Evaluation the Use of Tailings as a Filler in Asphalt Concrete - Wearing Course Based on Results of Laboratory Tests to the Indonesian Specification for Hot-Mix Asphalt Year 2010

Abstract:

This paper discusses the use of tailings for road pavement, especially for Asphalt Concrete Wearing Course (AC-WC) based on laboratory test results. The benefits of this study are: (1) diversification of road pavement materials, (2) the use of tailings optimally as road pavement material, (3) reduce the potential for environmental contamination. Tests on the characteristics of the tailings conducted to evaluate the properties related to its performance as a blending component. In this study, the percentage of tailings by 15%, 20% and 25% is added to the AC-WC mixture. Mix design performed by the method of Marshall. In the optimum asphalt content (OAC) the influence of water resistance and resistance to permanent deformation of sample are evaluated. The best performance is use of tailings by 20%. This mixture is not a mixture of the sensitive to inaccuracies in the asphalt mixture compared with the mixture using tailing by 15% and 25%. Wheel tracking test showed that the mixture has the smallest permanent deformation that is 2 mm.While resistance to water and temperature same for all all mixtures. This study shows that the tailings could be used as a road pavement material, which replaces the sand-sized aggregates.

• Periodical: Advanced Materials Research (Volume 723)
• Pages: 328-336
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.723.328
• Online since: August 2013
• Authors: Lilies Widojoko
• Keywords: AC-WC, Marshall Immersion Test, Marshall Test, Tailing, Wheel Tracking

References

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DOI: 10.1016/j.sbspro.2012.04.158

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