Abstract
It is desirable to have pavement surfaces that last until its designed life. Ravelling, rutting, and potholes are one the pavement failures that are commonly found and those failures are related to the intrusion of moisture onto the asphaltic mixture. This research aims to study the usage of hydrated lime as an additive to improve the moisture susceptibility of the asphaltic mixture. There were two different natural aggregates used in this research project and the prepared specimens were tested by Marshall, Cantabro Loss, and Indirect Tensile Strength tests. From the research results, it was found that hydrated lime was effective in not only improving the moisture susceptibility of the asphaltic mixture, but also increasing the stability and making the asphalt specimens denser. It was also found that it is critical to choose the suitable aggregate to be used in the asphaltic mixture as it can significantly affect the quality of the asphalt specimens.
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