Pour Concrete Over Stone Wall

I don t like to pour new concrete any thinner than 2 inches thick when i pour over existing concrete.

Pour concrete over stone wall.

Excavate the soil to a depth of 8 inches allowing 4 inches for the gravel base and 4 inches for the concrete slab. Here s the catch if the existing surface is somewhat in a structurally sound shape and elevating its height to a few inches won t be a problem you can certainly freshen it up with a new layer of concrete. Sheets of lath installed higher up on the wall are centered above the lower sheets of lath so that the sheets are staggered like bricks on a wall. The minimum thickness i pour new concrete over existing concrete.

Pouring concrete over the existing one. Smooth the surface using a two by four or float then add texture as desired using tools or a broom. The edges of the lath are overlapped by approximately 1 inch. The concrete block wall takes the job of retaining while the stone is for looks only.

The new wall thickness will depend upon how thick your stone wall is and how badly bowed the stone wall is. If you re building a really big wall pour them even thicker taller because the concrete footing will need to support more weight. 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. Wet the concrete thoroughly and then cover it with the sheeting of your choice using bricks rocks or other heavy items to hold it in place.

Using some small scraps of rebar tie them with wire between the two mats to keep them separated when you pour the heavy concrete. I feel like pouring new concrete that s two inches thick over old existing concrete that s solid and sound is plenty thick enough for most applications. My last wall was basically twenty four inches thick but twelve inches thick is a minimum you should build. Height vertical thickness of the concrete footing.

It does depend on what purpose the wall is performing. For example a retaining wall higher than 600mm usually needs engineering by a structural engineer which is easier to achieve with core filled concrete block on footings rather than just solid stone. Spread the new concrete over the surface filling the entire area within the form you created. The soil should be graded or sloped so the excavation site s center is slightly.

It s best to pour the concrete footings thick when building mortared stone walls. After the lath is installed on the wall mortar is mixed and scraped onto the metal lath with a trowel.