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. 11, 2005
Filed:
Sep. 13, 2001
Minoru Morioka, Niigata, JP;
Yasuhiro Nakashima, Niigata, JP;
Takayuki Higuchi, Niigata, JP;
Mitsuo Takahashi, Niigata, JP;
Minoru Morioka, Niigata, JP;
Yasuhiro Nakashima, Niigata, JP;
Takayuki Higuchi, Niigata, JP;
Mitsuo Takahashi, Niigata, JP;
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A cement composition of an environmental impact reducing type, used in the field of civil engineering and construction, which provides initial strength-development equal to that of ordinary Portland cement and which can reduce the clinker calcination amount, is provided. A cement composition containing Portland cement having a 3CaO.SiOcontent of at least 60% and a slowly cooled blast furnace slag powder, wherein the content of the slowly cooled blast furnace slag powder is from 10 to 50 parts per 100 parts of the cement composition.