Properties of Stone Matrix Asphalt Using Carbon Fiber and Glass Fiber
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 6
Abstract
The stone matrix asphalt (SMA) mixture is a gap-graded mix which is characterized by high coarse aggregates, high asphalt contents and fiber additives as stabilizers. Due to stone to stone contact and presence of high filler content, it acts as a stiff matrix and is best suitable for high volume roads and urban intersections where braking effects are more. In general, carbon fibers are added in SMA mixes to avoid oozing of bitumen from the mix. In the present study, in addition to the glass, carbon fibers will be added to the SMA mixes and its properties will be evaluated. Since, the carbon fibers are easily available in India, it is decided to use in the current investigation. Detailed laboratory investigations will be carried out by preparing asphalt concrete mixtures by adding two types of fibers (carbon and Glass) with dosages of 0.3%, 0.4% and 0.5% by weight of total mix. Volumetric properties of the mixes will be determined and various strength tests such as marshal stability will be conducted. On the basis of above tests conclusions will be drawn accordingly fiber is to be selected.
Authors and Affiliations
K. Karunakar, Dr. P. Sravana, K. Govind Goud, T. Sowjanya
Keywords
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