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Polymer Cement Mortar Composition for repair and reinforcement of concrete structure section using graphene and repair and reinforcement method of concrete structure using same
The present invention relates to a composition for repairing and reinforcing the cross section of a concrete structure containing 5 to 70 wt% of a functional binder, 5 to 90 wt% of fine aggregate, 0.1 to 10 wt% of a graphene dispersion and 0.1 to 25 wt% of water, and to a repair and reinforcement method of the concrete structure using the same. The functional binder contains, based on a total 100 wt% of the functional binder: 15 to 90 wt% of crude steel Portland cement; 5 to 50 wt% of calcium or magnesium sulfoaluminate; 1 to 40 wt% of calcium chloroaluminate; 1 to 30 wt% of hollow silica; 0.1 to 20 wt% of diatomite; 0.1 to 15 wt% of plaster; 0.1 to 15 wt% of a lithium silicate-potassium silicate mixture; 0.1 to 10 wt% of bentonite; 0.1 to 10 wt% of emery powder; 0.1 to 10 wt% of an ethylene-vinyl acetate-vinyl chloride copolymer; 0.1 to 10 wt% of a methyl methacrylate-styrene butadiene copolymer; to 10 wt% of an acrylonitrile-butadiene-polyvinyl chloride copolymer; and 0.1 to 10 wt% of cellulose acetate. When the concrete structure is repaired by using the composition of the present invention, the flexural toughness, abrasion resistance, salt damage resistance, neutralization resistance, freezing and thawing resistance, and surface hardness of the concrete structure can be improved by using a graphene dispersion and a functional binder, thereby being able to significantly reduce the maintenance cost of the concrete structure.
본 발명은 기능성 결합재 5∼70중량%, 잔골재 5∼90중량%, 그래핀 분산액 0.1~10중량% 및 물 0.1∼25중량%를 포함하는 콘크리트 구조물 단면 보수·보강용 조성물 및 이를 이용한 콘크리트 구조물 보수·보강 공법으로서, 상기 기능성 결합재는, 기능성 결합재의 총 100 중량% 기준으로, 조강 포틀랜드 시멘트 15∼90중량%, 칼슘 또는 마그네슘설포알루미네이트 5∼50중량%, 칼슘클로로알루미네이트 1∼40중량%, 중공형 실리카 1∼30중량%, 규조토 0.1∼20중량%, 석고 0.1∼15중량%, 리튬실리케이트-포타슘실리케이트 혼합물 0.1∼15중량%, 벤토나이트 0.1∼10중량%, 에머리 분말 0.1∼10중량, 에틸렌-초산비닐-염화비닐 공중합체 0.1∼10중량%, 메틸메타아크릴레이트-스티렌 부타디엔 공중합체 0.1∼10중량%, 아크릴로니트릴-부타디엔-폴리염화비닐 공중합체 0.1∼10중량% 및 셀룰로오스 아세테이트 0.1∼10중량%를 포함한다. 본 발명의 조성물을 사용하여 콘크리트 구조물을 보수하면, 그래핀 분산액과 기능성 결합재를 사용함으로써 콘크리트 구조물에 대한 휨인성, 내마모성, 내염해성, 중성화 저항성, 동결융해 저항성 및 표면경도를 개선할 수 있어, 콘크리트 구조물의 유지관리 비용을 현저히 절감할 수 있다.
Polymer Cement Mortar Composition for repair and reinforcement of concrete structure section using graphene and repair and reinforcement method of concrete structure using same
The present invention relates to a composition for repairing and reinforcing the cross section of a concrete structure containing 5 to 70 wt% of a functional binder, 5 to 90 wt% of fine aggregate, 0.1 to 10 wt% of a graphene dispersion and 0.1 to 25 wt% of water, and to a repair and reinforcement method of the concrete structure using the same. The functional binder contains, based on a total 100 wt% of the functional binder: 15 to 90 wt% of crude steel Portland cement; 5 to 50 wt% of calcium or magnesium sulfoaluminate; 1 to 40 wt% of calcium chloroaluminate; 1 to 30 wt% of hollow silica; 0.1 to 20 wt% of diatomite; 0.1 to 15 wt% of plaster; 0.1 to 15 wt% of a lithium silicate-potassium silicate mixture; 0.1 to 10 wt% of bentonite; 0.1 to 10 wt% of emery powder; 0.1 to 10 wt% of an ethylene-vinyl acetate-vinyl chloride copolymer; 0.1 to 10 wt% of a methyl methacrylate-styrene butadiene copolymer; to 10 wt% of an acrylonitrile-butadiene-polyvinyl chloride copolymer; and 0.1 to 10 wt% of cellulose acetate. When the concrete structure is repaired by using the composition of the present invention, the flexural toughness, abrasion resistance, salt damage resistance, neutralization resistance, freezing and thawing resistance, and surface hardness of the concrete structure can be improved by using a graphene dispersion and a functional binder, thereby being able to significantly reduce the maintenance cost of the concrete structure.
본 발명은 기능성 결합재 5∼70중량%, 잔골재 5∼90중량%, 그래핀 분산액 0.1~10중량% 및 물 0.1∼25중량%를 포함하는 콘크리트 구조물 단면 보수·보강용 조성물 및 이를 이용한 콘크리트 구조물 보수·보강 공법으로서, 상기 기능성 결합재는, 기능성 결합재의 총 100 중량% 기준으로, 조강 포틀랜드 시멘트 15∼90중량%, 칼슘 또는 마그네슘설포알루미네이트 5∼50중량%, 칼슘클로로알루미네이트 1∼40중량%, 중공형 실리카 1∼30중량%, 규조토 0.1∼20중량%, 석고 0.1∼15중량%, 리튬실리케이트-포타슘실리케이트 혼합물 0.1∼15중량%, 벤토나이트 0.1∼10중량%, 에머리 분말 0.1∼10중량, 에틸렌-초산비닐-염화비닐 공중합체 0.1∼10중량%, 메틸메타아크릴레이트-스티렌 부타디엔 공중합체 0.1∼10중량%, 아크릴로니트릴-부타디엔-폴리염화비닐 공중합체 0.1∼10중량% 및 셀룰로오스 아세테이트 0.1∼10중량%를 포함한다. 본 발명의 조성물을 사용하여 콘크리트 구조물을 보수하면, 그래핀 분산액과 기능성 결합재를 사용함으로써 콘크리트 구조물에 대한 휨인성, 내마모성, 내염해성, 중성화 저항성, 동결융해 저항성 및 표면경도를 개선할 수 있어, 콘크리트 구조물의 유지관리 비용을 현저히 절감할 수 있다.
Polymer Cement Mortar Composition for repair and reinforcement of concrete structure section using graphene and repair and reinforcement method of concrete structure using same
그래핀을 이용한 콘크리트 구조물 단면 보수·보강용 폴리머 시멘트 모르타르 조성물 및 이를 이용한 콘크리트 구조물 보수·보강 공법
KIM HYUNG JIN (author) / HONG KUK UN (author)
2020-09-23
Patent
Electronic Resource
Korean
IPC:
C04B
Kalk
,
LIME
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
E01D
BRIDGES
,
Brücken
/
E02D
FOUNDATIONS
,
Gründungen
/
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
,
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
/
E03F
SEWERS
,
Abwasserkanäle
/
F16L
PIPES
,
Rohre
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