Essay On Site Clearance
Site clearance
According to sans 10400.co.za, site clearance is the preparing of a site before the foundation can be laid and the building process can start. This may include: the levelling of the ground, the clearing of all vegetation, such as the removal of trees or other plant material and the removal of rock from the surface. It also includes the demolition or removal of existing building on the site (if needed), and the preparation of the ground (soil type, problem soils and if drainage is needed).
The process of site clearing need to be done according to the National Building Regulations, so contractors and supervisors need to follow the correct procedures. If the preparation of a site is not done properly, it can jeopardise the entire building project.
Surface beds
A surface bed is an un-reinforced slab that is supported by the ground. A surface bed should at least be 150 mm thick and should consist of at least a 15 MPa cast. A surface bed should be layed on hard core or a layer of compacted filling of at least 600 mm thick. Depending on the conditions of the building site, the slab may also require a plastic damp proof membrane, otherwise known as a polyethylene under floor membrane, of at least 0.25 mm thick and no less than 250 microns. The top level should be 150 mm ( or 2 bricks) above the natural ground level.
A concrete
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A strip of the material equal to the thickness of the surface bed is placed between the edge of the surface bed and the element. It is cast against i.e. the concrete column. The same detail will usually be used where the surface bed is cast against the brick perimeter walls. The purpose of this is that the surface bed expands and contracts at a different rate compared to the other elements and the insulation joint allows for this movement, therefore preventing
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