Methods for making construction material using enzyme producing bacteria
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United States of America Patent
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May 20, 2014
Grant Date -
Oct 27, 2011
app pub date -
Apr 25, 2011
filing date -
Apr 27, 2010
priority date (Note) -
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Abstract
There is provided a method for producing construction material utilizing loose pieces of aggregate, enzyme producing bacteria, an amount of urea and an amount of calcium ions. A first solution is prepared which includes urease which is formed by enzyme producing bacteria. A second solution is prepared which includes urea and calcium ions. The first and second solutions are added to the loose aggregate. The calcium ions contribute to the formation of calcium carbonate wherein the calcium carbonate fills and bonds between at least some of the gaps between the loose pieces of aggregate forming a solid construction material.
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