Asphalt concrete mixtures with addition of reclaimed asphalt pavements
Authors:
- Piotr Zieliński
Abstract
The effect of using reclaimed asphalt pavements (RAP) to asphalt concrete mixtures besides their utilization is to reduce the amount of the new bituminous binder and aggregate added to hot mix asphalt. This publication presents studies on asphalt mixtures with an increased up to 40 % amount of RAP additive with the simultaneous use of 2 types of added bitumen, i.e. 35/50 and PMB 25/55-60. The aim of the paper is the evaluation of the basic mixture properties in a wide range of operating temperatures, as a part of the AC testing at high temperatures, the resistance to rutting at 60 °C and indirect tensile strength at 40 °C. The assessment of properties at intermediate operating temperatures is based on indirect tensile tests, including: elastic stiffness modulus at 5 °C, 15 °C and 30 °C and static strength at 25 °C. The low temperature properties have been tested in water and frost resistance tests by indirect tensile strength ratio. The results of the study were subjected to the analysis of the statistical significance of differences, which showed an improvement in the resistance of AC with the addition of RAP to the formation of permanent deformations and an increase in the stiffness modulus as well as indirect tensile strength. There was no adverse effect of the RAP additive on asphalt mixtures resistance to water and frost action.
- Record ID
- CUTfa5a06123008472c9c40bb0956375d23
- Publication categories
- ; ;
- Author
- Pages
- 1075-1083
- Other elements of collation
- tab.; Bibliografia (na s.) - 1082-1083; Bibliografia (liczba pozycji) - 13; Oznaczenie streszczenia - Abstr.
- Book
- Lakušić Stjepan Stjepan Lakušić (eds.): Road and Rail Infrastructure VI : proceedings of the 6th International Conference on Road and Rail Infrastructures – CETRA 2020* 20-21 May, 2021, Zagreb, Croatia, International Conference on Road and Rail Infrastructures, 2021, Zagreb, Department of Transportation. Faculty of Civil Engineering. University of Zagreb, ISBN 978-953-8168-48-2
- Keywords in English
- reclaimed asphalt pavements (RAP), asphalt concrete (AC), indirect tensile strength (ITS), stiffness modulus, wheel tracking
- DOI
- DOI:10.5592/CO/CETRA.2020.1123 Opening in a new tab
- URL
- https://repozitorij.unizg.hr/en/islandora/object/grad%3A713 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 5
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTfa5a06123008472c9c40bb0956375d23/
- URN
urn:pkr-prod:CUTfa5a06123008472c9c40bb0956375d23
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.