Apparatus and method for measuring rutting susceptibility
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United States of America Patent
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Oct 19, 1999
Issued Date -
N/A
app pub date -
Apr 18, 1996
filing date -
Jan 11, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for testing rutting susceptibility of test specimens. The apparatus includes a specimen holder having cavities for receiving one or more test specimens having an exposed surface for testing. A load bearing surface is positioned above the specimens to prevent friction from effecting the rutting analysis. A load device including at least one loading wheel is positioned adjacent the specimen holder wherein the loading wheels matingly engage the load bearing device. A motive sources provides relative rotational movement between the specimen holder and the loading wheels whereby a load is repeatedly applied to the test specimens under a constant velocity. The method includes testing rutting susceptibility of test specimens by providing a rotational load thereupon whereby the load reflects a linear or constant load across the predetermined path of travel of the loading wheels over the exposed surface of the test specimens.
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