REFLECTION BEHAVIOUR OF ROAD SURFACES
REFLEXIONSVERHALTEN VON FAHRBAHNBELAEGEN
THIS WORK CONTAINS DATA ON THE REFLECTION CHARACTERISTICS OF 20 WEARING COURSES WHICH HAVE DIFFERENT MINERAL TYPES, COMPOSITION OF MATERIALS, LARGEST GRAIN SIZE AND TYPE OF SAND. THE QUALITATIVE INFLUENCE OF THESE ENGINEERING PARAMETERS ON THE REFLECTION CHARACTERISTICS IS PROVED, WITH 3 DIFFERENT WEAR CONDITIONS STUDIED IN ADDITION TO 5 DIFFERENT CONDITIONS OF MOISTURE. IN ADDITION THE INFLUENCE OF THE OBSERVATION ANGLE ON REFLECTION IS INVESTIGATED. A NEW TYPE OF REFLECTION MEASURING DEVICE AND A WEAR SIMULATOR WERE DEVELOPED FOR THE INVESTIGATION. IT IS NOT POSSIBLE TO OBTAIN QUANTITATIVE INFORMATION ON THE RELATIONSHIP BETWEEN THE ENGINEERING AND LIGHTING-TECHNOLOGICAL VALUES ON THE BASIS OF THE 20 WEARING COURSES INVESTIGATED - MORE DETAILED MEASUREMENTS ARE NECESSARY. COMPARISONS WITH OTHER INVESTIGATIONS ARE DIFFICULT, SINCE ONLY A FEW MEASUREMENTS WERE CARRIED OUT WITH THE INTERNATIONALLY STIPULATED ANGLE OF OBSERVATION OF 1 DEGREE INCLINATION.
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Authors:
- Leins, W
- VON BERG, P
- Publication Date: 1978
Language
- German
Media Info
- Pagination: 202P
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Serial:
- FORSCHUNGSBERICHTE DES LANDES NORDRHEIN-WESTFALEN, FACHGRUPPE UMWELT/VERKEHR 2752
- Issue Number: 2752
- Publisher: WESTDEUTSCHER-VERLAG
Subject/Index Terms
- TRT Terms: Bituminous mixtures; Luminance; Measurement; Measuring instruments; Minerals; Mix design; Reflectivity; Sand; Surfacing; Water; Wear; Wearing course (Pavements)
- ITRD Terms: 6155: Apparatus (measuring); 4967: Bituminous mixture; 525: Luminance; 6136: Measurement; 4051: Mineral; 4714: Mix design; 5926: Reflectivity; 4105: Sand; 2972: Surfacing; 4355: Water; 5293: Wear; 2980: Wearing course
- Subject Areas: I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01288961
- Record Type: Publication
- Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
- Files: ITRD
- Created Date: Nov 21 2010 1:34AM