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. 05, 2010
Filed:
Apr. 19, 2005
Mikio Yamazaki, Minato-ku, JP;
Katsuhiro Tamura, Minato-ku, JP;
Satoru Kato, Minato-ku, JP;
Yukihisa Mine, Minato-ku, JP;
Yoshihiro Tanaka, Shinjyuku-ku, JP;
Akio Ohtake, Shinjyuku-ku, JP;
Koichi Kanoh, Shinjyuku-ku, JP;
Ariyoshi Makimoto, Shinjyuku-ku, JP;
Mikio Yamazaki, Minato-ku, JP;
Katsuhiro Tamura, Minato-ku, JP;
Satoru Kato, Minato-ku, JP;
Yukihisa Mine, Minato-ku, JP;
Yoshihiro Tanaka, Shinjyuku-ku, JP;
Akio Ohtake, Shinjyuku-ku, JP;
Koichi Kanoh, Shinjyuku-ku, JP;
Ariyoshi Makimoto, Shinjyuku-ku, JP;
Taisei Corporation, Tokyo, JP;
Central Japan Railway Company, Aichi, JP;
Abstract
A non-magnetic concrete structure having no magnetism or a very small magnetic permeability without reinforcing steel bars arranged, a sidewall for a guideway, and a method for installing the sidewall for the guideway are provided. The reinforcing steel bars-free sidewallfor the guidewayis constructed by using a non-magnetic concrete structure constructed by using a fiber-reinforced cement-based mixed material and having no reinforcing steel bars therein. The fiber-reinforced cement-based mixed material is produced by mixing non-metallic fibers or non-magnetic metal fibers into a cement-based matrix in a mixing amount of 1 to 4% for an entire volume of the cement-based matrix. The cement-based matrix is obtained by mixing a composition with water. The above composition is composed of cement, aggregate grains having a maximum grain diameter of not more than 2.5 mm, pozzolanic reaction particles having particle diameters of not more than 15 μm and supper plasticizer. The fiber-reinforced cement-based mixed material has mechanical properties: a compressive strength of not less than 150 N/mmand a tensile strength of not less than 5 N/mm.