Effect of Frequency-dependent Asphalt Concrete Layer Moduli on Pavement Response

Autor:	TaeKuk Kim, Karim Chatti
Rok vydání:	2008
Předmět:	Asphalt concrete Falling weight deflectometer Materials science Field (physics) business.industry Vertical deflection Moving load Frequency distribution Composite material business Viscoelasticity Moduli
DOI:	10.1520/stp14778s
Popis:	The viscoelastic nature of asphalt concrete (AC) renders its properties to be frequency dependent. Static backcalculation of layer moduli from falling weight deflectometer (FWD) testing does not take into account their frequency dependence. This paper shows the effect of frequency dependent AC properties on the horizontal strain and vertical deflection using the computer program SAPSI-M and field results. The analysis shows that the decrease in horizontal strain with increasing truck speed can be duplicated only by using frequency dependent properties for the asphalt concrete layer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e75efa36eea31e884664252b66a49bf9 https://doi.org/10.1520/stp14778s Zobrazit plný text záznamu