MULTILASER PROFILOMETER CERTIFICATION FOR MEASUREMENT OF RUTFLINING IN PAVEMENTS

• DOI: 10.22533/at.ed.3173132325044

• Palavras-chave: Rutting and depths, laser profilometer.

• Keywords: Rutting and depths, laser profilometer.

• Abstract:

  The purpose of the validations and certification is to guarantee the reliability of the measurements, which will influence the analysis and approach of solution alternatives such as: underdesign or oversizing of the pavement structure, periodic maintenance or rehabilitation needs, and post-construction evaluations. to determine the probable causes of premature pavement deterioration.

  An initial evaluation of the pavement condition was made to identify potential sections for the execution of the evaluations.

  Differentiated pavement sections were identified with a range of rutting depths of: 5 mm, 10 mm, 15 mm, 20 mm and greater than or equal to 25 mm; in a test sector length of 350 m, which corresponds to 35 sample units of 10 m length.

  Three evaluators made manual measurements of the existing rutting, on the left and right tracks, of the 35 pavement sample units.

  Compilation of the cross section, depth and width of the rutting with the Multilaser profilometer, both in the left and right track of each section at speeds of 40 and 60 km/hour, repeating six (06) times for each speed.