Articles in Taxonomy

European standards for surface dressings and slurry surfacings

The European standards for surface dressings (EN 12271 Surface dressing – Requirements) and slurry surfacings (EN 12273 Slurry surfacing – Requirements) have been approved by CEN working group TC227/WG2. One of the prominent features of these standards is that they set performance requirements rather than prescribing “recipes”. For some requirements the standards leave a number of options to the countries themselves.

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Rate of spread and accuracy of spread of binder and chippings for surface dressing (according to NBN EN 12272-1)

These test methods were developed to measure rates of spread on site, both longitudinally and transversely. The transverse measurements are used to check the operation of chipping and binder spreaders, and the longitudinal measurements to verify whether the rates declared by the contractor have actually been spread on site.

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Sustainability of asphalt pavements

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Global warming is caused mainly by increased concentrations of greenhouse gases, in which CO2 emissions play a major part. Prompted by a number of developments such as the Kyoto protocol, road managers, road contractors and material producers try to reduce emissions. The transport sector is responsible for approximately 25 % of all greenhouse gas emissions, with the greater part being due to road transport. Energy consumption is also closely monitored in the road construction sector. Road managers and contractors have an interest in quantifying greenhouse gas emissions and energy consumption.

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Standards support office (“NAN”)

With support from the Belgian Federal Public Service Economy, SMEs, Middle Classes and Energy, BRRC operates a standards support office that goes by the acronym “NAN”. The object is to inform SMEs in the road branch and make them aware of developments in the field of standardization and, where necessary, to offer them additional support in implementing new standards (which are often mandatory).

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