Warm mix asphalt production system and method
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United States of America Patent
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Oct 8, 2013
Grant Date -
Sep 20, 2012
app pub date -
May 29, 2012
filing date -
Feb 18, 2008
priority date (Note) -
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Abstract
A warm mix asphalt plant comprising a counter-flow drum, apparatus for precisely metering flows of A/C and water, an asphalt expander with no moving internal parts where a circular curtain of flowing clean water is mixed with a coaxial circular curtain of moving heated A/C to create asphalt foam which is heated and mixed inside a lower portion of the asphalt expander and then distributed to cover aggregate inside the counter-flow drum.
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Cited Art Landscape
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