POLYSTYRENE CONCRETE - BUILDING BLOCKS FOR EXTERNAL AND INTERNAL MASONRY

Polystyrene concrete (PSC)

 

Polystyrene concrete thanks to its unique capabilities regarding the resistance oh heat transfer corresponds best to the modern requirements. It is more durable (not like polymer materials which age and corrupt quicker).It has low density (D200-D350),strength (contracts up to 1,5 mPa), low heat conductivity (0,06-0,08 W/m0C), hard to burn – B1 group ( if exposed to fire for long time (more than 180 minutes) regular foam blocks disintegrate, unlike PSC which when exposed to fire  preserves its concrete matrix which continues to have all of its capabilities). PSC is environmentally friendly. PSC has low moisture absorption characteristics (which allows for the material to preserves low indicators for heat conductivity even in environment with high levels of moisture, which make it very effective for areas near the sea), and from here as a result it has also high levels of frost resistance (F25-F100).

Recently more attention is given not only to the heat characteristics of the construction of the walls but also to the comfort needed for living in these buildings. Here PSC also hardly can find any competitors. For such comfort parameters such as vapor permeability and heat inertia, PSC is even better than wood materials and changing the thickness of the masonry it can be created the necessary heat resistance.

PSC demonstrates its unique capabilities in different products (blocks and plates, manufactured in plants) and in monolithic structures (elements, poured on the construction site).For example when building homes (including tall ones), blocks made from PSC are widely used for fencing. Plates made from PSC often are used for insulating facades of existing buildings and buildings under construction and also for dry insulation of roofs and floors.

With the same success is used technology for pouring PSC on site. The material is prepared on the construction site in special instillations, the mixture is fed by a concrete pomp and it is poured in a stationary shutter. Such technology allows various different shapes for the walls to be constructed and with the wanted heat insulating characteristics. Using this technology three-layer bearing walls can be constructed meeting the highest standards for retaining heat inside the house and also convenient for design and for filling cavities in walls. Even bigger interest is caused when PSC is used for heat insulating of large roofs. For a roof ready plates can be used and also the option for pouring on site. Both ways provide excellent heat insulation for the roof and are used as a preparation layer for installing hydro insulation on top which with the long life of the product gives high economical efficiency. Usually PSC pouring is used for monolith construction – this way is cheaper than using pre-made plates. The plates have advantage when used for heat insulation of roofs with high slopes and they exclude “wet” processes which reduces the costs of construction.

With great popularity amongst architects and builders in recent years is PSC technology for heat insulation of floors and intercommunication spaces. Only 5 sm. layer is needed so that the room can reach the heat insulation needed for constantly warm floors. Also the noise insulation is greatly improved because noise is decreased with 12 to 15 decibels. PSC in this case is used as a sand-concrete floor coating-over its surface almost immediately the flooring can be placed: parquet, laminate, linoleum or ceramic granite.

It is not without meaning that heat insulation of floors, intercommunication spaces and roofs constructed with PSC is cheaper than the same made by regular materials and technologies.
The high level of technologies, the financial benefits connected with the lower heating costs and noise insulation with no further financial losses, attracts the attention of large building companies for this product.