World Cup 2010 Traffic simulation long-term aging of polypropylene asphalt paving mixtures

Al-Hadidy, Ai; Yi-Qiu, Tan

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dc.contributor.author	Al-Hadidy, Ai
dc.contributor.author	Yi-Qiu, Tan
dc.date.accessioned	2008-06-20T10:19:15Z
dc.date.available	2008-06-20T10:19:15Z
dc.date.issued	2007-07
dc.description	This paper was transferred from the original CD ROM created for this conference. The material on the CD ROM was published using Adobe Acrobat technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: doctech@doctech.co.za URL: http://www.doctech.co.za	en
dc.description.abstract	Paper presented at the 26th Annual Southern African Transport Conference 9 - 12 July 2007 "The challenges of implementing policy?", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT: This study investigated the influence of accelerated weathering (aging) on the engineering properties of modified asphalt mixtures with pyrolysis polypropylene (PP). The accelerated weathering was done at a temperature of 85 °C and over two periods of time, namely between two and four days. Marshall specimens were compacted with a mechanical compactor at a temperature of 135 to 142 °C. Five pyrolysis polypropylene mixtures, including the control, which had an optimum asphalt content, were investigated. The asphalt concrete was of a dense-graded aggregate type of surface course conforming to the gradation limits of ASTM highway commission specifications. The results showed that variations in age change the physical properties of modified mixtures.	en
dc.format.extent	327892 bytes
dc.format.mimetype	application/pdf
dc.identifier.citation	Al-Hadidy , A & Tan, Y-Q 2007,'World Cup 2010 Traffic simulation long-term aging of polypropylene asphalt paving mixtures', Paper presented to the 26th Annual Southern African Transport Conference, South Africa, 9 - 12 July 2007. 7p.	en
dc.identifier.isbn	192001702X
dc.identifier.uri	http://hdl.handle.net/2263/5995
dc.language	eng
dc.language.iso	en	en
dc.publisher	SATC	en
dc.relation.ispartof	SATC 2007
dc.rights	University of Pretoria	en
dc.subject	Transport policies	en
dc.subject	Aging	en
dc.subject	Polypropylene	en
dc.subject	Asphalt	en
dc.subject	Indirect tensile strength	en
dc.subject	Modifiers	en
dc.subject.lcsh	Transportation -- South Africa -- Congresses	en
dc.subject.lcsh	Pavements, Asphalt -- South Africa -- Quality control -- Congresses	en
dc.subject.lcsh	Roads -- South Africa -- Testing -- Congresses	en
dc.title	World Cup 2010 Traffic simulation long-term aging of polypropylene asphalt paving mixtures	en
dc.type	Presentation	en