Simply wash the cement off the rocks after you pop the form.
Pour concrete over rock wall.
Then once you have it all prepared and ready to pour.
And if a wall is chipping or crumbling it s fair to say the bag was taken off way to early.
Yes you can put concrete over river rock.
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.
The condition of the existing slab is the primary factor that determines how long the new concrete will last.
You may want to bring some sand in to help level.
All the pre cast concrete panels and pre cast concrete slabs 26 are interlocked together by the introduction of steel bars 28 through links 8 extending from the pre cast concrete panels adding wire mesh 38 and top bars 40 on the pre cast concrete slab and pouring concrete over the steel bars wire mesh and top bars to provide a.
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Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan.
Shrinkage cracks in a poured concrete foundation can be diagonal or vertical and are usually uniform in width.
1 i have been doing these walls for 30 years.
I visited the site of my new home and noticed a lot of water standing where the concrete walls will soon be poured.
If you make a cement retaining wall you can set rocks against the wall as you pour the cement you can create a rock wall.
Won t this be a problem for the quality of concrete in my footings.
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.
A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years.
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4 i can disprove your theory that the concrete will not set up correct due to water ratios.
Marilyn the big trick is going to make sure that it is level to start with and frame it out.