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:
Jul. 31, 2018
Filed:
Oct. 31, 2017
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Hidekazu Konishi, Joetsu, JP;
Tsutomu Yamakawa, Joetsu, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 18/24 (2006.01); C04B 24/18 (2006.01); C04B 24/02 (2006.01); C04B 24/04 (2006.01); C04B 14/06 (2006.01); C04B 14/04 (2006.01); C04B 40/00 (2006.01); C04B 28/04 (2006.01); C04B 103/30 (2006.01); C04B 103/40 (2006.01);
U.S. Cl.
CPC ...
C04B 18/24 (2013.01); C04B 14/04 (2013.01); C04B 14/06 (2013.01); C04B 24/02 (2013.01); C04B 24/023 (2013.01); C04B 24/04 (2013.01); C04B 24/18 (2013.01); C04B 28/04 (2013.01); C04B 40/0028 (2013.01); C04B 2103/302 (2013.01); C04B 2103/304 (2013.01); C04B 2103/402 (2013.01);
Abstract
A concrete composition is obtained by dry mixing cement and an aggregate, adding thereto a water dispersion which is preformed by dispersing a low substituted hydroxypropyl cellulose having a hydroxypropoxy substitution of 5-16 wt % in the form of fibrous particles having an aspect ratio of 4-7 in water, and mixing the ingredients. Because of reduced drying shrinkage, only a little drop of fluidity, and proper flow, the concrete composition is useful to form concrete buildings having frost damage resistance.