Utilisation of asphalt mix in new production
Published on 02 February 2018
Greece
Kentriki Makedonia
This is the good practice's implementation level. It can be national, regional or local.
About this good practice
The good practice involves the use of recovered asphalt mix in new production. The reclaimed asphalt mixture is the result of the asphalt or scraping asphalt. Demolition is carried out using road machinery such as the excavator while scraping is done using an asphalt cutter. After the material is transferred to the work site, this material is processed to separate the material containing the highest percentage of asphalt and graded in grain size.
This treatment is done by using the granulator containing special shredders that do not polish the recovered bitumen but repel it. With this technology, the asphalt contained retains all its properties while the sieves give the material the correct grading required. The recycled asphalt mixture then goes into the production process of the new asphalt mixture. There in special mechanical equipment it is heated and then mixed with the raw materials, asphalt and aggregates.
This treatment is done by using the granulator containing special shredders that do not polish the recovered bitumen but repel it. With this technology, the asphalt contained retains all its properties while the sieves give the material the correct grading required. The recycled asphalt mixture then goes into the production process of the new asphalt mixture. There in special mechanical equipment it is heated and then mixed with the raw materials, asphalt and aggregates.
Resources needed
No need for extra economic or human resources.
Evidence of success
The use of a 30% recycled asphalt mix increases up to 130% the properties and mechanical strengths of the new asphalt mixture. The primary raw material savings are 30% as well as the recycled bituminous mixture used in the manufacture of new ones. The use of recycled materials ensure the reduction of the use of primary sources of materials as well as reduction of waste deposits in the environment.
Potential for learning or transfer
The implementation of this practice led to significant results (increased by 130%) regarding endurance and elasticity of the new asphalt mix. This practice can be adopted by relevant enterprises worldwide.
Further information
Website
Good practice owner
You can contact the good practice owner below for more detailed information.
Organisation
KAISIDIS ABTE
Greece
Kentriki Makedonia
Contact
PostDoc Researcher