In alt.home.repair, on Thu, 27 Sep 2018 00:22:27 +0300, Miroslav Svoboda
wrote:

I need to erect a sign post where I have it all ready but a neighbor said I
should use concrete.

I was just going to hammer it in by using a step ladder and long handled
mallet.

Here is a picture of the sign post which is u shaped heavy steel
http://img4.imagetitan.com/img.php?image=18_posts.jpg

The soil is hard to describe. It's dry and mostly fine grained. Bigger
grains than sand. Smaller grains than pebbles.

Winds can get to a good speed. Other than winds, I'm not sure what else
will knock it down.

I never put a sign in the ground before.
I never used concrete either.

How deep should it go?

At least 2 feet. Others who know more may say more.

There is a half bag of dry concrete mortar in the basement along with all
the paint buckets and other materials that came with the house from the
previous owner long ago (fifteen years).
http://img4.imagetitan.com/img.php?image=18_mortars.jpg

How deep would you hammer it in if you were to hammer it in?

At least 2 feet. Others who know more may say more. Put a block of
wood on top of it before hammering, to not mess it up.

If you concrete it, what's the SIMPLEST CHEAPEST way?

I don't know much about mortar mix so 'm not sure what's in your bag,
whether it has to be mixed with sand or anything -- maybe not -- and if
it got wet during all this time, it might have hardened (or gotten
ruined without hardening??) But I've had stuff in my basement for a
few years that was still good. If it something can last 4 years, it can
last 15, in my opinion.

I actually did spend a few days putting in posts, and the guys who
started before me used Redi-Crete, or some other dry, premixed powder to
which you just add water. But they found to save time, they'd dig the
hole, pound the post in below the bottom of the hole, pour in the
redi-crete and leave it. We were nowhere near plumbing and they'd use
the moisture in the soil to harden the concrete. They'd been doing this
on weekends for weeks and it worked. I drive by some of these posts and
they are still standing 20 or 25 years later.