Polystyrene Block Slab System

The polystyrene block system is made from high density polystyrene and is a convenient and economical alternative to the traditional ash block system.

It has many advantages:

• The polystyrene blocks result in a reduction of approximatley 1,6kN/m² of dead load from the slab making design cheaper

• Because it is upto 90% lighter than the ash block system it is significantly easier and quicker to install and allow last minute changes

• There are fewer breakages during delivery & installation

• The polystyrene layer acts as insulation which is 10 times more energy efficient and gives better sound proofing

• No electricity is needed for plumbing installation on top of the blocks as they can be cut easily with a hand saw

• The soffit is easily plastered and the finished appearance is no different from an ash block slab

• Ignition temperature of 230ºC

 

Product Description

 

This technology is specialized for suspended floor slabs for multi storey buildings.

 

Components of our slab are the conventional pre stressed lintels and construction stell as well as using revolutionary polystyrene void formers onto which concrete is poured.

 

Benefits of Polystyrene void formers

• Thermal & sound insulator

• The slab depth is controlled by using 4 different sized blocks

• The weight of the polystyrene is 95% lighter and is easily installed at much quicker rates than ashblock.

• Polystyrene is easily plastered

• A slab is approximately 35% lighter. This equates to a saving of about 150kg/m² on a 255mm slab.

• Compared to concrete in situ slabs the weight saving is even more significant - on a 255mm deep concrete in situ slab the weight saving is close to320kg/m²

• Blocks can readily be cut into with a handsaw by electricians and plumbers

• Polystyrene blocks can hold workmen without fear of breakages or damage

• Thermal insulating material

• Reducing energy costs associated with heating and cooling. Polystyrene thermal insulation is 7 times better than a standard concrete slab

• Acts as a sound barrier and mutes all sound waves that are normally transmitted through floor slabs

• They do not add any fire hazard and will not propogate flame

• Polystyrene is rot, rodent and termite proof

• Polystyrene is cost competitive and becomes increasingly competitive when the costs of labour and time are taken into consideration

• Fewer props are needed per m²

^Note:

^{Skylights are easy to install by leaving out polystyrene blocks}

 

Block sizes and specifications:

 

Model	Width	Length	Height	Weight
P3	500mm	1250mm	110mm	800g
P4	500mm	315mm	190mm	200g

 

 

Block dimensions:

 

Concrete Usage	Block Height	Width	Overall Length	Slab Depth	Span
00.11	125mm	450mm	800mm	160mm	5.0m
00.13	195mm	450mm	800mm	255mm	6.5m
00.15	280mm	450mm	800mm	340mm	8.5m
00.17	365mm	450mm	800mm	425mm	11.0m

 

Block density:            20gm/ lt

Fire Retardant:           Yes

Thermal Resistance:  'U valve' of a 250mm slab= 0.48W/m²k

 

Meets the requirements of all major codes - SABS10100