Type and quantity of bituminous binder

The binder to be used in surface dressings is cationic bituminous emulsion, unmodified or polymer modified. However, in most of the cases, polymer-modified bitumen emulsion is used. 

Great emphasis is given to the cohesion of bituminous emulsion residue by using the Vialit pendulum test according to CEN EN 13588 (2008). According to the RN 39 design guide. 

A2 Motorways where some braking regularly occurs 0.35 SO SO SO SS SS 60 60 65 65 65 

The traffic level is expressed in terms of the expected commercial vehicles (cv) per lane, per day (cv/lane/day). 

Site categories K and Q should not be applied to the circulatory parts of a roundabout. 

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