KR102178145B1 - Mortar Composition for Repair Section and Constructing Methods Using Thereof - Google Patents

Mortar Composition for Repair Section and Constructing Methods Using Thereof Download PDF

Info

Publication number
KR102178145B1
KR102178145B1 KR1020200074353A KR20200074353A KR102178145B1 KR 102178145 B1 KR102178145 B1 KR 102178145B1 KR 1020200074353 A KR1020200074353 A KR 1020200074353A KR 20200074353 A KR20200074353 A KR 20200074353A KR 102178145 B1 KR102178145 B1 KR 102178145B1
Authority
KR
South Korea
Prior art keywords
parts
weight
cement
mortar composition
cross
Prior art date
Application number
KR1020200074353A
Other languages
Korean (ko)
Inventor
김상운
박승현
Original Assignee
김상운
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김상운 filed Critical 김상운
Priority to KR1020200074353A priority Critical patent/KR102178145B1/en
Application granted granted Critical
Publication of KR102178145B1 publication Critical patent/KR102178145B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay
    • C04B14/106—Kaolin
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
    • C04B14/365—Gypsum
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
    • C04B16/082—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons other than polystyrene based, e.g. polyurethane foam
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/146—Silica fume
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
    • C04B20/008—Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72—Repairing or restoring existing buildings or building materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Architecture (AREA)
  • Combustion & Propulsion (AREA)
  • Nanotechnology (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The present invention relates to a mortar composition for section repair, comprising: 10 to 60 parts by weight of fine furnace slag powder; 10 to 60 parts by weight of fly ash; 3 to 8 parts by weight of silica fume; 5 to 30 parts by weight of metakaolin; 2 to 10 parts by weight of gypsum; 5 to 20 parts by weight of polyvinyl alcohol powder; 10 to 40 parts by weight of nanoceramic particles; 1 to 10 parts by weight of a stabilizer; 3 to 15 parts by weight of an antioxidant; 1 to 10 parts by weight of a thickener; and 0.01 to 10 parts by weight of a high-performance water reducing agent, based on 100 parts by weight of cement, and a section repair method using the same. The mortar composition for section repair according to the present invention has the effect of improving the working environment, reducing environmental pollution, and having a strength equal to or higher than that of conventional cement.

Description

단면보수용 모르타르 조성물 및 이를 이용한 단면보수공법{Mortar Composition for Repair Section and Constructing Methods Using Thereof}Mortar Composition for Repair Section and Constructing Methods Using Thereof}

본 발명은 단면보수용 모르타르 조성물 및 이를 이용한 단면 보수공법에 관한 것으로서, 보다 상세하게는 건축물의 보수, 보강, 절개면, 사면정리, 교량, 도로개량, 터널, 댐 등 각종 토목 건축공사를 포함하는 모든 건축공사에서 적용 가능한 단면보수용 모르타르 조성물 및 이를 이용한 단면 보수공법에 관한 것이다.The present invention relates to a mortar composition for cross-section repair and a cross-section repair method using the same, and in more detail, including various civil construction works such as repair, reinforcement, cut surface, slope clearance, bridge, road improvement, tunnel, dam, etc. It relates to a mortar composition for cross-section repair applicable to all construction works and a cross-section repair method using the same.

일반적으로 교량의 바닥판, 도로의 노면 및 건물의 외벽과 같이 부식이나 침식이 많이 일어나는 부위를 보수 및/또는 보강하기 위한 보수공사에는 조강 포틀랜드 시멘트가 사용되고 있다.In general, crude steel Portland cement is used for repair work for repairing and/or reinforcing areas where corrosion or erosion occurs a lot, such as a bridge deck, road surface, and exterior wall of a building.

조강 포틀랜드 시멘트는 일반 시멘트에 비하여 시공성이 우수한 장점이 있으나, 투수성이 높아 염화물이나 수분의 침투가 발생하여 콘크리트가 부식되는 문제가 있다.Crude steel Portland cement has the advantage of superior workability compared to general cement, but it has a problem that the concrete is corroded due to the penetration of chloride or moisture due to its high water permeability.

특히, 조강 포틀랜드 시멘트는 그 특성상 콘크리트가 경화되는 양생시간이 오래 소요되기 때문에 작업의 특성상 짧은 시간 내에 마무리하여야 하는 긴급 보수공사에 사용하기 곤란한 점이 있다.In particular, crude Portland cement is difficult to use for emergency repair work that must be completed within a short time due to the nature of the work because it takes a long curing time for the concrete to harden.

최근 긴급 보수공사에 사용되는 조강 포틀랜드 시멘트의 단점을 보완하기 위해 콘크리트에 폴리머 에멀젼을 첨가한 폴리머 시멘트 콘크리트의 사용이 점차 증가하고 있다.Recently, the use of polymer cement concrete in which a polymer emulsion is added to concrete is gradually increasing to compensate for the shortcomings of crude Portland cement used in emergency repair work.

그러나 기존 폴리머 시멘트 콘크리트는 고가의 폴리머 디스퍼젼을 사용함으로써 공사비의 상승 원인을 제공한다.However, the existing polymer cement concrete provides a cause of increase in construction cost by using expensive polymer dispersion.

또한, 초속경 폴리머 시멘트 콘크리트는 그 재료 자체의 특성으로 인해 초기 수분 증발이 신속이 진행되어 초기 플라스틱 균열이 발생할 가능성이 있고, 건조 수축 및 수화열이 높아 균열발생이 용이하다.In addition, due to the characteristics of the material itself, the super-fast-hardening polymer cement concrete may cause initial plastic cracking due to rapid evaporation of moisture in the initial stage, and high drying shrinkage and heat of hydration may cause cracking.

이러한 문제점을 극복하기 위하여, 대한민국특허 제10-1512962호에는 시멘트 100중량부를 기준으로, 시멘트 결합재 7 내지 25중량부; 잔골재 35 내지 1,000중량부; 굵은골재 25 내지 1,000중량부; 감수제 0.05 내지 3중량부; 애쉬 10 내지 30중량부; 칼슘설포알루미네이트 3 내지 15중량부; 메틸메타아크릴레이트 3 내지 15중량부; 고기능 파우더 5 내지 10중량부; 보습제 5 내지 15중량부; 보습보조제 1 내지 5중량부; 광물 5 내지 10중량부; 실리카퓸 3 내지 8중량부; 및 슬래그 5 내지 20중량부를 포함하는 모르타르 조성물이 개시되어 있다.In order to overcome this problem, Korean Patent No. 10-1512962 discloses, based on 100 parts by weight of cement, 7 to 25 parts by weight of a cement binder; 35 to 1,000 parts by weight of fine aggregate; 25 to 1,000 parts by weight of coarse aggregate; 0.05 to 3 parts by weight of a water reducing agent; 10 to 30 parts by weight of ash; 3 to 15 parts by weight of calcium sulfoaluminate; 3 to 15 parts by weight of methyl methacrylate; 5 to 10 parts by weight of high-functional powder; 5 to 15 parts by weight of a moisturizer; 1 to 5 parts by weight of a moisturizing aid; 5 to 10 parts by weight of mineral; 3 to 8 parts by weight of silica fume; And a mortar composition comprising 5 to 20 parts by weight of slag is disclosed.

또한, 신속한 경화를 위해 급결제를 사용하여 콘크리트를 경화시키는 방법을 사용할 수 있다.In addition, it is possible to use a method of curing concrete using a rapid setting agent for rapid curing.

한편, 현재 국내에서 일반적으로 사용되는 급결제로는 소듐실리케이트 및/또는 포타슘실리케이트를 주성분으로 하는 무기염계 급결제가 있고, 하소한 명반석으로 수산화칼슘과 반응하여 칼슘알루미네이트 수화물, 에트링가이트 등을 생성시켜 시멘트를 급결시키는 급경성 광물을 포함하는 급결제가 있으며, 칼슘알루미네이트 및/또는 칼슘설포알루미네이트계를 포함하는 시멘트계 급결제가 있다.On the other hand, current quick-setting agents commonly used in Korea include inorganic salt-based quick-setting agents containing sodium silicate and/or potassium silicate as the main component, and react with calcium hydroxide with calcined alum to produce calcium aluminate hydrate, ethringite, etc. There is a quick-setting agent containing a rapidly hardening mineral to rapidly set the cement, and there is a cement-based quick-setting agent containing calcium aluminate and/or calcium sulfoaluminate.

여기서, 상기 시멘트계 급결제는 전술한 무기염계 및 급경성 광물을 포함하는 급결제 보다 장기 강도가 우수하다. Here, the cement-based quick-setting agent is superior in long-term strength than the above-described rapid-setting agent containing inorganic salt-based and rapid-setting minerals.

하지만, 상기 시멘트계 급결제는 알칼리성을 띄므로 이를 다량 사용하면 폐쇄공간 등의 특정장소에서 작업하기 곤란하고, 주변토양을 오염시킬 가능성이 있다.However, since the cement-based rapid setting agent is alkaline, it is difficult to work in a specific place, such as a closed space, if a large amount of it is used, and there is a possibility of contaminating the surrounding soil.

본 발명은 상기와 같은 문제점을 해결하기 위해 창출한 것으로서, 작업환경을 개선하고, 환경오염을 감소시키면서도 종래 시멘트 조성물과 대등하거나 그 이상의 강도를 갖는 단면보수용 모르타르 조성물을 제공하고자 한다.The present invention has been created in order to solve the above problems, and aims to provide a mortar composition for cross-section repair having a strength equal to or higher than that of a conventional cement composition while improving the working environment and reducing environmental pollution.

본 발명은The present invention

시멘트 100중량부 기준으로,Based on 100 parts by weight of cement,

고로슬래그 미분말 10 내지 60중량부;10 to 60 parts by weight of blast furnace slag fine powder;

플라이애시 10 내지 60중량부;10 to 60 parts by weight of fly ash;

실리카퓸 3 내지 8중량부;3 to 8 parts by weight of silica fume;

메타카올린 5 내지 30중량부;5 to 30 parts by weight of metakaolin;

석고 2 내지 10중량부;2 to 10 parts by weight of gypsum;

폴리비닐알코올 분말 5 내지 20중량부;5 to 20 parts by weight of polyvinyl alcohol powder;

나노세라믹 입자 10 내지 40중량부;10 to 40 parts by weight of nanoceramic particles;

안정제 1 내지 10중량부;1 to 10 parts by weight of a stabilizer;

산화방지제 3 내지 15중량부;3 to 15 parts by weight of an antioxidant;

증점제 1 내지 10중량부; 및 1 to 10 parts by weight of a thickener; And

고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물을 제공한다.It provides a mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent.

또한, 본 발명은 In addition, the present invention

보강하고자 하는 보강면의 이물질을 제거한 후 청소하는 이물질 제거-청소단계; Foreign matter removal-cleaning step of removing foreign matter from the reinforcing surface to be reinforced and cleaning;

상기 이물질 제거-청소단계가 종료된 보강면에 시멘트 100중량부 기준으로, 고로슬래그 미분말 10 내지 60중량부, 플라이애시 10 내지 60중량부, 실리카퓸 3 내지 8중량부, 메타카올린 5 내지 30중량부, 석고 2 내지 10중량부, 폴리비닐알코올 분말 5 내지 20중량부, 나노세라믹 입자 10 내지 40중량부, 안정제 1 내지 10중량부, 산화방지제 3 내지 15중량부, 증점제 1 내지 10중량부, 및 고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물을 물과 혼합한 뒤 타설하는 타설단계; 및 The foreign matter removal-cleaning step is completed, based on 100 parts by weight of cement, 10 to 60 parts by weight of blast furnace slag fine powder, 10 to 60 parts by weight of fly ash, 3 to 8 parts by weight of silica fume, 5 to 30 parts by weight of metakaolin Parts, 2 to 10 parts by weight of gypsum, 5 to 20 parts by weight of polyvinyl alcohol powder, 10 to 40 parts by weight of nanoceramic particles, 1 to 10 parts by weight of stabilizer, 3 to 15 parts by weight of antioxidant, 1 to 10 parts by weight of thickener, And a pouring step of pouring after mixing a mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent with water; And

상기 타설단계가 종료된 후 양생하는 양생단계를 포함하는 단면보수용 모르타르 조성물의 시공방법을 제공한다.It provides a construction method of a mortar composition for cross-section repair comprising a curing step of curing after the pouring step is completed.

본 발명에 따른 단면보수용 모르타르 조성물은 작업환경을 개선하고, 환경오염을 감소시키면서도 종래 시멘트와 대등하거나 그 이상의 강도를 갖도록 하는 효과가 있다.The mortar composition for cross-section repair according to the present invention has the effect of improving the working environment and reducing environmental pollution while having a strength equal to or greater than that of conventional cement.

이하, 본 발명을 구체적으로 설명한다.Hereinafter, the present invention will be described in detail.

한 가지 관점에서, 본 발명은 시멘트 100중량부 기준으로, 고로슬래그 미분말 10 내지 60중량부; 플라이애시 10 내지 60중량부; 실리카퓸 3 내지 8중량부; 메타카올린 5 내지 30중량부; 석고 2 내지 10중량부; 폴리비닐알코올 분말 5 내지 20중량부; 나노세라믹 입자 10 내지 40중량부; 안정제 1 내지 10중량부; 산화방지제 3 내지 15중량부; 증점제 1 내지 10중량부; 및 고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물을 제공한다.In one aspect, the present invention, based on 100 parts by weight of cement, 10 to 60 parts by weight of fine blast furnace slag powder; 10 to 60 parts by weight of fly ash; 3 to 8 parts by weight of silica fume; 5 to 30 parts by weight of metakaolin; 2 to 10 parts by weight of gypsum; 5 to 20 parts by weight of polyvinyl alcohol powder; 10 to 40 parts by weight of nanoceramic particles; 1 to 10 parts by weight of a stabilizer; 3 to 15 parts by weight of an antioxidant; 1 to 10 parts by weight of a thickener; And it provides a mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent.

다른 관점에서, 본 발명은 보강하고자 하는 보강면의 이물질을 제거한 후 청소하는 이물질 제거-청소단계; 상기 이물질 제거-청소단계가 종료된 보강면에 시멘트 100중량부 기준으로, 고로슬래그 미분말 10 내지 60중량부, 플라이애시 10 내지 60중량부, 실리카퓸 3 내지 8중량부, 메타카올린 5 내지 30중량부, 석고 2 내지 10중량부, 폴리비닐알코올 분말 5 내지 20중량부, 나노세라믹 입자 10 내지 40중량부, 안정제 1 내지 10중량부, 산화방지제 3 내지 15중량부, 증점제 1 내지 10중량부, 및 고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물을 물과 혼합한 뒤 타설하는 타설단계; 및 상기 타설단계가 종료된 후 양생하는 양생단계를 포함하는 단면보수용 모르타르 조성물의 시공방법을 제공한다.In another aspect, the present invention is a foreign material removal-cleaning step of cleaning after removing the foreign material of the reinforcing surface to be reinforced; The foreign matter removal-cleaning step is completed, based on 100 parts by weight of cement, 10 to 60 parts by weight of blast furnace slag fine powder, 10 to 60 parts by weight of fly ash, 3 to 8 parts by weight of silica fume, 5 to 30 parts by weight of metakaolin Parts, 2 to 10 parts by weight of gypsum, 5 to 20 parts by weight of polyvinyl alcohol powder, 10 to 40 parts by weight of nanoceramic particles, 1 to 10 parts by weight of stabilizer, 3 to 15 parts by weight of antioxidant, 1 to 10 parts by weight of thickener, And a pouring step of pouring after mixing a mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent with water; And it provides a construction method of a mortar composition for cross-section repair comprising a curing step of curing after the completion of the pouring step.

본 발명에 따른 단면보수용 모르타르 조성물은 건축물 및/또는 토목공사, 교량, 도로개량, 터널, 댐 등 각종 토목 건축공사 또는 이들의 보수공사 등을 포함하는 모든 공사에 적용가능하다.The mortar composition for cross-section repair according to the present invention can be applied to all constructions including various civil construction works such as buildings and/or civil works, bridges, road improvements, tunnels, dams, or repair work thereof.

본 발명에 따른 시멘트는 당업계에서 통상적으로 사용되는 시멘트라면 특별히 한정되지 않지만, 바람직하게는 일반 포틀랜드 시멘트 또는 슬래그시멘트, 초미분말시멘트, 초속경 시멘트 등의 특수 시멘트 등을 사용할 수 있다.The cement according to the present invention is not particularly limited as long as it is a cement commonly used in the art, but preferably, a special cement such as general Portland cement or slag cement, ultra-fine powder cement, and ultra-fast cement can be used.

상기 시멘트의 바람직한 분말도는 3,200 내지 6,500cm2/g인 것이 좋다.The preferred powderiness of the cement is preferably 3,200 to 6,500cm 2 /g.

본 발명에 따른 모르타르 조성물, 특정적으로 단면보수용 모르타르 조성물을 구성하는 시멘트 외 나머지 성분들의 함량은 시멘트 100중량부 기준으로 한다.The mortar composition according to the present invention, specifically, the content of the remaining components other than the cement constituting the mortar composition for cross-section repair is based on 100 parts by weight of cement.

본 발명에 따른 고로슬래그 미분말은 유해물질의 용출을 배제시키면서 유동성을 향상시키고, 충분한 압축강도 및 휨강도를 가질 수 있도록 하기 위한 것으로서, 이러한 목적을 갖는 당업계의 통상적인 고로슬래그 미분말이라면 어떠한 것을 사용하여도 무방하지만, 추천하기로는 분말도는 3,700 내지 4,000cm2/g, 바람직하게는 약 3,850cm2/g이고, 밀도는 2.9 내지 3.5g/cm3, 바람직하게는 약 3.1g/cm3인 고로슬래그를 사용하는 것이 좋다.The blast furnace slag powder according to the present invention is to improve fluidity while excluding the elution of harmful substances and to have sufficient compressive strength and flexural strength, and any conventional blast furnace slag powder in the art for this purpose is used. fineness is also supposed mubang but like is 3,700 to 4,000cm 2 / g, preferably from about 3,850cm 2 / g, and the density is 2.9 to 3.5g / cm 3, preferably from about 3.1g / cm 3 of the blast furnace It is better to use slag.

바람직한 고로슬래그 미분말의 사용량은 특별히 한정되는 것은 아니지만, 추천하기로는 시멘트 100중량부 기준으로 10 내지 60중량부인 것이 좋다.The preferred amount of the fine blast furnace slag powder used is not particularly limited, but it is recommended that it is 10 to 60 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 플라이애시는 단면보수용 모르타르 조성물에 적량 혼합하여 사용하면 가공성이 개선되고 경화열이 완화됨과 더불어 장기적인 강도 및 수밀성을 향상시킬 수 있다.If the fly ash according to the present invention is mixed and used in an appropriate amount in the mortar composition for cross-section repair, workability is improved, curing heat is alleviated, and long-term strength and watertightness can be improved.

이에, 상기 플라이애시는 전술한 목적으로 사용되는 플라이애시라면 특별히 한정되지 않지만, 바람직하게는 미분탄을 연소하는 보일러의 연도 가스로부터 집진기로 채취한 석탄재를 사용하는 것이 좋다.Accordingly, the fly ash is not particularly limited as long as it is a fly ash used for the above-described purpose, but it is preferable to use a coal ash collected by a dust collector from the flue gas of a boiler burning pulverized coal.

상기 플라이애시의 입자 크기는 시멘트와 같은 정도이고, 알루미나와 실리카가 주성분이다.The particle size of the fly ash is about the same as that of cement, and alumina and silica are the main components.

특정 양태로서, 본 발명에 따른 플라이애시는 미분쇄한 플라이애시를 사용할 수 있는바, 상기 미분쇄한 플라이애시는 미분쇄하지 않은 플라이애시를 사용하는 것 보다 향상된 고강도성 및/또는 유동성을 제공한다.In a specific embodiment, the fly ash according to the present invention may use pulverized fly ash, and the pulverized fly ash provides improved high strength and/or fluidity than that of using non-pulverized fly ash. .

이때, 본 발명에 따른 미분쇄한 플라이애시의 분말도는 3,000 내지 3,800cm2/g, 바람직하게는 3,000 내지 3,800cm2/g, 보다 바람직하게는 3,700cm2/g 미만이고, 밀도는 1.5 내지 2.8g/cm3, 바람직하게는 약 2.2g/cm3인 것이 좋다.At this time, the finely ground fly ash according to the present invention has a powderiness of 3,000 to 3,800 cm 2 /g, preferably 3,000 to 3,800 cm 2 /g, more preferably less than 3,700 cm 2 /g, and a density of 1.5 to It is good that it is 2.8g/cm 3 , preferably about 2.2g/cm 3 .

바람직한 플라이애시의 사용량은 시멘트 100중량부 기준으로 10 내지 60중량부인 것이 좋다.The preferred amount of fly ash is 10 to 60 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 실리카퓸(silica fume)은 금속 실리콘 또는 규소 합금을 제조할 때에 발생하는 부산물로서, 그 형상은 구상이고, 화학 성분은 대부분 이산화규소(SiO2)이다. 이것을 모르타르 조성물 등에 첨가하면 점성이 증가하고 높은 압축 강도가 얻어진다. Silica fume according to the present invention is a by-product generated when preparing metallic silicon or a silicon alloy, its shape is spherical, and its chemical component is mostly silicon dioxide (SiO 2 ). When this is added to a mortar composition or the like, viscosity increases and high compressive strength is obtained.

바람직한 실리카퓸의 사용량은 시멘트 100중량부 기준으로 3 내지 8중량부인 것을 추천한다.It is recommended that silica fume is preferably used in an amount of 3 to 8 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 메타카올린은 당업계의 통상적인 메타카올린을 사용하는 것이 좋고, 그 사용량은 시멘트 100중량부 기준으로 5 내지 30중량부인 것이 좋다.Metakaolin according to the present invention is preferably a conventional metakaolin in the art, the amount of which is preferably 5 to 30 parts by weight based on 100 parts by weight of cement.

여기서, 상기 메타카올린은 수화 초기 단계에서 반응속도가 신속하여 초기 강도가 증진되며, 장기에 있어서는 시멘트 수화 과정시 발생하는 Ca(OH)2와 반응하여 C-A-S-H(Calcium aluminum silicate hydroxide) 수화물을 생성함으로서, 일반적인 시멘트를 이용하여 제조한 콘크리트와 비교하여 공극을 보다 치밀하게 하여 강도를 증진시킨다.Here, the metakaolin reacts with Ca(OH) 2 generated during the cement hydration process in a long-term to increase the initial strength due to a rapid reaction rate in the initial stage of hydration, thereby producing a calcium aluminum silicate hydroxide (CASH) hydrate, Compared with concrete manufactured using general cement, the pores are made denser to increase the strength.

본 발명에 따른 석고는 조성물의 초기강도 발현을 위한 것으로서, 그 사용량은 시멘트 100중량부 기준으로 2 내지 10중량부인 것이 좋다.The gypsum according to the present invention is for expressing the initial strength of the composition, and its usage is preferably 2 to 10 parts by weight based on 100 parts by weight of cement.

바람직한 석고로는 무수석고를 사용하는 것이 좋다.It is recommended to use anhydrous gypsum as a preferred plaster.

이때, 상기 무수석고는 초기강도는 향상될 수 있지만, 장기강도 증진을 저하하게 되는 원인을 제공할 수 있으므로, 사용자는 이점을 고려하여 그 사용량을 조절하여야 한다.At this time, the initial strength of the anhydrous gypsum may be improved, but since it may provide a cause of deteriorating the long-term strength enhancement, the user should adjust the amount of use in consideration of the advantage.

특정적으로, 본 발명에 따른 모르타르 조성물은 석고의 초기강도 및 에트린자이트의 생성을 더욱더 활성화하기 위한 촉진제로서, 가리명반을 더 포함할 수 있다.Specifically, the mortar composition according to the present invention may further include alum alum as an accelerator for further activating the initial strength of gypsum and the production of ethrinzite.

여기서, 상기 가리명반의 사용량은 특별히 한정되지 않지만, 추천하기로는 시멘트 100중량부 기준으로 1 내지 10중량부인 것이 바람직하다.Here, the amount of the alum is not particularly limited, but is preferably 1 to 10 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 폴리비닐알코올 분말은 모르타르 조성물, 특정적으로 단면보수용 모르타르 조성물의 경량성과 강성을 제공하기 위한 것으로서, 이러한 목적을 갖는 당업계의 통상적인 폴리비닐알코올 분말이라면 특별히 한정되지 않지만, 바람직하게는 0.1 내지 10㎛인 기공을 0.05 내지 0.4cc/g의 범위로 포함하는 폴리비닐알코올 분말을 사용하는 것이 좋고, 그 사용량은 시멘트 100중량부 기준으로 5 내지 20중량부인 것을 추천한다.The polyvinyl alcohol powder according to the present invention is to provide the light weight and rigidity of a mortar composition, specifically a mortar composition for cross-section repair, and is not particularly limited if it is a conventional polyvinyl alcohol powder in the art having such a purpose, but is preferred. It is preferable to use a polyvinyl alcohol powder containing 0.1 to 10 μm pores in the range of 0.05 to 0.4 cc/g, and it is recommended that the amount is 5 to 20 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 나노세라믹 입자는 모르타르 조성물의 양생 중에 보수면의 표면으로 부상하여 치밀하고 경도가 높은 표면을 형성하기 때문에, 수증기와 기타 기체, 액체의 투과를 방지함은 물론, 내습성, 내구성, 내후성, 내충격성, 내약품성이 향상된다.The nanoceramic particles according to the present invention rise to the surface of the repair surface during curing of the mortar composition to form a dense and high hardness surface, thus preventing the penetration of water vapor and other gases and liquids, as well as moisture resistance, durability, Weather resistance, impact resistance, and chemical resistance are improved.

상기 나노세라믹 입자의 사용량은 시멘트 100중량부를 기준으로 10 내지 40중량부인 것이 좋다.The amount of the nanoceramic particles is preferably 10 to 40 parts by weight based on 100 parts by weight of cement.

바람직한 나노세라믹 입자는 실리콘카바이드, 알루미나, 실리카, 지르코니아-실리카, ZnO, TiO2 및/또는 CaCO3가 포함된다. Preferred nanoceramic particles include silicon carbide, alumina, silica, zirconia-silica, ZnO, TiO 2 and/or CaCO 3 .

이들 세라믹입자는 평균 입경이 나노 범위인 것이 바람직한데, 구체적으로 상기 실리콘카바이드의 평균 입경은 300 내지 500nm, 상기 알루미나의 평균 입경은 500 내지 1000nm, 상기 실리카의 평균 입경은 700 내지 1500nm, 상기 지르코니아-실리카의 평균 입경은 500 내지 1000nm, 상기 ZnO의 평균 입경은 500 내지 1000nm, 상기 TiO2의 평균 입경은 100 내지 300nm, 그리고 CaCO3의 평균 입경은 500 내지 1000nm인 것이 바람직하다.These ceramic particles preferably have an average particle diameter in the nano range, specifically, the average particle diameter of the silicon carbide is 300 to 500 nm, the average particle diameter of the alumina is 500 to 1000 nm, the average particle diameter of the silica is 700 to 1500 nm, and the zirconia- The average particle diameter of silica is 500 to 1000 nm, the average particle diameter of ZnO is 500 to 1000 nm, the average particle diameter of TiO 2 is 100 to 300 nm, and the average particle diameter of CaCO 3 is preferably 500 to 1000 nm.

이 중에서도 실리콘카바이드는 천연광물로 존재하지 않으므로 인공적으로 합성하며, 고온에서의 화학적 안정성 및 내식성이 뛰어나고 높은 경도를 갖는다.Among them, silicon carbide does not exist as a natural mineral, so it is artificially synthesized, has excellent chemical stability and corrosion resistance at high temperatures, and has high hardness.

본 발명에 따른 안정제는 모르타르 조성물의 각 구성성분을 보다 긴 시간 동안 안정적으로 보관하기 위한 것으로서, 이러한 목적을 갖는 안정제라면 어떠한 것을 사용하여도 무방하지만, 바람직하게는 펙틴, 아라비아검, 카라야검, 트라가칸검, 로커스트빈검, 구아검, 타마린드검, 타라검, 담마검, 한천, 카라기난, 알긴산, 잔탄, 덱스트란, 글루칸, 젤라틴, 카제인, 셀루로오스 유도체 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 사용하는 것이 좋고, 그 사용량은 시멘트 100중량부 기준으로 1 내지 10중량부인 것을 추천한다.The stabilizer according to the present invention is for stably storing each component of the mortar composition for a longer period of time, and any stabilizer having this purpose may be used, but preferably pectin, gum arabic, gum karaya, and tra Gacan gum, locust bean gum, guar gum, tamarind gum, tara gum, damma gum, agar, carrageenan, alginic acid, xanthan, dextran, glucan, gelatin, casein, cellulose derivatives, or at least one mixture selected from these It is good to do, and it is recommended that the amount used is 1 to 10 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 산화방지제는 모르타르 조성물의 산화를 방지하기 위한 것이다.The antioxidant according to the present invention is for preventing oxidation of the mortar composition.

바람직한 산화방지제는 아민계, 비스페놀계, 모노페놀계 및 유황계 산화방지제, 바람직하게는 2.2-메틸렌비스(4-메틸-6-t-부틸페놀)[2 . 2 - M e t h y l e n e b i s ( 4 - m e t h y l - 6 - t - b u t y l p h e n o l )], 2.6-디-t-부틸-4-메틸페놀(2.6-di -t-Butyl-4-methylphenol) 또는 이들의 혼합물이 사용될 수 있고, 그 사용량은 시멘트 100중량부 기준으로 3 내지 15중량부인 것이 좋다.Preferred antioxidants are amine-based, bisphenol-based, monophenol-based and sulfur-based antioxidants, preferably 2.2-methylenebis(4-methyl-6-t-butylphenol)[2. 2-M ethylenebis (4-methyl-6-t-butylphenol )], 2.6-di-t-butyl-4-methylphenol (2.6-di -t-Butyl-4-methylphenol) or mixtures thereof may be used, , Its usage is preferably 3 to 15 parts by weight based on 100 parts by weight of cement.

본 발명에 따른 증점제는 모르타르 조성물의 점도를 조절하여 시공시 사용을 용이하게 하기 위한 것으로서, 이러한 목적을 위해 당업계에서 통상적으로 사용되는 증점제라면 특별히 한정되지 않지만, 바람직하게는 하이드록시 에틸 셀룰로오즈(HydroxyEthyl Cellulose), 소수성 우레탄변성계 증점제 또는 이들의 혼합물을 사용하는 것을 추천한다.The thickener according to the present invention is to adjust the viscosity of the mortar composition to facilitate use during construction, and is not particularly limited as long as it is a thickener commonly used in the art for this purpose, but is preferably hydroxy ethyl cellulose (HydroxyEthyl Cellulose), a hydrophobic urethane-modified thickener, or a mixture thereof is recommended.

상기 증점제의 사용량은 시멘트 100중량부를 기준으로 1 내지 10중량부인 것이 바람직하다.The amount of the thickener is preferably 1 to 10 parts by weight based on 100 parts by weight of cement.

여기서, 상기 증점제로 사용되는 하이드록시 에틸 셀룰로오즈는 보수성을 가질 수 있다.Here, hydroxy ethyl cellulose used as the thickener may have water retention.

본 발명에 따른 고성능 감수제는 모르타르 조성물, 특정적으로 단면보수용 모르타르 조성물을 시공을 할 때 그 속에 있는 작은 공기 거품을 고르게 하기 위하여 사용하는 혼화제로서, 거품을 일으키는 성질이 좋아, 시멘트 조성물 중에 작은 기포를 고르게 발생시켜 내동결 융해성, 내식성, 내구성 등을 개선한다.The high-performance water reducing agent according to the present invention is an admixture used to even out the small air bubbles in the mortar composition, specifically the mortar composition for cross-section repair, and has good foaming properties. It generates evenly to improve freezing and melting resistance, corrosion resistance, and durability.

특히, 상기 감수제는 미리 믹싱된 베이스 시멘트 등에 첨가하여 이것을 교반함으로써 더 부드럽게 하며, 시멘트의 품질을 저하시키지 않고 시멘트의 시공성을 개선할 목적으로 이용된다.In particular, the water reducing agent is added to the base cement mixed in advance and is further softened by stirring it, and is used for the purpose of improving the workability of the cement without deteriorating the quality of the cement.

더욱이, 상기 감수제는 시멘트 조성물의 유동성을 좋게 하여 부어 넣기 작업을 용이하게 하고, 굳은 콘크리트의 열전도율을 저하시키며, 수밀성을 향상시키는 등 2차적인 효과도 있다. Moreover, the water reducing agent has secondary effects such as improving the fluidity of the cement composition to facilitate pouring, lowering the thermal conductivity of hardened concrete, and improving watertightness.

이때, 시멘트 조성물에 사용되는 감수제의 감수율은 일반적으로 10 내지 15%정도이나 그 중 감수율이 20 내지 30%인 것을 본 발명에서는 고성능 감수제라 통칭한다.At this time, the water reducing agent used in the cement composition generally has a water reducing rate of about 10 to 15%, but the water reducing rate of which is 20 to 30% is collectively referred to as a high-performance water reducing agent in the present invention.

바람직한 고성능 감수제는 나프탈렌형, 멜라민형, 폴리카르복실산형, 아미노 술폰산형 감수제 또는 이들의 혼합물로 이루어진 것이 좋고, 그 함량은 특별히 제한되지 않고 필요에 따라 적절하게 조절할 수 있으며, 예를 들어 시멘트 100중량부 기준으로 0.01 내지 10중량부를 사용할 수 있다.Preferred high performance water reducing agents are preferably made of naphthalene type, melamine type, polycarboxylic acid type, amino sulfonic acid type water reducing agent, or a mixture thereof, and the content thereof is not particularly limited and can be appropriately adjusted as needed, for example 100 weight of cement 0.01 to 10 parts by weight may be used based on parts.

이때, 상기 나프탈렌형 감수제로서 대표적인 것은 변성리그닌, 알킬아릴술폰산 및 활성지속폴리머, 폴리알킬아일슬폰산염과 반응성고분자, 알킬아릴술폰산염고축합물, 슬폰산기카르복실기 함유 다원폴리머, 알킬나프탈렌슬폰산염, 알킬아릴술폰산염변성리그닌공축합물과 변성리그닌, 리그닌유도체와 알킬아릴술포네이트 또는 이들로부터 선택된 적어도 하나 이상을 들을 수 있다.At this time, typical examples of the naphthalene-type water reducing agent are modified lignin, alkylaryl sulfonic acid and active-persisting polymer, polyalkyl isyl sulfonic acid and reactive polymer, alkylaryl sulfonate high condensation product, sulfonic acid group carboxyl group-containing polypolymer, alkyl naphthalene sulfonic acid, alkylaryl Sulfonate-modified lignin cocondensates and modified lignin, lignin derivatives and alkylarylsulfonates, or at least one or more selected from these.

상기 멜라민형 감수제로서 대표적인 것은 변성메칠멜라민축합물과 수용성특수고분자화합물, 슬폰화멜라민고축합물 또는 이들로부터 선택된 하나 이상의 혼합물을 들을 수 있다.Representative examples of the melamine-type water reducing agent include a modified methyl melamine condensation product, a water-soluble special polymer compound, a sulfonated melamine high condensation product, or one or more mixtures selected from these.

상기 폴리카르복실산형 감수제로서 대표적인 것은 불포화 카르복시산 단량체를 단일 성분으로 포함하는 공중합체 또는 그의 염, 예컨대, 폴리(알킬렌 글리콜)모노아크릴레이트, 폴리(알킬렌 글리콜)모노메타크릴레이트, 무수말레인산 및 스티렌의 공중합체, 아크릴레이트나 메타크릴레이트의 공중합체 및 이들 단량체와 공중합가능한 단량체로부터 유도되는 공중합체 등을 포함할 수 있다.Representative examples of the polycarboxylic acid type water reducing agent include a copolymer containing an unsaturated carboxylic acid monomer as a single component or a salt thereof, such as poly(alkylene glycol) monoacrylate, poly(alkylene glycol) monomethacrylate, maleic anhydride, and It may include a styrene copolymer, an acrylate or methacrylate copolymer, and a copolymer derived from a monomer copolymerizable with these monomers.

상기 아미노 술폰산형 감수제로서 대표적인 것은 방향족아미노슬폰산계 고분자화합물, 방향족고분자축합물과 리그닌슬폰산유도체 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 들을 수 있다.Representative examples of the amino sulfonic acid type water reducing agent include an aromatic amino sulfonic acid-based polymer compound, an aromatic polymer condensate and a lignin sulfonic acid derivative, or at least one or more mixtures selected from these.

또한, 바람직한 고성능 감수제는 나프탈렌형 고성능 감수제를 단독으로 사용하거나 나프탈렌계 고성능 감수제가 80 내지 95중량%이고, 폴리카르복실산형 고성능 감수제가 5 내지 20중량%로 이루어진 혼합조성을 사용하는 것이 좋다.In addition, it is preferable to use a naphthalene-type high-performance water reducing agent alone, or a naphthalene-based high-performance water reducing agent in 80 to 95% by weight, and a polycarboxylic acid-type high-performance water reducing agent in 5 to 20% by weight.

바람직한 고성능 감수제의 사용량은 시멘트 100중량부 기준으로 0.01 내지 10중량부인 것을 추천한다.It is recommended that the amount of the high-performance water reducing agent is preferably 0.01 to 10 parts by weight based on 100 parts by weight of cement.

본 발명에 모르타르 조성물, 특정적으로 단면보수용 모르타르 조성물은 하기의 특정 양태의 부가물을 1종 또는 1종 이상 더 포함할 수 있다.In the present invention, the mortar composition, specifically, the mortar composition for cross-section repair may further include one or more adducts of the following specific embodiments.

특정 양태로서, 본 발명에 따른 모르타르 조성물, 특정적으로 단면보수용 모르타르 조성물은 시멘트 100중량부 기준으로 10 내지 30중량부의 고분자 수지를 더 포함할 수 있다.In a specific embodiment, the mortar composition according to the present invention, specifically, the mortar composition for cross-section repair may further include 10 to 30 parts by weight of a polymer resin based on 100 parts by weight of cement.

여기서, 상기 고분자 수지는 우수한 바인더 물성 및 기계적 물성을 유지하여 타설 후 신속한 경화를 진행하여도 크랙 및 탈락현상을 현저하게 개선될 수 있도록 하기 위한 것으로서, 이러한 목적을 갖는 당업계의 통상적인 고분자 수지라면 특별히 한정되지 않지만, 바람직하게는 폴리비닐리덴플로라이드수지, 아미노기 함유 실록산, 변성실란실리케이트 합성물, 테트라메틸렌디이소시아네이트 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 포함하는 것이 좋다.Here, the polymer resin is to maintain excellent binder properties and mechanical properties so that even if rapid curing after pouring is carried out, cracking and falling off can be remarkably improved, and if it is a conventional polymer resin in the art for this purpose Although not particularly limited, it is preferable to include a polyvinylidene fluoride resin, an amino group-containing siloxane, a modified silane silicate compound, tetramethylene diisocyanate, or at least one or more mixtures selected from these.

다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 신속한 경화를 위하여 시멘트 100중량부 기준으로 5 내지 30중량부의 경화제를 더 포함할 수 있다.In another specific embodiment, the mortar composition for cross-section repair according to the present invention may further include 5 to 30 parts by weight of a hardener based on 100 parts by weight of cement for rapid curing of the composition.

바람직한 경화제로는 2-디에틸아미노에틸아민, N-부틸디에탄올아민, 2-디이소프로필아미노에틸아민, 3-디메틸아미노-1-프로필아민, 3-디에틸아미노프로필아민, 트리에탄올아민, 트리이소프로판올아민, 3-디부틸아미노프로필아민, 트리프로판올아민, 메틸아민, N,N-디메틸 에탄올아민, 사이클로헥실아민, 3-디메틸아미노프로, 헥사메틸렌 디이소시아네이트(HDI), 톨루엔 디이소시아네이트(TDI), 이소포론 디이소시아네이트(IPDI), 4,4' 메틸렌 비스(사이클로 헥실 이소시아네이트), 피마자유, 예를 들면 피마자유, 수소화피마자유 또는 이들로부터 선택된 적어도 하나 이상의 혼합물을 사용하는 것이 좋다.Preferred curing agents include 2-diethylaminoethylamine, N-butyldiethanolamine, 2-diisopropylaminoethylamine, 3-dimethylamino-1-propylamine, 3-diethylaminopropylamine, triethanolamine, and triethanolamine. Isopropanolamine, 3-dibutylaminopropylamine, tripropanolamine, methylamine, N,N-dimethyl ethanolamine, cyclohexylamine, 3-dimethylaminopro, hexamethylene diisocyanate (HDI), toluene diisocyanate (TDI) , Isophorone diisocyanate (IPDI), 4,4' methylene bis (cyclohexyl isocyanate), castor oil, for example castor oil, hydrogenated castor oil, or a mixture of at least one selected from these.

또 다른 특정 양태로서, 본 발명에 따른 모르타르 조성물은 조기강도를 발현하기 위하여 시멘트 100중량부 기준으로 5 내지 20중량부의 폴리아민올을 더 포함할 수 있다.In another specific embodiment, the mortar composition according to the present invention may further include 5 to 20 parts by weight of polyamineol based on 100 parts by weight of cement in order to express early strength.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 양생시 수축을 방지하기 위하여 시멘트 100중량부 기준으로 1 내지 10중량부의 네오펜틸글리콜을 더 포함할 수 있다.As another specific embodiment, the mortar composition for cross-section repair according to the present invention may further include 1 to 10 parts by weight of neopentyl glycol based on 100 parts by weight of cement to prevent shrinkage during curing of the composition.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물에 포함된 성분이 물과 용이하게 혼합되도록 시멘트 100중량부 기준으로 0.1 내지 5중량부의 플라스터(plaster)를 더 포함할 수 있다.In another specific aspect, the mortar composition for cross-section repair according to the present invention may further include 0.1 to 5 parts by weight of a plaster based on 100 parts by weight of cement so that the components included in the composition are easily mixed with water.

여기서, 상기 플라스터의 사용량이 시멘트 100중량부 기준으로 0.5 중량부 미만인 경우는 조성물에 포함된 다양한 성분이 물과 용이하게 혼합되기 어렵고, 5중량부를 초과하는 경우는 강도 및 내화학성 등이 저하되는 문제가 있다.Here, when the amount of the plaster used is less than 0.5 parts by weight based on 100 parts by weight of cement, it is difficult for various components contained in the composition to be easily mixed with water, and when it exceeds 5 parts by weight, strength and chemical resistance are deteriorated. There is.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 강도, 자외선 저항성 및 재료 분리 저항성을 개선하기 위하여 시멘트 100중량부 기준으로 0.1 내지 5중량부의 티타늄옥사이드를 더 포함할 수 있다.As another specific aspect, the mortar composition for cross-section repair according to the present invention may further include 0.1 to 5 parts by weight of titanium oxide based on 100 parts by weight of cement in order to improve strength, UV resistance and material separation resistance.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 강도, 내마모성 및 내화성을 개선하기 위하여 시멘트 100중량부 기준으로 1 내지 15중량부의 깁사이트를 더 포함할 수 있다. In another specific aspect, the mortar composition for cross-section repair according to the present invention may further include 1 to 15 parts by weight of gibbsite based on 100 parts by weight of cement in order to improve strength, abrasion resistance, and fire resistance.

여기서, 상기 깁사이트의 사용량은 1중량부 미만일 경우 성능 개선 효과가 미약할 수 있고, 상기 깁사이트의 사용량이 15중량부를 초과할 경우에는 작업성이 저하되고 제조 원가가 높아져 경제적이지 못하다.Here, when the amount of the gibbsite used is less than 1 part by weight, the performance improvement effect may be weak, and when the amount of the gibbsite used exceeds 15 parts by weight, the workability is lowered and the manufacturing cost is increased, which is not economical.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 강도, 내화성 및 내식성을 개선하기 위하여 시멘트 100중량부 기준으로 0.1 내지 5중량부의 세륨을 더 포함할 수 있다. As another specific aspect, the mortar composition for cross-section repair according to the present invention may further contain 0.1 to 5 parts by weight of cerium based on 100 parts by weight of cement in order to improve strength, fire resistance and corrosion resistance.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 점성조절을 위해서 시멘트 100중량부 기준으로 1 내지 10중량부의 옥수수 스타치(corn starch)를 더 포함할 수 있다.As another specific aspect, the mortar composition for cross-section repair according to the present invention may further include 1 to 10 parts by weight of corn starch based on 100 parts by weight of cement for viscosity control.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 콘크리트 표면 내부로 침투하여 염소계 유해 물질을 분해하여 제거함으로서 수밀성을 강화하기 위하여 시멘트 100중량부 기준으로 1 내지 10중량부의 토르말린(NaX3Al6(BO3)Si6O18(OH)4)을 더 포함할 수 있다.In another specific embodiment, the mortar composition for cross-section repair according to the present invention penetrates into the concrete surface and decomposes and removes chlorine-based harmful substances, thereby reinforcing watertightness by 1 to 10 parts by weight of tourmaline (NaX 3 Al 6 (BO 3 )Si 6 O 18 (OH) 4 ) may be further included.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 습윤강도 및 마모저항성을 강화하기 위하여 시멘트 100중량부 기준으로 1 내지 10중량부의 진크암모늄클로라이드를 더 포함할 수 있다.As another specific embodiment, the mortar composition for cross-section repair according to the present invention may further include 1 to 10 parts by weight of zinc ammonium chloride based on 100 parts by weight of cement in order to enhance wet strength and abrasion resistance.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 통기성 및 흡유성 향상을 위하여 천매암 분말을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함할 수 있는데, 상기 천매암은 점토질의 퇴적층이 열수변질에 의한 가수분해 작용 및 변성, 풍화 부식 등의 과정을 거쳐 생성된 변성암의 일종으로 주 성분이 실리카, 알루미나 및 금속산화물을 포함하고 있으며, 내부에 여러 크기의 공극을 포함하고 비석(zeolite)과 거의 유사한 공극률을 갖으면서도 거포의 분율이 큰 특징을 갖고 있어 이를 단면보수용 모르타르 조성물에 포함시키면, 상기와 같은 효과를 갖게 되며, 바람직한 천매암 분말의 평균입도는 3 내지 30㎛ 이다.As another specific embodiment, the mortar composition for cross-section repair according to the present invention may further include 1 to 5 parts by weight of cheonmaeam powder based on 100 parts by weight of cement in order to improve the breathability and oil absorption of the composition. The sedimentary layer is a type of metamorphic rock that is formed through the process of hydrolysis, metamorphism, weathering and corrosion due to hydrothermal alteration. The main components contain silica, alumina, and metal oxides, and contain pores of various sizes inside. zeolite) has a porosity that is almost similar to that of the pores, but has a large fraction of the foam, and when it is included in the mortar composition for cross-section repair, the same effect will be obtained, and the average particle size of the preferred phyllite powder is 3 to 30 μm.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 단면보수용 모르타르 조성물이 시공되는 시공면의 공극으로 침투하여 조직을 치밀하게 유지함으로써 단면보수용 모르타르 조성물의 들뜸방지와 내구성 및 부착 강도를 향상시키기 위하여 보크사이트 분말을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함할 수 있는데, 바람직한 보크사이트 분말의 평균입도는 1 내지 10㎛ 이다.In another specific aspect, the mortar composition for cross-section repair according to the present invention penetrates into the voids of the construction surface on which the mortar composition for cross-section repair is installed to keep the structure dense, thereby preventing lift and durability and adhesion strength of the mortar composition for cross-section repair. In order to improve the bauxite powder may further include 1 to 5 parts by weight based on 100 parts by weight of cement, the average particle size of the preferred bauxite powder is 1 to 10㎛.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 크랙발생 및 박리방지를 위하여 디부틸프탈레이트를 시멘트 100중량부 기준으로 2 내지 6중량부로 더 포함할 수 있다.In another specific aspect, the mortar composition for cross-section repair according to the present invention may further include 2 to 6 parts by weight of dibutylphthalate based on 100 parts by weight of cement in order to prevent cracking and peeling of the composition.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 강도, 침투력, 및 발수성 등을 향상시키기 위하여 3-메르캅토프로필트리메톡시실란을 시멘트 100중량부 기준으로 1 내지 3중량부로 더 포함할 수 있다.In another specific embodiment, the mortar composition for cross-section repair according to the present invention comprises 3-mercaptopropyltrimethoxysilane in 1 to 3 parts by weight based on 100 parts by weight of cement in order to improve the strength, penetration, and water repellency of the composition. It may contain more.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 장기강도 발현 및 내구성 증진을 위하여 겔라이트 미분말을 시멘트 100중량부 기준으로 1 내지 3중량부로 더 포함할 수 있는데, 상기 겔라이트는 황토의 187배 이상의 효과를 가진 광물질로서 상기 효과 이외에 양질의 원적외선 방출 효과도 있는 것으로서, 바람직한 평균입도는 1 내지 5㎛ 이다.In another specific embodiment, the mortar composition for cross-section repair according to the present invention may further contain 1 to 3 parts by weight of gelite fine powder based on 100 parts by weight of cement in order to develop long-term strength and durability of the composition. Is a mineral having an effect of 187 times or more of loess, and has a high-quality far-infrared emission effect in addition to the above effect, and the preferred average particle size is 1 to 5 μm.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물을 구성하는 재료의 응결을 방지하고 일정시간 작업시간을 확보하기 위하여 구연산을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함할 수 있다.In another specific aspect, the mortar composition for cross-section repair according to the present invention further comprises 1 to 5 parts by weight of citric acid based on 100 parts by weight of cement in order to prevent condensation of the material constituting the composition and to secure a certain working time. I can.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 표면에 수분침투를 방지하면서 통기성을 확보하기 위하여 시멘트 100중량부 기준으로 1 내지 5중량부의 소디윰스테아레이트를 더 포함할 수 있는데, 그 함량이 시멘트 100중량부 기준으로 1중량부 미만이면 목적한 수분침투 방지기능을 얻을 수 없고, 5중량부를 초과하면 조성물의 강도 저하현상이 나타나 좋지 않다.As another specific aspect, the mortar composition for cross-section repair according to the present invention may further include 1 to 5 parts by weight of sodium stearate based on 100 parts by weight of cement in order to secure breathability while preventing moisture penetration on the surface of the composition. However, if the content is less than 1 part by weight based on 100 parts by weight of cement, the intended moisture penetration prevention function cannot be obtained, and if it exceeds 5 parts by weight, the strength of the composition decreases, which is not good.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르조성물은 조성물의 내수성 및 내스크래치성을 향상시키기 위하여 시멘트 100중량부 기준으로 1 내지 6중량부의 붕산 화합물을 더 포함할 수 있는데, 상기 붕산 화합물로는 오르토붕산, 메타붕산, 사붕산, 붕산 메틸, 붕산 에틸 등을 들 수 있으며, 바람직하게는 오르토붕산을 사용하는 것이 좋다.In another specific embodiment, the mortar composition for cross-section repair according to the present invention may further include 1 to 6 parts by weight of a boric acid compound based on 100 parts by weight of cement in order to improve the water resistance and scratch resistance of the composition, the boric acid compound Examples of the examples include orthoboric acid, metaboric acid, tetraboric acid, methyl borate, ethyl borate, and the like, and it is preferable to use orthoboric acid.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 건조 수축을 방지하기 위하여 시멘트 100중량부 기준으로 1 내지 10중량부의 알루민산 칼슘을 더 포함할 수 있는데, 알루민산 칼슘이 단면보수용 모르타르 조성물에 포함되면 팽창성을 띄게 되어 조성물의 건조수축을 방지하게 되는 것으로, 그 사용량이 시멘트 100중량부 기준으로 1중량부 미만이면 그 효과가 미미하며, 10중량부를 초과할 경우 과다하여 작업성을 저하 시킬 수 있어 좋지 않다.In another specific embodiment, the mortar composition for cross-section repair according to the present invention may further include 1 to 10 parts by weight of calcium aluminate based on 100 parts by weight of cement in order to prevent drying shrinkage of the composition, wherein the calcium aluminate is cross-sectional When included in the mortar composition for repair, it becomes expandable to prevent drying and shrinkage of the composition.If the amount is less than 1 part by weight based on 100 parts by weight of cement, the effect is insignificant, and if it exceeds 10 parts by weight, it is excessive. It is not good because it can lower your sex.

또 다른 특정 양태로서, 본 발명에 따른 단면보수용 모르타르 조성물은 조성물의 압축강도 및 휨강도를 향상시키기 위하여 시멘트 100중량부 기준으로 1 내지 5중량부의 메타규산나트륨을 더 포함할 수 있는데, 그 함량이 1중량부 미만이면 유동성이 낮아지고 불규칙한 기포가 형성되며, 5중량부를 초과하면 경화시간을 확보하기 어려워 좋지 않다.As another specific aspect, the mortar composition for cross-section repair according to the present invention may further contain 1 to 5 parts by weight of sodium metasilicate based on 100 parts by weight of cement in order to improve the compressive strength and flexural strength of the composition, the content If it is less than 1 part by weight, fluidity is lowered and irregular air bubbles are formed, and if it exceeds 5 parts by weight, it is difficult to secure a curing time, which is not good.

이와 같은 구성을 갖는 본 발명에 따른 단면보수용 모르타르 조성물을 이용하여 시공하는 방법, 예를 들면 단면보수공법은 당업계에서 통상적으로 사용하는 방법이라면 특별히 한정되지 않지만, 본 발명을 보다 용이하게 설명하기 위해 이러한 일례를 설명하면 다음과 같다.A method of construction using the mortar composition for cross-section repair according to the present invention having such a configuration, for example, the cross-section repair method is not particularly limited as long as it is a method commonly used in the art, but to more easily describe the present invention In order to explain such an example as follows.

본 발명에 따른 단면보수용 모르타르 조성물을 이용하여 시공하는 방법, 특정적으로 단면 보수를 위한 시공방법은 보강하고자 하는 보강면의 이물질을 제거한 후 청소하는 이물질 제거-청소단계; A method of construction using the mortar composition for cross-section repair according to the present invention, and specifically, a construction method for cross-section repair includes a foreign substance removal-cleaning step of removing foreign substances from the reinforcing surface to be reinforced and then cleaning;

상기 이물질 제거-청소단계가 종료된 보강면에 시멘트 100중량부 기준으로, 고로슬래그 미분말 10 내지 60중량부, 플라이애시 10 내지 60중량부, 실리카퓸 3 내지 8중량부, 메타카올린 5 내지 30중량부, 석고 2 내지 10중량부, 폴리비닐알코올 분말 5 내지 20중량부, 나노세라믹 입자 10 내지 40중량부, 안정제 1 내지 10중량부, 산화방지제 3 내지 15중량부, 증점제 1 내지 10중량부, 및 고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물을 물과 혼합한 뒤 타설하는 타설단계; 및 The foreign matter removal-cleaning step is completed, based on 100 parts by weight of cement, 10 to 60 parts by weight of blast furnace slag fine powder, 10 to 60 parts by weight of fly ash, 3 to 8 parts by weight of silica fume, 5 to 30 parts by weight of metakaolin Parts, 2 to 10 parts by weight of gypsum, 5 to 20 parts by weight of polyvinyl alcohol powder, 10 to 40 parts by weight of nanoceramic particles, 1 to 10 parts by weight of stabilizer, 3 to 15 parts by weight of antioxidant, 1 to 10 parts by weight of thickener, And a pouring step of pouring after mixing a mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent with water; And

상기 타설단계가 종료된 후 양생하는 양생단계를 포함한다.It includes a curing step of curing after the pouring step is completed.

이하에서 실시예를 통하여 본 발명을 구체적으로 설명하기로 한다. 그러나 하기의 실시예는 오로지 본 발명을 구체적으로 설명하기 위한 것으로 이들 실시예에 의해 본 발명의 범위를 한정하는 것은 아니다.Hereinafter, the present invention will be described in detail through examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention by these examples.

[실시예 1][Example 1]

포틀랜드 시멘트 100g, 분말도가 약 3,850cm2/g이고, 밀도가 약 3.1g/cm3인 고로슬래그 미분말 35g, 분말도는 약 3,500cm2/g이고 밀도가 약 2.2g/cm3인 플라이애시 30g, 실리카퓸 5g, 메타카올린 15g, 무수석고 6g, 약 5㎛ 크기의 기공이 약 0.05 내지 0.2cc/g의 범위로 포함된 폴리비닐알코올 분말 12g, 평균입경이 약 450nm인 실리콘카바이드 25g, 펙틴 5g, 2.2-메틸렌비스(4-메틸-6-t-부틸페놀) 8g, 하이드록시 에틸 셀룰로오즈 7g, 및 폴리모노아크릴레이트로 이루어진 고성능 감수제 4g을 혼합하여 단면보수용 모르타르 조성물을 제조하였다.Portland cement 100g, fineness of about 3,850cm 2 / g, and a density of about 3.1g / cm 3 of blast furnace slag fine powder 35g, fineness of about 3,500cm 2 / g and a density of about 2.2g / cm 3 of fly ash 30g, silica fume 5g, metakaolin 15g, anhydrous gypsum 6g, polyvinyl alcohol powder 12g with pores of about 5㎛ in the range of about 0.05 to 0.2cc/g, silicon carbide 25g with average particle diameter of about 450nm, pectin 5g, 2.2-methylenebis(4-methyl-6-t-butylphenol) 8g, hydroxyethyl cellulose 7g, and 4g of a high-performance water reducing agent composed of polymonoacrylate were mixed to prepare a mortar composition for cross-section repair.

[실시예 2][Example 2]

실시예 1과 동일한 방법으로 실시하되, 가리명반 5g을 더 부가하여 실시하였다. It was carried out in the same manner as in Example 1, but was carried out by adding an additional 5 g of alum.

[실시예 3][Example 3]

실시예 1과 동일한 방법으로 실시하되, 폴리비닐리덴플로라이드수지 20g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 20 g of polyvinylidene fluoride resin.

[실시예 4][Example 4]

실시예 1과 동일한 방법으로 실시하되, 2-디에틸아미노에틸아민 15g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but further added 15 g of 2-diethylaminoethylamine.

[실시예 5][Example 5]

실시예 1과 동일한 방법으로 실시하되, 폴리아민올 12g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 12 g of polyamineol.

[실시예 6][Example 6]

실시예 1과 동일한 방법으로 실시하되, 네오펜틸글리콜 5g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 5 g of neopentyl glycol.

[실시예 7][Example 7]

실시예 1과 동일한 방법으로 실시하되, 플라스터 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of plaster.

[실시예 8][Example 8]

실시예 1과 동일한 방법으로 실시하되, 티타늄옥사이드 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of titanium oxide.

[실시예 9][Example 9]

실시예 1과 동일한 방법으로 실시하되, 깁사이트 8g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 8 g of gibbsite.

[실시예 10][Example 10]

실시예 1과 동일한 방법으로 실시하되, 세륨 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of cerium.

[실시예 11][Example 11]

실시예 1과 동일한 방법으로 실시하되, 옥수수 스타치 6g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 6 g of corn starch.

[실시예 12][Example 12]

실시예 1과 동일한 방법으로 실시하되, 토르말린 6g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but additionally 6 g tourmaline was added.

[실시예 13][Example 13]

실시예 1과 동일한 방법으로 실시하되, 진크암모늄클로라이드 6g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but further added 6 g of zinc ammonium chloride.

[실시예 14][Example 14]

실시예 1과 동일한 방법으로 실시하되, 평균입도가 5㎛인 천매암 분말 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but with an average particle size of 5 μm, 3 g of cheonmaeam powder was further added.

[실시예 15][Example 15]

실시예 1과 동일한 방법으로 실시하되, 평균입도가 3㎛인 보크사이트 분말 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but further added 3 g of bauxite powder having an average particle size of 3 μm.

[실시예 16][Example 16]

실시예 1과 동일한 방법으로 실시하되, 디부틸프탈레이트 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of dibutylphthalate.

[실시예 17][Example 17]

실시예 1과 동일한 방법으로 실시하되, 3-메르캅토프로필트리메톡시실란 2g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but further added 2 g of 3-mercaptopropyltrimethoxysilane.

[실시예 18][Example 18]

실시예 1과 동일한 방법으로 실시하되, 평균입도가 3㎛인 겔라이트 미분말 2g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but further added 2 g of a fine gelite powder having an average particle size of 3 μm.

[실시예 19][Example 19]

실시예 1과 동일한 방법으로 실시하되, 구연산 2g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of citric acid.

[실시예 20][Example 20]

실시예 1과 동일한 방법으로 실시하되, 소디윰스테아레이트 2g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 2 g of sodium stearate.

[실시예 21][Example 21]

실시예 1과 동일한 방법으로 실시하되, 오르토붕산 3g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 3 g of orthoboric acid.

[실시예 22][Example 22]

실시예 1과 동일한 방법으로 실시하되, 알루민산 칼슘 4g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 4 g of calcium aluminate.

[실시예 23][Example 23]

실시예 1과 동일한 방법으로 실시하되, 메타규산나트륨 4g을 더 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but was carried out by adding 4 g of sodium metasilicate.

[실시예 24][Example 24]

실시예 1과 동일한 방법으로 실시하되, 실시예 3 내지 실시예 23에 따라 부가된 부가물을 모두 부가하여 실시하였다.It was carried out in the same manner as in Example 1, but all of the additives added according to Examples 3 to 23 were added.

[실 험][Experiment]

실시예에 따라 제조된 조성물을 물과 혼합하여 콘크리트를 제조한 후 기계적 물성, 예를 들면 오염물질 용출정도, 경화시간, 화학적 경화시간, 압축강도 등을 측정하였다.After preparing concrete by mixing the composition prepared according to the example with water, mechanical properties such as the degree of dissolution of contaminants, hardening time, chemical hardening time, compressive strength, etc. were measured.

그 결과를 표 1로 나타냈다. The results are shown in Table 1.

오염물질 용출Elution of pollutants 경화 시간(hr)Curing time (hr) 화학적 경화시간(day)Chemical curing time (day) 압축강도(MPa)Compressive strength (MPa) 실시예 1Example 1 없음none 3838 1414 7575 실시예 2Example 2 없음none 3737 1515 7676 실시예 3Example 3 없음none 3838 1414 7575 실시예 4Example 4 없음none 4040 1515 7777 실시예 6Example 6 없음none 3939 1414 7676 실시예 7Example 7 없음none 4242 1313 7575 실시예 8Example 8 없음none 4444 1616 7777 실시예 9Example 9 없음none 4242 1515 7474 실시예 10Example 10 없음none 3939 1414 7676 실시예 11Example 11 없음none 4040 1616 7878 실시예 12Example 12 없음none 4141 1515 7575 실시예 13Example 13 없음none 4242 1616 7676 실시예 14Example 14 없음none 4343 1717 7878 실시예 15Example 15 없음none 4646 1717 7676 실시예 16Example 16 없음none 4040 1515 7777 실시예 17Example 17 없음none 4141 1414 7676 실시예 18Example 18 없음none 4444 1515 7676 실시예 19Example 19 없음none 4343 1616 7575 실시예 20Example 20 없음none 3939 1515 7474 실시예 21Example 21 없음none 4141 1414 7777 실시예 22Example 22 없음none 4242 1717 7878 실시예 23Example 23 없음none 4343 1414 7777 실시예 24Example 24 없음none 4444 1616 7676

표 1에 나타난 바와 같이, 실시예들에 따라 제조된 단면보수용 모르타르 조성물은 오염물질의 용출이 없으며, 경화시간이 매우 신속한 것은 아니지만 적어도 3일 안에 경화되고, 압축강도가 단면보수용 모르타르가 요구하는 물성을 충분히 만족하는 것으로 나타났다.As shown in Table 1, the mortar composition for cross-section repair prepared according to the examples does not dissolve contaminants, and the curing time is not very rapid, but cures within at least 3 days, and the mortar for cross-section repair is required. It was found to be sufficiently satisfied with the properties.

이상에서 설명한 바와 같이, 본 발명이 속하는 기술 분야의 당업자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예는 모두 예시적인 것이며 한정적인 것이 아닌 것으로서 이해해야만 한다. 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위의 의미 및 범위 그리고 그 등가개념으로부터 도출되는 모두 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.As described above, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, all the embodiments described above are illustrative and should be understood as non-limiting. The scope of the present invention should be construed as including all altered or modified forms derived from the meaning and scope of the claims to be described later rather than the above detailed description, and equivalent concepts thereof.

Claims (5)

시멘트 100중량부 기준으로,
고로슬래그 미분말 10 내지 60중량부;
플라이애시 10 내지 60중량부;
실리카퓸 3 내지 8중량부;
메타카올린 5 내지 30중량부;
석고 2 내지 10중량부;
폴리비닐알코올 분말 5 내지 20중량부;
나노세라믹 입자 10 내지 40중량부;
안정제 1 내지 10중량부;
산화방지제 3 내지 15중량부;
증점제 1 내지 10중량부; 및
고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물에,
네오펜틸글리콜을 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하고,
티타늄옥사이드를 시멘트 100중량부 기준으로 0.1 내지 5중량부로 더 포함하며,
세륨을 시멘트 100중량부 기준으로 0.1 내지 5중량부로 더 포함하고,
토르말린을 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하며,
진크암모늄클로라이드를 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하고,
천매암 분말을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함하며,
보크사이트 분말을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함하고,
디부틸프탈레이트를 시멘트 100중량부 기준으로 2 내지 6중량부로 더 포함하며,
3-메르캅토프로필트리메톡시실란을 시멘트 100중량부 기준으로 1 내지 3중량부로 더 포함하고,
겔라이트 미분말을 시멘트 100중량부 기준으로 1 내지 3중량부로 더 포함하며,
소디윰스테아레이트를 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함하고,
붕산 화합물을 시멘트 100중량부 기준으로 1 내지 6중량부로 더 포함하며,
알루민산 칼슘을 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하는 단면보수용 모르타르 조성물.
Based on 100 parts by weight of cement,
10 to 60 parts by weight of blast furnace slag fine powder;
10 to 60 parts by weight of fly ash;
3 to 8 parts by weight of silica fume;
5 to 30 parts by weight of metakaolin;
2 to 10 parts by weight of gypsum;
5 to 20 parts by weight of polyvinyl alcohol powder;
10 to 40 parts by weight of nanoceramic particles;
1 to 10 parts by weight of a stabilizer;
3 to 15 parts by weight of an antioxidant;
1 to 10 parts by weight of a thickener; And
In the mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent,
Neopentyl glycol further comprises 1 to 10 parts by weight based on 100 parts by weight of cement,
Titanium oxide further comprises 0.1 to 5 parts by weight based on 100 parts by weight of cement,
Cerium is further included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of cement,
Tourmaline further comprises 1 to 10 parts by weight based on 100 parts by weight of cement,
Further comprising zinc ammonium chloride in 1 to 10 parts by weight based on 100 parts by weight of cement,
Further comprising 1 to 5 parts by weight of the phylum rock powder based on 100 parts by weight of cement,
Further comprising 1 to 5 parts by weight of bauxite powder based on 100 parts by weight of cement,
Further comprising 2 to 6 parts by weight of dibutylphthalate based on 100 parts by weight of cement,
3-mercaptopropyltrimethoxysilane further comprises 1 to 3 parts by weight based on 100 parts by weight of cement,
Further comprising 1 to 3 parts by weight of gelite fine powder based on 100 parts by weight of cement,
Sodium stearate further comprises 1 to 5 parts by weight based on 100 parts by weight of cement,
A boric acid compound is further included in an amount of 1 to 6 parts by weight based on 100 parts by weight of cement,
Mortar composition for cross-section repair further comprising 1 to 10 parts by weight of calcium aluminate based on 100 parts by weight of cement.
 삭제delete 삭제delete 삭제delete 보강하고자 하는 보강면의 이물질을 제거한 후 청소하는 이물질 제거-청소단계;
상기 이물질 제거-청소단계가 종료된 보강면에 시멘트 100중량부 기준으로, 고로슬래그 미분말 10 내지 60중량부, 플라이애시 10 내지 60중량부, 실리카퓸 3 내지 8중량부, 메타카올린 5 내지 30중량부, 석고 2 내지 10중량부, 폴리비닐알코올 분말 5 내지 20중량부, 나노세라믹 입자 10 내지 40중량부, 안정제 1 내지 10중량부, 산화방지제 3 내지 15중량부, 증점제 1 내지 10중량부, 및 고성능 감수제 0.01 내지 10중량부를 포함하는 단면보수용 모르타르 조성물에, 네오펜틸글리콜을 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하고, 티타늄옥사이드를 시멘트 100중량부 기준으로 0.1 내지 5중량부로 더 포함하며, 세륨을 시멘트 100중량부 기준으로 0.1 내지 5중량부로 더 포함하고, 토르말린을 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하며, 진크암모늄클로라이드를 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하고, 천매암 분말을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함하며, 보크사이트 분말을 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함하고, 디부틸프탈레이트를 시멘트 100중량부 기준으로 2 내지 6중량부로 더 포함하며, 3-메르캅토프로필트리메톡시실란을 시멘트 100중량부 기준으로 1 내지 3중량부로 더 포함하고, 겔라이트 미분말을 시멘트 100중량부 기준으로 1 내지 3중량부로 더 포함하며, 소디윰스테아레이트를 시멘트 100중량부 기준으로 1 내지 5중량부로 더 포함하고, 붕산 화합물을 시멘트 100중량부 기준으로 1 내지 6중량부로 더 포함하며, 알루민산 칼슘을 시멘트 100중량부 기준으로 1 내지 10중량부로 더 포함하는 단면보수용 모르타르 조성물을 물과 혼합한 뒤 타설하는 타설단계; 및
상기 타설단계가 종료된 후 양생하는 양생단계를 포함하는 단면보수용 모르타르 조성물의 시공방법.








Foreign matter removal-cleaning step of removing foreign matter from the reinforcing surface to be reinforced and then cleaning;
The foreign matter removal-cleaning step is completed, based on 100 parts by weight of cement, 10 to 60 parts by weight of blast furnace slag fine powder, 10 to 60 parts by weight of fly ash, 3 to 8 parts by weight of silica fume, 5 to 30 parts by weight of metakaolin Parts, 2 to 10 parts by weight of gypsum, 5 to 20 parts by weight of polyvinyl alcohol powder, 10 to 40 parts by weight of nanoceramic particles, 1 to 10 parts by weight of stabilizer, 3 to 15 parts by weight of antioxidant, 1 to 10 parts by weight of thickener, And in the mortar composition for cross-section repair comprising 0.01 to 10 parts by weight of a high-performance water reducing agent, neopentyl glycol is further included in 1 to 10 parts by weight based on 100 parts by weight of cement, and titanium oxide in 0.1 to 5 parts by weight based on 100 parts by weight of cement. It further includes, further comprising 0.1 to 5 parts by weight of cerium based on 100 parts by weight of cement, further comprising 1 to 10 parts by weight based on 100 parts by weight of cement, and 1 to 10 parts by weight of zinc ammonium chloride based on 100 parts by weight of cement It further comprises 10 parts by weight, further comprises 1 to 5 parts by weight based on 100 parts by weight of cement, and further includes 1 to 5 parts by weight based on 100 parts by weight of cement, and further comprises 1 to 5 parts by weight of bauxite powder based on 100 parts by weight of cement. Further comprising 2 to 6 parts by weight based on parts by weight, 3-mercaptopropyltrimethoxysilane further comprising 1 to 3 parts by weight based on 100 parts by weight of cement, and 1 to 3 parts by weight based on 100 parts by weight of cement It further comprises 3 parts by weight, further comprises 1 to 5 parts by weight of sodium stearate based on 100 parts by weight of cement, further comprises 1 to 6 parts by weight of a boric acid compound based on 100 parts by weight of cement, and calcium aluminate cement A pouring step of pouring after mixing the mortar composition for cross-section repair further comprising 1 to 10 parts by weight based on 100 parts by weight with water; And
Construction method of a mortar composition for cross-section repair comprising a curing step of curing after the pouring step is completed.
KR1020200074353A 2020-06-18 2020-06-18 Mortar Composition for Repair Section and Constructing Methods Using Thereof KR102178145B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020200074353A KR102178145B1 (en) 2020-06-18 2020-06-18 Mortar Composition for Repair Section and Constructing Methods Using Thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020200074353A KR102178145B1 (en) 2020-06-18 2020-06-18 Mortar Composition for Repair Section and Constructing Methods Using Thereof

Publications (1)

Publication Number Publication Date
KR102178145B1 true KR102178145B1 (en) 2020-11-13

Family

ID=73398889

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200074353A KR102178145B1 (en) 2020-06-18 2020-06-18 Mortar Composition for Repair Section and Constructing Methods Using Thereof

Country Status (1)

Country Link
KR (1) KR102178145B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102291758B1 (en) * 2020-12-29 2021-08-25 씨텍 주식회사 Shrinkage-reducing type quick-hardening and early strength cement concrete composition modified by latex and repairing method for road and bridge concrete structure using th same
KR102390085B1 (en) * 2021-07-27 2022-04-26 주식회사 대승이엔지 Eco-friendly Mortar Composition for Floor and Constructing Methods Using Thereof
KR20220100340A (en) 2021-01-08 2022-07-15 솜인이엔씨 주식회사 Method For Repairing Concrete Structure using Mortar comprising ferro-nickel slag
KR102550441B1 (en) * 2023-03-02 2023-07-13 주식회사 성안이엔씨 Eco-Friendly Shotcrete Composition Including High Strength and Construction Methods of Tunnel Using Thereof and Rock Bolt for Tunnel Construction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101873880B1 (en) * 2018-03-23 2018-07-03 주식회사 디비캠 Eco-Friendly Quick-hardening Cement Composition and Constructing Methods Using Thereof
KR101959437B1 (en) * 2018-10-05 2019-03-19 (주)대한하이텍건설 Eco-Friendly Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR101997905B1 (en) * 2018-06-04 2019-07-11 우백건설 주식회사 Mortar containing fluorine resin composition and method for repairing and repairing surface of concrete structure using same
KR102002413B1 (en) * 2019-04-05 2019-07-24 주식회사 두원이엔씨 Eco-Friendly Polymer Mortar Composition for Repair Section and Constructing Methods Using Thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101873880B1 (en) * 2018-03-23 2018-07-03 주식회사 디비캠 Eco-Friendly Quick-hardening Cement Composition and Constructing Methods Using Thereof
KR101997905B1 (en) * 2018-06-04 2019-07-11 우백건설 주식회사 Mortar containing fluorine resin composition and method for repairing and repairing surface of concrete structure using same
KR101959437B1 (en) * 2018-10-05 2019-03-19 (주)대한하이텍건설 Eco-Friendly Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR102002413B1 (en) * 2019-04-05 2019-07-24 주식회사 두원이엔씨 Eco-Friendly Polymer Mortar Composition for Repair Section and Constructing Methods Using Thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102291758B1 (en) * 2020-12-29 2021-08-25 씨텍 주식회사 Shrinkage-reducing type quick-hardening and early strength cement concrete composition modified by latex and repairing method for road and bridge concrete structure using th same
KR20220100340A (en) 2021-01-08 2022-07-15 솜인이엔씨 주식회사 Method For Repairing Concrete Structure using Mortar comprising ferro-nickel slag
KR102390085B1 (en) * 2021-07-27 2022-04-26 주식회사 대승이엔지 Eco-friendly Mortar Composition for Floor and Constructing Methods Using Thereof
KR102550441B1 (en) * 2023-03-02 2023-07-13 주식회사 성안이엔씨 Eco-Friendly Shotcrete Composition Including High Strength and Construction Methods of Tunnel Using Thereof and Rock Bolt for Tunnel Construction

Similar Documents

Publication Publication Date Title
KR102178145B1 (en) Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR101681596B1 (en) Mortar composition of improving chemical resistance and durability for repairing and reinforcing concrete structures , and method of repairing and reinforcing concrete structures using the same
KR101665945B1 (en) Mortar composition of ultra rapid hardening type for repairing and reinforcing with enhanced freezing and thawing durability, salt damage resistance and crack resistance, and method of repairing and reinforcing deteriorated part of road, runway and L-type side gutter using the same
KR101512962B1 (en) Mortar Composition for Repair Section and Repair Method Section Using Thereof
KR101724062B1 (en) Mortar composition for inhibiting in-depth fine crack of damaged concrete structure and for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same
KR101710300B1 (en) Method of repairing bridge surface pavement using ultra rapid hardening latex modified concrete with enhanced freezing and thawing durability, salt damage resistance and crack resistance
KR101959437B1 (en) Eco-Friendly Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR101941179B1 (en) Composition for repairing and reinforcing concrete structure comprising high strength mortar, and method of repairing and reinforcing concrete structures using the same
KR101816756B1 (en) High Performance Fast Cement Concrete Composition and Road Pavement Maintenance Method Using the Same
KR102002413B1 (en) Eco-Friendly Polymer Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR101663690B1 (en) Mortar composition for repairing and reinforcing road gutter and small-damaged part of road, and method of repairing and reinforcing road gutter and small-damaged part of road using the same
KR101623150B1 (en) Eco Friendly Acid-resistant and Alkali-resistant Repairing Mortar Composition and Constructing Methods Using Thereof
KR100895497B1 (en) The structure repair and reinforcement method for which a concrete structure neutralization, a cement mortar composition for damage from salt water prevention and this were used
KR102079509B1 (en) Polymer Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR101700133B1 (en) Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same
KR101802698B1 (en) Repairing and reinforcing method of road gutter and coated floor using eco-friendly material
KR101621199B1 (en) Mortar composition for repairing and reinforcing concrete structure of road gutter and small-damaged part of road, and method of repairing and reinforcing concrete structure of road gutter and small-damaged part of road using the same
KR102058672B1 (en) Eco-Friendly Mortar Composition for Repair Section and Constructing Methods Using Thereof
KR102054434B1 (en) Eco-Friendly Mortar Composite for Repair Section Comprising Function of Preventing Neutralization and Saltdamage and Constructing Methods Using Thereof
KR102271506B1 (en) Eco-friendly Mortar Composition for Repair Section and Repairing Methods of Repair Section Using Thereof
KR101710934B1 (en) Eco Friendly Crack Reducing Agent Composition Comprising Expansible Material of Metal Type and Bubble Concrete Composition and Floor Mortar Composition Using Thereof
KR101670409B1 (en) Blended Cement Composition Using Seaweeds
KR100921448B1 (en) Section repair in the degradation part and means of reinforcement work of reinforced concrete structure
KR102662384B1 (en) Flowable concrete composition with excellent workability and resistance to material separation
KR101670410B1 (en) Quick-hardening Blended Cement Composition Using Seaweeds and Constructing Methods Using Thereof

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant