FLEXIBLE PAVEMENTS - EFFECTIVE USE OF EQUIPMENT

BITUMINOESE FAHRBAHNBEFESTIGUNGEN - SINNVOLLER MASCHINENEINSATZ

AN ASPHALTIC FLEXIBLE PAVEMENT MADE IN ACCORDANCE WITH TESTED TECHNOLOGICAL PRINCIPLES, WHICH IS SMOOTH AND COMPACTED TO THE OPTIMUM DEGREE, CAN RESIST THE MOST SEVERE LOADS. IT IS SUBJECTED TO VERTICAL LOADING (AXLE LOAD) AND TANGENTIAL FORCES (STARTING, BRAKING, DRIVING ON CURVES), THE RESULTING MAXIMUM STRESSES LYING 71-12 CMS UNDER THE SURFACE OF THE PAVEMENT IN THE BASE COURSE. CARE MUST BE TAKEN OF THE STABILITY AND RESISTANCE TO DEFORMATION IN THIS REGION. THE REQUIREMENTS OF THE ASPHALT LAYER AND THE RELEVANT SPECIFICATIONS TV BIT 3/72 AND TVT 72 AND ADDENDA ARE DISCUSSED. THE MOST EFFICIENT USE OF PLANT IN THE PRODUCTION OF VARIOUS BITUMINOUS LAYERS IS NOW OF PARTICULAR SIGNIFICANCE. AN IMPORTANT PREREQUISITE FOR RATIONAL, MODERN LAYING METHODS IS A STABLE ROAD FORMATION WITH THE CORRECT TRANSVERSE LATERAL GRADIENTS FOR DEWATERING. PRELIMINARY WORK BEFORE THE ACTUAL CONSTRUCTION AND DEVELOPMENT OF THE WORK SHOULD BE AT THE OPTIMUM LEVEL POSSIBLE, AND FOR THIS THE CONSTRUCTIONAL DATA OF THE PLANT SHOULD BE KNOWN. THE MOST ECONOMICAL TECHNIQUE MUST BE EMPLOYED FOR THE COMPACTION OF THE FORMATION. FOR THIS PURPOSE INFORMATION MAY BE OBTAINED FROM THE STVE-STV 65 AND TVT 72, AND FOR THE THICKNESS OF LAYERS FROM TV BIT 3/72. IT IS IMPORTANT THAT THERE IS A CORRELATION BETWEEN THE CAPACITY OF THE MIXING PLANT, AND THE TRANSPORT AREA AND EXTENT, THE CAPACITY OF THE FINISHER AND THE NUMBER AND CAPACITY OF ROLLERS AND THE LAYING TRAIN. SINGLE LAYER LAYING OF ASPHALTIC COURSES UP TO 30 CM THICK IS POSSIBLE; IN ORDER TO ENSURE EVENNESS, HOWEVER, TWO LAYERS ARE NORMALLY LAID. IMPORTANT ASPECTS OF THE USE OF EQUIPMENT FOR COMPACTION AND NUMEROUS PRACTICAL HINTS ARE INCLUDED.

Language

  • German

Media Info

  • Pagination: 29-32
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01293110
  • Record Type: Publication
  • Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
  • Files: ITRD
  • Created Date: Nov 21 2010 3:51AM