Browsing by Author "O'Connell, J."

Browsing by Author "O'Connell, J."

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  • Analytical modelling of visco-elastic behaviour of hot-mix asphalt 
    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.
  • Comparative evaluation of an experimental binder in hot-mix asphalt : correlating the predicted performance of the binder with asphalt testing 
    O'Connell, J.; Komba, Julius Joseph; Louw, J.G.; Southern African Transport Conference (33rd : 2014 : Pretoria, South Africa); Minister of Transport, South Africa (2014)
    Paper presented at the 33rd Annual Southern African Transport Conference 7-10 July 2014 "Leading Transport into the Future", CSIR International Convention Centre, Pretoria, South Africa.
  • Determination of uncertainty of measurement for penetration testing 
    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.
  • The effect of trafficking on the rheological properties of binder recovered from a one year old road 
    O'Connell, J.; Mturi, G.; Komba, Julius Joseph (Southern African Transport Conference, 2016)
    Asphalt cores were sampled from four sites along a major route in Tanzania, where asphalt surfacing was constructed approximately one year ago. The bituminous binder was recovered from cores taken from the wheel path as ...
  • The evaluation of asphalt mix surface rejuvenators in South Africa 
    O'Connell, J.; Rampersad, A.; Lavelle, R. (Southern African Transport Conference, 2017)
    Ageing of a seal or asphalt surfacing increases the stiffness of the layer, resulting in a decreased ability to resist cracking. Asphalt surface rejuvenators have been used traditionally as an economical maintenance technique ...
  • Evaluation of bitumen-rubber asphalt manufactured from modified binder at lower viscosity 
    O'Connell, J.; Anochie-Boateng, Joseph K.; Marais, Herman I.J.; Southern African Transport Conference (29th : 2010 : Pretoria, South Africa); Transportation Research Board of the National Academies (TRB) (Document Transformation Technologies, 2010-08)
    Paper presented at the 29th Annual Southern African Transport Conference 16 - 19 August 2010 "Walk Together", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT:
  • Evaluation of the performance of aggregate in hot-mix asphalt 
    Komba, Julius Joseph; O'Connell, J.; Paige-Green, Philip; Southern African Transport Conference (33rd : 2014 : Pretoria, South Africa); Minister of Transport, South Africa (2014)
    Paper presented at the 33rd Annual Southern African Transport Conference 7-10 July 2014 "Leading Transport into the Future", CSIR International Convention Centre, Pretoria, South Africa.
  • Hot-mix asphalt testing for the South African pavement design method 
    Anochie-Boateng, Joseph K.; O'Connell, E.; O'Connell, J.; Mturi, G.A.J.; Ventura, D.; Southern African Transport Conference (29th : 2010 : Pretoria, South Africa); Transportation Research Board of the National Academies (TRB) (Document Transformation Technologies, 2010-08)
    Paper presented at the 29th Annual Southern African Transport Conference 16 - 19 August 2010 "Walk Together", CSIR International Convention Centre, Pretoria, South Africa.
  • Investigating the Rheological characteristics of South African road bitumens 
    Mturi, G.A.J.; O'Connell, J.; Zoorob, SE.; Southern African Transport Conference (29th : 2010 : Pretoria, South Africa); Transportation Research Board of the National Academies (TRB) (Document Transformation Technologies, 2010-08)
    Paper presented at the 29th Annual Southern African Transport Conference 16 - 19 August 2010 "Walk Together", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT:
  • Monitoring ageing of bituminous binders 
    Mturi, G.A.J.; 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.
  • An overview of the ageing of bituminous binders 
    O'Connell, J.; Steyn, Wynand Jacobus Van der Merwe (Southern African Transport Conference, 2017)
    The stiffness of an asphalt layer is an important characteristic affecting the performance of the layer. This stiffness is affected by temperature and time, as the bituminous component of the asphalt layer ages. As the ...
  • Rheological analysis of crumb rubber modified binder 
    Mturi, G.A.J.; O'Connell, 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.
  • Role of high-level project professionals' perceptions on quality processes in directing the investigation of causes of premature pavement distresses : an exploratory study 
    Mgangira, M.; Das, S.; O'Connell, J. (Southern African Transport Conference, 2016)
    Following the observation of physical form of distress that leads to premature failure, investigations are usually initiated in order to identify causes or factors of the observed early pavement distress, which is often ...