Effect of hydrated lime on moisture susceptibility of asphalt mixtures
Other Title(s)
تأثير الجير المطفأ على تحسس الرطوبة للخلطات الإسفلتية
Joint Authors
Ahmad, Ahmad Husayn Rikabi
Ismail, Muhammad Qadir
Source
Issue
Vol. 25, Issue 3 (31 Mar. 2019), pp.89-101, 13 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2019-03-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Topics
Abstract EN
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 %.
American Psychological Association (APA)
Ismail, Muhammad Qadir& Ahmad, Ahmad Husayn Rikabi. 2019. Effect of hydrated lime on moisture susceptibility of asphalt mixtures. Journal of Engineering،Vol. 25, no. 3, pp.89-101.
https://search.emarefa.net/detail/BIM-875541
Modern Language Association (MLA)
Ismail, Muhammad Qadir& Ahmad, Ahmad Husayn Rikabi. Effect of hydrated lime on moisture susceptibility of asphalt mixtures. Journal of Engineering Vol. 25, no. 3 (Mar. 2019), pp.89-101.
https://search.emarefa.net/detail/BIM-875541
American Medical Association (AMA)
Ismail, Muhammad Qadir& Ahmad, Ahmad Husayn Rikabi. Effect of hydrated lime on moisture susceptibility of asphalt mixtures. Journal of Engineering. 2019. Vol. 25, no. 3, pp.89-101.
https://search.emarefa.net/detail/BIM-875541
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 100-101
Record ID
BIM-875541