Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Some Recent Findings in Flexible Pavement Research
The report is based on research done in connection with the study, 'Application of the AASHO Road Test Results to Texas Conditions.' It is concerned primarily with two of the original study objectives as follows: In general, to correlate the average level of pavement performance determined from a two-year controlled traffic test (the AASHO Road Test) with performance of Texas pavements under normal mixed traffic, and to study the effect of weather and the so-called regional effect throughout the state. For flexible pavements in Texas, to determine approximate values (or a range of values) of coefficients for representing Texas materials to replace the layer coefficients determined at the AASHO Road Test for materials used there, and to develop relationships between these coefficients and materials tests. The new approach involves the assumption that load-induced deflections of the pavement surface are an index to the potential rate of pavement deterioration. The results reported include: development of an empirical equation for estimating deflections from thickness and laboratory-determined strength of the pavement structure materials, and use of the equation, together with deflections observed on 323 highway test sections, to evaluate the regional effect. The equation presumably could be used in the design of flexible pavements if deflection criteria were made a part of the design procedure, and if the underlying causes of the regional effect were known. (Author)
Some Recent Findings in Flexible Pavement Research
The report is based on research done in connection with the study, 'Application of the AASHO Road Test Results to Texas Conditions.' It is concerned primarily with two of the original study objectives as follows: In general, to correlate the average level of pavement performance determined from a two-year controlled traffic test (the AASHO Road Test) with performance of Texas pavements under normal mixed traffic, and to study the effect of weather and the so-called regional effect throughout the state. For flexible pavements in Texas, to determine approximate values (or a range of values) of coefficients for representing Texas materials to replace the layer coefficients determined at the AASHO Road Test for materials used there, and to develop relationships between these coefficients and materials tests. The new approach involves the assumption that load-induced deflections of the pavement surface are an index to the potential rate of pavement deterioration. The results reported include: development of an empirical equation for estimating deflections from thickness and laboratory-determined strength of the pavement structure materials, and use of the equation, together with deflections observed on 323 highway test sections, to evaluate the regional effect. The equation presumably could be used in the design of flexible pavements if deflection criteria were made a part of the design procedure, and if the underlying causes of the regional effect were known. (Author)
Some Recent Findings in Flexible Pavement Research
F. H. Scrivner (Autor:in) / W. M. Moore (Autor:in)
1967
51 pages
Report
Keine Angabe
Englisch
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