Topic: bubble deck technology bubble deck slab uses hollow spherical balls made by recycled plastic and therefore it is an innovator method of virually eliminating the concrete part in the middle of conventional slab.bubble deck slabs are suitable for use in all building types especially in commercial , educational& institutional building. the system eliminates secondary supporting structure such as beam bubbledeck is usually manufactured as partly pre-cast element.the site erection and installation is simple and fast.it is one of the green and sustainable method.in this cross batching and intermediate support are also eliminated.