Abstract: To further study the applicability of recycled aggregate asphalt concrete to hydraulic structures, this paper studies the dynamic mechanical properties of this concrete in different temperature environments. Its dynamic compressive performance is examined for the temperature range of -10 ℃ to 10 ℃ and the strain rate range of 10-5 to 10-2 s-1. The test results show that the compressive strength and elastic modulus are inversely proportional to temperature and proportional to loading rate; the peak strain is proportional to temperature and inversely proportional to loading rate. An analysis of temperature influence factors and correlation coefficients reveals that both compressive strength and elastic modulus gradually decrease with the rising temperature and tend to certain constant values.

Key words: recycled aggregate, hydraulic asphalt concrete, dynamic compressive behavior, coefficient of temperature, correlation coefficient