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Need to proper roads and highways will increase with increasing automotive industry and development of cities and countries. Among petroleum products used in road construction and asphalt application for soil stability and adhesion between layers of asphalt are bitumen soluble and Bitumen Emulsions. Bitumen Emulsions are subset of water emulsion that in this type of emulsion dispersed phase is lipophilic and continuous phase is hydrophilic, for mixing these two phases used surface activating agents called emulsifier. Bitumen Emulsions are under other similar emulsion laws hence; basically Bitumen Emulsions from Thermodynamic point of view are unstable fluid and disperse. Considering the importance and benefits of using Bitumen Emulsions, this paper tries to show influence of various factors such as emulsion source, type and amount of emulsifier, particles size of emulsion and other properties of the emulsions are determined.