Abstract
Owing to the importance of cement asphalt mortar (CA mortar) in the service of high-speed lines, an extensive experiment is conducted to investigate the compressive behavior of CA mortar when the temperature and loading rate are changed. The coupled effects of temperature and loading rate on the mechanical properties and stress–strain relationship of CA mortar with high elastic modulus are analyzed. Based on the experimental observations, the empirical equations of peak stress and corresponding axial strain of CA mortar are obtained. Finally, a stress–strain model of CA mortar is proposed in this paper to describe the compressive behavior of CA mortar subjected to the coupled effect of temperature and loading rate.
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