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In order to improve the low-temperature rheological performance (LTRP) of asphalt mastic, aluminate coupling agent (ACA) and stearic acid synergist (SAS) were employed in this research. Three factors, which are the ratio of filler to asphalt (F/A), the dosage of ACA (percentage by weight of mineral filler) and the mass ratio between ACA and SAS, were considered, and the testing program is arranged...
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