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Sustainable reuse of highway materials in hot and cold bituminous mixtures

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Woodside, Alan, Woodward, David, Phillips, P and Mills, A (2000) Sustainable reuse of highway materials in hot and cold bituminous mixtures. PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-MUNICIPAL ENGINEER, 139 (3). pp. 181-186. [Journal article]

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URL: http://www.icevirtuallibrary.com/content/article/10.1680/muen.2000.139.3.181

DOI: 10.1680/muen.2000.139.3.181

Abstract

In the last few years there has been growing concern about the increasing demand placed upon finite resources. Many organizations and types of industry now encourage the practice of sustainability. With the introduction of the landfill tax, aggregate lax and the increasing cost of bitumen, highway authorities must now consider other methods to achieve better value for money. In highway engineering, reduction in use of aggregate and bitumen resources can be achieved by better understanding of pavement design and choice of materials used. It may also be facilitated by the reuse of bituminous materials that have been removed from the pavement structure as part of a maintenance programme. This is termed reclaimed asphalt pavement (RAP) and is permitted in hot-mix asphalt in accordance with the Specification of Highway Works Clause 902. A combination of these two approaches will enable the maximum reuse of this type of material without urning the highway into what may he termed a waste disposal location. This paper shows how clients such as local highway authorities are maximizing reuse opportunities. It also gives an example of how suppliers are now collaborating with academic institutions to develop new technologies to solve the client's problem. Two experimental trial road sections are detailed which were designed and constructed to evaluate the use of RAP in a hot and a cold bituminous mixture. This as enabled the authors to quantify the benefit of using recycled materials and technologies.

Item Type:Journal article
Keywords:recycling of materials; research & development; roads & highways
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Centre for Sustainable Technologies (CST)
ID Code:3852
Deposited By:Dr David Woodward
Deposited On:20 Oct 2010 15:04
Last Modified:20 Oct 2010 15:04

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