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Browsing by Author "O’Connell, J"

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  • Komba, Julius J; Maina, JW; Anochie-Boateng, Joseph; O'Connell, Johannes S (SATC, 2012-07)
    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 ...
  • O'Connell, Johannes S; Komba, Julius J; Louw, JG (2014-07)
    The binder is an important constituent of an asphalt mix and it affects the overall performance of the mix, especially with regards to permanent deformation and fatigue cracking. The stiffest binder available from the ...
  • Komba, Julius J; O'Connell, Johannes S; Paige-Green, P (2014-07)
    The overall performance of an asphalt mix is dependent on, amongst others, the properties of the constituent materials, which include aggregate, binder and filler. The aggregate for production of asphalt mixes is usually ...
  • Mturi, GAJ; Zoorob, SE; O'Connell, Johannes S; Anochie-Boateng, Joseph; Maina, J (2011-08)
    The development of improved test protocols and procedures for asphalt materials is currently been pursued by the Council for Scientific and Industrial Research (CSIR) to support the revision of the existing South Africa ...
  • Mturi, GAJ; O'Connell, Johannes S; Zoorob, SE; De Beer, Morris (Taylor & Francis, 2014-05)
    In South Africa, an empirical characterisation of crumb rubber modified (CRM) bituminous binders has historically been the only means of predicting their performance in pavement layers, short of constructing pavement test ...