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:
Dec. 17, 1996
Filed:
Jul. 27, 1994
Toshio Yonezawa, Tokyo, JP;
Kenrou Mitsui, Tokyo, JP;
Kunio Yanagibashi, Tokyo, JP;
Yousaku Ikeo, Tokyo, JP;
Tooru Okuno, Tokyo, JP;
Etsurou Asakura, Saitama-ken, JP;
Hisatsugu Yoshida, Saitama-ken, JP;
Mitsuo Sato, Tokyo, JP;
Mitsuo Kinoshita, Aichi-ken, JP;
Takenaka Corporation, Osaka, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Keihin Ryoko Concrete Industry Corporation, Tokyo, JP;
Takemoto Oil and Fat Corporation, Aichi-ken, JP;
Abstract
The hydraulic substance according to the present invention comprises a certain amount of solid particles A (such as portland cement and mixed cement comprising portland cement), an average diameter thereof is 5 to 50 .mu.m, and solid particles B (such as silica fume comprising amorphous silica), an average diameter thereof is less than 1/5 of the particles A, and the particles B have such characteristic that they cohere to the surfaces of the particles A in water, and the quantity of the particles B is arranged such that they cover at least to make a single layer over the whole or part of surfaces of the particles A to cover whole or part of surfaces of particles A with particles B at least with a single layer, and the quantity of the water is arranged such that it is less than 60% of the total amount of the particles A and particles B.