Effect of Hydrated Lime on Asphalt Cement and Asphalt Mixtures Properties
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2019, Vol 16, Issue 1
Abstract
In 2014, it was noticed that, asphalt cement obtained from some Egyptian refineries did not meet the specification limits of asphalt cement 60/70 used in Egypt. Using this defective asphalt will produce low stability and high flow asphalt mixtures which leads to the formation of rutting and cracks in the pavement. This study has two objectives. The first objective is to investigate the effect of using hydrated lime on defective asphalt and also on its asphalt mixtures properties. While the second objective is to evaluate the performance of asphalt mix containing hydrated lime. To achieve these study objectives, an experimental program was designed. Selecting and performing qualification tests on aggregates and two specimens of asphalt. Asphalt specimens were defective asphalt and non-defective asphalt. Adding different percentages of hydrated lime to defective asphalt cement and performing some tests to determine the properties of modified asphalt. Then performing Marshall, loss of stability, indirect tensile strength and wheel tracking tests on modified and unmodified asphalt mixtures to evaluate the characteristics and performance of asphalt mix. After analyzing the results, the study reveals that the optimum hydrated lime percent to be used in asphalt mixture is 5 % by weight of asphalt.
Authors and Affiliations
Ahmed Mohamady Abd-Allah, Mahmoud Fathy Abd-Elmaksoud Khamis, Maysa Ahmed Abd-Allah Asker
Keywords
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- EP ID EP438913
- DOI 10.9790/1684-1601024757.
- Views 65
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