Foamed composition for pavement patching, and methods of utilizing and producing the same
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United States of America Patent
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Jun 28, 2016
Issued Date -
N/A
app pub date -
Oct 3, 2014
filing date -
May 20, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A low density annular grout composition for filling voids. The composition may consist of cementitious fly ash, water, set retarder and cellular foam. The composition may have a compressive strength of between 100 and 600 psi at seven days and less than 1500 psi at 28 days. The composition may have a density between 20 and 75 pcf. Also disclosed is a method of filling a void with a low density annular grout composition. The method can include determining the time necessary to fill the void, adding water and set retarder to a cementitious fly ash to make a wet mixture, adding air to the wet mixture, and adding the composition to the void.
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Cited Art Landscape
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