Laboratory and Field Evaluation of Asphalt Concrete Mixture Workability and Compactability
Polymer-modified asphalt has been proven to improve mechanical characteristics of asphalt mixes, however, there are concerns that mixes become drier and more difficult to compact. This study aims to develop compaction indices using routine laboratory compaction procedure to evaluate the workability and compactability of hot and warm mixes prior to laydown. Workability is reflected in the ease of blending while compactability is reflected in the mixes’ stability and resistance to densification. To quantify thresholds for the indices, laboratory and accelerated field testing were implemented. The workability index was tentatively found to be a minimum of 4.5 while the compactability indices were tentatively found to be a maximum of 0.5 and a minimum of 20. The compactability indices were capable of predicting mix resistance to permanent deformation.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784479216
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Supplemental Notes:
- © 2015 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:
- Dessouky, Samer
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Conference:
- Airfield and Highway Pavements 2015
- Location: Miami Florida, United States
- Date: 2015-6-7 to 2015-6-10
- Publication Date: 2015-6
Language
- English
Media Info
- Media Type: Web
- Pagination: pp 97-106
- Monograph Title: Airfield and Highway Pavements 2015: Innovative and Cost-Effective Pavements for a Sustainable Future
Subject/Index Terms
- TRT Terms: Compactibility; Field tests; Hot mix asphalt; Laboratory tests; Polymer asphalt; Rutting; Warm mix paving mixtures; Workability
- Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01568825
- Record Type: Publication
- ISBN: 9780784479216
- Files: TRIS, ASCE
- Created Date: Jun 29 2015 3:52PM