Method for making an asymmetrical concrete backerboard
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United States of America Patent
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Apr 9, 2013
Grant Date -
Jun 17, 2010
app pub date -
Feb 22, 2010
filing date -
Apr 9, 2001
priority date (Note) -
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Abstract
The present invention is a method of making a backerboard having a fiberglass mesh on one side, and an impervious reinforcement membrane on the other side. The backerboard incorporates a low density, high compressive strength concrete core having an upper principal surface and a lower principal surface. The upper principal surface of the core is covered by a fiberglass mesh reinforcement layer, itself covered and bonded to the core by a thin layer of Portland cement. The lower principal surface of the backerboard is covered with a high tensile strength, impervious reinforcement membrane.
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