Waffle Slab Formwork: A Solution to Eliminate Nonworking Concrete

What are used as formwork to eliminate nonworking concrete in the slab in the waffle slab?

a) Concrete blocks

b) Expanded polystyrene pods

c) Steel bars

d) Timber planks

Final answer: Expanded polystyrene pods are used as formwork to eliminate nonworking concrete in the slab in the waffle slab.

Answer:

The correct answer is b) Expanded polystyrene pods.

In a waffle slab, expanded polystyrene pods are used as formwork to eliminate nonworking concrete. The pods are placed in between the steel bars or reinforcement mesh before pouring the concrete. These pods create voids in the slab, reducing its weight while maintaining its strength.

By using expanded polystyrene pods as formwork, the efficiency of the construction process is increased as it helps in reducing the amount of concrete needed. This not only decreases the overall weight of the structure but also ensures that the strength of the slab is maintained.

Furthermore, the use of these pods helps in creating a more sustainable construction method by reducing material waste. The voids created by the pods also allow for better insulation of the building, improving its energy efficiency.

Overall, the incorporation of expanded polystyrene pods as formwork in waffle slabs is a practical and innovative solution to eliminate nonworking concrete while improving the structural integrity and sustainability of the construction project.