Waffle Floor Construction

Waffle slabs provide stiffer and lighter slabs than an equivalent flat slab.

Waffle floor construction.

Relatively lightweight hence economical. The simplest and most economical floor system is the flat plate where a plain floor slab about 20 centimetres. Ribbed and waffle slabs. Other articles where waffle slab is discussed.

The overall depth of the floor typically varies from 300 to 600 mm with overall spans of up to 15 m if reinforced longer if post tensioned. Ribbed and waffle slabs provide a lighter and stiffer slab than an equivalent flat slab reducing the extent of foundations. The construction process involves a building system of concrete slabs that are shored up by columns. Waffle moulds are a reusable formwork system for constructing two way spanning ribbed concrete floors which can achieve greater spans and use less concrete when compared to traditional flat slabs.

The speed of construction for such slab is faster compared to conventional slab. The construction principle is to adjust the levelness and dimensions of the. Rib spacing of 600 to 1500 mm can be used. The prefabricated waffle slab usually costs higher than the other two options.

This is due to the simplicity of the construction and the potential to save money in concrete volume. Waffle slabs are the preferred method of construction for many project builders and prestige home builders alike. Purpose of waffle slab. It uses 30 less concrete and 20 less steel than a raft slab.

Of pan joists called the waffle slab uses prefabricated hollow sheet metal domes to create a grid pattern of voids in a solid floor slab saving material without reducing the slab s strength. They provide low floor deflections. We would like to show you a description here but the site won t allow us. Slab depths typically vary from 75 to 125 mm and rib widths from 125 to 200 mm.

They provide a very good form of construction where slab vibration is an issue such as laboratories and hospitals. The name waffle comes from the grid pattern created by the reinforcing ribs. Manufactured from filcor with an external polypropylene skin each waffle mould is made to suit the individual requirements of the project and can. The monolithic poured concrete will form a flat top surface while the rectangular grids form deep concrete beams on the underside with the beams resembling waffle.