TESTS ON THE REPAIR OF WHEEL TRACKS ON THE N1 HIGHWAY (MADRID PROVINCE) WITH SPECIAL EQUIPMENT

PRUEBAS DE CORRECCION DE RODERAS, REALIZADAS EN LA CN-1 (PROVINCIA DE MADRID) CON MAQUINARIA ESPECIAL.

THE CHARACTERISTICS ARE DESCRIBED OF MACHINES USED FOR THE REPAIR OF WHEEL TRACKS. THIS EQUIPMENT COMPRISES A SELF-PROPELLING MACHINE WHICH APPLIES INFRA-RED HEATING (140 DEGREES C) TO THE PAVEMENT WITH THE AID OF SIXTY PROPANE BURNERS AND COVERS IT WITH A LAYER OF ASBESTOS TO AVOID COOLING. THEN IT SCARIFIES THE PAVEMENT WITH THE AID OF VERTICAL BARS, CUTS TO APPROXIMATELY 55 MM AND LEVELS FINALLY, PLACING THE BITUMINOUS MIX REMOVED IN A LOADER. THE OPERATION IS COMPLETED BY THE COMPACTION WITH A TANDEM VIBRATING COMPRESSOR. THIS IS SOMETIMES USED TO CUT DOWN THE RIDGES OF THE GROOVES AND TO LEVEL THEM, THIS BEING A TEMPORARY SOLUTION, SOMETIMES THE ENTIRE LAYER IS RAISED. THE MEAN RATE OF PROGRESS OF THE MACHINE IS APPROXIMATELY 20 M/H AND THE WORKING CUTTING WIDTH IS 2 M. DATA RELATING TO THE EXECUTION OF DIFFERENT TYPES OF WORK ARE PRESENTED AS WELL AS THE CHARACTERISTICS OF THE SECTION UPON WHICH IT HAS BEEN TESTED: THE ALIGNMENT PAVEMENT LAYERS, EXISTING TRACKING GROOVES, AND TESTS ON SAMPLES TAKEN BEFORE THE REPAIR WORK AND FROM THE BITUMINOUS MIX SAMPLES REMOVED BY THE MACHINE.

  • Corporate Authors:

    SECCION DE NORMAS Y NUEVAS TECNICAS

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  • Publication Date: 1974

Language

  • Spanish

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Filing Info

  • Accession Number: 01298464
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Nov 21 2010 6:46AM