An Experimental Analysis of Flexural Behaviour of the Bubble Deck Slab in Comparison with Conventional Concrete Slab

Reinforced concrete slabs are one of the most common components in modern building construction. Efforts are being continued from past decades to reduce the dead weight and to improve the performance of the slab. Bubble deck slab system are a new and innovative type of structural concrete slab system developed to allow for lighter self-weight of the structure while maintaining similar load carrying capacity of a solid slab. In these slabs shear and punching shear resistance of the BubbleDeck floor is significantly less than a solid deck since resistance is directly related to the depth of concrete. In this work efforts are made to understand the load deflection behaviour of bubble deck in compersion with the conventional slab system. Quantity estimation results showned that there was a considerable reduction in the weight of concrete in case of bubble deck slab. A scaled down models are tested under nine point loading system to determine the load and deflection behaviour of both the slabs. Test results have proven that the bubble deck slab system is more efficient in carrrying more load and undergo more deflection compared to conventional rcc slab system.