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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/6037

Title: Analytical modelling of visco-elastic behaviour of hot-mix asphalt
Authors: Komba, J
Maina, JW
Anochie-Boateng, JK
O’Connell, J
Keywords: South African Pavement Design Method
SAPDM
Hot-mix asphalt
Hot-mix asphalt modulus
Issue Date: Jul-2012
Publisher: SATC
Citation: Komba, 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 2012
Series/Report no.: Workflow;9371
Abstract: 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.
Description: 31st Southern African Transport Conference (SATC 2012), CSIR International Convention Centre, Pretoria, South Africa, 9-12 July 2012
URI: http://www.satc.org.za/index.php?page=1000351
http://hdl.handle.net/10204/6037
Appears in Collections:Infrastructure engineering
General science, engineering & technology

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