Author:Du Plessis, Louw; Ulloa-Calderon, A; Harvey, JT; Coetzee, NFDate:Oct 2017This paper provides a brief description of the technological developments involved in the development and use of the Heavy Vehicle Simulator (HVS) accelerated pavement testing equipment. This covers the period from concept in the late 1960’s, ...Read more
Author:Paige-Green, PDate:Sep 2004This paper discusses an investigation using the CSIR Transportek Heavy Vehicle Simulator (HVS) to determine the impact of using aggregates softer than specified in chip seals and to propose possible relaxations in the currently specified ...Read more
Author:De Beer, Morris; Kleyn, EG; Wolff, H; Otte, JRDate:1991This paper summarises the full scale accelerated research done during the past six years with the Heavy Vehicle Simulator (HVS) belonging to the Roads Branch of the Transvaal Provincial Administration (TPA). The research concentrated on the ...Read more
Author:Louw, MR; Rust, FC; Bergh, AO; McKay, AHDate:2011There is a significant need in South Africa for the upgrading of suburban streets with a solution that performs well, is cost-effective and requires minimal maintenance. In addition, there is also a need for job creation in road construction, ...Read more
Author:De Beer, Morris; Horak, EDate:1987Most of the structural failures in road pavements are in one way or another associated with excess water trapped within the pavement structure owing to poor drainage. The combined effect of traffic loading and trapped water within the pavement ...Read more
Author:Rust, FC; Akhalwaya, Imraan; Jordaan, GJ; Du Plessis, LDate:Oct 2019This paper describes the findings of a Heavy Vehicle Simulator (HVS) test on road D1884 in the Gauteng province of South Africa. The pavement structure was rehabilitated using an anionic nano-silane modified bitumen emulsion stabilising agent ...Read more
Author:Rust, FC; Harvey, JT; Verhaeghe, Benoit MJA; Noakes, W; Van Kirk, JDate:Oct 1994The Californian Department of Transportation commissioned a pilot project to evaluate the potential of the Heavy Vehicle Simulator (HVS) for conduction pavement studies. The effect of channelisation of traffic on the rutting behaviour of a ...Read more
Author:Rust, FC; Du Plessis, L; Verhaeghe, Benoit MJA; Grobler, JEDate:Oct 1993Internationally, interest in accelerated pavement testing (APT) is increasing, in particular testing with mobile machines which allow the performance of in-service roads to be assessed. The Californian Department of Transportation (CALTRANS) ...Read more
Author:Akhalwaya, Imraan; Rust, Frederik CDate:Jul 2018Nano-modified emulsions (NMEs) have recently been used successfully across a number of trial projects in South Africa. Following the development of initial draft design approaches for NME stabilising agents, the Council for Scientific and ...Read more
Author:Wolff, H; Visser, AT; De Beer, MorrisDate:1993A brief review of the theory of material behavour is given as background to a discussion on the behaviour of granular materials as determined, from accurate measurments of elastic and plastic strains under fullscale Heavy Vehicle Simulator ...Read more
Author:De Beer, Morris; Maina, JWDate:Jul 2008This paper is a brief introduction to some of the well known fundamental engineering properties of homogeneous isotropic linear elastic materials. It specifically shows the relationships between different elastic moduli. It covers some of the ...Read more
Author:Mkhize, ZQP; De Beer, MorrisDate:Jul 2005This study introduces a new scale for weighing individual tyres of slow moving vehicles. The new technology is referred to as “Stress - In – Motion” or SIM and is statistically compared with an existing Weigh-In-Motion (WIM) scale (DAW 50) ...Read more
Author:De Beer, Morris; Fisher, C; Sadzik, EMDate:Jul 2008Multi-dimensional forces (and stresses) inside the contact patch of a freerolling pneumatic rubber tyre generally occur as a direct result of a complex interaction between flexible rubber and a rigid test surface or road surface. These forces, ...Read more
Author:De Beer, Morris; Sadzik, EM; Fisher, C; Coetzee, CHDate:Jul 2005This paper addresses the measurement (i.e. “fingerprinting”) of tyre loading and contact stress patterns associated with slow moving test tyres on the new Heavy Vehicle Simulator (HVS Mk IV+) of Gautrans. The two test tyres used on the HVS ...Read more