Title:
コンクリート構造物の補修部材及び補修方法
Document Type and Number:
Japanese Patent JP7144199
Kind Code:
B2
Abstract:
To provide a repair member and a repair method for a concrete structure, which exert sufficient repair strength, may suppress water permeability to the concrete structure, and may retain water vapor permeability from the concrete structure.SOLUTION: There is provided a repair member for a concrete structure which comprises a lamination base impregnated with a composition containing aqueous silicate solution and a pozzolanic active substance having an electrical conductivity difference of 0.4 mS/cm or more, and a water repellent agent layer laminated on the lamination base. The lamination base is a base in which sheet members of multifilaments assembled in a multiaxial mesh and liquid-permeable sheets are laminated. The water repellent agent layer has a water absorption rate of 75% or less and a water vapor permeability rate of 20% or more after 24 hours immersion into water. There is also provided a repair method for the concrete structure, comprising a step of preparing the repair member, a step of attaching the repair member to the concrete structure, a step of curing the repair member, and a step of applying or impregnating water repellent agent onto the surface of the repair member so as to form the water repellent layer.SELECTED DRAWING: Figure 1
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Inventors:
Hashimoto Masayuki
Masanori Shimada
Masanori Shimada
Application Number:
JP2018107573A
Publication Date:
September 29, 2022
Filing Date:
June 05, 2018
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
E04G23/02; C04B41/68; E01D1/00; E01D22/00
Domestic Patent References:
| JP2017186825A | ||||
| JP2009097264A | ||||
| JP2018059298A | ||||
| JP2012176854A | ||||
| JP2001342048A | ||||
| JP2017226955A | ||||
| JP2017128908A | ||||
| JP2002060283A | ||||
| JP2011236485A |
Foreign References:
| US6238761 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation