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Asphalt reinforcement saves 24.3 t CO2 per road kilometre

A simplified transfer of the results of a conventional construction project replacing the binder and the surface layer to a road maintenance project where asphalt reinforcement was successfully applied gives a good estimate of the CO2 savings for the rehabilitation method with asphalt reinforcement.

More than 60 % of the CO2 emissions generated during the entire construction phase are caused solely by the energy-intensive production of the asphalt mixes and the associated processes. This was the result of a detailed investigation of all CO2 emissions in a conventional construction project.

In comparison, a CO2 saving of 24.3 t CO2 per rehabilitated road kilometre can be identified in a project where the cracked binder is reinforced rather than replaced. The reinforcement stops the reflection cracks.

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