The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2012
Filed:
Dec. 20, 2005
Applicants:
Edward S. Kucharski, Leeming, AU;
Ralf Cord-ruwisch, Banjup, AU;
Vicky Whiffin, Delft, NL;
Salwa M. Al-thawadi, Manama, BH;
Inventors:
Edward S. Kucharski, Leeming, AU;
Ralf Cord-Ruwisch, Banjup, AU;
Vicky Whiffin, Delft, NL;
Salwa M. Al-thawadi, Manama, BH;
Assignees:
Murdoch University, Murdoch, AU;
Calcite Technology Pty Ltd, Osborne Park, AU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 14/04 (2006.01); C04B 14/00 (2006.01); C04B 24/00 (2006.01); C04B 7/00 (2006.01); C04B 16/00 (2006.01); C09C 1/02 (2006.01); C12P 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of forming a high strength cement in a permeable starting material, the method comprising the step of combining the starting material with effective amounts of (i) a urease producing micro-organism; (ii) urea; and (iii) calcium ions and wherein the effective amount of the urease producing organism provides a urea hydrolysis rate, under standard conditions, of 0.5-50 mM urea hydrolysed.min−1.