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To promote road safety, colored asphalt pavements such as red, blue or yellow colored bicycle lanes and intersections / plateaus are applied in the Netherlands and increasingly abroad. Other arguments for applying colored asphalt pavements include reducing heat stress in inner-city areas or are aesthetic in nature. These colored asphalt pavements can be realized in different ways, such as painting the road surface to using colored crushed stones in combination with synthetic pigmentable polymer modified clear binders as colored asphalt, all with their specific advantages and disadvantages.
In practice, a colored asphalt pavement with a (high-quality) polymer modified clear binder shows the best results with a long service life. These polymer modified clear binders have the advantage that a bright color can be achieved with relatively little added pigment. This is, in contrast to conventional black bitumen with which a dark color is still obtained, with a lot of added (powder) pigment.
A colored asphalt with a polymer modified clear binder will behave like a standard black asphalt.
Synthetic pigmentable polymer modified clear binders have the advantage that a bright colored asphalt can be achieved with relatively little (1-1,5%) pigment. This is in contrast to conventional black bitumen with which a dark color is still obtained with 5% (powder) pigment.
Synthetic pigmentable polymer modified clear binders generally consist of petrochemical components derived from petroleum (just like conventional bitumen). With the right composition of components in a synthetic polymer modified clear binder, the properties of a conventional (polymer modified) bitumen can then be simulated with a light brown color. The properties of the Synthetic pigmentable polymer modified clear binders may well vary from standard quality bitumen to high quality polymer modified bitumen. Depending on the type of the asphalt mix properties is needed.
Synthetic pigmentable polymer modified clear binders are also available for warm mix asphalt. Production and processing < 140 Degrees Celsius. This eco-conscious feature not only makes the material more environmentally friendly (Reducing energy costs 30%) but also increases safety during application and use.
Warm mix asphalt produced with Sealoflex® Color remains below the German legal processing requirement emissions of fumes and aerosols < 1.5 Mgr/M3
Reasons for using clear binders/colored asphalt:
Controlling and guiding traffic
Increasing safety
Improving comfort
Sustainable development
Reducing energy costs
Increasing attractiveness (Architectural freedom)
Reducing heat island effect.
Experience the vibrant potential of colored asphalt with our synthetic colorless binder solutions, where innovation meets sustainability.
The Netherlands, Rotterdam – Maastunnel
The Netherlands, Rotterdam – Maastunnel
