CONSTRUCTION CONTROL PROFILOGRAPH PRINCIPLES

IN 1963, THE TEXAS HIGHWAY DEPARTMENT IN COOPERATION WITH THE BUREAU OF PUBLIC ROADS INITIATED A RESEARCH PROJECT TO DEVELOP A PROFILOGRAPH WITH WHICH TO CONTROL PAVEMENT SURFACE ROUGHNESS DURING CONSTRUCTION OPERATIONS. TO DETERMINE THE DESIRABLE QUALITIES OF SUCH AN INSTRUMENT, STUDIES WERE MADE OF THE EFFECT OF THE NUMBER OF AVERAGING WHEELS, THE ARRANGEMENT OF THE AVERAGING WHEELS AND FRAMEWORK, AND THE LENGTH OF THE INSTRUMENT. STUDIES HAVE INDICATED THAT THE NUMBER OF AVERAGING WHEELS AFFECTS THE ACCURACY OR READABILITY OF THE OUTPUT RESULTS. BETTER RESULTS ARE PRODUCED IF THE AVERAGING WHEELS ARE SPACED EVENLY ALONG THE LENGTH OF THE INSTRUMENT. THE SELECTION OF THE LENGTH OF THE EQUIPMENT DEPENDS UPON THE MAGNITUDE OF THE LENGTH OF THE SURFACE IRREGULARITIES TO BE EXPERIENCED. THE STUDIES WERE MADE USING A MODEL AND CONFIRMED USING THEORETICAL METHODS. /AUTHOR/

  • Supplemental Notes:
    • Bpr No 10, 1-8-63-49
  • Corporate Authors:

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701
  • Authors:
    • Hankins, K D
  • Publication Date: 1967-1

Subject/Index Terms

Filing Info

  • Accession Number: 00214447
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: May 25 1994 12:00AM