Analysis and Comparison of Performance Characteristics of Asphalt Mixtures Containing Steel Slag and rPET

Document Type : Original Article

Author

Department of Civil Engineering, Payame Noor University, Tehran, Iran.

10.22034/jcema.2022.153366

Abstract

Asphalt mixtures are composed of two components, namely aggregate and bitumen, so that many structural weaknesses of an asphalt mixture can be resolved by modifying these components. In the past, various research works have been done to improve these weaknesses using a versatile spectrum of different materials. Among others, recycled materials have attracted more attention thanks to their further environmental benefits. On this basis, in the present work, steel slag and recycled polyethylene were used with different compositions at different percent dosages. In order to evaluate the effects of these two materials, we used resilience modulus test, Marshall Resistance test, dry and wet indirect traction tests, and moisture sensitivity test. Results showed that incorporation of both materials in a mixture provides for a better output than the use of either of them alone. Indeed, the blending of these two materials helps address the weaknesses of either of them.

Keywords

Main Subjects


Copyright © 2022 Tavakol Rajabi. This is an open access paper distributed under the Creative Commons Attribution License. Journal of Civil Engineering and Materials Application is published by Pendar Pub; Journal p-ISSN 2676-332X; Journal e-ISSN 2588-2880.

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Volume 6, Issue 2
June 2022
Pages 79-86
  • Receive Date: 04 February 2022
  • Revise Date: 18 April 2022
  • Accept Date: 12 May 2022
  • First Publish Date: 25 June 2022