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A platform for research: civil engineering, architecture and urbanism
REPAIR METHOD FOR DETERIORATED PART OF EXISTING STRUCTURE AND REPAIR MORTAR COMPOSITION
To provide a repairing method for a deteriorated part of an existing structure having long-term durability by reinforcing an interface between concrete and cement mortar by spraying a repairing mortar composition containing a specific material and satisfying results of adhesion strength, a thick coating property test, a setting time test and chloride ion penetration depth measured by a specific method to a place where the deteriorated part is removed in the existing structure, which is a concrete structure.SOLUTION: A repairing method for deteriorated parts of existing structures comprises the steps of: removing a deteriorated part in an existing structure; and spraying a repairing mortar composition on a part where the deteriorated part has been removed, wherein the repairing mortar composition contains cement, fine aggregate, a salt fixing material mainly composed of CaO 2Al2O3, a water-reducing agent, fibers, a polymer for cement admixture, a quick-hardening material, and water, and the repairing mortar composition satisfies the results of an adhesion test, a thick coating property test, a setting time test, and a chloride ion penetration depth test.SELECTED DRAWING: None
【課題】コンクリート構造物である既設構造物における劣化部を除去した箇所へ、特定の材料を含有し、特定の方法で測定される付着強度、厚塗り性試験、凝結時間試験、及び、塩化物イオン浸透深さの結果を満たす補修モルタル組成物を吹き付けることで、コンクリートとセメントモルタルとの界面を強化し、長期の耐久性を有する既設構造物劣化部の補修工法を提供する。【解決手段】既設構造物における劣化部を除去する工程と、劣化部を除去した箇所へ補修モルタル組成物を吹き付ける工程とを含み、補修モルタル組成物は、セメント、細骨材、ＣａＯ・２Ａｌ２Ｏ３を主成分とする塩分固定材、減水剤、繊維、セメント混和用ポリマー、急硬材、及び水を含有し、補修モルタル組成物は、付着試験、厚塗り性試験、凝結時間試験、及び、塩化物イオン浸透深さ試験の結果を満たす、既設構造物劣化部の補修工法。【選択図】なし
REPAIR METHOD FOR DETERIORATED PART OF EXISTING STRUCTURE AND REPAIR MORTAR COMPOSITION
To provide a repairing method for a deteriorated part of an existing structure having long-term durability by reinforcing an interface between concrete and cement mortar by spraying a repairing mortar composition containing a specific material and satisfying results of adhesion strength, a thick coating property test, a setting time test and chloride ion penetration depth measured by a specific method to a place where the deteriorated part is removed in the existing structure, which is a concrete structure.SOLUTION: A repairing method for deteriorated parts of existing structures comprises the steps of: removing a deteriorated part in an existing structure; and spraying a repairing mortar composition on a part where the deteriorated part has been removed, wherein the repairing mortar composition contains cement, fine aggregate, a salt fixing material mainly composed of CaO 2Al2O3, a water-reducing agent, fibers, a polymer for cement admixture, a quick-hardening material, and water, and the repairing mortar composition satisfies the results of an adhesion test, a thick coating property test, a setting time test, and a chloride ion penetration depth test.SELECTED DRAWING: None
【課題】コンクリート構造物である既設構造物における劣化部を除去した箇所へ、特定の材料を含有し、特定の方法で測定される付着強度、厚塗り性試験、凝結時間試験、及び、塩化物イオン浸透深さの結果を満たす補修モルタル組成物を吹き付けることで、コンクリートとセメントモルタルとの界面を強化し、長期の耐久性を有する既設構造物劣化部の補修工法を提供する。【解決手段】既設構造物における劣化部を除去する工程と、劣化部を除去した箇所へ補修モルタル組成物を吹き付ける工程とを含み、補修モルタル組成物は、セメント、細骨材、ＣａＯ・２Ａｌ２Ｏ３を主成分とする塩分固定材、減水剤、繊維、セメント混和用ポリマー、急硬材、及び水を含有し、補修モルタル組成物は、付着試験、厚塗り性試験、凝結時間試験、及び、塩化物イオン浸透深さ試験の結果を満たす、既設構造物劣化部の補修工法。【選択図】なし
REPAIR METHOD FOR DETERIORATED PART OF EXISTING STRUCTURE AND REPAIR MORTAR COMPOSITION
既設構造物劣化部の補修工法及び補修モルタル組成物
KOSE YOSHIMI (author) / KOBAYASHI YUSUKE (author) / MATSUDA YOSHINORI (author) / OKADA (YAMAZAKI) YUKI (author) / SAITO MAKOTO (author) / YAMAGISHI TAKANORI (author) / SASAKI TAKASHI (author) / MIZUNO HIROKI (author)
2024-07-23
Patent
Electronic Resource
Japanese
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