Study on Behaviour of Warm Mix Asphalt Using chemical additives.
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 5
Abstract
Warm mix asphalt (WMA) technology gaining popularity in recent period, which are broadly studied and gradually applied into the industries in past years. Warm Mix Asphalts (WMA) is modified Hot Mix Asphalt (HMA) which is produced, laid and compacted at temperature which is lower than conventional Hot Mix Asphalt. Warm Mix Asphalt is produced by mixing chemical additives to the conventional mix to improve the pavement performance. In this study an attempt is made to compare the mix design, drain down and moistureinduced damage properties of Warm Mix Asphalt produced with the chemical additive (Zycotherm and Sasobit) and Hot Mix Asphalt for Stone Matrix Asphalt (SMA) Grade 2. The most obvious benefit of the Warm Mix Asphalt is the reduction in fuel consumption, when Compared with Hot Mix Asphalt, Warm Mix Asphalt reduces the fossil fuel emissions significantly The adopted mixing temperatures for Hot Mix Asphalt was 150-165 °C and the mixing temperatures for Warm Mix Asphalt was 120-135°C, with an additive dosage rate of 0.05% and 0.1% (Zycotherm), and 1% and 3% (Sasobit) by weight of the binder. The Warm Mix Asphalt with Zycotherm of 0.05% has the maximum Optimum Binder Content value. The Warm Mix Asphalt with Zycotherm of 0.05% has the maximum Void filled Mineral Aggregates value. The Warm Mix Asphalt with Sasobit of 3% has the maximum Stability Value when compared to other mixes. The Warm Mix Asphalt with Zycotherm of 0.05% has the maximum Flow value when compared to other mixes.
Authors and Affiliations
Shivendra. B. T, Poshitha . B.
Keywords
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- EP ID EP438527
- DOI 10.9790/1684-1505018692.
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