Abstract
SMA (stone matrix asphalt or stone mastic asphalt) was initially discovered in German & European and countries as impermeable or highly resilient wearing surface for bridge decks. Generally, it consists of two parts, a binder rich mortar and a coarse aggregate. It is made by a mixture of crushed fine and coarse aggregates, stabilizer such as polymers or fibres, cement & mineral filler. In present work, an effort has been made to study the properties of Stone Matrix Asphalt mixes with cellulose fibre and using recycled pavement material as well as slag in partial replacement of stone aggregates as coarse and fine aggregate grades. This research project was done to check the usage of recycled pavement material in Stone Matrix Asphalt mixture by conducting Marshall test in the lab in which flow & stability value was examined along with other properties of mixtures. Here IRC -SP-79 specification, aggregate gradation is taken for stone matrix asphalt. Binder used is 60/70 penetration grade bitumen. Binder content is varied as 4%, 5%, 5.5%, 6%, and 7% by weight of aggregates and fibre used is optimum fibre content at 0.3% by the weight of aggregate. Key Words: SMA (Stone Matrix Asphalt), RAP (Recycled Asphalt Pavement)
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