Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures

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 effe...

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Main Authors: Alaa Husein Abd, Zahra Ibrahim Qassim
Format: Article
Language:English
Published: University of Baghdad 2017-03-01
Series:Journal of Engineering
Online Access:https://www.jcoeng.edu.iq/index.php/main/article/view/59/51
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author Alaa Husein Abd
Zahra Ibrahim Qassim
author_facet Alaa Husein Abd
Zahra Ibrahim Qassim
author_sort Alaa Husein Abd
collection DOAJ
description 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.
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spelling doaj.art-8200081042fb42d387ab271f8b301a4b2023-09-03T02:06:01ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392017-03-012332034Contributory Factors Related to Permanent Deformation of Hot Asphalt MixturesAlaa Husein AbdZahra Ibrahim QassimPermanent 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.https://www.jcoeng.edu.iq/index.php/main/article/view/59/51
spellingShingle Alaa Husein Abd
Zahra Ibrahim Qassim
Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures
Journal of Engineering
title Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures
title_full Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures
title_fullStr Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures
title_full_unstemmed Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures
title_short Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures
title_sort contributory factors related to permanent deformation of hot asphalt mixtures
url https://www.jcoeng.edu.iq/index.php/main/article/view/59/51
work_keys_str_mv AT alaahuseinabd contributoryfactorsrelatedtopermanentdeformationofhotasphaltmixtures
AT zahraibrahimqassim contributoryfactorsrelatedtopermanentdeformationofhotasphaltmixtures