The concrete slabs of the ground floor are placed on the natural levels of the terrain. These are normally launched after the completion of the foundation works. There is a difference between them and basements.
Basements are made below ground level and formed above. They can be used in homes, sheds and outdoor shelters. When throwing them, the level should be reduced by about two hundred millimeters. This ensures that the top topsoil is dug up and removed.
The ground floor concrete slabs are solid and not suspended like the floors above this level. Preparation begins after the foundation and walls are finished. The sides of the walls are internally and externally padded back. To know more about concrete slabs visit http://maxraft.co.nz/.
After this, the ground is leveled and compacted to receive the hard base. This is an average of three hundred millimeters deep. Proper compaction and consolidation is performed. This is the base for the concrete that is formed.
After compacting and leveling the core of the ground floor slab, the blind is placed. The blinding can be quarry dust, gravel, sand or murram. An anti-termite treatment is then sprayed on these surfaces. The formwork for the concrete is then attached to the edges of the foundation wall.
This is the thickness of the concrete. The thickness of the concrete is from one to one hundred and fifty milliners. The height from the stripped level is three hundred millimeters.
On the concrete of the ground floor, waterproof membranes are laid after blinding. A mil-gauge diothene sheet is used for this. The next mesh reinforcement is placed on top of the sheet. After this concrete is mixed and poured on top.
Leveling is done with the working height of the formwork. Concrete mixes consist of one part cement, two parts sand and four parts ballast. After casting, the concrete is irrigated for at least seven days to cure. Then you can proceed with the laying of walls.