Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures
Moisture induced damage can cause a progressive deterioration in the performance of asphalt pavement by the loss of adhesion between asphalt binder and aggregate surface and/or loss of cohesion within the binder in the presence of water. The objective of this paper is to improve the asphalt mixtures...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Baghdad
2019-02-01
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| Series: | Journal of Engineering |
| Subjects: | |
| Online Access: | http://joe.uobaghdad.edu.iq/index.php/main/article/view/776 |
| _version_ | 1797721081615745024 |
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| author | Mohammed Qadir Ismael Ahmed Hussein Ahmed |
| author_facet | Mohammed Qadir Ismael Ahmed Hussein Ahmed |
| author_sort | Mohammed Qadir Ismael |
| collection | DOAJ |
| description | Moisture induced damage can cause a progressive deterioration in the performance of asphalt pavement by the loss of adhesion between asphalt binder and aggregate surface and/or loss of cohesion within the binder in the presence of water. The objective of this paper is to improve the asphalt mixtures resistance to moisture by using hydrated lime as an anti-stripping additive. For this purpose, two types of asphalt binder were utilized; asphalt grades (40-50) and (60-70) with one type of aggregate of 19.0 mm aggregate nominal maximum size, and limestone dust as a mineral filler. Marshall method was adopted to find the optimum asphalt content. Essentially, two parameters were determined to evaluate the moisture susceptibility, namely: The Index of Retained Strength and the Tensile Strength Ratio. The hydrated lime was added by 1.0, 1.5, and 2.0 percentages (by weight of aggregate) using the saturated surface dry method. It was concluded that using hydrated lime will improve the moisture damage resistance. This was adopted as the value of tensile strength ratio increased by 24.50 % and 29.16% for AC (40-50) and AC (60-70) respectively, furthermore, the index of retained strength also increased by 14.28 % and 17.50 % for both asphalt grades. The optimum hydrated lime content founded to be 1.5 %. |
| first_indexed | 2024-03-12T09:29:29Z |
| format | Article |
| id | doaj.art-b6cfbbaf71c64924b477857b60d963b1 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-12T09:29:29Z |
| publishDate | 2019-02-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-b6cfbbaf71c64924b477857b60d963b12023-09-02T13:59:43ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392019-02-0125310.31026/j.eng.2019.03.08Effect of Hydrated Lime on Moisture Susceptibility of Asphalt MixturesMohammed Qadir Ismael0Ahmed Hussein Ahmed1College of Engineering-University of BaghdadCollege of Engineering-University of BaghdadMoisture induced damage can cause a progressive deterioration in the performance of asphalt pavement by the loss of adhesion between asphalt binder and aggregate surface and/or loss of cohesion within the binder in the presence of water. The objective of this paper is to improve the asphalt mixtures resistance to moisture by using hydrated lime as an anti-stripping additive. For this purpose, two types of asphalt binder were utilized; asphalt grades (40-50) and (60-70) with one type of aggregate of 19.0 mm aggregate nominal maximum size, and limestone dust as a mineral filler. Marshall method was adopted to find the optimum asphalt content. Essentially, two parameters were determined to evaluate the moisture susceptibility, namely: The Index of Retained Strength and the Tensile Strength Ratio. The hydrated lime was added by 1.0, 1.5, and 2.0 percentages (by weight of aggregate) using the saturated surface dry method. It was concluded that using hydrated lime will improve the moisture damage resistance. This was adopted as the value of tensile strength ratio increased by 24.50 % and 29.16% for AC (40-50) and AC (60-70) respectively, furthermore, the index of retained strength also increased by 14.28 % and 17.50 % for both asphalt grades. The optimum hydrated lime content founded to be 1.5 %.http://joe.uobaghdad.edu.iq/index.php/main/article/view/776asphalt pavement, moisture susceptibility, hydrated lime, tensile strength. |
| spellingShingle | Mohammed Qadir Ismael Ahmed Hussein Ahmed Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures Journal of Engineering asphalt pavement, moisture susceptibility, hydrated lime, tensile strength. |
| title | Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures |
| title_full | Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures |
| title_fullStr | Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures |
| title_full_unstemmed | Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures |
| title_short | Effect of Hydrated Lime on Moisture Susceptibility of Asphalt Mixtures |
| title_sort | effect of hydrated lime on moisture susceptibility of asphalt mixtures |
| topic | asphalt pavement, moisture susceptibility, hydrated lime, tensile strength. |
| url | http://joe.uobaghdad.edu.iq/index.php/main/article/view/776 |
| work_keys_str_mv | AT mohammedqadirismael effectofhydratedlimeonmoisturesusceptibilityofasphaltmixtures AT ahmedhusseinahmed effectofhydratedlimeonmoisturesusceptibilityofasphaltmixtures |