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:
Aug. 25, 2015
Filed:
Aug. 19, 2013
Applicant:
Taisei Corporation, Tokyo, JP;
Inventors:
Assignee:
TAISEI CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/04 (2006.01); C04B 14/28 (2006.01); C04B 14/18 (2006.01); C04B 18/08 (2006.01); C04B 18/14 (2006.01); C04B 20/00 (2006.01); C04B 22/06 (2006.01); C04B 28/02 (2006.01); C04B 28/08 (2006.01);
U.S. Cl.
CPC ...
C04B 28/04 (2013.01); C04B 28/021 (2013.01); C04B 28/08 (2013.01);
Abstract
A cementitious matrix in which the development of early strength is fast, the hydration heat temperature is small, and the amount of shrinkage during curing is small, while keeping the fluidity when concrete is fresh, is provided. The cementitious matrix is characterized by comprising 100 parts by weight of Portland cement, 5 to 30 parts by weight of silica fume, 5 to 25 parts by weight of limestone powder, 30 to 80 parts by weight of at least one of ground blast furnace slag or fly ash, at least one chemical admixture, water, and 70 to 150 parts by weight of aggregate having a largest aggregate diameter of 1.2 to 3.5 mm.