MAINTENANCE WORK IN ROAD CONSTRUCTION
UNTERHALTUNGSARBEITEN IM STRASSENBAU
THE EFFECT OF SUNLIGHT, TRAFFIC LOADING, STUDS AND DE-ICING SALT RESULT IN PERMANENT DEFORMATION AND WEAR OF HIGHWAY PAVEMENTS. IN RECENT YEARS, SCARIFYING AND DE-SCALING EQUIPMENT HAS BEEN USED SUCCESSFULLY FOR THE ELIMINATION OF TRACKING GROOVES AND TRANSVERSE GROOVES. THIS INVOLVES REMOVING A DEPTH OF 3 TO 4 CMS OF THE ASPHALTIC PAVEMENT AND RENEWAL OF THE PAVEMENT BY MEANS OF A FINISHER. BOTH COLD AND WARM SCARIFIERS CAN BE EMPLOYED OF VARIOUS CAPACITIES AND WIDTH OF SCARIFYING. THE ALFELDER ROAD SCARIFYER TYPE 50, HAS A SPEED OF ADVANCE OF 2 TO 3 M/S AND AN ADJUSTABLE SCARIFYING WIDTH UP TO 200 MM. WHERE DE-SCALING IS EMPLOYED, THE BITUMINOUS PAVEMENT IS FIRST HEATED BY PROPANE GAS BURNERS TO A TEMPERATURE OF BETWEEN 120 DEG C AND 200 DEG C. THE REPAVE TECHNIQUE IS DEVELOPED BY SCHOELKOPF AND IS A NEW DEVELOPMENT; HERE THE MATERIAL SCRAPED OFF IS RE-USED, SO THAT A MATERIAL SAVING OF 60% RESULTS. IN THE RE-FORMING TECHNIQUE THE FINISHER FOLLOWING AT A DISTANCE OF 15 M LAYS AN ADDITIONAL PAVEMENT. REPAVE AND RE-FORMING TECHNIQUES HAVE ALREADY BEEN TESTED AND GIVEN EXCEPTIONALLY GOOD RESULTS, WHICH HAVE BEEN CHECKED BY MEANS OF CORE BORINGS.
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Authors:
- Mosch, K
- Publication Date: 1976
Language
- German
Media Info
- Pagination: 829-37
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Serial:
- Tiefbau
- Volume: 18
- Issue Number: 12
Subject/Index Terms
- TRT Terms: Bituminous mixtures; Equipment; Fracture mechanics; Maintenance; Recycling; Repairing; Wearing course (Pavements)
- Uncontrolled Terms: Breaking up; Laying
- ITRD Terms: 4967: Bituminous mixture; 3604: Breaking up; 3674: Equipment; 3623: Laying; 3847: Maintenance; 4573: Recycling (mater); 3635: Repair; 2980: Wearing course
- Subject Areas: Maintenance and Preservation; I61: Equipment and Maintenance Methods;
Filing Info
- Accession Number: 01293095
- Record Type: Publication
- Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
- Files: ITRD
- Created Date: Nov 21 2010 3:51AM