Laboratory Study On The Durability Characteristics (Moisture Damage Evaluation) Of Asphalt Concrete Wearing Course (AC-WC) Utilizing Bantak And Clereng As Aggregate (Using Marshall Methods)

概要

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The increasing of road material demand particularly on aggregate has been followup by finding the new alternative materials. Local materials such as Bantak and Clereng are potentially to substitute current need. Apparently Bantak is having high porosity and abrasion value more than 40%, on other hand Clereng is giving lower abrasion value (± 25%) than Bantak. Therefore, it is essential to study the performance and durability of these materials in AC-WC mixture. To find the durability index, the specimens are immersed around 0 (unconditioned) to 14 days at 60°C and tested by using Marshall and ITS. From the Marshall test, the index values for aggregate variations I, II, and III are 35.01%, 28.11%, and 26.10% respectively, while from ITS test, the indexes are 33.70%, 27.97%, and 25.45% respectively. The best result is variation III as the lowest value because has less of Bantak, which means less porosity and water absorption.