Contributory factors related to permanent deformation of hot asphalt mixtures
Other Title(s)
العوامل المساهمة و المتعلقة بالتشوه الدائمي للخلطاث الأسفلتية الحارة
Joint Authors
Qasim, Zahra Ibrahim
Abd, Ala Husayn
Source
Issue
Vol. 23, Issue 3 (31 Mar. 2017), pp.20-34, 15 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2017-03-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
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.
American Psychological Association (APA)
Abd, Ala Husayn& Qasim, Zahra Ibrahim. 2017. Contributory factors related to permanent deformation of hot asphalt mixtures. Journal of Engineering،Vol. 23, no. 3, pp.20-34.
https://search.emarefa.net/detail/BIM-734882
Modern Language Association (MLA)
Abd, Ala Husayn& Qasim, Zahra Ibrahim. Contributory factors related to permanent deformation of hot asphalt mixtures. Journal of Engineering Vol. 23, no. 3 (Mar. 2017), pp.20-34.
https://search.emarefa.net/detail/BIM-734882
American Medical Association (AMA)
Abd, Ala Husayn& Qasim, Zahra Ibrahim. Contributory factors related to permanent deformation of hot asphalt mixtures. Journal of Engineering. 2017. Vol. 23, no. 3, pp.20-34.
https://search.emarefa.net/detail/BIM-734882
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 27-34
Record ID
BIM-734882