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Characterization and best use of recycled asphalt shingles in hot-mix asphalt /

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Recycled asphalt shingles (RAS) often containing more than 20 percent asphalt binder have become another black gold in the asphalt industry. There are two basic types of RAS scraps in the market: tear-off asphalt shingles (TOAS) and manufacture waste asphalt shingles (MWAS). Both TOAS and MWAS have...

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Bibliographic Details
Main Author: Zhou, Fujie (Author)
Corporate Authors: Texas A & M Transportation Institute, Texas. Department of Transportation. Research and Technology Implementation Office, United States. Federal Highway Administration
Format: eBook
Language:English
Published: College Station, Texas : Alexandria, Virginia : Texas A&M Transportation Institute ; Available through the National Technical Information Service, [2013]
Series:Research report (Austin, Tex.) ; 0-6614-2.
Subjects:
Pavements, Asphalt > Recycling > Texas.
asphalt mixtures.
Hot mix asphalt.
Recycled materials.
Electronic books.
Online Access:Connect to the full text of this electronic book
Description
Summary:Recycled asphalt shingles (RAS) often containing more than 20 percent asphalt binder have become another black gold in the asphalt industry. There are two basic types of RAS scraps in the market: tear-off asphalt shingles (TOAS) and manufacture waste asphalt shingles (MWAS). Both TOAS and MWAS have been used in hot-mix asphalt (HMA) paving in Texas. Since RAS is very stiff lots of concerns have been raised on using RAS in HMA. The researchers conducted a comprehensive investigation on HMA mixes containing RAS, including RAS binder characterization and blending charts for virgin/RAS binders, impact of RAS content on optimum asphalt content (OAC) and engineering properties of RAS mixes, and approaches for improving cracking resistance of RAS mixes. Furthermore, a variety of RTAS field test sections were constructed to validate the approaches for improving cracking resistance of RAS mixes. Additionally, this report discusses the environmental and economic benefits of using RAS in HMA.
Item Description:"October 2012. Published: July 2013."
Electronic resource.
Physical Description:1 online resource (x, 78 pages) : color illustrations.
Format:System requirements: Adobe Acrobat Reader.
Mode of access: World Wide Web.
Bibliography:Includes bibliographical references.