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Browsing by Author "Van Rensburg, Yvette"

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Crushing damage estimation for pavement with lightly cementitious bases

Author: De Beer, Morris ; Van Rensburg, Yvette ; Komba, Julius J Date: Jul 2014 Crushing (or compression) failure and associated surface deformation of lightly cementitious (stabilised) materials used for base/sub-base course layers in pavements has been well established in the South African pavement design practice since ... Read more
Load equivalency factors (LEFs) for abnormal vehicles (AVs) and mobile cranes in South Africa based on the mechanistic-empirical (M-E) design methodology

Author: De Beer, Morris ; Sallie, Ismail M ; Van Rensburg, Yvette ; Kemp, Mauritz J Date: Jul 2009 This paper describes the proposed new methodology for the determination of the Permit Mass Fees for Abnormal road Vehicles (AVs) based on the estimation of road damage. The existing South African mechanistic-empirical (M-E) pavement design ... 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
Modelling tyre-road contact stresses in pavement design and analysis

Author: Maina, JW ; De Beer, Morris ; Van Rensburg, Yvette Date: Jul 2013 Growing traffic volumes, increasing construction and maintenance costs continually drive for more innovative approaches and methodologies towards sustainable road infrastructure. At the current price levels of around R6000 per metric tonne, ... Read more
Pavement damaging effects from dual tyre configurations of heavy vehicles with tyre inflation pressure differentials

Author: De Beer, Morris ; Van Rensburg, Yvette Date: 16 Aug 2015 Recently, analyses on Stress-in-Motion (SIM) data of heavy vehicles (HVs) from National Road 3 (N3) indicated that there are un-equal loading on dual tyre configurations. It was shown that the mass of approximately 70 percent of the outside ... Read more
Pavement damaging effects from dual tyre configurations of heavy vehicles with tyre inflation pressure differentials

Author: De Beer, Morris ; Van Rensburg, Yvette Date: Aug 2015 Recently, analyses on Stress-in-Motion (SIM) data of heavy vehicles (HVs) from National Road 3 (N3) indicated that there are un-equal loading on dual tyre configurations. It was shown that the mass of approximately 70 percent of the outside ... Read more
Revision of TRH 11 (1999-2000). Recovery of road damage – discussion document on a provisional basis for possible new estimation of mass fees – under review for TRH 11 (2000) – final summary report V1.0

Author: De Beer, Morris ; Sallie, Ismail M ; Van Rensburg, Yvette Date: Aug 2009 This summary report describes the proposed new methodology for the determination of the Permit Mass Fees for Abnormal road Vehicles (AVs) based on the estimation of road damage. The South African mechanistic-empirical pavement design methodology ... Read more
Toward using tire-road contact stresses in pavement design and analysis

Author: De Beer, Morris ; Maina, JW ; Van Rensburg, Yvette ; Greben, JM Date: Oct 2012 Optimization of road pavement design, especially towards the surface of the pavement, requires a more rational approach to modeling of truck tire-road contact stresses. Various road surfacing failures are given in this paper as examples, and ... Read more
Towards using tire-road contact stresses in pavement design and analysis

Author: De Beer, Morris ; Maina, JW ; Van Rensburg, Yvette ; Greben, JM Date: Sep 2011 Optimization of road pavement design, especially towards the surface of the pavement, requires a more rational approach to modeling of truck tire-road contact stresses. Various road surfacing failures are given in this paper as examples, and ... Read more

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Browsing by Author "Van Rensburg, Yvette"

Browsing by Author "Van Rensburg, Yvette"

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