Title:
【発明の名称】既設構造物の補修・補強用コンクリートおよびその製法
Document Type and Number:
Japanese Patent JP3012499
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a concrete having performances required for repairing and reinforcing concrete structures damaged by an earthquake, etc. SOLUTION: A concrete composition for repairing and reinforcing constructed structures comprises water in an amount of 160-185kg/cm<3> per m<3> of the concrete, a cement in an amount of 300-600kg/cm<3> , rough aggregates in a volume of <=350 liter/m<3> , fine powdery materials comprising one or more kinds of stone powder, fly ash and blast furnace slag fine powder in a total amount of >=400kg/m<2> together with the cement, and fine aggregates in the residual amount, and further 3-15kg/m<3> of a high performance water-reducing agent, 0.03-0.085kg/m<3> of metal aluminum fine powder, 20-60kg/m<3> of a swelling agent for the concrete, and <=4kg/m<3> of a thickening agent.
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Inventors:
Tadanori Otomo
Minoru Iwai
Koji Okada
Shuji Yanai
Minoru Iwai
Koji Okada
Shuji Yanai
Application Number:
JP25205495A
Publication Date:
February 21, 2000
Filing Date:
September 06, 1995
Export Citation:
Assignee:
Kashima Construction Co., Ltd.
International Classes:
E04G23/02; B28C7/04; C04B22/04; C04B22/14; C04B24/38; C04B28/02; (IPC1-7): C04B28/02; B28C7/04; C04B22/04; C04B22/14; C04B24/38; E04G23/02
Domestic Patent References:
| JP5147995A | ||||
| JP2252645A | ||||
| JP3177347A | ||||
| JP5133105A |
Attorney, Agent or Firm:
Kenji Wada