DESIGN AND EXPERIMENTAL ANALYSIS OF BUBBLEDECK SLAB

Abstract

Bubble deck, which is another name for voided slabs whose core is placed with HDPE balls that may be of different shapes and sizes is a technology that is presently procuring awareness around the world as a result of its enormous positive effects on the whole structure; this include its reduced weight, economical and mutability in terms of slab span. This research work has focused on the use of bubble deck in construction industry. Concrete grade of M35 was used. Two slabs were casted, one with HDPE Balls and the other without balls. The slab without HDPE balls (conventional slab) was casted with (78.13 kg) of concrete. On the other side the slabs with bubbles, which has spherical balls of size 60mm in which (63 kg) of concrete was used with B/H ratios of 0.48 and 49 spherical balls respectively. A total 24% of concrete was saved in the Bubble Deck slab. Considering the percentage of concrete saved, one slab was designed usually and in another a 24% reduction in dead loads was assumed and further designed was carried out. Costing of both the slab was carried out and comparison was done. In experimental analysis, destructive and non- destructive test was carried out on both the slabs and result has been compared . Key Words: RCC Slab, HDPE Balls, Reinforcement mesh.