A Mechanistic-Empirical Approach for Asphalt Overlay Design of Asphalt Pavement Structures

Fi, István; Szentpéteri, Ibolya

doi:10.3311/ppci.7408

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…Recent research works [3,8] have encouraged the use of recycled products for road construction applications. Few research works [11,16] have been conducted to use pulverized or steel slag fines as a potential soil modifier or stabilizer.…”

Section: Discussionmentioning

confidence: 99%

Soil Modification by the Application of Steel Slag

Akinwumi

2014

Period. Polytech. Civil Eng.

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Section: Discussionmentioning

confidence: 99%

Soil Modification by the Application of Steel Slag

Akinwumi

2014

Period. Polytech. Civil Eng.

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“…The Finite Element Method (FEM) is the major analysis technique used by researchers to identify causes of reflective cracking. The FEM makes the basic assumption that asphaltic concrete is modeled as an elastic continuum with a finite number of structural elements interconnected at their corners (or nodes) [4]. The displacement of these nodes is governed by simple approximation functions, as prescribed by the user.…”

Section: Pollack Periodica 13 2018mentioning

confidence: 99%

Application of polymer grids for reinforcement of asphalt pavement roads: Case study of corridor X in Macedonia

Gashi

Dimitrievski²,

Ilievski³

2018

Pollack Periodica

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Asphalt paved roads prematurely exhibit a cracking pattern similar to that in the old underlying pavement. The cracking in the new overlay surface is due to the inability of the overlay to withstand shear and tensile stresses created by movements concentrated around preexisting cracks in the underlying pavement. This movement may be due to traffic loading causing differential deflections at cracks in the underlying pavement layers, expansion or contraction of subgrade soils, expansion or contraction of the pavement itself due to changes in temperature, or combinations of these phenomena. Due to heavy deformation of asphalt paved surface, using European funds, the Government of Macedonia initiated rehabilitation of Corridor X close to the Tetovo section. For the reconstruction of this important section of the motorway, an experimental programme was conducted to determine the effects of geogrid reinforcement on mitigating reflection cracking in asphalt overlays. The objective of this study is to assess the inclusion of geogrid in the pavement cross-section and the accumulation of permanent deformation. The geogrid position, type of existing pavement, temperature, and joint/crack opening were analyzed in three site trial tests. Crack propagation under repeated loading was monitored as well. The results indicate a significant reduction in the rate of crack propagation in reinforced samples compared to unreinforced samples of old asphalt pavement. The presented pavement design procedure could be tailored to the specific needs of the project and implemented in various road rehabilitation projects.

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“…Researchers at the Department of Highway and Railway Engineering, Budapest University of Technology and Economics have been focusing on overlay design for several years. Fi and Szentpéteri developed a method based on the multilayer linear elastic theory, capable to assess the mechanical properties of the existing structure and the overlay as well [4], [5]. The method presented by the author and colleagues of the current paper uses a similar approach, but offers a simpler solution, which is based on the linear elastic multilayer theory, utilizing the Method of Equivalent Thicknesses (MET).…”

Section: Introductionmentioning

confidence: 99%

Consideration of temperature at the moduli of asphalt layers for a suggested mechanistic overlay design method

Soos

2017

Pollack Periodica

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The paper addresses the determination of a stiffness-temperature correction model for the use in a mechanistic overlay design method, developed at the Department of Highway and Railway Engineering, Budapest University of Technology and Economics. Eleven models are selected and evaluated based on 215 laboratory stiffness test results at various temperatures of 47 different AC22 binder course type mixes. As the results showed, for the rough temperature correction of Hungarian binder course mixes for the use in the proposed design method; the model used by the AASHTO 1993 pavement design method is most accurate based on the standard error of the estimate of the selected models.

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A Mechanistic-Empirical Approach for Asphalt Overlay Design of Asphalt Pavement Structures

Abstract: Abstract

Cited by 6 publications

References 8 publications

Soil Modification by the Application of Steel Slag

Soil Modification by the Application of Steel Slag

Application of polymer grids for reinforcement of asphalt pavement roads: Case study of corridor X in Macedonia

Consideration of temperature at the moduli of asphalt layers for a suggested mechanistic overlay design method

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