Everything you see above ground stands on several layers below it. Scroll to see them for a reinforced slab or a strip foundation. Below is a calculator for how much concrete you need.
The topsoil is stripped, the ground is dug down to firm soil and the bottom is compacted. How deep to dig depends on the design and the ground conditions at the site.
For a slab, the whole area under the building is excavated.
For a strip foundation, trenches are dug under the walls.
A compacted layer of gravel. It spreads the load and stops moisture rising from the soil.
A thin layer of lean concrete. It gives a clean, level base so that the reinforcement sits at the right height.
A bitumen membrane that stops moisture passing from the soil into the concrete and into the walls above it.
For a strip foundation, the waterproofing also wraps the sides of the strip.
Concrete takes the compression, steel takes the tension. The reinforcement sits on spacers so that concrete covers it on all sides.
In a slab, these are two meshes, bottom and top.
In a strip, these are longitudinal bars and links tied into a cage.
It is poured in one go and vibrated so that no air bubbles remain. Then it is kept wet for a few days while it gains strength.
Above ground, only the top surface of the concrete remains. Change the foundation type at the top right or in the calculator below.
To the calculatorStripping the topsoil, excavation, carting away the spoil, levelling and compaction.
Formwork to the dimensions in the design, and reinforcement tied and checked before the concrete.
A slab under the whole building, with gravel, blinding and waterproofing beneath it.
Strips under the walls and individual pads under the columns.
Choose the foundation type and enter the dimensions. The calculator gives the concrete volume with a margin, the number of truck mixers and the layers under the foundation.
The concrete class, the reinforcement and the depth come from the structural design. The calculator covers volumes only. The calculation is approximate and is not a quote.
We look at the ground, the access for machinery and where the building will stand.
The grid lines from the design are marked on the ground with pegs and string lines.
Down to firm soil, with a compacted bottom.
Formwork, reinforcement and anchors set by template. Everything is measured before the concrete.
Poured in one go, vibrated and then kept wet.
The concrete gains strength for about two weeks. It is not loaded during that time.
It depends on the soil, the building and the design. A slab spreads the load over the whole area; strips carry it under the walls.
Down to firm soil and below the frost line. The exact depth is in the design.
Concrete gains strength for about two weeks. How long to wait before loading it is set by the design.
Yes, with admixtures in the concrete and with covers, but in a hard frost we wait.
We come to the site, anywhere in Bulgaria. The price and the timeline follow the visit, in writing.
or call 0884 420 445
Process
Configurator
Anatomy
