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:
Jan. 30, 2007
Filed:
Apr. 30, 2004
Applicants:
Victor C. LI, Ann Arbor, MI (US);
Shuxin Wang, Ann Arbor, MI (US);
Inventors:
Victor C. Li, Ann Arbor, MI (US);
Shuxin Wang, Ann Arbor, MI (US);
Assignee:
The Regents of The University of Michigan, Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 14/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
Purposeful addition of crack-initiating voids in the form of low tensile strength particulates, particulates having low matrix interaction, or gas bubbles formed by chemical reaction, in a size range of 0.5 mm to about 5 mm, and preferably of a size commensurate with or larger than naturally occurring crack-initiating gaseous voids, to fiber-reinforced strain hardening cementitious composites generates controlled and uniform cracking which increases strain hardening behavior in conventionally dense cementitious compositions.