Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
REPAIR MEMBER AND REPAIR METHOD FOR CONCRETE STRUCTURE
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
【課題】十分な補修強度があり、コンクリート構造物への透水を抑制し、かつコンクリート構造物からの水蒸気透過性を維持することができるコンクリート構造物の補修部材及び補修方法を提供することを目的とする。【解決手段】珪酸塩水溶液と、電気伝導率差０．４ｍＳ／ｃｍ以上であるポゾラン活性物質とを含む組成物が含浸された積層基材及び前記積層基材上に積層された撥水剤層を備え、前記積層基材は、マルチフィラメントを多軸メッシュ状に組み合わせたシート状部材と、透液性のシート状部材とが積層された基材であり、前記撥水剤層は、水への浸漬２４ｈｒ後の吸水率が７５％以下、かつ水蒸気透過率が２０％以上であるコンクリート構造物の補修部材；ならびにこの補修部材を準備する工程と、該補修部材をコンクリート構造物に貼り付ける工程と、前記補修部材を硬化させる工程と、前記補修部材の表面に、撥水剤を塗布又は含浸して撥水剤層を形成する工程とを含むコンクリート構造物の補修方法。【選択図】図１
REPAIR MEMBER AND REPAIR METHOD FOR CONCRETE STRUCTURE
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
【課題】十分な補修強度があり、コンクリート構造物への透水を抑制し、かつコンクリート構造物からの水蒸気透過性を維持することができるコンクリート構造物の補修部材及び補修方法を提供することを目的とする。【解決手段】珪酸塩水溶液と、電気伝導率差０．４ｍＳ／ｃｍ以上であるポゾラン活性物質とを含む組成物が含浸された積層基材及び前記積層基材上に積層された撥水剤層を備え、前記積層基材は、マルチフィラメントを多軸メッシュ状に組み合わせたシート状部材と、透液性のシート状部材とが積層された基材であり、前記撥水剤層は、水への浸漬２４ｈｒ後の吸水率が７５％以下、かつ水蒸気透過率が２０％以上であるコンクリート構造物の補修部材；ならびにこの補修部材を準備する工程と、該補修部材をコンクリート構造物に貼り付ける工程と、前記補修部材を硬化させる工程と、前記補修部材の表面に、撥水剤を塗布又は含浸して撥水剤層を形成する工程とを含むコンクリート構造物の補修方法。【選択図】図１
REPAIR MEMBER AND REPAIR METHOD FOR CONCRETE STRUCTURE
コンクリート構造物の補修部材及び補修方法
HASHIMOTO MASAYUKI (Autor:in) / SHIMADA MASANORI (Autor:in)
12.12.2019
Patent
Elektronische Ressource
Japanisch
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