Title:
A repair method of a concrete structure
Document Type and Number:
Japanese Patent JP5938976
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for patching a concrete structure with excellent workability and capable of forming a hardened mortar having excellent corrosion resistance (especially acid resistance) and adhesiveness.SOLUTION: The method for patching a concrete structure comprises a mortar application step to compound and knead a highly acid-resistant hydraulic composition with water and apply the prepared mortar composition to a part formed by removing a part of the concrete structure, and a hardened material forming step to form a hardened mortar at the removed part by hardening the mortar composition, wherein the highly acid-resistant hydraulic composition contains alumina cement, alumina cement clinker, blast furnace slag, silica fume, fine aggregate and lithium carbonate, 20-90 mass% of the blast furnace slag has a Blaine specific surface area of 6,000-10,000 cm/g, and the quantity of the silica fume is 1-12 pts.mass based on 100 pts.mass of the alumina cement.
Inventors:
Yoshinori Nakajima
Koji Onishi
Katsuhiko Masaki
Koji Onishi
Katsuhiko Masaki
Application Number:
JP2012066241A
Publication Date:
June 22, 2016
Filing Date:
March 22, 2012
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
C04B28/06; C04B18/14; C04B22/10; C04B24/26; C04B41/65; E04G23/02
Domestic Patent References:
| JP2006044958A | ||||
| JP5097483A | ||||
| JP2007070153A | ||||
| JP11278881A |
Other References:
コンクリート総覧,1998年 6月10日,第1版,90ページ
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yasunori Ishizaka
Yoshiki Kuroki
Yasunori Ishizaka