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:
Mar. 09, 2021
Filed:
May. 19, 2016
Applicant:
Georgia Tech Research Corporation, Atlanta, GA (US);
Inventors:
Lawrence Kahn, Atlanta, GA (US);
Kimberly E. Kurtis, Atlanta, GA (US);
Assignee:
Georgia Tech Research Corporation, Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C 39/12 (2006.01); C04B 28/04 (2006.01); C04B 28/02 (2006.01); B29C 39/02 (2006.01); C04B 14/06 (2006.01); C04B 18/02 (2006.01); C04B 111/00 (2006.01); C04B 103/00 (2006.01); C04B 111/40 (2006.01);
U.S. Cl.
CPC ...
C04B 28/04 (2013.01); B29C 39/02 (2013.01); B29C 39/12 (2013.01); B29C 39/123 (2013.01); C04B 14/06 (2013.01); C04B 18/027 (2013.01); C04B 28/02 (2013.01); C04B 2103/0027 (2013.01); C04B 2111/00103 (2013.01); C04B 2111/00612 (2013.01); C04B 2111/40 (2013.01); Y02W 30/91 (2015.05);
Abstract
Adding a small amount of lightweight course aggregate to a normal weight concrete mix to produce a clean, rough top surface so that manual or mechanical roughing of the top surface is not necessary. The lightweight course aggregate will float to the surface, and make a rough surface so that the bond and shear resistance of the interface (cold joint) between previously placed and newly placed concrete will be as strong as a manually roughened joint.