United States Department of Transportation
i
Evaluation of Performance of Light-Weight Profilometers
-
2003-10-01
-
[PDF-1.90 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
TRIS Online Accession Number:00969760
-
Edition:Final Report
-
Corporate Publisher:
-
Abstract:Several lightweight, non-contact profilometers (LWP) are now available to measure profiles of newly constructed Portland Cement Concrete Pavement (PCCP). As constructed smoothness measurements by four LWP?s and the California-type profilograph were collected on four new PCCP sections on I-70 in Kansas. The LWP?s were: Ames Engineering LISA, K. J. Law T6400, ICC ATV LWP, and SSI LWP. Smoothness measurements were also made by two high-speed profilometers, K. J. Law?s T6600 and KDO T?s South Dakota profilometer made by ICC. The data was statistically analyzed in the Analysis of Variance (ANOVA) and the Least Square Means (LSMeans) approaches. The lightweight profilers showed statistically similar Profile Index (PI) values when performing as the California-type profilograph. The lightweight profilers reported slightly higher PI than the manual California-type profilograph using ProScan to electronically reduce the traces. The International Roughness Index (IRI) values reported by LISA, T6400, and ICC ATV were statistically similar. Significant differences were observed in some cases when comparing the values obtained from the South Dakota and T6600 high-speed profilometers and SSI LWP. Variable coefficients of determination, R2, values were obtained when performing a linear regression analysis of the PI and IRI data for the individual profilers and for all sections tested by a given profiler. No reasonably consistent correlation between PI and IRI was established. 70 p.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
