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Verfahren und Vorrichtung zur Erhoehung der Griffigkeit von Strassenoberflaechen bestehend aus mindestens einem Bindemittel und mineralischen Bestandteilen

Method for improving the anti-skid property of road surfaces consisting of asphalt and mineral grit.
 
: Rochler, S.; Wiedemann, G.

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Frontpage ()

DE 1997-19738928 A: 19970905
DE 1997-19738928 A: 19970905
DE 19738928 C2: 20020711
E01C0023
E01C0023
German
Patent, Electronic Publication
Fraunhofer IWS ()

Abstract
NOVELTY - The method involves progressively subjecting the road surface to a pulsed laser beam. The wave length of the beam is chosen so that more energy is absorbed by the asphalt selectively (2) than by the grit (3) to remove the asphalt. The laser beam is projected from a moving lens system (1) at an angle with a process gas (5) directed from a nozzle (4) on to the road surface. USE - For road surfaces. ADVANTAGE - Achieves laminar removal of asphalt surface to expose grit and improves anti-skid property.

: http://publica.fraunhofer.de/documents/PX-38643.html