Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures

Alaa Husein Abd; Zahra Ibrahim Qassim

doi:10.31026/j.eng.2017.03.02

Article Details

Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures

Authors:

Alaa Husein Abd | Zahra Ibrahim Qassim

Publisher:

University of Baghdad

Journal:

Journal of Engineering Vol.23 Issue 3, pp.20-34

Document Type:

Article

Publication Date:

2/2017

Document Language:

English

Document ID (Org No.):

2001381176

pISSN:

2520-3339

DOI:

10.31026/j.eng.2017.03.02

Keywords:

Abstract:

 Permanent deformation (Rutting) of asphalt  pavements which appears in many roads in Iraq, have caused a major impact on pavement performance by reducing the useful service life of pavement and creating services hazards for highway users. The main objective of this research is investigating the effect of some contributory factors related to permanent deformation of asphalt concrete mixture. To meet the objectives of this research, available local materials are used including asphalt binder, aggregates, mineral filler and modified asphalt binder. The Superpave mix design system was adopted with varying volumetric compositions. The Superpave Gyratory Compactor was used to compact 24 asphalt concrete cylindrical specimens. To collect the required data and investigate the development of permanent deformation in asphalt concrete under repeated loadings, Wheel-Tracking apparatus has been used in a factorial testing program  during which 44 slab samples; with dimensions of 400×300×50 mm; were tested to simulate . actual pavement. Based on wheel-tracking test results, it has been concluded that increasing the compaction temperature from 110 to 150ºC caused a decreasing in permanent deformation by 20.5 and 15.6 percent for coarse and fine gradation control asphalt mixtures respectively. While the permanent deformation decreased about 21.3 percent when the compaction  temperature is increased from 110 to 150ºC for coarse gradation asphalt mixtures modified with styrene butadiene styrene SBS with 3 percent by asphalt binder weight.

Article Details

Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures

Authors:

Alaa Husein Abd | Zahra Ibrahim Qassim

Publisher:

University of Baghdad

Journal:

Journal of Engineering Vol.23 Issue 3, pp.20-34

Document Type:

Article

Publication Date:

2/2017

Document Language:

English

Document ID (Org No.):

2001381176

pISSN:

2520-3339

DOI:

10.31026/j.eng.2017.03.02

modified asphalt, asphalt concrete

Superpave

rutting performance

and wheel tracking test

Issues

Article Details

Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures

Authors: Alaa Husein Abd | Zahra Ibrahim Qassim

Publisher: University of Baghdad

Journal: Journal of Engineering Vol.23 Issue 3, pp.20-34

Document Type: Article

Publication Date: 2/2017

Document Language: English

Document ID (Org No.): 2001381176

pISSN: 2520-3339

DOI: 10.31026/j.eng.2017.03.02

modified asphalt, asphalt concrete

Superpave

rutting performance

and wheel tracking test

Issues

Authors:

Alaa Husein Abd | Zahra Ibrahim Qassim

Publisher:

University of Baghdad

Journal:

Journal of Engineering Vol.23 Issue 3, pp.20-34

Document Type:

Article

Publication Date:

2/2017

Document Language:

English

Document ID (Org No.):

2001381176

pISSN:

2520-3339

DOI:

10.31026/j.eng.2017.03.02