Abstract
As we know that in a roof slab, the upper portion bears compressive loads whereas the lower is subjected to tensile load. While bricks or concrete absorb the compressive loads on the upper portion of the slab, tensile strength is imparted by the framework of steel rods on the lower side. The filler slab is a mechanism to replace the concrete in the tension zone. The filler material, thus, is not a structural part of the slab. By reducing the quantity and weight of material, the roof become less expensive, yet retains the strength of the conventional slab. After years of research and development, engineers came up with the filler slab as an alternative even with Coconuts shells or with handmade pots as roofing slabs. Despite initial hesitation in accepting the new technology, the filler slab One way to make a boring and expensive concrete slab lighter and cheaper is to use a 'Filler Slab'. A filler slab is where we replace a portion of concrete in the 'tension' zone of the slab with inexpensive lightweight filler materials such as coconut shells and pots.