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Title: STATISTICAL ANALYSES OF TEMPERATURE AND MOISTURE EFFECTS ON PAVEMENT STRUCTURAL PROPERTIES BASED ON SEASONAL MONITORING DATA
Accession Number: 00730298
Record Type: Component
Record URL: Availability: Find a library where document is available Abstract: In light of the data collected under the Seasonal Monitoring Program of the Long-Term Pavement Performance Program, the relationship between climatic factors and pavement structural properties is investigated. Using the deflection data collected at a seasonal site over the course of 1 year, layer elastic moduli are backcalculated. The correlations between pavement structural properties (represented by layer elastic moduli) and climatic factors (represented by pavement temperature and moisture conditions) are studied using a series of statistical analyses. Bivariate analysis is used to evaluate linear association between pairs of variables. Principal components analysis is used to identify principal constructs of the system. Multiple regression is used to calibrate linear models. Numerical optimization is used to calibrate nonlinear models that correlate backcalculated layer moduli to pavement temperature. The latter models are then used to derive a temperature correction algorithm of backcalculated asphalt concrete elastic modulus.
Supplemental Notes: This paper appears in Transportation Research Record No. 1540, Recent Research in Pavement Performance.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Ali, H ALopez, APagination: p. 48-55
Publication Date: 1996
Serial: ISBN: 0309059208
Features: Figures
(5)
; References
(11)
; Tables
(7)
TRT Terms:
Algorithms; Backcalculation; Calibration; Climate; Deflection; Impacts; Layer coefficient (Pavements); Modulus; Modulus of elasticity; Moisture content; Monitoring; Multiple regression analysis; Numerical analysis; Pavements; Seasons; Statistical analysis; Structural analysis; Temperature; Thermal stresses
Uncontrolled Terms: Old TRIS Terms: Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways
Files: TRIS, TRB
Created Date: Dec 23 1997 12:00AM
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