The Effect of Additives in Hot Asphalt Mixtures

The increase in road traffic during the last two decades in combination with an insufficient degree of maintenance due to shortage in funds have caused an accelerated and continuous deterioration of the road network in Iraq. To alleviate this process, several types of measures may be effective, e.g...

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Main Author: Sady Abd Taih
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2011-09-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1363
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author Sady Abd Taih
author_facet Sady Abd Taih
author_sort Sady Abd Taih
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description The increase in road traffic during the last two decades in combination with an insufficient degree of maintenance due to shortage in funds have caused an accelerated and continuous deterioration of the road network in Iraq. To alleviate this process, several types of measures may be effective, e.g., securing funds for maintenance, improved roadway design, use of better quality of materials and the use of more effective construction methods. In this research, waste plastic bags as one sort of polymers and polypropylene fiber are used to investigate the potential prospects to enhance asphalt mixture properties. The objectives also include determining which one of the two additives is better than the other to be used and its proportion. The two additives were introduced to the mixture in state of small pieces (2-4 mm). Marshall mix design was used, first to determine the optimum bitumen binder content and then further to test the modified mixture properties. In total, (51) samples were prepared (15 samples were used to determine the optimum binder content and the remaining samples were used to investigate the effect of modifying the asphalt mixtures). The optimum asphalt content was (5 %). Six proportions of each additive type and stated by weight of the optimum binder content were selected to be tested (2, 4, 6, 8, 10, and 12%). The tests include the determination of bulk density, stability and flow.
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spelling doaj.art-052be6111ae641b7ac3e1ad1051f7a4f2022-12-22T03:35:35ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252011-09-01153The Effect of Additives in Hot Asphalt MixturesSady Abd Taih0Civil Engineering Department, College of Engineering, Al-Mustansiriya University, Baghdad, Iraq The increase in road traffic during the last two decades in combination with an insufficient degree of maintenance due to shortage in funds have caused an accelerated and continuous deterioration of the road network in Iraq. To alleviate this process, several types of measures may be effective, e.g., securing funds for maintenance, improved roadway design, use of better quality of materials and the use of more effective construction methods. In this research, waste plastic bags as one sort of polymers and polypropylene fiber are used to investigate the potential prospects to enhance asphalt mixture properties. The objectives also include determining which one of the two additives is better than the other to be used and its proportion. The two additives were introduced to the mixture in state of small pieces (2-4 mm). Marshall mix design was used, first to determine the optimum bitumen binder content and then further to test the modified mixture properties. In total, (51) samples were prepared (15 samples were used to determine the optimum binder content and the remaining samples were used to investigate the effect of modifying the asphalt mixtures). The optimum asphalt content was (5 %). Six proportions of each additive type and stated by weight of the optimum binder content were selected to be tested (2, 4, 6, 8, 10, and 12%). The tests include the determination of bulk density, stability and flow. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1363hot mix asphaltasphalt additivesrecycled plastic bagspolypropylene fiber
spellingShingle Sady Abd Taih
The Effect of Additives in Hot Asphalt Mixtures
Journal of Engineering and Sustainable Development
hot mix asphalt
asphalt additives
recycled plastic bags
polypropylene fiber
title The Effect of Additives in Hot Asphalt Mixtures
title_full The Effect of Additives in Hot Asphalt Mixtures
title_fullStr The Effect of Additives in Hot Asphalt Mixtures
title_full_unstemmed The Effect of Additives in Hot Asphalt Mixtures
title_short The Effect of Additives in Hot Asphalt Mixtures
title_sort effect of additives in hot asphalt mixtures
topic hot mix asphalt
asphalt additives
recycled plastic bags
polypropylene fiber
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1363
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