Rheological Behaviour of Warm Mix Asphalt Containing Sasobit

Warm mix asphalt has received considerable attention over the past decade particularly due to its potential environmental benefit such as lower energy consumption and emission, its ability to be placed at lower ambient temperatures making it a suitable material for areas with short construction season. Three warm mix asphalt (WMA) techniques are available; organic additive, foaming, and chemical additive. This study examined Sasobit, a micro crystalline wax which is an organic additive. The concentrations tested were 1.5, 2.5 and 3.5 percent of the base binder. A PG 64-22 asphalt binder from Tehran refinery was used as the base binder. Superpave binder tests showed that Sasobit improves the high temperature rating but it deteriorates the low temperate rating slightly

کلیدواژه ها:

Rheology ، Performance Grading ، Warm Mix Asphalt ، Sasobit