling over but I would still like to tighten these ones.
It isn't practical to remove and replace them. I am thinking of hammering some steel wedges around the posts to tighten them
Any other ideas?
And before the experts suggests pulling them out and doing it once and doing it properly please note that I am looking for a temporary solution until the fence is replaced.
tegretol,
Sep 6, 3:25pm
Where is the gap - between the post and concrete or between the conrtate and the soil?
Is the fence really in danger of falling over? I presume the danger is the prevaliing wind pushing the fence in one direction? To push it over the post has to break or collapse in the ground. Its got to go a long way from showing a 15mm gap to collapse. Any way I suggest 2 options. Brace the top of the post some how. Tie it back or put in a stay. The diagonal stay can be fastened to a post dug in the ground just as a tieback can be attached to a post. Which you use will depend on if the fence is falling to or away from the side you want to work on. Main disadvantage is its a bit unsightly. Probably a better way is to bury a block across the base of the post on the side it is falling to. A length of timber or concrete will do. In order to collapse the post has to push this extra obstacle and not just the posts 125mm through the soil. But I suspect if its in a reasonable soil, clay, and the posts are a reasonable depth in the ground (600mm or more) it will wobble around but is unlikely to collapse. Though obviously you are in a better position to estimate the risk than I
happychappy50,
Sep 6, 7:17pm
Bang in some Waratah standards,tie themoff to the offending posts,all done!
cameron-albany,
Sep 6, 7:21pm
I've got this problem. We dug and concreted in some posts last year for a vege garden and chicken coop and didn't do a very good job on a couple of them and now they're wobbling like you describe. We've just not worried about it too much (although obviously it's not a "fence" fence so we don't have the same sort of cosmetic appearance to worry about). Having said that, we actually put a bit more quickcrete into the holes. We levelled them up then just chucked in some more quick set concrete and they're good again. Cheap and easy. Obviously not a long term fix but will do the job. (In our case for probably a few more years! ) In your case it could definitely last a year until you can properly re-do them. As grrrahaaam said above, as long as the posts are reasonably well-set into the ground, there is little chance of collapse. Unless you have a tornado :-)
trade4us2,
Sep 6, 8:17pm
Just hit the ground around the post with a sledgehammer, or a piece of pipe, and fill the holes with firm soil. If you didn't have concrete in the hole it would be easier to tamp.
webworth,
Sep 17, 5:53pm
Plastic wedges would be less likely to chip or crack the concrete. Probably cheaper too.
grrrahaaam,
Sep 17, 6:48pm
Cut some wedges from ground treated timber, or even not ground treated if not a long term solution, cheaper than buying plastic, steel etc. ,
ianab,
Sep 17, 7:12pm
A bag of "ready mix" concrete? The stuff you lay down then just wet to make it set. Stuff as much as you can into the gap, run the hose over it and walk away. It doesn't have to be strong, just fill the gap with something solid, and as you say, it's only temporary.
mggd,
Mar 16, 12:56pm
Pour in some pea shingle
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