I think i spent about 500 more doing it this way than concrete.
Foam instead of concrete for post.
When i say high density foam i mean a foam that takes a claw hammer to penetrate after it sets up.
The disadvantage is the cost of the foam is higher than concrete.
Concrete is cheaper and pretty fool proof vs.
The foam will fill up the parts of the concrete that are uneven and will raise it to the proper height.
You can t dig it out with your hand.
The spade end was perfect for breaking up the existing concrete and then i extracted it with post hole diggers.
The first step is to drill holes in the problem concrete.
Has anybody used post setting foam in place of concrete for post footers.
The foam like i said in the post there were possible issues with maybe the weather or the depth of the hole etc but if the whole point is to beat concrete i still say this failed in that respect.
I used one of the heavy steel digging bars with a narrow spade on one end and an enlarged tamper on the other end.
For more information check out this video.
If you re doing it right you wait a long time.
Suitable for all types of posts including wood steel and pvc.
Expanding foam is a lightweight waterproof alternative to concrete for homeowners wanting to set fence posts.
Is this foam replacing concrete.
The foam can be used in hot or cold weather and does not require mixing with water or.
It is mixed in the bag to produce expanding foam for supporting and backfilling fence mail box gate and signage posts.
I used 4 braces per post.
The soil was a heavy black clayey soil.
Sika postfix is a two component pre proportioned polyurethane resin.
Remember the last time you set a fence post.
You did the hole level the post pour the concrete then wait.
Lightweight pouch replaces two 50 lb.
Editors comments yes you can use the new foam that is available to stabilize support posts.
Holes should be no less than six inches away from the edge of the concrete.
Bags of post mix.
But make sure the post is treated for ground contact and that you follow these principles for footings.
It was worth it to me.