<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Repairs and reconstructions of asphalt roads and paved areas generate large amounts of construction debris in the form of reclaimed asphalt pavement (RAP). The material milled from the upper layer contains aggregate and asphalt with deteriorating performance parameters as a result of long-term service under variable weather conditions. Since the debris is mostly composed of non-renewable materials, attempts have been made to recycle and utilise it in the preparation of new asphalt mixtures. This study investigates the design of an asphalt mix containing recycled RAP and summarises the testing of its performance parameters. By lowering the mixing temperature and using a two-stage method of RAP heating, it was possible to design an asphalt mix with 90% RAP content; thus, the demand for virgin aggregate and the fuel consumption throughout the mixing process could be effectively reduced.</p>
</abstract>

Repairs and reconstructions of asphalt roads and paved areas generate large amounts of construction debris in the form of reclaimed asphalt pavement (RAP). The material milled from the upper layer contains aggregate and asphalt with deteriorating performance parameters as a result of long-term service under variable weather conditions. Since the debris is mostly composed of non-renewable materials, attempts have been made to recycle and utilise it in the preparation of new asphalt mixtures. This study investigates the design of an asphalt mix containing recycled RAP and summarises the testing of its performance parameters. By lowering the mixing temperature and using a two-stage method of RAP heating, it was possible to design an asphalt mix with 90% RAP content; thus, the demand for virgin aggregate and the fuel consumption throughout the mixing process could be effectively reduced.

Designing asphalt mixes containing reclaimed asphalt pavement (RAP)

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

{"article-title":"Designing asphalt mixes containing reclaimed asphalt pavement (RAP)"}

Repairs and reconstructions of asphalt roads and paved areas generate large amounts of construction debris in the form of reclaimed asphalt pavement (RAP). The...

Designing asphalt mixes containing reclaimed asphalt pavement (RAP)

Published Online: Dec 26, 2023

Page range: -

Received: Nov 09, 2023

Accepted: Dec 12, 2023

DOI: https://doi.org/10.37705/TechTrans/e2023020

Keywords
reclaimed asphalt pavement (RAP), foamed asphalt

© 2023 Andrzej Sobczyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Designing asphalt mixes containing reclaimed asphalt pavement (RAP)

Published Online: Dec 26, 2023

Page range: -

Received: Nov 09, 2023

Accepted: Dec 12, 2023

DOI: https://doi.org/10.37705/TechTrans/e2023020

Keywordsreclaimed asphalt pavement (RAP), foamed asphalt

© 2023 Andrzej Sobczyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Keywords
reclaimed asphalt pavement (RAP), foamed asphalt