Application research of high modulus composite modified asphalt mixture in anti rutting pavement of national and provincial roads
The current rutting problem has become the main form of asphalt pavement damage on national and provincial roads.This article relies on the G518 fixed line maintenance and repair project in Zaozhuang to conduct indoor and outdoor experimental research on high modulus composite modified AC-20 asphalt mixture.Raw materials such as SBS modified asphalt,mineral aggregate,and high modulus agent were tested,and asphalt mixture gradation design was carried out to determine the mixture volume index.Field tests and subsequent tracking observations show that high modulus composite modified AC-20 asphalt mixture has excellent road performance such as high temperature stability,low temperature crack resistance,water stability,etc.,which solves the problem of road rutting and extends the service life of the road surface.
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