Mechanistic evaluation of asphaltic pavement based on Benkelman Beam Deflection
When empirical evaluation of pavement layers overlay was practiced, the selection of layer thickness and properties was made without benefit of mechanistic analysis. The application of elastic theory to the design of overlays on existing pavement requires that the modulus of elasticity be assi...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2003
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/8144/1/24p%20ROSNAWATI%20BUHARI.pdf http://eprints.uthm.edu.my/8144/2/ROSNAWATI%20BUHARI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/8144/3/ROSNAWATI%20BUHARI%20WATERMARK.pdf |
| Summary: | When empirical evaluation of pavement layers overlay was practiced, the
selection of layer thickness and properties was made without benefit of mechanistic
analysis. The application of elastic theory to the design of overlays on existing
pavement requires that the modulus of elasticity be assigned to the existing
structural system. Elastic moduli are determent from pavement surface deflection.
Benkelman Beam conducted under WASHO method to collect data in order to find
deflection condition of existing pavement. Based on present study, graphical
method which deflection dependent was developed to determine parameters of
elasticity. The objective of the present study are to find out the elastic/stiffness
modulus parameters for the layer of asphaltic pavement by using Benkelman beam
deflection and compare the remaining life of the existing pavement and to propose
overlay thickness based on conventional and mechanistic analysis approach. As
the conclusion, from the analysis I have determined that the elastic modulus can
obtained by interpretation of Benkelman Beam deflection test also have proved
that the mechanistic analysis is the available evaluation for existing pavement. |
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