Susceptibility of low-density polyethylene and polyphosphoric acid-modified asphalt binders to rutting and fatigue cracking

Mahecha Nunez, Javier Yesid; Inocente Domingos, Matheus David; Faxina, Adalberto Leandro

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Susceptibility of low-density polyethylene and polyphosphoric acid-modified asphalt binders to rutting and fatigue cracking

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Author(s):	Mahecha Nunez, Javier Yesid ^[1] ; Inocente Domingos, Matheus David ^[1] ; Faxina, Adalberto Leandro ^[1] Total Authors: 3
Affiliation:	^[1] Univ Sao Paulo, Dept Transportat Engn, Sao Carlos Sch Engn, BR-13566590 Sao Paulo - Brazil Total Affiliations: 1
Document type:	Journal article
Source:	CONSTRUCTION AND BUILDING MATERIALS; v. 73, p. 509-514, DEC 30 2014.
Web of Science Citations:	18
Abstract
Fatigue and rutting properties of asphalt binders modified with low-density polyethylene and polyphosphoric acid (PPA) were investigated. The modifier contents were chosen such that the high-temperature performance grade is the same for all formulations in the Superpave specification (PG 76-xx). The linear amplitude sweep (LAS) for fatigue and the multiple stress creep and recovery (MSCR) for rutting were performed. The modified binders have better rheological properties than the base material and show different rutting and fatigue behaviors, even though their high PG grades are the same. The results indicated that PPA is a great alternative to be used as binder modifier. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

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