Ultrasound data for laboratory calibration of an analytical model to calculate crack depth on asphalt pavements.

ABSTRACT: This article outlines the ultrasound data employed to calibrate in the laboratory an analytical model that permits the calculation of the depth of partial-depth surface-initiated cracks on bituminous pavements using this non-destructive technique. This initial calibration is required so that the model provides sufficient precision during practical application. The ultrasonic pulse transit times were measured on beam samples of different asphalt mixtures (semi-dense asphalt concrete AC-S; asphalt concrete for very thin layers BBTM; and porous asphalt PA). The cracks on the laboratory samples were simulated by means of notches of variable depths. With the data of ultrasound transmission time ratios, curve-fittings were carried out on the analytical model, thus determining the regression para

SUBMITTER: Franesqui MA 

PROVIDER: S-EPMC5512209 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature