Moisture Damage of Warm Mix Asphalt Concrete

Implementation of Warm Mix Asphalt concrete (WMA) is getting global acceptance due to the restrictions for protecting the environment and the requirements to reduce fuel consumption. In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and...

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Main Authors: Zain alabidine Nihad Abdul Mahdi, Saad I. Sarsam
Format: Article
Language:English
Published: University of Baghdad 2019-05-01
Series:Journal of Engineering
Subjects:
Online Access:http://joe.uobaghdad.edu.iq/index.php/main/article/view/890
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author Zain alabidine Nihad Abdul Mahdi
Saad I. Sarsam
author_facet Zain alabidine Nihad Abdul Mahdi
Saad I. Sarsam
author_sort Zain alabidine Nihad Abdul Mahdi
collection DOAJ
description Implementation of Warm Mix Asphalt concrete (WMA) is getting global acceptance due to the restrictions for protecting the environment and the requirements to reduce fuel consumption. In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and Cationic emulsion asphalt. Hot Mix Asphalt (HMA) was also prepared for comparison. The cylinder specimens (63.5mm) in height and (101.6mm) in diameter were constructed from the mixtures and subjected to indirect tensile strength test to determine the Tensile Strength Ratio (TSR). The cylinder specimens of (101.6mm) in height and (101.6mm) in diameter were also constructed from those mixtures and subjected to static compressive strength test to determine the Index of Retained Strength (IRS). It was concluded that the WMA are more prone to moisture damage than HMA, the TSR are (92 and 86) % for (emulsion and cutback) WMA respectively, both are lower than of HMA by (2.13 and 8.51) % respectively. As the asphalt content increases, the TSR also increases and reached to peak value of Optimum Asphalt Content (OAC) then decreases. The WMA has less IRS than HMA, the IRS are 70% and 78% for the WMA-emulsified asphalt and HMA respectively.
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spelling doaj.art-fb489287b20849728161d87680f91a722023-09-02T14:07:59ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392019-05-0125610.31026/j.eng.2019.06.08Moisture Damage of Warm Mix Asphalt ConcreteZain alabidine Nihad Abdul Mahdi0Saad I. Sarsam1College of Engineering-University of BaghdadCollege of Engineering-University of BaghdadImplementation of Warm Mix Asphalt concrete (WMA) is getting global acceptance due to the restrictions for protecting the environment and the requirements to reduce fuel consumption. In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and Cationic emulsion asphalt. Hot Mix Asphalt (HMA) was also prepared for comparison. The cylinder specimens (63.5mm) in height and (101.6mm) in diameter were constructed from the mixtures and subjected to indirect tensile strength test to determine the Tensile Strength Ratio (TSR). The cylinder specimens of (101.6mm) in height and (101.6mm) in diameter were also constructed from those mixtures and subjected to static compressive strength test to determine the Index of Retained Strength (IRS). It was concluded that the WMA are more prone to moisture damage than HMA, the TSR are (92 and 86) % for (emulsion and cutback) WMA respectively, both are lower than of HMA by (2.13 and 8.51) % respectively. As the asphalt content increases, the TSR also increases and reached to peak value of Optimum Asphalt Content (OAC) then decreases. The WMA has less IRS than HMA, the IRS are 70% and 78% for the WMA-emulsified asphalt and HMA respectively.http://joe.uobaghdad.edu.iq/index.php/main/article/view/890Warm Mix, Emulsion, Cutback, Tensile Strength Ratio, Index of Retained Strength.
spellingShingle Zain alabidine Nihad Abdul Mahdi
Saad I. Sarsam
Moisture Damage of Warm Mix Asphalt Concrete
Journal of Engineering
Warm Mix, Emulsion, Cutback, Tensile Strength Ratio, Index of Retained Strength.
title Moisture Damage of Warm Mix Asphalt Concrete
title_full Moisture Damage of Warm Mix Asphalt Concrete
title_fullStr Moisture Damage of Warm Mix Asphalt Concrete
title_full_unstemmed Moisture Damage of Warm Mix Asphalt Concrete
title_short Moisture Damage of Warm Mix Asphalt Concrete
title_sort moisture damage of warm mix asphalt concrete
topic Warm Mix, Emulsion, Cutback, Tensile Strength Ratio, Index of Retained Strength.
url http://joe.uobaghdad.edu.iq/index.php/main/article/view/890
work_keys_str_mv AT zainalabidinenihadabdulmahdi moisturedamageofwarmmixasphaltconcrete
AT saadisarsam moisturedamageofwarmmixasphaltconcrete