ABSTRACT
Emulsified cold recycled mixtures (ECRM) consists of reclaimed asphalt pavement materials, water, cement and bituminous emulsion. ECRM has a high air void of approximately 15%. Very little information is available on the stress-strain-confinement pressure-time response of ECRM and such data is necessary to prescribe an appropriate constitutive relationship. In this study, ECRM was subjected to repeated haversine compression loading at 0°C and 50°C, with and without confinement pressure over ten frequencies (25 Hz to 0.01 Hz). The influence of confinement pressure on the mechanical response of ECRM was observed to be significant at high temperature when compared to low temperature. The material exhibited diverse mechanical response, and it was seen that the phase angle increased as the frequency increased at high temperature without confinement pressure. The experimental data collected underlines the multiple retardation times of the material, and this will come in handy when developing appropriate constitutive models.
