1. Description of the product 

ORBITON 25/55-60 modified bitumen is one of the most popular modified bitumen types. It is used in asphalt concrete base and binder courses and for high-stiffness modulus asphalt concrete AC EME1 (at the required stiffness modulus of 14 000 MPa). It can also be used in wearing, binder and base courses made of SMA at sections carrying slow and heavy traffic and in mastic asphalt MA.

2. Properties  

Division based on types and requirements for polymer modified bitumen in Poland acc. to National Annex NA to standard PN-EN 14023:2011/Ap2:2020-02

ORBITON 25/55-60

Property	Unit​	Test Method	Requirement​
Penetration at 25°C​	​0,1 mm	EN 1426	25-55​
Softening Point	​°C	EN 1427	≥60
Force ductility tested using ductilometer (50 mm/min)	J/cm2	EN 13589 EN 13703	≥2 at 10°C
Tensile Test  at 5°C​ (100 mm/min)	J/cm2	EN 13587	NR
Vialit pendulum (impact test)	J/cm2	EN 13588	NR
Change of mass after hardening*	% m/m	EN 12607-1	≤0.5
Retained penetration at 25°C after hardening	​%	EN 12607-1 EN 1426​	≥60
Softening point increase after hardening	​°C	​EN 12607-1 EN 1426​7	≤8
Flash point	​​°C	EN ISO 2592	≥235
Fraass breaking point	​°C	EN 12593	≤-10
Elastic recovery at 25°C	​%	EN 13398	≥60
Elastic recovery at 10°C	%	EN 13398	NR
Plasticity range	​​°C	EN 14023	NR
​Drop in softening point​ after EN 12607-1	​​°C	​EN 12607-1 EN 1427	​TBR
Elastic recovery at 25°C after EN 12607-1	​​%	​EN 12607-1 EN 13398	​≥50
​Elastic recovery at 10°C after EN 12607-1	​%	​EN 12607-1 EN 13398	NR
​Storage stability – difference in softening point	​​​°C	​EN 13399 EN 1427	​≤5
​Storage stability – difference​ in penetration	​0.1 mm	​EN 13399 EN 14276	NR​

* – change of mass may be a positive or negative value

** – depending on the final use, only one method for determining cohesion should be chosen. The cohesion determination by the Vialit method

(EN 13588) should only be chosen for bitumen for surface treatment

NR – No Requirement

TBR – To Be Reported