Ribbed and waffle slabs.
Waffle floor construction.
It uses 30 less concrete and 20 less steel than a raft slab.
The construction principle is to adjust the levelness and dimensions of the.
A waffle slab or two way joist slab is a concrete slab made of reinforced concrete with concrete ribs running in two directions on its underside.
Other articles where waffle slab is discussed.
The speed of construction for such slab is faster compared to conventional slab.
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Waffle slabs provide stiffer and lighter slabs than an equivalent flat slab.
Waffle slabs are preferred for spans greater than 40 feet 12 m as they are much stronger than flat slabs flat slabs with drop panels two way slabs one way slabs and.
The construction process involves a building system of concrete slabs that are shored up by columns.
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.
The simplest and most economical floor system is the flat plate where a plain floor slab about 20 centimetres.
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.
Rib spacing of 600 to 1500 mm can be used.
The name waffle comes from the grid pattern created by the reinforcing ribs.
Purpose of waffle slab.
This is due to the simplicity of the construction and the potential to save money in concrete volume.
The prefabricated waffle slab usually costs higher than the other two options.
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.
Thicker floor slab must be used a fully precast slab might be too heavy for the machine to hoist under consideration of the loading limitation of the machine thus the construction of a semi precast waffle slab is adopted.
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 a very good form of construction where slab vibration is an issue such as laboratories and hospitals.
They provide low floor deflections.
Waffle slabs are the preferred method of construction for many project builders and prestige home builders alike.
