Use of Limited Experimental Data for the Prediction of Creep and Recovery of Asphalt Binders

Abstract

Prediction of creep and recovery of asphalt binders using limited experimental data can reduce instrumental stress and save time. A simple methodology, using generalized Burger's model (GBM) and time temperature superposition principle (TTSP), has been proposed to predict the creep and recovery response of asphalt binders at different temperatures. The proposed methodology has been validated using six different asphalt binders at a stress level of 3.2 kPa. It is found that the proposed technique offers reasonable prediction of unrecoverable creep compliance and percentage recovery with a percentage error of ±10%. © 2021 American Society of Civil Engineers.