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Browsing by Subject "Flexible pavements"

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Characterisation of the elastic properties of existing pavements : state of the art

Author: Sanders, PJ ; De Beer, Morris ; du Plessis, HW Date: 26 May 2009 Various aspects of the determinations and use of elastic moduli of pavements materials are herein addressed. Included is an investigation into the sensitivity of pavement life to changes in elastic material parameters, an update of moduli ... Read more
The effects of non-linear material parameters on the shape of the deflection basin for flexible pavements: a parametric study

Author: De Beer, Morris Date: 1992 This paper summarises some of the main effects of non-linear, ie stress stiffening (in this case) behaviour of resilient elastic moduli of typical granular base pavement structures on the calculated deflection basin. The basin was characterized ... Read more
Influence of cross-anisotropy material behavior on back-calculation analysis of multi-layered systems

Author: Maina, JW ; Ozawa, Y ; Matsui, K Date: Jul 2008 Each layer in a pavement structure is compacted during construction. Moreover, since the compaction process is carried along the same direction, it is well known that horizontal and vertical mechanical properties in each layer differ. But ... Read more
Mechanistic design optimisation of thin asphalt surfacings using measured non-uniform tyre-road contact and incorporating rectangular contact shapes and layer cross-anisotropy

Author: De Beer, Morris ; Maina, J ; Van Rensburg, Yvette ; Fisher, Colin Date: May 2018 Mechanistic design and construction of flexible pavements with relatively thin (< 50 mm) asphalt road surfacings still remain an art today and are aimed especially towards first-class user experiences. Risks for surfacing failures are difficult ... Read more
Mechanistic modelling of weak interlayers in flexible and semi-flexible road pavements: Part 2

Author: De Beer, Morris ; Maina, JW ; Netterberg, F Date: Apr 2012 This paper (Part 2 of a two-part set of papers) discusses models and illustrates the adverse effects of weak layers, interlayers, laminations and/or weak interfaces in flexible and semi-flexible pavements, also incorporating lightly cemented ... Read more
Rehabilitation design of flexible pavements in South Africa.

Author: De Beer, Morris ; Van der Merwe, CJ ; Rohde, GT Date: 1997 This report contains a set of practical course notes on the Rehabilitation Design of flexible pavements in southern Africa based on extensive research by various researchers and / or practitioners in South Africa. The course is intended for ... Read more c b
Short course on: Rehabilitation design of flexible pavements in South Africa

Author: De Beer, Morris ; van der Merwe, CJ ; Rohde, GT Date: Sep 1997 This report contains a set of practical course notes on the Rehabilitation Design of flexible pavements in southern Africa based on extensive research by various researchers and / or practitioners in South Africa. The course is intended for ... Read more

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Browsing by Subject "Flexible pavements"

Browsing by Subject "Flexible pavements"

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