Komba, Julius JMaina, JWAnochie-Boateng, JosephO'Connell, Johannes S2012-08-062012-08-062012-07Komba, J, Maina, JW, Anochie-Boateng, JK and O’Connell, J. Analytical modelling of visco-elastic behaviour of hot-mix asphalt. 31st Southern African Transport Conference (SATC 2012), CSIR International Convention Centre, Pretoria, South Africa, 9-12 July 2012http://www.satc.org.za/index.php?page=1000351http://hdl.handle.net/10204/603731st Southern African Transport Conference (SATC 2012), CSIR International Convention Centre, Pretoria, South Africa, 9-12 July 2012As 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 visco-elastic (LVE) behaviour of HMA materials at different temperatures and loading frequencies; and is required for computation of stresses, strains and displacements in flexible pavement analysis and design. Laboratory tests to obtain dynamic modulus are normally conducted at limited range of temperatures and loading frequencies. In order to characterize HMA mixes for pavement analysis, sigmoidal function master curves are constructed at different temperatures and loading frequencies using a time-temperature superposition principle.enSouth African Pavement Design MethodSAPDMHot-mix asphaltHot-mix asphalt modulusConference PresentationKomba, J. J., Maina, J., Anochie-Boateng, J., & O'Connell, J. S. (2012). Analytical modelling of visco-elastic behaviour of hot-mix asphalt. SATC. http://hdl.handle.net/10204/6037Komba, Julius J, JW Maina, Joseph Anochie-Boateng, and Johannes S O'Connell. "Analytical modelling of visco-elastic behaviour of hot-mix asphalt." (2012): http://hdl.handle.net/10204/6037Komba JJ, Maina J, Anochie-Boateng J, O'Connell JS, Analytical modelling of visco-elastic behaviour of hot-mix asphalt; SATC; 2012. http://hdl.handle.net/10204/6037 .TY - Conference Presentation AU - Komba, Julius J AU - Maina, JW AU - Anochie-Boateng, Joseph AU - O'Connell, Johannes S AB - 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 visco-elastic (LVE) behaviour of HMA materials at different temperatures and loading frequencies; and is required for computation of stresses, strains and displacements in flexible pavement analysis and design. Laboratory tests to obtain dynamic modulus are normally conducted at limited range of temperatures and loading frequencies. In order to characterize HMA mixes for pavement analysis, sigmoidal function master curves are constructed at different temperatures and loading frequencies using a time-temperature superposition principle. DA - 2012-07 DB - ResearchSpace DP - CSIR KW - South African Pavement Design Method KW - SAPDM KW - Hot-mix asphalt KW - Hot-mix asphalt modulus LK - https://researchspace.csir.co.za PY - 2012 T1 - Analytical modelling of visco-elastic behaviour of hot-mix asphalt TI - Analytical modelling of visco-elastic behaviour of hot-mix asphalt UR - http://hdl.handle.net/10204/6037 ER -