MECHANISM AND FACTORS OF POT-HOLE IN ASPHALT PAVEMENT ON BRIDGE-DECKS BY THE IMMERSION WHEEL TRACKING TEST

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  • 水浸ホイールトラッキング実験による橋面舗装でのポットホールの発生とその要因

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The presence of water in an asphart pavement on bridge-deck can lead the pavement to failure. For this research, specimens were made in laboratory. The test wheel was tracking and traversed on a specimen under supplying water from its bottom until the pot-hole was occurred, and the mechanism of occurrence and factors of influence on the pot-hole were discussed. The factors selected for the experiment are design of asphalt mixture, binder course material, difference of the boundary, supply of water, variety of aggregate, anti-stripping agent.

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