Typically, the thickness of the monolithic slab is from 15 to 35 cm and depends on the size of the future building. When using an electric vibrator, a uniform layer and stronger concrete are obtained.
For example, we can give the calculation of a 9 × 9 m slab. It will be necessary to take 81 m² of thermal insulation, waterproofing will take more, it is necessary to take into account the overlap and that it will be used in two layers. If the cell size is 15 cm, one belt will require 9 × 15 = 60 pcs. transverse rods. Two belts will need 120 pieces. bars of 15 cm and 240 pcs. 9 m each, vertical rods added as needed
Wire need 60 × 60 = 3600 pcs. 30 cm per layer or 7200 pcs. in two layers.
When calculating the required amount of concrete, the slab area is multiplied by its height 9 × 9 × 0.3 = 24.3 m³. (more…)