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Browsing by Author "Theyse, HL"

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Evaluation of precast concrete slabs using a heavy vehicle simulator

Author: Kohler, E ; Harvey, JT ; Du Plessis, L ; Theyse, HL Date: Oct 2008 Precast slabs are considered an attractive pavement option for rehabilitation or reconstruction cases where traffic closures of less than eight hours are required. Benefits include long life expectancy of concrete cast in factory-controlled ... Read more
First level analysis report: comparative testing of HVS Mk IV+ and HVS Mk III on road D2388 near Cullinan

Author: Morton, B ; Theyse, HL Date: Mar 2003 After many years of owning and operating a Heavy Vehicle Simulator (HVS) Mk III, Gautrans acquired a HVS Mk IV+ in May 2002. In addition to the advanced features that this machine possesses in comparison to its predecessor, the HVS Mk IV+ ... Read more
Heavy vehicle simulator and laboratory testing of a light pavement structure for low-volume roads

Author: Theyse, HL ; Steyn, WJVDM ; Sadzik, E ; Henderson, M Date: Jun 2006 Developing countries such as South Africa have an urgent need to create road infrastructure for rural access and urban mobility. Many of these roads will operate under low traffic volumes and only require a sealed, light pavement structure. ... Read more
Interim revision of the South African Mechanistic-Empirical pavement design method for flexible pavements

Author: Theyse, HL ; De Beer, Morris ; Maina, JW ; Kannemeyer, L Date: Sep 2011 Pavement design methods, in combination with network level management systems must enable road authorities to develop reliable long-term financial plans based on the estimated structural capacity of the road network. Inaccurate design models ... Read more
Mechanistic-empirical subgrade design model based on heavy vehicle simulator test results

Author: Theyse, HL ; Hoover, TP ; Harvey, JT ; Monismith, CL ; Coetzee, NF Date: Jun 2006 Although Accelerated Pavement Testing (APT) is often done with specific objectives, valuable pavement performance data is generated over the long-term that may be used to investigate pavement behaviour in general and calibrate mechanistic-empirical ... Read more
Overview of the South African mechanistic pavement design analysis method

Author: Theyse, HL ; De Beer, Morris ; Rust, FC Date: 1996 A historical overview of the South African mechanistic pavement design method, from its development in the early 1970s to the present, is presented. Material characterization, structural analysis, and pavement life prediction are discussed, ... Read more
Permanent deformation and in-depth deflection records for selected HVS tests

Author: Theyse, HL Date: Mar 1999 Transportek has been involved in accelerated pavement testing (APT) with a fleet of Heavy Vehicle Simulators (HVSs) over the past two decades. During this period, a vast amount of pavement response and performance data has been accumulated, ... Read more
Precision and accuracy of mechanistic-empirical pavement design

Author: Theyse, HL Date: Sep 2006 The availability of mechanistic-empirical pavement design methods is increasing internationally. Although mechanistic-empirical design does offer some insight into pavement behaviour and performance, at least more so than empirical design ... Read more
Revision of South African pavement design method

Author: Kannemeyer, L ; Theyse, HL ; Verhaeghe, Benoit MJA ; Van As, SC Date: Aug 2015 South Africa has a long pavement engineering history in terms of developing methodologies and solutions for supporting the local economy using available materials under specific environmental and socio-economic conditions. Over the past 10 ... Read more
Revision of the South African flexible pavement design method; mechanistic-empirical components

Author: Theyse, HL ; Maina, JW ; Kannemeyer, L Date: Sep 2007 The current version of the South African Mechanistic –Empirical Design Method for flexible pavements is based on technology and models developed during the 1970’s and 1980’s. Given the current level of concern regarding the validity of the ... Read more
Subgrade design models

Author: Theyse, HL Date: Feb 2002 Masters Degree Thesis: HL Theyse - The development of mechanistic-empirical permanent subgrade deformation models from heavy vehicle simulator data. The work was aimed at improving the accuracy of one of the components of a flexible pavement ... Read more
Suction pressure, yield strength and effective stress of partially saturated unbound granular pavement layers

Author: Theyse, HL Date: Sep 2006 The predominant mode of distress for unbound pavement layers is the permanent deformation of the layer either through gradual deformation or rapid shear failure of the layer. Several researchers have related both these forms of permanent ... Read more

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Browsing by Author "Theyse, HL"

Browsing by Author "Theyse, HL"

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All of ResearchSpace

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