NBN EN 12697-15:2003

This European Standard covers the determination of the tendency of segregation of hot mixtures. The tendency of segregation of bituminous mixtures is influenced by the composition of the mixtures in terms of types and amounts of aggregates and bituminous materials. Segregation in a bituminous mixture is caused by e.g. improper loading of the hopper, lorry, or finisher. Note: This method should only be adopted for mixtures having a flow time from the conical bin of less than 15 s. Gummy mixtures containing additives like polymers, fibres etc. may produce confusing results.