CPC C09K 17/44 (2013.01) [C04B 24/14 (2013.01); C04B 28/003 (2013.01); E02D 3/12 (2013.01); C04B 2103/0001 (2013.01); C04B 2111/00732 (2013.01); C12Y 305/01005 (2013.01); E02D 2300/0025 (2013.01); E02D 2300/0045 (2013.01)] | 8 Claims |
1. A method of biocementation comprising:
treating, via only one treatment cycle, a granular, cohesionless soil with a solution comprising:
urea;
urease;
a source of calcium ions; and
a source of non-urease proteins, wherein the urea, urease, source of calcium ions, and source of non-urease proteins are provided in effective amounts suitable to cause crystallization of calcium carbonate, and wherein the source of non-urease proteins comprises an enzyme stabilizer; and
responsive to the only one treatment cycle, forming an enzyme induced carbonate precipitation (EICP) treated soil comprising an unconfined compressive strength of greater than 0.5 MPa and a carbonate content of less than 3% by weight.
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