videoblocks-abstract-technology-futuristic-network-animation-fantasy-plexus-blue-background-seamless-loop_hbqq4lv-z_thumbnail-full06.jpg

Description

A technology that – using suitable fillers and admixtures – makes it possible to convert different types of waste thermoplastics into decorative and building components containing innovative composite material – polymer concrete.

The technology originated as a response to a largely unsatisfactory state of waste management within which a high percentage of mixed waste plastics is sent to landfill without any further material recovery, namely for the reasons of high costs of waste separation and treatment.

Binder in a form of roughly sized waste plastic material (whole unwashed unseparated PET bottles, plastic packaging material and other types of plastic waste) is crushed into fractions of 2 – 20 mm. The filler (sand, aggregate, crushed glass, etc.) is heated, dried and subsequently homogenized with the binder in the mixing reactor. Using a screw extruder, the loose mixture is further allowed to reach the melting temperature of the given thermoplastic and the melt is incorporated into individual moulds for final shaping and cooling. The final product is then submitted for final handling – palletization, packaging and dispatching.

  • Production of precast concrete according to special needs of a customer
  • Secondary use of waste materials (fillers and binders)
  • Compact dimensions of the line
  • Cost reduction thanks to mixture preheating by means of a gas heating system
  • Active cooperation with academic research organizations of the Czech Technical University in Prague (Construction and Engineering Faculties)
  • Characteristics comparable to conventional materials (depending on the type of mixture)

Solution

  • Manufactured elements comprise precast concrete, decorative components, furniture components, sidings and coverings, etc.
  • Product usage in the building industry, landscape and park architecture, architecture of public spaces or design.
  • The technology may be equipped with a 3D printer enabling a wide range of products.

Savings

  • There are savings in cement and water that are replaced by waste plastics. With regard to the increasing cement price, the technology makes a very promising trend of the future.
  • Precast polymer concrete has so far been used mainly for more accurate elements applied especially in water management.
  • A benefit of the technology is the variability of inputs in the preparation of the manufacturing mixture.

 

zelena2

 

image1

 

Proven recipe

  • Currently processed crushed ‘colour’ PET
  • Sand of the fraction of 0-4 mm as filler

We are preparing

  • Crushed residues of TETRAPAK packaging (binder)
  • Application of waste tempered glass as a substitute for sand (filler)

 

zelena3

 

zelena4

 

image2

Subscribe to news and tips

News from the world of innovative technologies. Tips on how to optimize production and save.