bubble deck slab

Project:www.sefindia.org
Component:Miscellaneous
Category:support request
Priority:critical
Assigned:uma.rao1679@gmail.com
Status:active
Description

sir i have many doubts regarding the bubble deck slab:

how does the adhesion between the bubble (recycled ball) and concrete will take?

and why the balls placed only in middle of the slab?

in the bubble deck slab the reinforcement used is large to hold the balls in position so is this economical?
why it is not implemented in india?
how is the design be done?

thanking you sir