Author:VdM Steyn, WJ; Anochie-Boateng, Joseph; Fisher, C; Jones, D; Truter, LDate:Sep 2012Accelerated Pavement Testing (APT) has always been conducted with the objective of improving the understanding of real pavements under real traffic and environmental conditions. While APT provides an accelerated view of some of the major ...Read more
Author:Nokes, WA; Harvey, JT; Du Plessis, L; Long, F; Stolarski, PJDate:Aug 1997By combining the results of both the HVS and laboratory tests, interpretations of pavement performance are described and recommendations for pavement design and construction have been made to Caltrans.Read more
Author:Jooste, FJ; Kekwick, SV; Sadzik, ES; Rohde, GTDate:Aug 1997The aim of this study was to investigate the following:how accelerated pavement testing predictions compare with actual road behaviour and performance the relative influences of load and environmental factors on pavement deterioration and how ...Read more
Author:Paige-Green, P; Jones, DJDate:Mar 2004The data required for a road materials database was identified and a basic structure formulated during 2003. A set of Excel workbooks and associated worksheets was developed as a foundation for the database and as an interim means of gathering ...Read more
Author:Jones, DJ; Paige-Green, PDate:Mar 2003The data required for a road materials database has been identified and a basic structure formulated. A set of Excel workbooks and associated worksheets has been developed as a foundation for the database and as an interim means of gathering ...Read more
Author:Kohler, E; Harvey, JT; Du Plessis, L; Theyse, HLDate:Oct 2008Precast 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
Author:De Beer, MorrisDate:Nov 2001Describes in summary the attendance of the author at an invited meeting of the COST 347 ALT (Accelerated Loading Testing) Committee in Cologne, Germany, Europe. The meeting was held at Bast, near Cologne, from 27th June 2001 to 29th June 2001. ...Read more
Author:Morton, B; Theyse, HLDate:Mar 2003After 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
Author:Jones, DJ; Morton, BDate:Sep 2002Heavy Vehicle Simulator (HVS) operations have been performed by the CSIR for the past 25 years. During this period, experience has been gained with regards to the collection and storage of pavement behaviour data from accelerated pavement ...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:Paige-Green, PDate:Mar 2004This document describes the implementation of the Gautrans LTPP protocol. Three LTPP sections at existing HVS test sites have been located and market out in accordance with the LTPP protocol developed for Gautrans. Much of the initial ...Read more
Author:Matsui, K; Hachiya, Y; Maina, JW; Kikuta, Y; Nagae, TDate:2006The determination of pavement layer moduli from falling weight deflec-tometer test data is known as backcalculation analysis. Generally, back-calculation analysis is unstable—greatly influenced by several causes of error. They may be categorized ...Read more
Author:Jones, DJ; Paige-Green, PDate:Mar 2004This document describes a protocol for establishment and operation of long-term pavement performance (LTPP) sections, including those linked to HVS tests. This is detailed under the following headings: Linking LTPP to HVS data collection; ...Read more
Author:Jones, DJ; Paige-Green, PDate:Mar 2003This document describes a protocol for establishment and operation of long-term pavement performance (LTPP) sections, including those linked to HVS tests. This detailed under the following headings:
Linking LTPP to HVS data collection, ...Read more
Author:Jones, DJ; Paige-Green, PDate:Feb 2003This inception report assesses local and international experience on the development of a protocol for the establishment and operation of Long Term Pavement performance (LTPP) sections in conjunction with Accelerated Pavement Testing (APT). ...Read more
Author:Du Plessis, L; Strauss, PJ; Kilian, ADate:Aug 2009The CSIR Built-Environment, in conjunction with the University of Pretoria and the Cement and Concrete Institute of South Africa, developed a low cost option for the upgrading of unsurfaced (gravel) roads. The proposed solution is the placing ...Read more
Author:Steyn, WJvdM; De Beer, Morris; Du Preez, WDate:Jul 1999The HVS IV+, its history, specifications and capabilities are introduced in this paper, and compared to that of the HVS Mark III. The development of some HVS instrumentation are discussed. Definitions are proposed for a description of the ...Read more
Author:Steyn, WJvdM; Du Plessis, L; Denneman, EDate:Jan 2006The GDPTW makes extensive use of instrumentation in their Accelerated Pavement Testing (APT) and Long Term Pavement Performance (LTPP) programmes. In order to remain at the forefront of technology, this project investigates the available ...Read more
Author:Steyn, WJvdM; De Beer, Morris; Visser, ATDate:Aug 1997The aim of this work was to quantify the structural behaviour of rehabilitated pavements and to optimise the life-cycle cost for the road agency.Read more
Author:De Beer, Morris; Fisher, ColinDate:Sep 2016An important element of Accelerated Pavement Testing (APT) is the selection of appropriate test tyre(s) to be used for APT testing. By far the majority of full scale (or scaled) APT devices uses pneumatic rubber tyres. Tyres differ not only ...Read more