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Browsing by Author "Anochie-Boateng, Joseph"

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Advanced and automated laser-based technique to evaluate aggregates

Author: Anochie-Boateng, Joseph ; Komba, Julius J ; Mvelase, Gculisile M Date: Nov 2011 The Council for Scientific and Industrial Research (CSIR) is undertaking a research project to investigate the use of laser-based scanning technology to quantify the morphological/shape properties (i.e., form - flatness, elongation and ... Read more
Advanced testing and characterization of shear modulus and deformation characteristics of oil sand materials

Author: Anochie-Boateng, Joseph ; Tutumluer, E Date: Sep 2014 Oil sands are natural deposits of sand materials that are rich in bitumen. Limited studies have been conducted to determine the dynamic behavior of oil sand materials. Recent difficulties encountered in oil sand mine fields in Canada substantiated ... Read more
Advanced testing and characterization of transportation soils and bituminous sands

Author: Anochie-Boateng, Joseph Date: Dec 2007 This research study was intended to develop laboratory test procedures for advance testing and characterization of fine-grained cohesive soils and oil sand materials. The test procedures are based on typical field loading conditions and the ... Read more
Aggregate surface areas quantified through laser measurements for South African asphalt mixtures

Author: Anochie-Boateng, Joseph ; Komba, Julius J ; Tutumluer, E Date: Feb 2012 For several decades, efforts have been made by engineers and researchers in the road and airfield pavements, and railroads to develop methods/procedures for accurate quantification of aggregate shape and packing properties. The difficult part ... Read more
Analytical and laser scanning techniques to determine shape properties of mineral aggregates

Author: Komba, Julius J ; Anochie-Boateng, Joseph ; Steyn, WJvdM Date: Jan 2013 The fundamental shape attributes of aggregates used in pavements i.e., form, angularity, and surface texture have not been accurately quantified historically, because of their irregular and non-ideal shapes. This paper presents selected results ... Read more
Analytical modelling of visco-elastic behaviour of hot-mix asphalt

Author: Komba, Julius J ; Maina, JW ; Anochie-Boateng, Joseph ; O'Connell, Johannes S Date: Jul 2012 As part of the revision of the South African Pavement Design Method (SAPDM), laboratory testing was conducted to obtain the dynamic (Complex) modulus |E*| of hot-mix asphalt (HMA) samples. Dynamic modulus gives an indication of linear ... Read more
Assessment on the sustainable use of alternative construction materials as a substitute to natural aggregates

Author: George, Theresa B ; Anochie-Boateng, Joseph Date: Aug 2016 South Africa is facing a potential shortage of virgin aggregates used to produce asphalt mixes for road construction. Although these aggregates have demonstrated the desired quality in asphalt mixes and have adhered to project specifications ... Read more
The best of shape: 3-D scanning in South Africa gives aggregate a closer look

Author: Anochie-Boateng, Joseph Date: Sep 2011 The author of this article is conducting research in South Africa which addresses the difficulties in pavement design in developing methods and procedures for accurate quantification of aggregate shape and surface properties, which are well ... Read more
Bitumen rubber asphalt mix testing for South African pavement design method

Author: Anochie-Boateng, Joseph ; Denneman, E ; Verhaeghe, Benoit MJA Date: Jul 2011 The South Africa National Road Agency Ltd has entered into a research and laboratory testing agreement with the CSIR to support the revision of the South African Pavement Design Method (SAPDM). The research includes characterising a bitumen-rubber ... Read more
Calibration of full-scale accelerated pavement testing data using long-term pavement performance data

Author: VdM Steyn, WJ ; Anochie-Boateng, Joseph ; Fisher, C ; Jones, D ; Truter, L Date: Sep 2012 Accelerated 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
Case study: dynamic modulus characterization of naturally occurring bituminous sands for sustainable pavement applications

Author: Anochie-Boateng, Joseph ; Tutumluer, E ; Carpenter, SH Date: Nov 2010 Oil sand is a generic name given to naturally occurring deposits of bituminous sand materials that are mined for crude oil production. These materials are currently used as subgrade materials of temporary and permanent roads in oil sand fields. ... Read more
Characterizing bulk modulus of fine-grained subgrade soils under large capacity construction equipment

Author: Anochie-Boateng, Joseph Date: Jul 2011 This paper focuses on characterizing the volumetric stiffness behavior of fine-grained subgrade soil at three different moisture states using a newly proposed hydrostatic compression test procedure. The deformation properties obtained from a ... Read more
Characterizing resilient behavior of naturally occurring bituminous sands for road construction

Author: Anochie-Boateng, Joseph ; Tutumluer, E Date: Nov 2010 Oil sand is a generic name given to natural deposits of bituminous sand materials that are mined for crude oil production. These materials are currently used as subgrade materials of temporary and permanent roads in oil sand fields for operating ... Read more
Characterizing shear properties of fine-grained subgrade soils under large capacity construction equipment

Author: Anochie-Boateng, Joseph ; Tutumluer, E Date: Jun 2010 The routine operations of large capacity off-road construction equipment on fine-grained cohesive soils have become a concern to the construction and equipment manufacturing sectors due to problems with mobility on these soils. In this study, ... Read more
Characterizing volumetric deformation behavior of naturally occuring bituminous sand materials

Author: Anochie-Boateng, Joseph ; Tutumluer, E Date: May 2009 Oil sand materials are natural bituminous sand deposits that are rich in bitumen or asphalt content to the extent that oil can be extracted from these deposits. The presence of high viscous bitumen content in the oil sand composition makes ... Read more
Comparison of new peak hour trip generation rates with existing rates in the South African trip data manual

Author: Mogakabe, L ; Anochie-Boateng, Joseph ; Ochieng, G Date: Jul 2018 Peak hour trip generation rates are important for the calculation of the number of trips generated by a development during a peak hour. In South Africa, trip generation rates are obtained from the trip data manual documented in the Technical ... Read more
Construction of a high modulus asphalt (HiMA) trial section Ethekwini: South Africa's first practical experience with design, manufacturing and paving of HiMA

Author: Nkgapele, M ; Denneman, E ; Anochie-Boateng, Joseph Date: Jul 2012 A trial section was paved with the recently introduced High Modulus Asphalt (HiMA) technology on South Coast road in eThekwini (Durban). The trial section forms part of an effort to transfer HiMA technology to South Africa, in an initiative ... Read more
Determination of aggregate morphological properties using laser and their effects on rutting of asphalt mixes

Author: Anochie-Boateng, Joseph ; Maina, JW Date: Nov 2013 A new and innovative three-dimensional (3-D) laser based technique was employed to accurately determine the morphological (shape) properties of aggregates used in asphalt mixes. The objective of this paper is to investigate the influence of ... Read more
Effect of round particles on shear strength properties of railway ballast

Author: Mvelase, Gculisile M ; Anochie-Boateng, Joseph ; Msibi, LL Date: Jul 2016 The railway industry in South Africa is facing a problem where passage of trains on the heavy coal haul lines are causing degradation by means of wear (roundness) of ballast materials, and consequently, leading to differential track settlement ... Read more
Effect of sample geometry on bulk relative density of hot-mix asphalt mixes

Author: Anochie-Boateng, Joseph ; Komba, Julius J ; Ventura, D ; Verhaeghe, Benoit MJA Date: Sep 2011 This study emanated from the revision of South African mechanistic-empirical pavement design method. At the CSIR road pavement laboratory, the bulk relative density (BRD) of compacted hot-mix asphalt (HMA) mixes is determined on cores and ... Read more

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