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Browsing by UP Author "Maina, J.W. (James)"
Now showing items 1-20 of 26
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Maina, J.W. (James); Komba, Julius Joseph; Anochie-Boateng, Joseph K.; O'Connell, J.; Southern African Transport Conference (31st : 2012 : Pretoria, South Africa); Minister of Transport, South Africa (Document Transformation Technologies, July 2012)Paper presented at the 31st Annual Southern African Transport Conference 9-12 July 2012 "Getting Southern Africa to Work", CSIR International Convention Centre, Pretoria, South Africa.
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Komba, Julius Joseph; Mataka, Mussa; Malisa, John T.; Walubita, Lubinda F.; Maina, J.W. (James) (ASTM International, 2019-01)Traffic loading is one of key inputs for new and rehabilitation designs of pavement. Heavy vehicles cause the most structural damage to pavements; hence, as part of the pavement design process, heavy vehicle volume, and ...
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Steyn, Wynand Jacobus Van der Merwe; Maina, J.W. (James); Repsold, Anton (Chinese Society of Pavement Engineering, 2013-07)In most existing pavement design methods, pavements are analyzed using linear elastic multilayer theory, with the assumption that isotropic conditions are present in the structural layers of the pavement section. There are ...
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Horak, Emile; Komba, Julius Joseph; Maina, J.W. (James); Sebaaly, Haissam; Muller, Joanne (Elsevier, 2022-04)Contiguous aggregates are aggregate sizes that consecutively follow a typical aggregate grading curve. Porosity calculation is possible for a binary or longer ranges of contiguous aggregates. Porosity is a fundamental ...
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Maina, J.W. (James); Horak, Emile; Guiamba, D.; Hartman, A. (SATC, 2008-07)Paper presented at the 27th Annual Southern African Transport Conference 7 - 11 July 2008 "Partnership for research and progress in transportation", CSIR International Convention Centre, Pretoria, South Africa.
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Blaauw, Sheldon Alfred; Maina, J.W. (James); Grobler, Louis J.; Visser, Alex T. (Elsevier, 2022-04)Pavement sustainability is measured using various methodologies which often focus on only certain aspects of sustainability. Methods to quantify and unify holistic sustainability in terms of economic, environmental and ...
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Maina, J.W. (James); O'Connell, J.; Mturi, G.A.J.; Southern African Transport Conference (30th : 2011 : Pretoria, South Africa); Transportation Research Board of the National Academies (TRB); Minister of Transport, South Africa (Document Transformation Technologies, 2011-07)Paper presented at the 30th Annual Southern African Transport Conference 11-14 July 2011 "Africa on the Move", CSIR International Convention Centre, Pretoria, South Africa.
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O'Connell, Johan; Steyn, Wynand Jacobus Van der Merwe; Maina, J.W. (James) (Elsevier, 2024-12)Ageing has a profound effect on pavement performance, especially regarding cracking. Due to budgetary constraints, South Africa has pioneered the use of thin asphalt concrete layers. The research described in this paper ...
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Blaauw, S.A. (Sheldon); Maina, J.W. (James); O'Connell, Johan (Elsevier, 2022-11)Please read abstract in the article.
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Blaauw, Sheldon Alfred; Maina, J.W. (James); Mturi, Georges A.J.; Visser, Alex T. (Elsevier, 2022-04)Construction, maintenance and demolition of pavements are often considered the only activities impacting the environment. This paper shows that user emissions, influenced by factors such as road roughness and climate change, ...
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Steyn, Wynand Jacobus Van der Merwe; Maina, J.W. (James) (Elsevier, 2019-06)There is much research conducted on the vehicle technologies required for operation of autonomous vehicles (AV) on public roads, as well as analysis of the interaction between AV and the road environment. However, limited ...
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Busang, Selinah; Maina, J.W. (James) (Elsevier, 2022-02)Please read abstract in the article.
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Maina, J.W. (James); Denneman, Erik; De Beer, M. (SATC, 2008-07)Paper presented at the 27th Annual Southern African Transport Conference 7 - 11 July 2008 "Partnership for research and progress in transportation", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT:Pavement ...
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Busang, Selinah; Maina, J.W. (James) (Elsevier, 2021-12)Conventional asphalt mixture performs well in most asphalt pavement applications. However, blistering, which is a common phenomenon in semi-arid areas, is one distress mechanism caused by various detrimental salts resulting ...
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Blaauw, Sheldon Alfred; Maina, J.W. (James) (Elsevier, 2021-03)For many years, South African road authorities have taken measures to reduce costs of road construction, vehicle operating costs as well as road fatalities while enhancing road performance to improve the sustainability of ...
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Blaauw, Sheldon Alfred; Maina, J.W. (James); Grobler, Louis J. (Elsevier, 2020-12)Road pavements are constructed of bulk raw materials such as aggregate, cement, bitumen and water. The environmental, social, and economic impacts of the materials and processes should be quantified and monitored towards ...
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Maina, J.W. (James); De Beer, M.; Van Rensburg, Y.; Southern African Transport Conference (32nd : 2013 : Pretoria, South Africa); Minister of Transport, South Africa; Behrens, Roger.; Cameron, Bill.; Froschauer, Pauline. (July 2013)Paper presented at the 32nd Annual Southern African Transport Conference 8-11 July 2013 "Transport and Sustainable Infrastructure", CSIR International Convention Centre, Pretoria, South Africa.
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Horak, Emile; Maina, J.W. (James); Myburgh, P.; Sebaaly, Haissam (South African Institution of Civil Engineering, 2019-09)Asphalt mix designs tend to optimise the load transfer via aggregate skeletons as main mechanism to provide rut resistance, often to the detriment of durability. Permeability, as a significant durability indicator, is ...
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Maina, J.W. (James); Kawana, F.; Matsui, K. (South African Institution of Civil Engineering, 2017-03)In order to better understand the impact of increased loading on roads, studies on tyre-road interaction have gained prominence in recent years. Tyres form an essential interface between vehicles and road pavement surfaces. ...
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Maina, J.W. (James); Kawana, Futoshi; Matsui, Kunihito (South African Institution of Civil Engineering, 2017-03)Accurate numerical modelling of the behaviour of road pavement layers is an important requirement for the design and evaluation of road pavements. This modelling includes the prediction of pavement performance under the ...
Now showing items 1-20 of 26