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Browsing by Subject "Road construction"

Now showing items 1-13 of 13

Addressing the technical capacity constraints on community-based labour intensive road projects - a case study of the Amadiba road project

Author: Lachman, A ; Thevadasan, S Date: Sep 2006 Amadiba Road is a 44km-long gravel road, which runs from the R61 between Port Edward and Bizana, down to the sea. It was a community-based, labour-intensive project managed by CSIR Built Environment, with funding from the national Poverty ... 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
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
Experience in statistical quality control for road construction in South Africa

Author: Mitchell, MF ; Semmelink, CJ ; McQueen, AL Date: Jun 1977 For some time road engineers have been concerned that the variability inherent in road construction materials and their sampling and testing has not been logically and consistently catered for in the road construction process or in construction ... Read more
Force ductility: a 5 year feedback of performance results

Author: Mturi, George AJ ; Nkgapele, M Date: Jul 2013 The development of improved test protocols and procedures for modified bituminous binder materials is currently been pursued by the Council for Scientific and Industrial Research (CSIR). The determination of the cohesive strength of modified ... Read more
Heavy Vehicle Simulator aided evaluation of overlays on pavements with active cracks

Author: Viljoen, AW ; Freeme, CR ; Servas, VP ; Rust, FC Date: Jul 1987 Conventional overlay life estimates are often invalidated by the reflection of existing cracks in a pavement through an overlay. This is attributable to a lack of understanding of the factors influencing relative crack movements and their ... Read more
An investigation of aggregate degradation in a high stress field

Author: Mgangira, Martin B ; Xungu, Sipho A ; Giani, John C Date: Jul 2018 The deterioration of the aggregate material used in road construction is of concern as it affects the overall long term stability of the road pavement and should be minimised by using durable aggregates. The paper presents proof of concept ... Read more
Mechanistic modelling of weak interlayers in flexible and semi-flexible road pavements: Part 2

Author: De Beer, Morris ; Maina, JW ; Netterberg, F Date: Apr 2012 This paper (Part 2 of a two-part set of papers) discusses models and illustrates the adverse effects of weak layers, interlayers, laminations and/or weak interfaces in flexible and semi-flexible pavements, also incorporating lightly cemented ... 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
Provisional results from accelerated testing of ultra thin-layer reinforced concrete in South Africa

Author: Du Plessis, L ; Strauss, PJ ; Kilian, A Date: Aug 2009 The 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
Sustainable use of oil sands for geotechnical construction and road building

Author: Anochie-Boateng, Joseph Date: Feb 2011 This symposium provides a forum for exchange of ideas on current research nationally and internationally on the use of industrial byproducts and other recycled materials in geotechnical construction. A key objective is to identify new ... Read more
Use of natural resources for sustainable roads

Author: Paige-Green, P Date: Jan 2009 This chapter reviews the relevant sustainability background and identifies areas that should be considered in relation to conserving non-renewable natural resources. Techniques that can contribute to reducing the use of non-renewable resources ... Read more
Wearing courses for unpaved roads in southern Africa: a review

Author: Netterberg, F ; Paige-Green, Phil Date: Jul 1988 The requirements of and some specifications for wearing courses for unpaved roads are reviewed. It is concluded that further development of specifications is required, and that there is probably great scope for improvement of our unpaved roads ... Read more

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Browsing by Subject "Road construction"

Browsing by Subject "Road construction"

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