A concrete topping involves covering a worn-out concrete layer with a stronger concrete layer. The process consists of laying a layer of concrete on top of an existing concrete slab to finish the surface.
Types of Concrete Topping
Bonded Topping Slab
Concrete toppings are adhering to or bonded to the concrete slab underlying them in this type of slab. Traditionally, attached slabs are both structurally and functionally useful. It is possible to use Bonded Concrete Slabs for both lightweight and heavyweight slabs. A bonded concrete slab must be at least 1 to 2 inches thick.
Un-bonded Topping Slab
A Topping Slab of this type is not bonded to the underlying concrete slab. The two slabs do not connect.
There is no mechanical attachment or bonding between the top layer of concrete and the structural floor beneath. When two slab courses are to move independently of each other or when the topping slab is to replace & un-bonded systems are used. Ideally, the construction should be un-bonded and at least 100mm thick. The base slab contains cracks, or the bonding is partially or ineffective.
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Published By
Arka Roy
www.constructioncost.co
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