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:
Sep. 22, 2020
Filed:
Feb. 10, 2016
Applicant:
The Regents of the University of Michigan, Ann Arbor, MI (US);
Inventors:
Victor C. Li, Ann Arbor, MI (US);
Emily Herbert, Williamston, MI (US);
Assignee:
THE REGENTS OF THE UNIVERSITY OF MICHIGAN, Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B 3/28 (2006.01); C04B 40/06 (2006.01); C04B 14/06 (2006.01); C04B 16/06 (2006.01); C04B 18/14 (2006.01); C04B 28/04 (2006.01); E01B 3/32 (2006.01); C04B 103/32 (2006.01); C04B 103/44 (2006.01);
U.S. Cl.
CPC ...
E01B 3/28 (2013.01); C04B 14/06 (2013.01); C04B 16/06 (2013.01); C04B 18/146 (2013.01); C04B 28/04 (2013.01); C04B 40/0675 (2013.01); E01B 3/32 (2013.01); C04B 2103/32 (2013.01); C04B 2103/44 (2013.01); C04B 2201/52 (2013.01); Y02A 30/336 (2018.01); Y02W 30/92 (2015.05); Y02W 30/94 (2015.05); Y02W 30/96 (2015.05);
Abstract
A railway tie being constructed of an engineered cementitious composite (ECC) material having: (1) a minimum of 2% tensile ductility of ECC, (2) complete absence of alkali-silica reaction (ASR), (3) high fatigue resistance of ECC at least five times that of normal concrete, (4) self-healing ability of ECC requiring only water and air, and (5) customization of ECC for lower stiffness in the tie (60% that of normal concrete) and higher abrasion resistance in the seat (three times that of normal concrete).