Field Performance Characteristics of Warm Mix Asphalt (WMA) with Various Additives
Warm mix asphalt (WMA) technologies are the greatest advancement in asphalt technology that allows mixing and compaction at significantly lower temperatures than regular hot mix asphalt (HMA). Though laboratory characterization of WMA technologies were addressed in numerous past studies, the long-term field performance characteristics are not clearly understood. This study evaluates long-term field performances of various WMA technologies in comparison to regular HMA. The study utilized the long-term pavement performance (LTPP) specific pavement studies (SPS-10) project. The LTPP SPS-10 project includes (1) control HMA, (2) foaming, (3) Evotherm, (4) Cecabase 1, and (5) Cecabase 2 mixtures. Cecabase 2 mixture consists of a polymer modified binder (PG 70-28+), where the other mixtures consist of PG 70-28 binder. Field performances such as rutting, moisture damage, cracking, individual distress index (IDI), international roughness index (IRI), and pavement condition rating (PCR) were evaluated based on Mandli’s pavement profile scanner, a laser-based distress evaluation technology. The study found that WMA exhibits slightly higher rutting but lower cracking compared to HMA. The overall conditions of WMA mixtures were found as equivalent as regular HMA based on IRI and PCR.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784483541
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Supplemental Notes:
- © 2021 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Bairgi, Biswajit K
- Tarefder, Rafiqul A
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Conference:
- International Conference on Transportation and Development 2021
- Date: 2021-6-8 to 2021-6-10
- Publication Date: 2021
Language
- English
Media Info
- Pagination: pp 281 - 288
- Monograph Title: International Conference on Transportation and Development 2021: Transportation Planning and Development
Subject/Index Terms
- TRT Terms: Field tests; Moisture damage; Pavement cracking; Pavement performance; Polymer asphalt; Rutting; Warm mix paving mixtures
- Identifier Terms: Cecabase; International Roughness Index; Long Term Pavement Performance (LTPP) Program; Mandli pavement scans; Pavement Condition Index; Pavement Distress Index
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01777598
- Record Type: Publication
- ISBN: 9780784483541
- Files: TRIS, ASCE
- Created Date: Jul 23 2021 3:26PM