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Best concrete for setting locast posts ?

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Best concrete for setting locast posts ? James 06-15-2007
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Posted by Art on June 15, 2007, 9:49 pm
James wrote:
> I am building a split-rail fence out of locust rails and posts. The posts
> will be set about 8 feet apart. I plan to dig postholes about 18 inches
> deep, and set the posts into concrete.
>
> What is the best method, and type of concrete ? My thinking was to use
> Quickcrete fast-setting concrete. With similar things in the past, I have
> mixed the concrete with water, and poured the mix in and around the post.
> But, it seems that I have heard that other folks just pour the dry power in
> the hole around the post, and allow the moisture in the surrounding soil to
> harden the mix. Others pour in dry, and then just add a modest amount of
> water in the hole.
>
> What is the preferred method ??
>
> Thanks for any advice on this !!
>
> James
>
>

Just plain sand works great. The only posts that should be set in
concrete are the ones that need to support a gate.

--
Art

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Posted by James on June 15, 2007, 10:08 pm
Nope, sorry. Gonna use concrete. My question relates to the best
concrete, and the method to plant them.

thanks !!


James



Posted by gpsman on June 15, 2007, 10:57 pm
> Nope, sorry. Gonna use concrete. My question relates to the best
> concrete, and the method to plant them.

The best concrete to set posts is none. A couple inches of gravel in
the bottom and ALL the dirt back in the hole is the "proper" method.

And 18" is too shallow; a waste of, time, effort, money -and- concrete
if you're still set on using it. 30" is minimum and probably code,
and 36" is better.

Locust is the best choice for the posts, but you'd be better off
setting them on fire rather than in concrete. Nothing lasts forever,
try digging out a post set in concrete. By the time you're finished
you'll have changed your mind, if you live through it.

The concrete mix doesn't matter, any one will rot your posts as well
as another.
-----

- gpsman


Posted by Big_Jake on June 15, 2007, 11:36 pm
>
> > Nope, sorry. Gonna use concrete. My question relates to the best
> > concrete, and the method to plant them.
>
> The best concrete to set posts is none. A couple inches of gravel in
> the bottom and ALL the dirt back in the hole is the "proper" method.
>
> And 18" is too shallow; a waste of, time, effort, money -and- concrete
> if you're still set on using it. 30" is minimum and probably code,
> and 36" is better.
>
> Locust is the best choice for the posts, but you'd be better off
> setting them on fire rather than in concrete. Nothing lasts forever,
> try digging out a post set in concrete. By the time you're finished
> you'll have changed your mind, if you live through it.
>
> The concrete mix doesn't matter, any one will rot your posts as well
> as another.
> -----
>
> - gpsman

I guess I will at least answer your question -

Most big home centers carry "post-set" concrete. You dig the hole,
put the post in (with space around it) fill the space around the post
with dry mix, add water, and mix it up by pushing a pc of rebar up and
down in the "soup". Sets quickly, works fine and is very convenient.

JK


Posted by Bob on June 16, 2007, 6:37 am

><snip>
>
> I guess I will at least answer your question -
>
> Most big home centers carry "post-set" concrete. You dig the
> hole,
> put the post in (with space around it) fill the space around the
> post
> with dry mix, add water, and mix it up by pushing a pc of rebar up
> and
> down in the "soup". Sets quickly, works fine and is very
> convenient.
>
> JK
>
Sorry, but I must respectfully disagree about putting dry mix in the
hole.
I have seen this done, but I have never seen it work well - fences
were always leaning within 3 or 4 months. It is not possible to
mix the concrete in the hole - there will always be dry pockets no
matter how much poking and prodding is done.

Mix your concrete in a wheelbarrow and pour it into the hole.

Bob-tx



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