Determination of residual binder and oil distillate from bitumen emulsions by distillation

9 Determination of residual binder and oil distillate from bitumen emulsions by distillation 

This test method is for the quantitative determination of residual binder and oil distillate in bitumen emulsions for specification acceptance. The method is used to obtain residue and oil distillate for further testing. 

Residual binder is the residue from a bitumen emulsion after distillation of water and oil distillate. 

Oil distillate is the hydrocarbon fraction that is distilled and collected in the graduated cylinder under conditions specified. 

According to CEN EN 1431 (2009), a bitumen emulsion sample of approximately 200 g is placed in a pre-weighted aluminium alloy still or iron still (including lid, clamp, thermometers and gasket, if gasket is used). The lid allows two thermometers to be inserted through a stopper and an outlet of suitable diameter to enable a connection tube to be connected also through a stopper. 

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CEN EN 1431. 2009. Bitumen and bituminous binders — Determination of residual binder and oil distillate from bitumen emulsions by distillation. Brussels CEN. 

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