KR101333502B1 - A grouting composition of anchor - Google Patents
A grouting composition of anchor Download PDFInfo
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- KR101333502B1 KR101333502B1 KR20130032656A KR20130032656A KR101333502B1 KR 101333502 B1 KR101333502 B1 KR 101333502B1 KR 20130032656 A KR20130032656 A KR 20130032656A KR 20130032656 A KR20130032656 A KR 20130032656A KR 101333502 B1 KR101333502 B1 KR 101333502B1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
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- 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
- C04B14/06—Quartz; Sand
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- 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
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
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- 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
- C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
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- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/28—Polysaccharides or derivatives thereof
- C04B26/285—Cellulose or derivatives thereof
-
- 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
- C04B2103/10—Accelerators; Activators
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- 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
- C04B2103/40—Surface-active agents, dispersants
- C04B2103/408—Dispersants
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- 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
- C04B2103/50—Defoamers, air detrainers
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- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2103/00—Civil engineering use
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- 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
Abstract
Description
본 발명은 앵커 보강용 주입재 조성물에 관한 것으로서, 더욱 상세하게는, 앵커 보강용 주입재를 규사와 시멘트, 충진재, 팽창재, 유해물질 침투방지제, 분산제, 촉진제, 지연제, 결합재, 및 소포제로 조성함으로써, 앵커에 원활하게 주입되도록 하는 주입성능을 향상시키는 앵커 보강용 주입재 조성물에 관한 것이다.
The present invention relates to an anchor reinforcement injection material composition, and more particularly, by forming the anchor reinforcement injection material of silica sand and cement, fillers, expanders, harmful substances penetration inhibitors, dispersants, accelerators, retarders, binders, and antifoaming agents, It relates to an anchor reinforcement injection material composition for improving the injection performance to be smoothly injected into the anchor.
일반적으로 옹벽이란 토압력(土壓力)에 저항하여 흙이 무너지지 못하도록 만든 벽체(壁體)인데, 지표지반(地表地盤)의 안정된 경사를 그것보다 가파른 경사로 하였을 경우에 일어나는 지반 붕괴를 막기 위해 만든 구조물로서, 흙을 쌓아 올릴 때, 산을 깎아낼 때, 해안을 메울 때 등에 필요한 것으로, 블록 쌓기, 중력식(重力式) 콘크리트 옹벽, 특수 철근콘크리트 옹벽 등의 여러 형식이 있다.In general, a retaining wall is a wall made to prevent soil from falling down due to earth pressure. A structure made to prevent ground collapse that occurs when a stable slope of the surface ground is steeper than that. For example, there are various forms such as block stacking, gravity concrete retaining walls, special reinforced concrete retaining walls, etc., which are necessary for stacking soil, cutting mountains, and filling shores.
아울러, 상기 블록 쌓기는 옹벽시공이라 하면 이것을 지칭할 정도로 널리 사용하고 있는 시공법으로 콘크리트로 이루어진 블록을 적층시켜 벽체를 형성하는 것이며, 중력식(重力式) 콘크리트 옹벽은 콘크리트 자체의 중량으로 지반의 붕괴를 막아내는 구조로 되었는데 비교적 높이가 낮은 경우에 채택되고, 특수 철근콘크리트 옹벽은 옹벽의 높이가 커져서 중력식 옹벽으로는 경제적이지 않거나 벽면을 수직으로 하여 용지(用地)의 이용을 유리하게 할 필요가 있을 경우에 이용되며, 역T형식·부벽식(扶壁式:L자형) 등 여러 형식이 있으며, 이 밖에도 강판이나 목책(木柵)을 이용한 간단한 것도 있다.In addition, the block stacking is to form a wall by stacking the blocks made of concrete by the construction method that is widely used to refer to this as the retaining wall construction, the gravity-type concrete retaining wall is the weight of the concrete itself to collapse the ground When the height of the retaining wall is increased and the height of the retaining wall is not economical, or the gravity retaining wall needs to be favored by using the paper vertically There are many types such as inverted T type and subwall type, and there are other simple ones using steel plate or wooden fence.
또한, 풍수해 같은 때 옹벽의 붕괴에 의한 사고가 자주 일어나는 것은 옹벽 뒤의 지반에 빗물이 침수하여 그 지반을 묽게 함으로써 옹벽에 이상(異常)한 힘이 가해져서 지반을 무너뜨리기 때문에, 이를 방지하기 위한 수단으로 지반과 옹벽사이에는 배수관을 필수적으로 구성한다.In addition, accidents caused by the collapse of the retaining wall frequently occur at the same time as the storm water, because the rainwater floods the ground behind the retaining wall and thins the ground, so that the retaining wall is exerted to break down the ground. As a means, a drainage pipe is essentially constructed between the ground and the retaining wall.
또한, 터널공사, 사면보강공사, 낙석방지공사, 사면 등의 녹화공사, 터파기 시공 등에서는 흙이 무너져 내리는 것을 방지하기 위해 보강공사나 흙막이 공사를 하며, 이러한 공사나 흙막이 공사는 지반을 보강하면서, 암이나 흙이 무너져 내리는 것을 방지한다.In addition, in tunnel construction, slope reinforcement construction, rockfall prevention construction, slope greening construction, digging construction, etc., reinforcement construction or mudstone construction is performed to prevent soil from falling down. Prevent cancer and dirt from falling down.
상기와 같이 사면보강공사 방법 또는 흙막이 시공방법으로는, 그라우팅 앵커방법과, 락볼트, 소일 네일링(soil nailing)이 있다.As described above, the slope reinforcement method or the construction method of the soil barrier, there is a grouting anchor method, a rock bolt, soil nailing (soil nailing).
상기 소일 네일링 공법에 대해서 개략적으로 살펴보면, 상기 소일 네일링 공법은 절토부가 자립할 수 있는 안정한 높이로 지반을 절토하고 절취사면에 1차 숏크리트(shot crete)를 타설하여 절토면의 붕괴 등으로부터 보호시키고, 삽입홀을 적정깊이 및 간격으로 천공한다.When the Soil Nailing Method is briefly described, the Soil Nailing Method cuts the ground to a stable height where the cut part can freely stand, and places primary shotcrete on the cut surface to protect it from the collapse of the cut surface. Drill the insertion holes at the proper depth and spacing.
상기 삽입홀 천공은 천공기(boring machine)를 이용하여 유체(공기,물,시멘트 그라우트,벤토나이트)를 투입하면서 천공할 수 있으며, 굴착면의 표면으로부터 앵커네일의 선단이 돌출되도록 각 삽입홀에 앵커네일을 삽입하고, 주입재를 투입시키기 위한 호스를 함께 삽입시킨다. 이때 주입재의 최소두께를 확보하기 위하여 앵커네일이 삽입홀의 중앙에 위치하도록 스페이서를 설치한다.The insertion hole drilling can be carried out by introducing a fluid (air, water, cement grout, bentonite) using a boring machine, anchor nail in each insertion hole so that the tip of the anchor nail protrudes from the surface of the excavation surface Insert the hose and insert the hose together to inject the injection material. At this time, in order to secure the minimum thickness of the injection material, a spacer is installed so that the anchor nail is located at the center of the insertion hole.
더불어, 호스를 통하여 상기 각 삽입홀에 주입재를 그라우팅(grouting)하고, 1차 숏크리트면에 와이어 메쉬 및 상기 앵커네일을 고정시키는 지압판을 설치하는 공법으로 절토부의 지반에 네일을 고정하게 된다.In addition, grouting the injection material in each of the insertion hole through the hose, and the nail is fixed to the ground of the cut portion by a method of installing a wire mesh and a pressure plate for fixing the anchor nail on the first shotcrete surface.
한편, 인장형 앵커는 지반에 매립되어 지표면으로부터의 인장력을 지반에 전달하게 되는데, 일반적으로 지반에 매립되는 앵커체와, PC강연선 또는 강봉 등으로 이루어지는 텐던(Tendon)으로 이루어지는 인장부, 및 상기 인장부를 지표면에 고정시키는 앵커두부로 구성된다.On the other hand, the tension anchor is embedded in the ground to transfer the tensile force from the ground surface to the ground, generally the anchor portion embedded in the ground, the tension portion consisting of a tendon (Tendon) consisting of PC strands or steel rods, and the tension It consists of an anchor head that fixes the part to the ground.
상기한 인장형 앵커는, 지표면으로부터의 인장력에 의해 앵커체가 당겨짐에 따라 그라우팅에 인정력이 작용하게 된다. 그런데, 그라우팅을 형성하는 콘크리트는, 인장력에 취약한 성질을 가지고 있기 때문에, 인장력에 의해 그라우팅에 인장균열이 발생하는 문제점이 있다.In the above-described tension anchor, as the anchor body is pulled by the tension force from the ground surface, the recognition force acts on the grouting. By the way, since the concrete forming the grout has a property that is vulnerable to the tensile force, there is a problem that the tensile crack occurs in the grouting by the tensile force.
또한, 그라우팅에 인장균열이 발생하면 균열을 통해 수분 등이 침투하게 되고, 그로 인해 앵커의 인장부 덴던이 부식되어 앵커의 기능이 상실되는 문제점이 있다.
In addition, when a tensile crack occurs in the grouting, moisture, or the like, penetrates through the crack, thereby causing the anchor portion dendon to corrode, thereby losing the function of the anchor.
상기와 같은 문제점을 해결하기 위하여 제안하는 것으로서, 본 발명의 목적은, 앵커 보강용 주입재를 규사와 시멘트, 충진재, 팽창재, 유해물질 침투방지제, 분산제, 촉진제, 지연제, 결합재, 및 소포제로 조성함으로써, 앵커에 원활하게 주입되도록 하는 주입성능을 향상시키는 앵커 보강용 주입재 조성물을 제공하는 데 있다.In order to solve the above problems, an object of the present invention is to provide an anchor reinforcement injection material composed of silica sand and cement, fillers, expanders, harmful substances penetration inhibitors, dispersants, accelerators, retarders, binders, and antifoaming agents. To provide an injection reinforcing material composition for improving the injection performance to be smoothly injected into the anchor.
본 발명의 다른 목적은, 앵커 보강용 주입재 조성물에 팽창재를 조성함으로써, 외압에 의한 강도를 향상시켜 균열에 의한 저항성이 향상되도록 하는 앵커 보강용 주입재 조성물을 제공하는 데 있다.Another object of the present invention is to provide an anchor reinforcing filler material composition by forming an expandable material in the anchor reinforcing filler material composition, thereby improving the strength due to external pressure and improving resistance to cracking.
본 발명의 또 다른 목적은, 앵커 보강용 주입재 조성물에 촉진제를 조성함으로써, 초기 고강도를 발현시켜 작업시간이 단축되도록 하는 앵커 보강용 주입재 조성물을 제공하는 데 있다.It is still another object of the present invention to provide an anchor reinforcing filler material composition by forming an accelerator in the anchor reinforcing filler material composition, thereby expressing initial high strength to shorten the working time.
본 발명의 또 다른 목적은, 앵커 보강용 주입재 조성물에 유해물질 침투방지제를 조성함으로써, 수분의 침투를 방지하는 방수성을 향상시켜 지반균열 등에 의해 수분 등이 앵커로 직접 침투되어 상기 앵커를 부식시키는 것을 방지하도록 하는 앵커 보강용 주입재 조성물을 제공하는 데 있다.
Still another object of the present invention is to form a harmful substance penetration inhibitor in the anchor reinforcing injection material composition to improve the waterproofness to prevent the penetration of moisture, and to infiltrate the anchor by direct penetration of moisture into the anchor by ground cracking or the like. It is to provide an anchor reinforcing injection material composition to prevent.
상기와 같은 목적을 달성하기 위한 본 발명은, 공사 시공에 사용되는 앵커에 주입시켜 상기 앵커의 고정력 및 강도를 향상시키도록 하는 앵커 보강용 주입재 조성물에 있어서, 상기 앵커 보강용 주입재 조성물은, 35~50 중량%의 규사와; 10~30 중량%의 시멘트; 10~25 중량%의 충진재; 5~10 중량%의 팽창재; 0.1~3 중량%의 유해물질 침투방지제; 0.01~0.6 중량%의 촉진제; 0.01~0.5 중량%의 분산제; 0.01~0.4 중량%의 지연제; 0.03~0.2 중량%의 결합재; 및 0.01~0.1 중량%의 소포제를 포함하며; 각 성분들의 비율을 총 100중량%가 되도록 선택되어 조성되는 것을 특징으로 한다.The present invention for achieving the above object, in the anchor reinforcement injection material composition to be injected into the anchor used in construction construction to improve the fixing force and strength of the anchor, the anchor reinforcement injection material composition, 35 ~ 50% by weight of silica sand; 10-30% by weight of cement; 10-25 wt% filler; 5-10% by weight of expandable material; 0.1-3% by weight of harmful substances penetration inhibitor; 0.01 to 0.6% by weight of accelerator; 0.01 to 0.5 wt% dispersant; 0.01 to 0.4 wt% retardant; 0.03 to 0.2 wt% binder; And 0.01 to 0.1% by weight of an antifoaming agent; It is characterized in that the composition of the components selected to be a total of 100% by weight.
본 발명에 있어서, 규사는, 강도를 충분히 유지할 수 있고, 주입이 원활할 수 있도록 입형이 둥글고 가늘며, 입도가 일정한 것이 바람직하다.In the present invention, the silica sand is preferably round and thin in shape and constant in particle size so that strength can be sufficiently maintained and injection can be smoothly performed.
본 발명에 있어서, 충진재는, 플라이애시, 실리카흄, 탄산칼슘, 석회미분, 고로슬래그 미분말, 또는 포클랜드 시멘트 중 어느 하나 또는 둘 이상을 혼합한 것이 바람직하다.In the present invention, the filler is preferably a mixture of any one or two or more of fly ash, silica fume, calcium carbonate, lime fine powder, blast furnace slag powder, or Falkland cement.
본 발명에 있어서, 팽창재는, 칼슘설포알루미네이트와, 석고, 또는 알루미륨분말 중 어느 하나 또는 둘 이상을 혼합한 것이 바람직하다.In the present invention, the expandable material is preferably a mixture of calcium sulfoaluminate and any one or two or more of gypsum and aluminium powder.
본 발명에 있어서, 유해물질 침투방지제는, 스테아린산 아연 또는 실란분말 중 어느 하나 또는 이를 혼합한 것이 바람직하다.In the present invention, the harmful substance penetration inhibitor is preferably any one of zinc stearate or silane powder or a mixture thereof.
본 발명에 있어서, 촉진제는, 탄산리튬 또는 탄산나트륨 중 어느 하나 또는 이들을 혼합한 것이 바람직하다.In the present invention, the accelerator is preferably any one of lithium carbonate and sodium carbonate or a mixture thereof.
본 발명에 있어서, 분산제는, 리그닌 계와, 멜라민 계, 나프탈렌 계 또는 폴리카르본산 계 중 어느 하나 또는 둘 이상을 혼합한 것이 바람직하다.In this invention, it is preferable that the dispersing agent mixes any one or two or more of a lignin system, a melamine system, a naphthalene system, or a polycarboxylic acid system.
본 발명에 있어서, 지연제는, 타르타르산 또는 구연산 중 어느 하나 또는 이들을 혼합한 것이 바람직하다.In the present invention, the retardant is preferably one of tartaric acid or citric acid or a mixture thereof.
본 발명에 있어서, 결합제는, 메틸셀롤로오스인 것이 바람직하다.In the present invention, the binder is preferably methyl cellulose.
본 발명에 있어서, 소포제는, 지방산 계 또는 실리콘 계 중 어느 하나 또는 이들을 혼합한 것이 바람직하다.
In the present invention, the antifoaming agent is preferably any one of fatty acids or silicones, or a mixture thereof.
본 발명에 의하면, 앵커 보강용 주입재를 규사와 시멘트, 충진재, 팽창재, 유해물질 침투방지제, 분산제, 촉진제, 지연제, 결합재, 및 소포제로 조성함으로써, 앵커에 원활하게 주입되도록 하는 주입성능을 향상시키는 효과가 있다.According to the present invention, the anchor reinforcing filler is composed of silica sand, cement, filler, expander, harmful substance penetration inhibitor, dispersant, accelerator, retarder, binder, and antifoaming agent, thereby improving the injection performance to smoothly inject into the anchor. It works.
또한, 앵커 보강용 주입재 조성물에 팽창재를 조성함으로써, 외압에 의한 강도를 향상시켜 균열에 의한 저항성이 향상되도록 하는 효과가 있다.In addition, by forming an expansion material in the anchor reinforcing injection material composition, there is an effect to improve the strength by the external pressure to improve the resistance to cracking.
또한, 앵커 보강용 주입재 조성물에 촉진제를 조성함으로써, 초기 고강도를 발현시켜 작업시간이 단축되도록 하는 효과가 있다.In addition, by forming a promoter in the anchor reinforcing injection material composition, there is an effect to express the initial high strength to shorten the working time.
또한, 앵커 보강용 주입재 조성물에 유해물질 침투방지제를 조성함으로써, 수분의 침투를 방지하는 방수성을 향상시켜 지반균열 등에 의해 수분 등이 앵커로 직접 침투되어 상기 앵커를 부식시키는 것을 방지하도록 하는 효과가 있다.
In addition, by forming a harmful material penetration inhibitor in the anchor reinforcing injection material composition, there is an effect to improve the waterproofness to prevent the penetration of moisture to prevent the water and the like to be directly penetrated into the anchor by ground cracks, etc. to corrode the anchor. .
이하, 본 발명의 바람직한 실시 예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described.
본 발명의 앵커 보강용 주입재 조성물은, 35~50중량%의 규사와, 10~30 중량%의 시멘트와, 10~25중량%의 충진재와, 5~10중량%의 팽창재와, 0.1~3중량%의 유해물질 침투방지재와, 0.01~0.6중량%의 촉진재와, 0.01~0.5중량%의 분산제와, 0.01~0.4중량%의 지연제와, 0.03~0.2중량%의 결합제, 및 0.01~0.1중량%의 소포제로 조성되고, 각 성분들의 비율은 총 100중량%가 되도록 선택하여 조성된다.Anchor reinforcement injection material composition of the present invention is 35 to 50% by weight of silica sand, 10 to 30% by weight of cement, 10 to 25% by weight of the filler, 5 to 10% by weight of the expanded material, 0.1 to 3% by weight % Harmful substance penetration prevention material, 0.01 to 0.6% by weight of accelerator, 0.01 to 0.5% by weight of dispersant, 0.01 to 0.4% by weight of retardant, 0.03 to 0.2% by weight of binder, and 0.01 to 0.1 It is formulated with a weight percent antifoaming agent and the proportion of each component is selected and formulated to be a total of 100 weight percent.
상기 규사는, 규산분(SiO2)이 풍부한 석영립을 총칭하며, 크게 천연규사와 인공규사로 나눌 수 있다. 상기 천연규사는 화강암류, 화강편암류 등 석영을 많이 함유하고 있는 암석이 풍화되어 형성된 것이다. 상기 인공규사는 은사라고도 부르며 주로 페그마타이트에 함유되어 있는 석영만을 선별 분쇄하여 모래상으로 만든 것이다.The silica sand is a generic term for quartz grains rich in silicate powder (SiO 2 ) and can be roughly divided into natural silica sand and artificial silica sand. The natural silica is formed by weathering the rock containing a lot of quartz, such as granite, granitic rocks. Said artificial silica is also called silver and is mainly made of sand by selectively grinding and crushing quartz contained in pegmatite.
또한, 상기 규사는 제품의 강도를 충분히 유지할 수 있도록 강해야하고, 주입이 원활할 수 있도록 입형이 둥글고 가늘며, 입도가 일정한 것이 바람직하다.In addition, the silica sand should be strong enough to maintain the strength of the product, it is preferable that the shape of the round and thin, the particle size is constant to facilitate the injection.
또한, 상기 규사는 35중량% 미만이면 상대적으로 고가의 시멘트가 더 혼합됨에 따른 제조단가가 상승되고, 50중량%를 초과하면 상대적으로 시멘트의 혼합비율이 축소됨에 따라 주입재의 강도를 유지할 수 없기 때문에, 35~50중량%임이 바람직하다.In addition, if the silica sand is less than 35% by weight, the manufacturing cost is increased as the relatively expensive cement is further mixed, and if it exceeds 50% by weight, the strength of the injection material cannot be maintained as the mixing ratio of the cement is reduced. It is preferable that it is 35-50 weight%.
상기 시멘트(Cement)는 수화작용(水和作用)에 의해 경화된다. 골재 같은 메움재료와 섞어서 사용하는데, 모레와 섞으면 석조건축에서 사용되는 모르타르가 되고, 자갈 또는 부순 돌과 섞으면 콘크리트가 된다.The cement is cured by hydration (水 和 作用). It is mixed with the filling material such as aggregate, and when mixed with the sand, it becomes the mortar used in the stone building, and when mixed with the gravel or the crushed stone, it becomes concrete.
상기 시멘트는, 10중량% 미만이면 주입재의 강도를 유지할 수 없고, 30중량%를 초과하면 주입재의 제조단가가 상승하기 때문에, 10~30중량%임이 바람직하다.If the cement is less than 10% by weight, the strength of the injection material cannot be maintained, and if it exceeds 30% by weight, the manufacturing cost of the injection material is increased, so it is preferably 10 to 30% by weight.
상기 충진재는, 연소가스에 혼입된 석탄재로 이루어진 플라이애시(Fly ash)와, 실리카흄(Silica fume), 탄산칼슘(CaCO3), 석회미분, 용광로에서 나오는 부산물인 고로의 슬래그(Slag) 미분말 등의 분말재료를 하나 또는 둘 이상의 혼합물로 이루어진다. The filler is a fly ash made of coal ash mixed with combustion gas, silica fume, calcium carbonate (CaCO 3 ), lime fine powder, slag fine powder of blast furnace which is a by-product from the furnace. The powder material consists of one or more mixtures.
또는, 상기 충진재는, 포클랜드 시멘트를 사용하여도 무방하다. 상기 포클랜드 시멘트는 실리카, 알루미나, 산환철과 혼합된 석회의 성분으로 이루어져 있다.Alternatively, the filler may use Falkland cement. The falkland cement is composed of a component of lime mixed with silica, alumina, and oxidized iron.
상기 충진재는 10중량% 미만이면 주입재의 강도를 유지할 수 없고, 25중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 10~25중량%임이 바람직하다.If the filler is less than 10% by weight can not maintain the strength of the injection material, if it exceeds 25% by weight is 10 to 25% by weight, because the physical properties are the same as the content of less than that, but in terms of economic efficiency.
상기 팽창재는, 주입재의 강도를 향상시키는 조성물이다.The expandable material is a composition for improving the strength of the injected material.
즉, 상기 충전재와 가령, 포클랜드 시멘트에 적당량 혼합하여 사용하면 경화과정에서 에트린자이트(Ettringite)라는 고황산염수화물이 생성되어 경화체의 구조를 치밀하게 하고, 팽창력을 발현하여 건조수축 저감, 무수축 콘크리트 및 모르터의 생산을 가능하게 한다. 또한, 원심력 철근콘크리트관에 사용시 외압강도가 증진되어 외부 하중으로부터 발생하는 균열에 대한 저항성을 향상시킨다.In other words, when used in an appropriate amount mixed with the filler and, for example, Falkland cement, a high sulfate hydrate called Ettringite is produced during the curing process, densifying the structure of the cured product, expressing the expansion force, and reducing dry shrinkage and shrinkage. It enables the production of concrete and mortars. In addition, when used in the centrifugal reinforced concrete pipe, the external pressure strength is enhanced to improve the resistance to cracking from external loads.
상기 팽창재는, 칼슘설포알루미네이트(Calcium Sulfo-Aluminate, CSA), 석고, 알루미늄분말 중 어느 하나 또는 둘 이상을 혼합한 것이다. 상기 칼슘설포알루미네이트는 석회석, 석고 및 알루미나질 원료를 로터리킬른에서 소성하여 제조되는 것이다.The expansion material is a mixture of any one or two or more of calcium sulfo-aluminate (CSA), gypsum, aluminum powder. The calcium sulfoaluminate is prepared by calcining limestone, gypsum and alumina raw materials in a rotary kiln.
상기 팽창재는 5중량% 미만이면 외압강도에 대한 저항성을 발휘할 수 없고, 10중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 5~10중량%임이 바람직하다.If the expandable material is less than 5% by weight can not exhibit resistance to external pressure strength, when it exceeds 10% by weight it is preferably 5 to 10% by weight because the physical properties are the same as the content below that is not preferable in terms of economics.
상기 유해물질 침투방지재는, 방수성을 향상시켜 균열들에 의해 수분이 앵커로 직접적으로 침투되어 상기 앵커가 부식되는 것을 방지한다.The harmful substance penetration preventing material improves waterproofness and prevents water from penetrating directly into the anchor by cracks to prevent corrosion of the anchor.
상기 유해물질 침투방지제는, 스테아린산 아연(Zinc-stearate) 및 실란분말(Silane power) 중 어느 하나 또는 이들을 혼합한 것이다.The harmful substance penetration inhibitor is one or a mixture of zinc stearate (Zinc-stearate) and silane powder (Silane power).
이 경우, 상기 유해물질 침투방지재는, 0.1~3 중량%로 이루어지며, 이 중 0.1~2중량%의 스테아린산 아연과 0.1~1중량%의 실란분말을 혼합하여 조성된 것이 바람직하다.In this case, the harmful substance penetration prevention material is made of 0.1 to 3% by weight, of which 0.1 to 2% by weight of zinc stearate and 0.1 to 1% by weight of silane powder is preferably mixed.
상기 유해물질 침투방지제는 0.1중량% 미만이면 방수성을 발휘할 수 없고, 3중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 0.1~3중량%임이 바람직하다.If the harmful substance penetration inhibitor is less than 0.1% by weight can not exhibit waterproofness, if it exceeds 3% by weight is physically the same as the content of less than that, but in terms of economical efficiency is preferably 0.1 to 3% by weight.
상기 촉진제는 주입재의 조기 강도가 발현되도록 하는 조성물이다.The accelerator is a composition that allows the early strength of the injection material to be expressed.
상기 촉진제는 탄산리튬(Li2Co3)와 탄산나트륨(Na2Co3, 소다회) 중 어느 하나 또는 이들을 혼합한 것이다. 상기 촉진재는 0.01~0.6중량%로 조성되고, 이 중 0.01~0.1중량%의 탄산리튬과, 0.1~0.5중량%의 탄산나트륨으로 조성됨이 바람직하다.The accelerator is one of lithium carbonate (Li 2 Co 3 ) and sodium carbonate (Na 2 Co 3 , soda ash) or a mixture thereof. The accelerator is preferably composed of 0.01 to 0.6% by weight, of which 0.01 to 0.1% by weight of lithium carbonate and 0.1 to 0.5% by weight of sodium carbonate are preferable.
상기 촉진제는 0.01중량% 미만이면 주입 초기의 주입강도를 발휘할 수 없고, 0.6중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 0.01~0.6중량%임이 바람직하다.When the accelerator is less than 0.01% by weight, the injection strength at the initial stage of injection may not be exhibited. When the accelerator is more than 0.6% by weight, the physical property is the same as the content below that, but it is not preferable in terms of economics, it is preferably 0.01 to 0.6% by weight.
상기 분산제는 고체의 미립자를 액체 속에 분산시키는 조성물이다.The dispersant is a composition for dispersing solid particulates in a liquid.
상기 분산제는, 리그닌 계와, 멜라민 계, 나프탈렌 계, 및 폴리카르본산 계 중 어느 하나 또는 둘 이상을 혼합하여 조성된 것이다.The dispersant is formed by mixing any one or two or more of a lignin system, a melamine system, a naphthalene system, and a polycarboxylic acid system.
또한, 상기 분산제는 0.01중량% 미만이면 미립자의 분산효과를 발휘할 수 없고, 0.5중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 0.01~0.5중량%임이 바람직하다.In addition, when the dispersant is less than 0.01% by weight can not exhibit the effect of dispersing the fine particles, when the dispersant is more than 0.5% by weight, the physical properties are the same as the content of less than that, but in terms of economical efficiency is preferably 0.01 to 0.5% by weight. .
상기 지연제는 혼화제의 일종으로 시멘트의 응결시간을 늦추기 위한 조성물이다.The retarder is a kind of admixture that is a composition for slowing the cement setting time.
상기 지연제는 타르타르산(Tartaric acid) 및 구연산(Citric acid) 중 어느 하나 또는 이들을 혼합한 조성물이다. 이 경우, 상기 지연제는 0.01~0.4중량% 중, 0.01~0.2중량%의 타르타르산과 0.01~0.2중량%로 조성된 것이 바람직하다.The retarder is a composition of any one or a mixture of tartaric acid and citric acid. In this case, the retarder is preferably composed of 0.01 to 0.2% by weight of tartaric acid and 0.01 to 0.2% by weight in 0.01 to 0.4% by weight.
또한, 상기 지연제는 0.01중량% 미만이면 시멘트의 응결시간을 늦추기 위한 효과를 발휘할 수 없고, 0.4중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 0.01~0.4중량%임이 바람직하다.In addition, if the retarder is less than 0.01% by weight can not exert an effect for slowing the setting time of cement, when the retardant is more than 0.4% by weight is the same as the content of less than that, but in terms of economical efficiency, 0.01 ~ 0.4 It is preferably in weight percent.
상기 결합재는 골재의 간격을 채워서 그들의 결합을 향상시키는 조성물이다.The binder is a composition that fills the gap of the aggregate to enhance their bonding.
상기 결합재는, 메틸셀롤로오스(Methyi cellulose)임이 바람직하다.The binder is preferably methyl cellulose (Methyi cellulose).
또한, 상기 결합재는 0.03중량% 미만이면 결합력을 발휘할 수 없고, 0.2중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 0.03~0.2중량%임이 바람직하다.In addition, the binder is less than 0.03% by weight can not exhibit a bonding force, when the binder content is more than 0.2% by weight is 0.03 to 0.2% by weight because the physical properties are the same as the content of less than that, but is not preferable in terms of economics.
상기 소포제는 액체를 혼합할 때 발생하는 유해한 거품의 발생을 방해하는 조성물이다. 상기 소포제는 지방산 계, 실리콘 계, 유기염산염 또는 알코올 중 어느 하나 또는 이들을 혼합하여 조성된 것이다.The antifoaming agent is a composition which prevents the generation of harmful bubbles which occur when mixing liquids. The antifoaming agent is composed of any one or a mixture of fatty acids, silicones, organic hydrochlorides, or alcohols.
또한, 상기 소포제는 0.01중량% 미만이면 유해한 거품발생의 억제효과를 발휘할 수 없고, 0.1중량%를 초과하면 물성이 그 이하의 함량과 동일하나 경제성 측면에서 바람직하지 않기 때문에, 0.01~0.1중량%임이 바람직하다.In addition, if the antifoaming agent is less than 0.01% by weight can not exhibit the effect of inhibiting harmful foaming, if it exceeds 0.1% by weight of the physical properties are the same as the content of less than that, but in terms of economical efficiency is 0.01 ~ 0.1% by weight desirable.
상기와 같이 조성된 앵커 보강용 주입재는, 그라우팅 앵커방법과, 락볼트, 소일 네일링(soil nailing)과 같이 천공된 구멍에 상기 주입재를 일정량 주입시킨 후 앵커를 삽입하거나 또는 천공된 구멍에 앵커를 삽입한 후 주입재를 주입하여, 상기 주입재의 초속경화에 의해 상기 앵커의 고정력을 향상시킨다.Anchor reinforcement injection material is formed as described above, the grouting anchor method, and a predetermined amount of the injection material is injected into the perforated hole, such as rock bolts, oil nailing (soil nailing), and then insert the anchor or anchor in the perforated hole After the injection, the injection material is injected to improve the fixing force of the anchor by the initial curing of the injection material.
또한, 팽창제에 의해 외압강도를 향상시켜 균열에 대한 저항성이 향상되도록 한다.In addition, by increasing the external pressure strength by the expansion agent to improve the resistance to cracking.
또한, 유해물질 침투방지재를 조성하여, 시공 후 균열 등의 열화작용으로 앵커로 수분 등이 침투되는 것을 방지하여, 상기 앵커가 부식되는 것을 방지한다.
In addition, by forming a harmful material penetration preventing material, to prevent the penetration of moisture, etc. into the anchor by deterioration action such as cracks after construction, to prevent the anchor is corroded.
이상에서 설명한 것은 앵커 보강용 주입재 조성물을 실시하기 위한 하나의 실시 예에 불과한 것으로서, 본 발명은 상기한 실시 예에 한정되지 아니하며, 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면, 본 발명의 요지를 벗어남이 없이 다양한 변경 실시가 가능하다는 것을 이해할 수 있을 것이다.As described above is just one embodiment for carrying out the injection reinforcing material composition for reinforcement, the present invention is not limited to the above-described embodiment, if one of ordinary skill in the art to which the present invention pertains, It will be understood that various changes may be made without departing from the gist.
Claims (10)
상기 앵커 보강용 주입재 조성물은,
입형이 둥글고 가늘며, 입도가 일정한 35~50 중량%의 규사와;
10~30 중량%의 시멘트;
탄산칼슘, 석회미분 및 포클랜드 시멘트 중 어느 하나 또는 둘 이상을 혼합한 10~25 중량%의 충진재;
칼슘설포알루미네이트로 이루어진 5~10 중량%의 팽창재;
실란분말로 이루어진 0.1~3 중량%의 유해물질 침투방지제;
탄산나트륨으로 이루어진 0.01~0.6 중량%의 촉진제;
리그닌 계와, 나프탈렌 계 또는 폴리카르본산 계 중 어느 하나 또는 둘 이상을 혼합한 0.01~0.5 중량%의 분산제;
타르타르산 또는 구연산 중 어느 하나 또는 이들을 혼합한 0.01~0.4 중량%의 지연제;
메틸셀롤로오스로 이루어진 0.03~0.2 중량%의 결합재; 및
실리콘 계로 이루어진 0.01~0.1 중량%의 소포제를 포함하며;
각 성분들의 비율을 총 100중량%가 되도록 선택되어 조성되는 것을 특징으로 하는 앵커 보강용 주입재 조성물.In the anchor reinforcement injection material composition to be injected into the anchor used for construction to improve the fixing force and strength of the anchor,
The anchor reinforcing material composition,
35-50% by weight of silica sand with round and thin granules;
10-30% by weight of cement;
10-25% by weight of a filler in which any one or two or more of calcium carbonate, lime fine powder and falkland cement are mixed;
5 to 10% by weight of expandable material consisting of calcium sulfoaluminate;
0.1 to 3% by weight of the toxic substance infiltrate prevention agent consisting of silane powder;
0.01 to 0.6% by weight of accelerator consisting of sodium carbonate;
0.01 to 0.5% by weight of a dispersant in which any one or two or more of a lignin system and a naphthalene system or a polycarboxylic acid system are mixed;
0.01 to 0.4% by weight of a retarder, either tartaric acid or citric acid or a mixture thereof;
0.03 to 0.2 wt% binder consisting of methyl cellulose; And
0.01 to 0.1% by weight of a defoaming agent made of a silicone system;
Anchor reinforcement injection material composition, characterized in that the composition is selected to be a total of 100% by weight of each component.
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