KR100833133B1 - Mortar composition for reinforcement and construction method by use thereof - Google Patents

Mortar composition for reinforcement and construction method by use thereof Download PDF

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KR100833133B1
KR100833133B1 KR1020070023166A KR20070023166A KR100833133B1 KR 100833133 B1 KR100833133 B1 KR 100833133B1 KR 1020070023166 A KR1020070023166 A KR 1020070023166A KR 20070023166 A KR20070023166 A KR 20070023166A KR 100833133 B1 KR100833133 B1 KR 100833133B1
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weight
mortar
strength
repairing
mortar composition
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KR1020070023166A
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Korean (ko)
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김경회
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(주)도성건설
주식회사 큐맥스
김경회
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    • 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
    • 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
    • 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
    • C04B20/0048—Fibrous materials
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/085—Acids or salts thereof containing nitrogen in the anion, e.g. nitrites
    • 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
    • C04B28/06—Aluminous cements
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/02—Portland cement
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/005—Methods or materials for repairing pavings
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/20—Retarders
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/34—Flow improvers
    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • 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

Abstract

A method for repairing or reinforcing a damaged portion of a concrete structure or road by using a mortar composition is provided to realize high strength and durability after repairing, and to reduce the time required for repairing or reinforcement, thereby improving the workability and cost-efficiency. A method for repairing or reinforcing a damaged portion of a concrete structure or road by using a mortar composition comprises the steps of: cutting at least 50 mm from the edge of the damaged portion and removing the inner part of the cut portion; washing the portion with an air compressor or high-pressure washer to remove foreign materials; introducing 25-35 wt% of alumina cement, 25-35 wt% of calcium sulfoaluminate, 10-20 wt% of Portland cement, 10-20 wt% of silica, 5-10 wt% of calcium nitrate, 5-10 wt% of gypsum, 0.2-0.5 wt% of a fiber reinforcing agent, 0.1-2 wt% of a powder resin, 0.1-1 wt% of a flow enhancer, and 0.1-1 wt% of a retarding agent and mixing the materials for 2-5 minutes to obtain a mortar composition; applying the mortar composition to the cut portion, followed by surface leveling and curing; compacting the cured mortar so as to minimize the air layer inside the mortar and to increase the strength; and applying a permeable surface reinforcing agent to the surface so as to increase the surface strength after the compacting step.

Description

보수 또는 보강용 몰탈 조성물 및 이를 이용한 시공방법{MORTAR COMPOSITION FOR REINFORCEMENT AND CONSTRUCTION METHOD BY USE THEREOF}Mortar composition for repair or reinforcement and construction method using same {MORTAR COMPOSITION FOR REINFORCEMENT AND CONSTRUCTION METHOD BY USE THEREOF}

도 1은 본 발명에 의한 몰탈을 이용한 시공방법의 공정도.1 is a process chart of the construction method using mortar according to the present invention.

본 발명은 보수 또는 보강용 몰탈 조성물 및 이를 이용한 시공방법에 관한 것으로, 보다 상세하게는 열팽창계수 및 탄성계수의 등의 조화를 이룬 상태로 콘크리트를 보수 또는 보강함으로써 보다 견고하고 높은 강도를 유지할 수 있으며, 단시간내에 보수 또는 보강할 수 있어 인건비의 절감 등 작업성을 향상시킬 수 있는 보수 또는 보강용 몰탈 조성물 및 이를 이용한 시공방법에 관한 것이다.The present invention relates to a mortar composition for repair or reinforcement and a construction method using the same, and more particularly, by maintaining or reinforcing concrete in a state in which the thermal expansion coefficient and the elastic modulus are in harmony, and maintaining a more robust and high strength. In addition, the present invention relates to a repair or reinforcement mortar composition and a construction method using the same, which can improve or improve workability such as reduction of labor costs since it can be repaired or reinforced in a short time.

일반적으로 시멘트 몰탈 조성물 및 콘크리트 조성물은 주로 토목공사와 콘크리트 구조물의 신축 공사, 보수 또는 보강용으로 사용되어 왔다. 특히 포장된 도로의 보수 또는 보강시 토목 및 신축구조물에 비해 보다 간단하게 타설하는 방법으로 사용되어 왔다.In general, cement mortar composition and concrete composition have been mainly used for new construction, repair or reinforcement of civil engineering and concrete structures. In particular, when repairing or reinforcing paved roads, it has been used as a simpler method of casting than civil and new structures.

그러나, 상기 도로의 보수 또는 보강시 사용되는 상기 시멘트 몰탈 및 콘크리트는 기존의 콘크리트와의 열팽창계수 및 탄성계수의 차이 등으로 인하여 장기적 으로 접착강도가 저하되어 표면으로부터 박리되는 현상과, 시간이 경과함에 따라 균열 및 들뜸 현상이 발생되어 당초에 기대한 목적을 달성하기가 어려운 문제가 발생되어 왔으며, 차량의 직접 저항으로 인하여 손쉽게 파손되는 등 유지보수가 어려웠으며, 특히 타설한 시멘트나 콘크리트의 응결이 늦고, 초기강도가 저하됨에 따라 작업시간의 장기화를 가져왔으며, 이에 따른 인건비의 상승 등 전체적인 작업효율의 저하를 가져오는 문제점이 있었다.However, the cement mortar and concrete used in the repair or reinforcement of the road have a long time due to the difference in thermal expansion coefficient and elastic modulus with the existing concrete and the peeling off from the surface due to the decrease in adhesive strength. As a result, problems such as cracking and lifting have occurred, making it difficult to attain the intended purpose, and it is difficult to maintain due to the direct resistance of the vehicle. As the initial strength was lowered, the work time was prolonged, and the overall work efficiency was lowered due to the increase in labor costs.

본 발명은 상기한 문제점을 해결하기 위하여 창안된 것으로, 본 발명의 목적은 콘크리트와 동일한 성분인 무기계 조성물을 이용하여 콘크리트를 보수 및 보강함에 따라 열팽창계수 및 탄성계수의 등의 조화를 이룰 수 있어 보다 견고하고 높은 강도를 유지할 수 있도록 함과 동시에 내구성을 높여 공사 완료 후 보수 또는 보강부위의 파손을 최소화시킬 수 있으며, 특히 단시간 내에 보수 또는 보강할 수 있어 인건비의 절감 등 작업성을 향상시킬 수 있을 뿐만 아니라 교통의 혼잡을 미연에 방지할 수 있는 보수 또는 보강용 몰탈 조성물 및 이를 이용한 시공방법을 제공하는 데 있다.The present invention was devised to solve the above problems, and an object of the present invention is to achieve the harmony of the coefficient of thermal expansion and elastic modulus as repair and reinforcement of concrete using an inorganic composition which is the same component as concrete. It can maintain the strength and strength and at the same time increase the durability to minimize the damage to the repair or reinforcement part after the completion of construction. Especially, it can be repaired or reinforced within a short time to improve workability such as saving labor cost. In addition, to provide a repair or reinforcement mortar composition and construction method using the same that can prevent traffic congestion in advance.

상기의 목적을 달성하기 위한 본 발명의 몰탈 조성물은 콘크리트 구조물 또는 도로의 파손부위를 보수하기 위한 몰탈 조성물에 있어서, 알루미나시멘트 25~35중량%와, 칼슘설포알루미네이트 25~35중량%와, 포트랜드시멘트 10~20중량%와, 실리카 10~20중량%와, 질산칼슘 5~10중량%와, 석고 5~10중량%와, 섬유보강제 0.2~0.5중량%와, 분말수지 0.1~2중량%와, 유동증진제 0.1~1중량%로 조성된 것을 특 징으로 한다.The mortar composition of the present invention for achieving the above object is 25 to 35% by weight of alumina cement, 25 to 35% by weight of calcium sulfoaluminate, and Portland, in the mortar composition for repairing a damaged part of a concrete structure or a road. 10-20% by weight of cement, 10-20% by weight of silica, 5-10% by weight of calcium nitrate, 5-10% by weight of gypsum, 0.2-0.5% by weight of fiber reinforcement, 0.1-2% by weight of powdered resin, It is characterized in that it is composed of 0.1-1% by weight of the flow enhancer.

이때, 상기 몰탈 조성물에는 계절에 따라 건조시간을 조절하기 위한 지연제가 0.1~1중량%가 더 혼합되어 조성된 것이 바람직하다.At this time, it is preferable that the mortar composition is a mixture of 0.1 to 1% by weight of a retarder for controlling the drying time according to the season.

이하, 본 발명의 보수 또는 보강용 몰탈 조성물 및 이를 이용한 시공방법을 상세히 설명한다.Hereinafter, the mortar composition for repair or reinforcement of the present invention and a construction method using the same will be described in detail.

본 발명에 의한 몰탈 조성물은 콘크리트 구조물 또는 도로의 파손부위를 보수하기 위한 조성물로서, 알루미나시멘트 25~35중량%와, 칼슘설포알루미네이트 25~35중량%와, 포트랜드시멘트 10~20중량%와, 실리카 10~20중량%와, 질산칼슘 5~10중량%와, 석고 5~10중량%와, 섬유보강제 0.2~0.5중량%와, 분말수지 0.1~2중량%와, 유동증진제 0.1~1중량%로 조성된다.Mortar composition according to the present invention is a composition for repairing the damaged site of the concrete structure or road, 25 to 35% by weight of alumina cement, 25 to 35% by weight of calcium sulfoaluminate, 10 to 20% by weight of Portland cement, 10 to 20% by weight of silica, 5 to 10% by weight of calcium nitrate, 5 to 10% by weight of gypsum, 0.2 to 0.5% by weight of fiber reinforcing agent, 0.1 to 2% by weight of resin powder, 0.1 to 1% by weight of flow enhancer It is made up of.

상기 알루미나시멘트는 다량의 보크사이트가 함유되어 있어 타설시 빠른 건조 및 조기 강도를 증가시키게 되고, 상기 칼슘설포알루미네이트는 시멘트 및 콘크리트 건조수축에 의한 균열방지용 팽창재, 초속경 시멘트, 초조강 시멘트, 급결재 등의 원료로 사용되는 급경성 및 조강성, 팽창성 등의 특징을 갖는다.The alumina cement contains a large amount of bauxite to increase the rapid drying and early strength during pouring, and the calcium sulfoaluminate is an expansion material for preventing cracking due to dry shrinkage of cement and concrete, cemented carbide, cemented steel cement, grade It has such characteristics as rapid rigidity, roughness, and expandability, which are used as raw materials such as payment.

상기 실리카와 질산칼슘 및 석고는 타설시 조기 강도를 증진시키기 위해 혼합되는 원료로서, 단시간 내에 보수작업을 마무리하도록 몰탈의 양생속도를 빠르게 하기 위함이다.The silica, calcium nitrate, and gypsum are raw materials mixed to enhance early strength during pouring, and are intended to speed up the curing speed of mortar to finish the repair work in a short time.

여기서, 상기 섬유보강제는 몰탈의 조기 양생에 따른 소성 수축에 의한 균열 및 크랙을 감소시키기 위하여 혼합되는 원료로서, 파손부위에 따른 보수작업 후 내 구성의 증대로 수명을 연장시키도록 하여 재보수 등의 불필요한 작업을 차단하기 위함이다.Here, the fiber reinforcing agent is a raw material that is mixed to reduce cracks and cracks due to plastic shrinkage due to early curing of mortar, and extends the lifespan by increasing durability after repair work according to the damaged part. This is to block unnecessary work.

한편, 상기 몰탈 조성물에는 계절에 따라 건조시간을 조절하도록 지연제가 0.1~1중량%가 더 혼합되어 조성되되, 하절기(25℃이상)에는 0.3~0.5중량%가 혼합되고, 춘추절기(15~25℃)에는 0.2~0.3중량%로 혼합되며, 동절기(5~15℃)에는 0.1~0.2중량%로 혼합되게 하며, 온도가 너무 높은 경우 등 여건에 따라 지연제의 양을 1중량% 이내까지 혼합시켜 사용할 수 있다.On the other hand, the mortar composition is 0.1 to 1% by weight of the retarder is further mixed to adjust the drying time according to the season, the composition is in the summer (25 ℃ or more) 0.3 to 0.5% by weight, spring and autumn (15-25) ℃) is mixed in 0.2 ~ 0.3% by weight, and in winter (5 ~ 15 ℃) to 0.1 ~ 0.2% by weight, depending on the conditions, such as when the temperature is too high, the amount of retardant is mixed to within 1% by weight Can be used.

이때, 상기 지연제는 여러가지가 있으나 통상 황산칼슘 이수화물을 주원료로 하여 제조되는 시멘트의 응결지연제를 사용할 수 있다.At this time, although the retarder is various, it is possible to use a cement retardation agent, which is usually prepared using calcium sulfate dihydrate as the main raw material.

도 1은 본 발명에 의한 몰탈 시공방법의 공정도로서, 콘크리트 구조물 또는 도로의 파손부위를 보수하기 위한 몰탈 시공방법은 콘크리트 구조물 또는 도로의 파손된 부위의 가장자리로부터 50㎜ 이상을 컷팅한 후 컷팅된 내측의 콘크리트를 제거하는 컷팅 및 제거단계와; 컷팅되어 제거된 파손부위를 에어콤프레샤 또는 고압세척기로 깨끗이 세척하여 이물질을 제거하는 세척단계와; 교반기에 알루미나시멘트 25~35중량%와, 칼슘설포알루미네이트 25~35중량%와, 포트랜드시멘트 10~20중량%와, 실리카 10~20중량%와, 질산칼슘 5~10중량%와, 석고 5~10중량%와, 섬유보강제 0.2~0.5중량%와, 분말수지 0.1~2중량%와, 유동증진제 0.1~1중량%와, 지연제 0.1~1중량%를 투입한 후 2~5분 동안 혼합하는 몰탈혼합단계와; 혼합된 몰탈을 상기 컷팅된 파손부위에 타설한 후 흙손 또는 붓으로 표면을 고르게 처리한 다음 양생시키는 타설 및 표면처리단계와; 표면 양생된 몰탈 내부의 공기층을 최소화하여 강도 를 증가시키도록 다짐장비로 다지는 다짐단계와; 몰탈의 다짐 후 표면 강도를 증진시키도록 침투성 표면강화제를 도포한 후 건조시키는 표면강화단계로 이루어진다.1 is a process diagram of the mortar construction method according to the present invention, the mortar construction method for repairing the damaged part of the concrete structure or road is cut inside the cut after 50mm from the edge of the damaged part of the concrete structure or road cut inside Cutting and removing step of removing the concrete; A washing step of removing foreign matters by cleanly removing the damaged parts cut and removed with an air compressor or a high pressure cleaner; 25 to 35% by weight of alumina cement, 25 to 35% by weight of calcium sulfoaluminate, 10 to 20% by weight of Portland cement, 10 to 20% by weight of silica, 5 to 10% by weight of calcium nitrate, gypsum 5 ~ 10% by weight, 0.2 to 0.5% by weight of the fiber reinforcing agent, 0.1 to 2% by weight of the powder resin, 0.1 to 1% by weight of the flow enhancer, 0.1 to 1% by weight of the retarder and mixed for 2 to 5 minutes Mortar mixing step of doing; Placing the mixed mortar on the cut damaged part and then treating the surface evenly with a trowel or brush and then curing the surface; Compacting with compaction equipment to increase the strength by minimizing the air layer inside the surface cured mortar; After the compaction of the mortar is made of a surface strengthening step of applying a permeable surface strengthening agent to enhance the surface strength and then drying.

상기 파손된 부위를 컷팅하는 경우 50㎜이하로 컷팅하게 되면, 파손부위에 잔존하는 미세균열로 인하여 하자가 발생되거나 공사 완료 후 자동차의 주행에 따른 직접저항을 받아 파손의 우려가 있음에 따라 파손부위로부터 50㎜이상으로 컷팅한 후 컷팅된 내측의 콘크리트 및 시멘트를 분쇄시켜 제거하도록 하고, 상기 몰탈을 파손부위에 타설하는 경우에는 몰탈이 단시간 내에 굳음에 따라 가능한 한 10분 내에 타설한 후 고리게 편 다음 표면 양생시키는 것이 바람직하다.When cutting the damaged part, if cut to 50mm or less, the damaged part may be damaged due to the occurrence of a defect due to the microcracks remaining on the damaged part or the direct resistance according to the driving of the vehicle after construction is completed. After cutting to 50mm or more from the crushed concrete and cement to be removed by pulverization, and when the mortar is cast on the damaged part, as the mortar is hardened in a short time, after casting within 10 minutes as possible, Next, surface curing is preferred.

한편, 타설시 기존 구조물 또는 도로의 콘크리트면이 너무 건조하면 본 발명의 시멘트에 포함된 수분이 기존 콘크리트면 내부로 흡수되어 부착력이 감소되거나 공사완료 후 박리의 염려가 있으므로 기존 콘크리트를 습윤조건으로 만들어 주는 것이 바람직하다.On the other hand, if the concrete surface of the existing structure or road is too dry during pouring, the moisture contained in the cement of the present invention is absorbed into the existing concrete surface to reduce the adhesive force or peel off after completion of construction, making the existing concrete wet conditions It is desirable to give.

상기 표면 강도를 증진시키기 위한 표면강화제는 통상 시멘트 또는 콘크리트에 사용되는 침투성 표면강화제로서, 강도와 내수성 및 내마모성을 갖으며, 시중에 판매되는 여러 제품 중 하나를 사용하는 것으로, 장소에 따라 다를 수 있으나 통상 사용되는 애쉬포드포뮬라를 사용할 수 있다.Surface reinforcing agent to enhance the surface strength is a permeable surface reinforcing agent usually used in cement or concrete, has strength and water resistance and wear resistance, and may use one of several products on the market, depending on the place Ashford formula that is commonly used can be used.

Figure 112007019201868-pat00001
Figure 112007019201868-pat00001

상기 표는 본 발명의 몰탈을 타설한 후 시간이 지남에 따른 강도 및 응결시간을 보인 것으로, 단시간 내에 압축 및 휨강도가 높아짐을 알 수 있으며, 시멘트의 타설 후 단시간 내에 응결됨을 알 수 있다.The table shows the strength and condensation time over time after pouring mortar of the present invention, it can be seen that the compression and bending strength is increased within a short time, it can be seen that the condensation within a short time after the casting of cement.

이와 같이, 본 발명의 조성물을 이용한 보수 또는 보강작업시 보다 단시간 내에 작업할 수 있어 인건비의 절감과 동시에 작업성을 탁월하게 향상시킬 수 있는 유용한 발명이다.As such, it is a useful invention that can work within a shorter time during repair or reinforcement work using the composition of the present invention, which can greatly improve workability while reducing labor costs.

상술한 바와 같이 본 발명에 따르면, 콘크리트와 동일한 성분인 무기계 조성물을 이용하여 콘크리트를 보수 및 보강함에 따라 열팽창계수 및 탄성계수의 등의 조화를 이룰 수 있어 보다 견고하고 높은 강도를 유지할 수 있으며, 특히 높은 내구성으로 공사 완료 후 보수 또는 보강부위의 파손을 최소화시킬 수 있을 뿐만 아니라 단시간 내에 보수 또는 보강할 수 있어 인건비의 절감 등 작업성을 향상시킬 수 있으며, 긴급한 경우 우천시에도 보수작업이 가능하여 교통혼잡 등의 상황을 미연에 방지할 수 있는 장점이 있다.As described above, according to the present invention, by repairing and reinforcing concrete using an inorganic composition having the same composition as concrete, it is possible to achieve a balance of thermal expansion coefficient and elastic modulus and the like, thereby maintaining more robust and high strength. The high durability not only minimizes the damage to the repair or reinforcement parts after the construction is completed, but also can be repaired or reinforced within a short time to improve workability, such as reducing labor costs.In case of emergency, repair work can be performed even in rainy weather. There is an advantage that can be prevented in advance.

Claims (3)

삭제delete 삭제delete 콘크리트 구조물 또는 도로의 파손부위를 보수하기 위한 몰탈 시공방법에 있어서,In the mortar construction method for repairing the damaged part of the concrete structure or road, 콘크리트 구조물 또는 도로의 파손된 부위의 가장자리로부터 50㎜ 이상을 컷팅한 후 컷팅된 내측을 제거하는 컷팅 및 제거단계와;Cutting and removing steps of cutting at least 50 mm from an edge of a damaged part of a concrete structure or a road and then removing the cut inside; 컷팅되어 제거된 파손부위를 에어콤프레샤 또는 고압세척기로 깨끗이 세척하여 이물질을 제거하는 세척단계와;A washing step of removing foreign matters by cleanly removing the damaged parts cut and removed with an air compressor or a high pressure cleaner; 교반기에 알루미나시멘트 25~35중량%와, 칼슘설포알루미네이트 25~35중량%와, 포트랜드시멘트 10~20중량%와, 실리카 10~20중량%와, 질산칼슘 5~10중량%와, 석고 5~10중량%와, 섬유보강제 0.2~0.5중량%와, 분말수지 0.1~2중량%와, 유동증진제 0.1~1중량%와, 지연제 0.1~1중량%를 투입한 후 2~5분 동안 혼합하는 몰탈혼합단계와;25 to 35% by weight of alumina cement, 25 to 35% by weight of calcium sulfoaluminate, 10 to 20% by weight of Portland cement, 10 to 20% by weight of silica, 5 to 10% by weight of calcium nitrate, gypsum 5 ~ 10% by weight, 0.2 to 0.5% by weight of the fiber reinforcing agent, 0.1 to 2% by weight of the powder resin, 0.1 to 1% by weight of the flow enhancer, 0.1 to 1% by weight of the retarder and mixed for 2 to 5 minutes Mortar mixing step of doing; 혼합된 몰탈을 상기 컷팅된 파손부위에 타설한 후 흙손 또는 붓으로 표면을 고르게 처리한 다음 양생시키는 타설 및 표면처리단계와;Placing the mixed mortar on the cut damaged part and then treating the surface evenly with a trowel or brush and then curing the surface; 표면 양생된 몰탈 내부의 공기층을 최소화하여 강도를 증가시키도록 다짐장비로 다지는 다짐단계와;Compacting with compaction equipment to increase the strength by minimizing the air layer inside the surface cured mortar; 몰탈의 다짐 후 표면 강도를 증진시키도록 침투성 표면강화제를 도포한 후 건조시키는 표면강화단계로 이루어진 것을 특징으로 하는 보수 또는 보강용 몰탈의 시공방법.A method of constructing a repair or reinforcement mortar comprising a surface strengthening step of applying a permeable surface strengthening agent to increase surface strength after compaction of the mortar and then drying.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100966243B1 (en) 2009-10-26 2010-06-25 부건건설(주) Repair and reinforcement method of concrete structure
KR101096620B1 (en) * 2010-11-02 2011-12-21 박정호 Emergency rehabilitation of concrete road
KR101586608B1 (en) * 2015-04-15 2016-01-19 김선정 Repair method of concrete pavement
KR101740910B1 (en) 2015-03-23 2017-05-29 신명탑건설(주) Composition of asphalt concrete for repairing road pavement

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KR20030009229A (en) * 2002-08-26 2003-01-29 엠앤에스인더스트리(주) Resin mortar composition contained carboxy methylpolysaccharide for mending/reinforcing crack of concrete structures
KR20050114572A (en) * 2004-06-01 2005-12-06 허정도 Compositions and pavement construction methods for semi-rigid pavements using reclaimed asphalt concretes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030009229A (en) * 2002-08-26 2003-01-29 엠앤에스인더스트리(주) Resin mortar composition contained carboxy methylpolysaccharide for mending/reinforcing crack of concrete structures
KR20050114572A (en) * 2004-06-01 2005-12-06 허정도 Compositions and pavement construction methods for semi-rigid pavements using reclaimed asphalt concretes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100966243B1 (en) 2009-10-26 2010-06-25 부건건설(주) Repair and reinforcement method of concrete structure
KR101096620B1 (en) * 2010-11-02 2011-12-21 박정호 Emergency rehabilitation of concrete road
KR101740910B1 (en) 2015-03-23 2017-05-29 신명탑건설(주) Composition of asphalt concrete for repairing road pavement
KR101586608B1 (en) * 2015-04-15 2016-01-19 김선정 Repair method of concrete pavement

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