00302410

Component

http://onlinepubs.trb.org...s/trr/1979/715/715-008.pdf

https://scholar.google.co...usch&publication_year=1979

Full-scale pavements can be tested under controlled climatic conditions and with a controlled groundwater level by using the Danish road-testing machine. The response of the pavement in terms of stresses, strains, and deflections can be monitored during performance tests of a maximum ten-thousand 65-kN wheel loads/day. A qualitative evaluation of pavement response during the first two test series (0.5 million loads) has confirmed that the machine is well suited to simulating heavy traffic loading. The response of the pavement was reasonably well predicted from linear elastic theory, considering the large scatter in the measured values and in the elastic parameters of the materials. No cracking was observed during the two performance tests although both Danish and Nottingham criteria predicted extensive cracking. Subgrade criteria (normal stress and strain) derived partly from the AASHO Road Test agreed fairly well with a decrease of the present serviceability index to about 2.5, but this deterioration was not associated with any appreciable permanent deformation of the subgrade. Finally, prediction of pavement performance in terms of rutting and present serviceability index was attempted by using a simulation program developed at the Technical University of Denmark. Reasonably good agreement was found for both of these performance criteria. (Author)

Publication of this paper sponsored by Committee on Strength and Deformation Characteristics of Pavement Sections. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01414348

pp 52-62

1979

Transportation Research Record

0309029627

Print

Figures (17) ; References (24)

Deformation; Deformation curve; Laboratory tests; Pavement cracking; Pavement performance; Road tests; Ruts (Pavements); Simulation; Subgrade (Pavements); Testing equipment; Traffic loads

Rut

Freight Transportation; Highways; Pavements; Vehicles and Equipment

TRIS, TRB

Jan 30 1980 12:00AM

• DISTRESSES AND RELATED MATERIAL PROPERTIES FOR PREMIUM PAVEMENTS
• EVALUATION OF PERMANENT DEFORMATION IN ASPHALT CONCRETE PAVEMENTS
• MEASURING PAVEMENT PERFORMANCE BY USING STATISTICAL SAMPLING TECHNIQUES
• QUANTIFYING PAVEMENT SERVICEABILITY AS IT IS JUDGED BY HIGHWAY USERS
• RESPONSE AND DISTRESS MODELS FOR PAVEMENT STUDIES
• SEASONAL AND SHORT-TERM VARIATIONS IN SKID RESISTANCE
• STRUCTURAL DISTRESS MECHANISMS IN CONTINUOUSLY REINFORCED CONCRETE PAVEMENT
• SUBJECTIVE AND MECHANICAL ESTIMATIONS OF PAVEMENT SERVICEABILITY FOR RURAL-URBAN ROAD NETWORKS
• UTILITY DECISION MODEL FOR PAVEMENT RECYCLING