Effects of Self-made Warm Mixing Agent on Performance of Hard Asphalt
Hard asphalt is beneficial for increasing the stiffness modulus and improving the rutting resistance and durability of asphalt mixtures.However,the high content of hard components and the large viscosity of the cementitious material system inside the hard asphalt would cause defects of high construction temperature,high pollutant emissions,and not conducive to energy saving and emission reduction in the road industry.In this paper,the self-made organic viscosity-reducing warm mixing agent was added to hard asphalt at different dosages to prepare warm-mix hard asphalt,and the main technical indexes,apparent viscosity,microscopic morphology changes,and asphalt mixture properties of hard asphalt before and after adding the self-made warm mixing agent were systematically investigated.The study results can provide a reference for extending low-carbon applications of hard asphalt in China's road industry.
hard asphaltwarm mixing agentviscosityasphalt mixture
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