Utilizing Reclaimed Asphalt Pavement in Preservation Treatments

Sayeh, Watheq; Al-Qadi, Imad; Hajj, Ramez

Permalink

https://hdl.handle.net/2142/121041 Copy

Description

Title

Utilizing Reclaimed Asphalt Pavement in Preservation Treatments

Author(s)

• Sayeh, Watheq
• Al-Qadi, Imad
• Hajj, Ramez

Contributor(s)

,

Issue Date

2023-10

Keyword(s)

• RAP
• Preservation
• Pavement
• Treatment
• Chip Seal
• Microsurfacing

Abstract

The use of reclaimed asphalt pavement (RAP) has economic and environmental impacts. This report investigates the prospective use of RAP in preservation treatments (mainly chip sealing and microsurfacing) in Illinois. A review of the current state of knowledge and practice was conducted. The economic and logistic feasibility of using RAP in preservation treatments in Illinois were investigated. Data were collected on RAP availability in the state followed by a survey distributed to district engineers and highway construction contractors. The survey asked about the availability of RAP, its viability in preservation treatments, and the readiness for its application. A unit price analysis was conducted to assess the financial viability of using RAP compared to virgin aggregate. The results suggested there was an excess of good quality and fractionated RAP, and contractors are open to using RAP in various applications. Considering contract unit prices in Illinois, no significant difference would be expected when RAP is used in place of virgin aggregate. Hence, using RAP in preservation treatments would probably make preservation treatments more viable. Economic and environmental analyses demonstrated that using RAP in preservation treatments would reduce the impact on the environment by reducing energy, global warming potential, and greenhouse gases while providing cost savings. A simple decision tool was developed to provide guidance on using RAP in preservation treatments.

Publisher

Illinois Center for Transportation/Illinois Department of Transportation

Has Part

• https://doi.org/10.36501/0197-9191/23-022
• ISSN: 0197-9191

Series/Report Name or Number

FHWA-ICT-23-016

Type of Resource

text

Language

en

Sponsor(s)/Grant Number(s)

IDOT-R27-SP56

Copyright and License Information

No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.

Owning Collections