A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Pavement Serviceability on Utah Highways
The publication is the fifth interim report of a continous pavement performance study. Present Serviceability Indexes were determined for a 121 highway projects constructed since 1962. The (PSI) is a numerical rating from 0-5; the higher values correspond to the best pavements. The (PSI) defines the relationship between a known number of specific axle loads and the actual performance for various pavement designs. The pavement criteria for this evaluation are the Roughness Index (RI) which is roughness as inches per mile obtained by profilograph testing, cracking and patching from visual observations, and rut depths measured with a specially designed rut depth gauge. The preceding Present Serviceability Indexes and the current PSI and all subsequent graphical plots for the PSI will develop a curve representing pavement performance. The preceding evaluation resulted in a significant amount of projects exhibiting a decrease in roughness and corresponding increase in the PSI rating. This temporary smoothing is accepted as a natural result for pavement wear as evidenced by this research and communications with agencies sponsoring similar studies. (Author)
Evaluation of Pavement Serviceability on Utah Highways
The publication is the fifth interim report of a continous pavement performance study. Present Serviceability Indexes were determined for a 121 highway projects constructed since 1962. The (PSI) is a numerical rating from 0-5; the higher values correspond to the best pavements. The (PSI) defines the relationship between a known number of specific axle loads and the actual performance for various pavement designs. The pavement criteria for this evaluation are the Roughness Index (RI) which is roughness as inches per mile obtained by profilograph testing, cracking and patching from visual observations, and rut depths measured with a specially designed rut depth gauge. The preceding Present Serviceability Indexes and the current PSI and all subsequent graphical plots for the PSI will develop a curve representing pavement performance. The preceding evaluation resulted in a significant amount of projects exhibiting a decrease in roughness and corresponding increase in the PSI rating. This temporary smoothing is accepted as a natural result for pavement wear as evidenced by this research and communications with agencies sponsoring similar studies. (Author)
Evaluation of Pavement Serviceability on Utah Highways
W. J. Liddle (author) / G. M. Jones (author) / D. E. Peterson (author) / D. C. Muir (author)
1969
306 pages
Report
No indication
English
Civil Engineering , Pavements , Roads , Performance(Engineering) , Utah , Traffic , Bituminous coatings , Loading(Mechanics) , Wear resistance , Roughness , Construction materials , Asphalt , Concrete , Cements , Mechanical properties , Cracks , Statistical data , PSI(Present Serviceability Index) , Present serviceability index , Portland cements
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