Then once you have it all prepared and ready to pour.
Pour concrete over rock wall.
Shrinkage cracks in a poured concrete foundation can be diagonal or vertical and are usually uniform in width.
You cannot do this on a high wall as you have to pop the form with the cement is not fully dry or you can t get it off the rocks.
And if a wall is chipping or crumbling it s fair to say the bag was taken off way to early.
3 that video above with the guy putting steel in the bags is my video.
You may want to bring some sand in to help level.
The condition of the existing slab is the primary factor that determines how long the new concrete will last.
Marilyn the big trick is going to make sure that it is level to start with and frame it out.
A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years.
Simply wash the cement off the rocks after you pop the form.
4 i can disprove your theory that the concrete will not set up correct due to water ratios.
Yes you can put concrete over river rock.
Won t this be a problem for the quality of concrete in my footings.
Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan.
Sometimes these cracks have a v shape less frequent with the top of the crack looking larger and the crack getting smaller as it travels towards to floor and diminishing or stopping before reaching the bottom of the foundation wall.
1 i have been doing these walls for 30 years.
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It sure is ok to put concrete against stone foundation i guess u mean something like plaster and not new wall just make sure to add good quantity of concrete against stones so that it binds stones.
2 i have tested several types of bags.
I visited the site of my new home and noticed a lot of water standing where the concrete walls will soon be poured.