What is BS EN 16849 - Water content in bituminous emulsions about?
BS EN 16849 is the European standard on bitumen and bituminous binders that discusses emulsions to enable the dispersion of the bitumen, ensure the stability of the emulsion and guarantee adherence with aggregates at ambient temperature.
BS EN 16849 specifies a quick method for determining, by evaporation, the water content of bituminous road emulsions, with or without polymer added.
For bituminous emulsions without flux oil, bituminous emulsions containing vegetal flux oil, and
bituminous emulsions containing up to 1,5 % mass of mineral flux oil in the emulsion, BS EN 16849, according to the selected operating conditions is considered as an alternative method to the reference methods EN 1428 [1] and EN 1431 [2].
Above a mineral flux oil content of 1,5 % by mass, depending on the volatility of the flux oil:
- The present method can be used if the user can prove its reliability in comparison to EN 1428 or EN 1431.
- The present method can only be used by correcting the result by means of a previously established correlation with the reference method EN 1428 or EN 1431.
In case of dispute, the water content should be determined according to EN 1428 or EN 1431.
Who is BS EN 16849 - Water content in bituminous emulsions for?
BS EN 16849 on bitumen and bituminous binders is useful for:
- Builders
- Manufacturers of bituminous binders and sealing materials
- Manufacturers and suppliers of thermoplastic polymers
Why should you use BS EN 16849 - Water content in bituminous emulsions?
Water content is the amount of water present in a material in terms of percentage by weight of the material and water is isolated from the bituminous mixture to determine the amount of water present in the sample.
BS EN 16849 provides the reagent and apparatus requirements to test water content in bituminous emulsions.
BS EN 16849 navigates you through the sampling of the test specimen and test procedure that includes control of the apparatus calibrated for temperature and weighing accuracy.
Calculation of the water content and expression of results with the precision of the test methods are set out in BS EN 16849.
Furthermore, BS EN 16849 allows you to produce bituminous emulsions by evaluating the water concentration in bitumen in order to avoid the foaming of bitumen when heated above its boiling point.
As a result, bituminous emulsions can be utilised for road transit and storage, as well as maintenance and repair operations, ensuring their flexibility, durability and longevity.
