Impact of Preparing HMA with Modified Asphalt Cement on Moisture and Temperature Susceptibility
Journal of Engineering
View Archive Info| Field | Value | |
| Title |
Impact of Preparing HMA with Modified Asphalt Cement on Moisture and Temperature Susceptibility
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| Creator |
Hadi, Sahar Safaa
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| Description |
Many researchers tried to prevent or reduce moisture damage and its sensitivity to temperature to improving the performance of hot mix asphalt because it is decreasing the functional and structural life of fixable pavement due to the moisture damage had exposed to it. The main objective of this study is to inspect the effect of (fly ash “3%, 6%, 12%”, hydrated lime”5%, 10%, 20%” and silica fumes”1%, 2%, 4%) referring to previous research by the net weight asphalt cement as a modified material on the moisture and temperature sensitivity of hot mix asphalt. This was done using asphalt from AL-Nasiria refinery with penetration grade 40-50, nominal maximum size (12.5) mm (surface course) of aggregate and one type of mineral fillers (limestone dust) with 7%. To achieve the requirements of this study, the indirect tensile strength test according to (AASHTO T 283) criteria and compressive strength test were adopted to evaluate the index of retained strength according to (ASTM D 1075) to identify the moisture damage as well as indirect tensile strength test to evaluate sensitivity to temperature of the hot mix asphalt using modification and net asphalt. These tests showed that there is a significant evolution in the resistance to moisture damage and decrease in the sensitivity to temperature of hot mix asphalt with modifying asphalt compared to the reference mixture. |
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| Publisher |
College of Engineering | University of Baghdad
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| Date |
2017-11-01
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| Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
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| Format |
application/pdf
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| Identifier |
http://joe.uobaghdad.edu.iq/index.php/main/article/view/298
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| Source |
مجلة الهندسة; مجلد 23 عدد 11 (2017): Journal of Engineering (Eng. J.); 1-12
Journal of Engineering; Vol 23 No 11 (2017): Journal of Engineering (Eng. J.); 1-12 2520-3339 1726-4073 |
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| Language |
eng
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| Relation |
http://joe.uobaghdad.edu.iq/index.php/main/article/view/298/261
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| Rights |
Copyright (c) 2017 Eng. J.
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