Improvement on Temperature Susceptibility of Matrix Asphalt Modified with Natural Rock Asphalt

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Abstract:

In order to study the influence of natural rock asphalt on the temperature susceptibility of matrix asphalt, the effect of matrix asphalt modified with different dosage natural asphalt was analyzed by penetration index and viscosity temperature index. Research results show that the PI value and softening point of modified asphalt grow with increase of natural asphalt dosage, however viscosity temperature index (VTS) decreases gradually, which indicate that modified asphalt is less influenced by temperature. Namely, the temperature susceptibility is improved, and the improvement effect changes with the increase of natural asphalt dosage.

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Advanced Materials Research (Volumes 1004-1005)

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1512-1515

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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