Structural Behaviour of Bubble Deck Slabs and Its Application: an Overview

The Bubble Deck slab is a newly designed biaxial concrete floor slab system. High density polythene (HDPE) hollow spheres are placed in the center of slab by replacing the ineffective concrete its decreases the dead weight so increases the efficiency of floor. It have many advantages over normal solid conventional concrete slabs it decreases the cost and reduces material used and also enhances the structural efficiency of the slab it decreases the time of concentration and is a green technology. Through the test performed on models, Bubble deck was proved as better slab in comparison to solid concrete slab. The reduced dead load gives better response and more economical for the structure while offsetting the slight increase in deflection of slab. The punching shear & shear resistance of bubble deck floor is low in comparison to conventional solid slab since it is directly related to depth of concrete. for reduction of these differences in strength, the reduction factors have been suggested.