Slab is largest member which consumes concrete. If the load acting on the slab is large or clear span between columns is more, the thickness of slab increases. It leads to consume more material such as concrete and steel due to this, self-weight of slab is increased. To avoid these disadvantages voided slab system is used. Reinforced concrete slab with plastic voids is a new and innovative type of construction. It is developed to allow for lighter self-weight of the structure while maintaining similar load carrying capacity of a solid slab. High density polyethylene (HDPE) hollow spheres replace the ineffective concrete from the centre of the slab and decrease the dead load. The advantages are less energy consumption both in production and transport, less emission of exhaust gases from production and transport, especially CO2 and reduce the material, the load, lower the cost and it is also a Green Technology. The Bubble deck slab floor system can be used for storey, roof and ground floor slabs. The effect is to decrease the overall weight by as much as 35% when compared to a solid slab of the same bearing capacity.
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