KR102660316B1 - Anchor injection material for ground reinforcement - Google Patents
Anchor injection material for ground reinforcement Download PDFInfo
- Publication number
- KR102660316B1 KR102660316B1 KR1020230139183A KR20230139183A KR102660316B1 KR 102660316 B1 KR102660316 B1 KR 102660316B1 KR 1020230139183 A KR1020230139183 A KR 1020230139183A KR 20230139183 A KR20230139183 A KR 20230139183A KR 102660316 B1 KR102660316 B1 KR 102660316B1
- Authority
- KR
- South Korea
- Prior art keywords
- cement
- weight
- anchor
- parts
- water
- Prior art date
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- 239000007924 injection Substances 0.000 title claims abstract description 61
- 238000002347 injection Methods 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 title claims abstract description 51
- 230000002787 reinforcement Effects 0.000 title claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 12
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 7
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000404 calcium aluminium silicate Substances 0.000 claims abstract description 4
- 235000012215 calcium aluminium silicate Nutrition 0.000 claims abstract description 4
- WNCYAPRTYDMSFP-UHFFFAOYSA-N calcium aluminosilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O WNCYAPRTYDMSFP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229940078583 calcium aluminosilicate Drugs 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 3
- 239000004848 polyfunctional curative Substances 0.000 claims description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 11
- 239000004115 Sodium Silicate Substances 0.000 claims description 10
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 239000011398 Portland cement Substances 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 150000007522 mineralic acids Chemical class 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 229910001341 Crude steel Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 19
- 238000012360 testing method Methods 0.000 description 17
- 239000000203 mixture Substances 0.000 description 8
- 239000008188 pellet Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 235000012241 calcium silicate Nutrition 0.000 description 5
- 229910052918 calcium silicate Inorganic materials 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 229910001653 ettringite Inorganic materials 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 238000001612 separation test Methods 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000004110 Zinc silicate Substances 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910000171 calcio olivine Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 235000013495 cobalt Nutrition 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical group [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- FMQXRRZIHURSLR-UHFFFAOYSA-N dioxido(oxo)silane;nickel(2+) Chemical compound [Ni+2].[O-][Si]([O-])=O FMQXRRZIHURSLR-UHFFFAOYSA-N 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 235000019352 zinc silicate Nutrition 0.000 description 1
- XSMMCTCMFDWXIX-UHFFFAOYSA-N zinc silicate Chemical compound [Zn+2].[O-][Si]([O-])=O XSMMCTCMFDWXIX-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/12—Water-soluble silicates, e.g. waterglass
-
- 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
-
- 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
- C04B22/06—Oxides, Hydroxides
-
- 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
- C04B22/10—Acids or salts thereof containing carbon in the anion
-
- 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
- C04B28/08—Slag cements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Abstract
본 발명은 지반보강용 앵커 주입재에 있어서, 실리케이트 및 칼슘알루미노실리케이트를 포함하는 슬래그시멘트와, 칼슘옥사이드, 설퍼트리옥사이드 및 실리콘다이옥사이드를 포함하는 조강용혼화재가 혼합된 200 내지 400중량부의 시멘트경화재; 50 내지 150중량부의 물; 및 상기 시멘트경화재 및 상기 물과 반응하여 겔(gel)화되는 0.5 내지 2중량부의 가소성주입제;를 포함하는 것을 기술적 요지로 한다. 이에 의해 시멘트경화재에 추가적으로 가소성주입제를 첨가하여 앵커 주입재를 구성함에 의해 수중에서 분리되지 않으면서 압축강도가 높고 수축률이 낮아 안정적으로 앵커의 설치가 가능한 효과가 있다.The present invention relates to an anchor injection material for ground reinforcement, comprising 200 to 400 parts by weight of a cement hardening material mixed with slag cement containing silicate and calcium aluminosilicate and a crude steel admixture containing calcium oxide, sulfur trioxide and silicon dioxide; 50 to 150 parts by weight of water; And 0.5 to 2 parts by weight of a plasticizing injection agent that reacts with the cement hardening material and the water to form a gel. As a result, the anchor injection material is formed by adding an additional plastic injection agent to the cement hardening material, which has the effect of enabling stable installation of the anchor with high compressive strength and low shrinkage rate without separation in water.
Description
본 발명은 지반보강용 앵커 주입재에 관한 것으로, 보다 상세하게는 시멘트경화재에 추가적으로 가소성주입제를 첨가함에 의해 수중에서 분리되지 않으면서 압축강도가 높고 수축률이 낮아 안정적으로 앵커의 설치가 가능한 지반보강용 앵커 주입재에 관한 것이다.The present invention relates to an anchor injection material for ground reinforcement. More specifically, the present invention relates to an anchor injection material for ground reinforcement. By adding a plastic injection agent additionally to the cement hardening material, the present invention has high compressive strength and low shrinkage without separating in water, and is used for ground reinforcement that allows stable installation of anchors. It is about anchor injection material.
일반적으로 연약지반이란 수분의 함유가 많거나 뻘충 또는 점토질 지반이나 실트질 지반이 주를 이루는 기초가 불안한 지반으로, 그 위에 구조물을 구축함에 있어서는 지지력이 부족하게 되어 부등침하가 예상된다. 따라서, 연약지반에 구조물을 건설하기 전에는 구조물의 사용용도와 규모에 맞게 지반을 보강하여야 한다. 이와 같이 토목 공사시 연약지반을 보강하는 방법으로는, 파이프 루프 공법과 콘크리트 루프 공법이 공지되어 있다.In general, soft ground is ground with an unstable foundation that contains a lot of moisture or is mainly muddy, clayey, or silty ground. When constructing a structure on it, differential settlement is expected due to a lack of bearing capacity. Therefore, before constructing a structure on soft ground, the ground must be reinforced according to the purpose and size of the structure. As a method of reinforcing soft ground during civil engineering work, the pipe loop method and the concrete loop method are known.
이 중 콘크리트 루프 공법은 연약지반에 유압드릴이나 각종 천공기의 로드 및 비트 등을 이용하여 천공홀을 형성하고, 천공홀에 고압분사 파이프를 주입시킨 후 파이프를 통해 시멘트 밀크 등의 경화제를 고압 분사하여 양생시킴으로써 토사의 붕괴를 방지하는 콘크리트 벽체를 형성하는 방법이다. 이러한 콘크리트 루프 공법은 앵커 시공에도 사용되어지는데, 지반에 앵커 시공을 위한 천공홀을 천공한 후, 천공홀에 시멘트 밀크 또는 시멘트 몰탈 등의 주입재와 함께 앵커를 근입하여, 주입재에 의해 지중에 고결체를 형성함과 아울러 고결체에 앵커를 정착시키면 앵커가 시공되는 공법에 해당한다.Among these, the concrete loop method involves forming a drilling hole in soft ground using a hydraulic drill or the rod and bit of various drilling machines, injecting a high-pressure injection pipe into the drilling hole, and then spraying a high-pressure hardener such as cement milk through the pipe. This is a method of forming a concrete wall that prevents soil collapse by curing it. This concrete loop method is also used in anchor construction. After drilling a hole in the ground for anchor construction, the anchor is inserted into the hole with an injection material such as cement milk or cement mortar, and is solidified in the ground by the injection material. It corresponds to a method of constructing an anchor by forming it and anchoring it to the solidified body.
하지만 기존에 사용되고 있는 앵커 주입재의 경우 시공 후 시간이 지날수록 수축되는 현상에 의해 시공된 앵커가 이탈하는 등의 문제가 발생하는 경우가 많았으며, 특히 기존의 앵커 주입재는 물과 지속적으로 접촉될 경우 물에 의해 분해되어 앵커 주입재의 강도가 낮아지게 되며, 이에 의해 수중에 앵커를 설치하기 어렵다는 문제점이 있었다.However, in the case of the existing anchor injection material, problems such as the anchor being separated due to shrinkage over time after construction often occurred, especially when the existing anchor injection material was in continuous contact with water. As it decomposes with water, the strength of the anchor injection material decreases, which makes it difficult to install the anchor in water.
본 발명으 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 시멘트경화재에 추가적으로 가소성주입제를 첨가함에 의해 수중에서 분리되지 않으면서 압축강도가 높고 수축률이 낮아 안정적으로 앵커의 설치가 가능한 지반보강용 앵커 주입재를 제공하는 것을 목적으로 한다.The present invention was developed to solve the above problems. By adding an additional plastic injection agent to the cement hardening material, the anchor for ground reinforcement has high compressive strength and low shrinkage without being separated in water, enabling stable installation of the anchor. The purpose is to provide injection material.
상기한 목적은, 실리케이트 및 칼슘알루미노실리케이트를 포함하는 슬래그시멘트와, 칼슘옥사이드, 설퍼트리옥사이드 및 실리콘다이옥사이드를 포함하는 조강용혼화재가 혼합된 200 내지 400중량부의 시멘트경화재; 50 내지 150중량부의 물; 및 상기 시멘트경화재 및 상기 물과 반응하여 겔(gel)화되는 0.5 내지 2중량부의 가소성주입제;를 포함하는 것을 특징으로 하는 지반보강용 앵커 주입재에 의해서 달성된다.The above purpose is to provide 200 to 400 parts by weight of a cement hardening material mixed with slag cement containing silicate and calcium aluminosilicate and an admixture for early steel containing calcium oxide, sulfur trioxide and silicon dioxide; 50 to 150 parts by weight of water; and 0.5 to 2 parts by weight of a plastic injection agent that reacts with the cement hardener and the water to form a gel.
여기서, 상기 슬래그시멘트는, 슬래그파우더와 포틀랜드시멘트가 슬래그파우더 : 포틀랜드시멘트 = 5:5 내지 3:7 중량비로 혼합된 것이 바람직하다.Here, the slag cement is preferably a mixture of slag powder and Portland cement in a weight ratio of slag powder: Portland cement = 5:5 to 3:7.
또한, 상기 가소성주입제는, 소듐실리케이트를 무기산 또는 유기산과 4:1 내지 6:1 중량비로 반응시켜 상기 소듐실리케이트의 알칼리 성분을 중화시켜 분말화하고, 분말화된 상기 소듐실리케이트를 탄산칼슘과 5:1 내지 8:1 중량비로 혼합한 것이 바람직하다.In addition, the plastic injection agent is powdered by neutralizing the alkaline component of the sodium silicate by reacting sodium silicate with an inorganic acid or organic acid at a weight ratio of 4:1 to 6:1, and mixing the powdered sodium silicate with calcium carbonate and 5:1. It is preferable to mix at a weight ratio of :1 to 8:1.
이뿐만 아니라, 상기 앵커 주입재는, pH 6.62 내지 7.32로 이루어진 것이 바람직하며, 상기 시멘트경화재 300중량부, 상기 물 138중량부 및 상기 가소성주입제 1.5중량부로 이루어진 것이 바람직하다.In addition, the anchor injection material is preferably composed of pH 6.62 to 7.32, and is preferably composed of 300 parts by weight of the cement hardener, 138 parts by weight of the water, and 1.5 parts by weight of the plastic injection agent.
상술한 바와 같이 본 발명에 따르면, 시멘트경화재에 추가적으로 가소성주입제를 첨가하여 앵커 주입재를 구성함에 의해 수중에서 분리되지 않으면서 압축강도가 높고 수축률이 낮아 안정적으로 앵커의 설치가 가능한 효과가 있다.As described above, according to the present invention, the anchor injection material is formed by adding a plastic injection agent to the cement hardening material, which has the effect of enabling stable installation of the anchor with high compressive strength and low shrinkage rate without separation in water.
도 1은 본 발명의 실시예에 따른 앵커 주입재의 압축강도의 시험을 위한 시험장치 사진이고,
도 2는 실시예 및 비교예에 따른 pH 시험 결과를 나타낸 그래프이고,
도 3은 실시예 및 비교예에 따른 수중 불분리 시험 결과를 나타낸 사진이고,
도 4는 실시예 및 비교예에 따른 수축률 시험 결과를 나타낸 사진이다.Figure 1 is a photograph of a testing device for testing the compressive strength of an anchor injection material according to an embodiment of the present invention.
Figure 2 is a graph showing pH test results according to Examples and Comparative Examples,
Figure 3 is a photograph showing the results of an underwater non-separation test according to Examples and Comparative Examples;
Figure 4 is a photograph showing the results of shrinkage test according to Examples and Comparative Examples.
이하, 본 발명의 기술적 사상을 첨부된 도면을 사용하여 더욱 구체적으로 설명한다. 첨부된 도면은 본 발명의 기술적 사상을 더욱 구체적으로 설명하기 위하여 도시한 일예에 불과하므로 본 발명의 기술적 사상이 첨부된 도면의 형태에 한정되는 것은 아니다.Hereinafter, the technical idea of the present invention will be described in more detail using the attached drawings. The attached drawings are only an example to explain the technical idea of the present invention in more detail, so the technical idea of the present invention is not limited to the form of the attached drawings.
도 1은 본 발명의 실시예에 따른 앵커 주입재의 압축강도의 시험을 위한 시험장치 사진이고, 도 2는 실시예 및 비교예에 따른 pH 시험 결과를 나타낸 그래프이고, 도 3은 실시예 및 비교예에 따른 수중 불분리 시험 결과를 나타낸 사진이고, 도 4는 실시예 및 비교예에 따른 수축률 시험 결과를 나타낸 사진이다.Figure 1 is a photograph of a testing device for testing the compressive strength of an anchor injection material according to an example of the present invention, Figure 2 is a graph showing pH test results according to examples and comparative examples, and Figure 3 is an example and comparative example. This is a photograph showing the results of an underwater non-separation test according to , and Figure 4 is a photograph showing the results of a shrinkage rate test according to Examples and Comparative Examples.
일반적으로 시멘트는 Alite(3CaO·SiO2, C3S), Belite(2CaO·SiO2, C2S), Felite(4CaO·Al2O3·Fe2O3, C4AF), 알루민산 삼석회(3CaO·Al2O3, C3A)의 4가지의 주요 조성물로 이루어지는데, 특히 시멘트 강도의 대부분을 차지하는 것은 C3S 및 C2S 이다. 이러한 조성물은 시멘트의 주원료가 되는 칼슘옥사이드(CaO), 실리콘옥사이드(SiO2), 알루미늄옥사이드(Al2O3), 아이론옥사이드(Fe2O3)의 혼합비에 따라 시멘트의 여러 가지 성질들이 변하게 되는데, 본 발명에서는 슬래그시멘트에 칼슘옥사이드가 주성분인 조강용혼화재를 일정량 혼합하면서 이와 같은 C3S 및 C2S의 혼합비율을 조절하였다.In general, cement is Alite (3CaO·SiO 2 , C 3 S), Belite (2CaO·SiO 2 , C 2 S), Felite (4CaO·Al 2 O 3 ·Fe 2 O 3 , C 4 AF), and aluminic acid. It consists of four main components of lime (3CaO·Al 2 O 3 and C 3 A), and in particular, C 3 S and C 2 S account for most of the cement strength. In this composition, various properties of cement change depending on the mixing ratio of calcium oxide (CaO), silicon oxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ), which are the main raw materials of cement. , In the present invention, the mixing ratio of C 3 S and C 2 S was adjusted while mixing a certain amount of crude steel admixture, the main component of which is calcium oxide, with slag cement.
본 발명의 실시예에 따른 지반보강용 앵커 주입재는, 시멘트경화재, 가소성주입제 및 물을 포함한다.The anchor injection material for ground reinforcement according to an embodiment of the present invention includes a cement hardening material, a plastic injection agent, and water.
시멘트경화재는, 슬래그시멘트와 조강용혼화재를 혼합하여 형성한 것으로, 본 발명에 따른 앵커 주입재의 대부분을 차지하는 구성에 해당한다. Cement hardening material is formed by mixing slag cement and crude steel admixture, and constitutes the majority of the anchor injection material according to the present invention.
이러한 시멘트경화재 중 슬래그시멘트는, 슬래그파우더와 포틀랜드시멘트가 혼합되어 형성되는 것으로, 슬래그파우더 : 포틀랜드시멘트 = 5:5 내지 3:7 중량비로 혼합되는 것이 바람직하다. 이와 같은 중량비로 혼합되는 슬래그시멘트는 2.9 내지 3.0의 비중을 가지게 되며, 블레인 분말도는 4,000 내지 5,000㎠/g으로 형성될 수 있다.Among these cement hardening materials, slag cement is formed by mixing slag powder and Portland cement, and is preferably mixed in a weight ratio of slag powder: Portland cement = 5:5 to 3:7. Slag cement mixed at this weight ratio has a specific gravity of 2.9 to 3.0, and the blank fineness can be 4,000 to 5,000 cm2/g.
슬래그시멘트에 포함된 슬래그파우더는, 유리질의 비금속에 해당하는 실리케이트(silicate, SiO44-) 및 칼슘알루미노실리케이트(calcium aluminosilicate, CaAl2Si2O8)가 포함된 구성에 해당한다. 여기서 실리케이트는 마그네슘실리케이트, 칼슘실리케이트, 징크실리케이트, 코발트실리케이트, 니켈실리케이트, 알루미늄실리케이트, 세슘실리케이트 및 이의 혼합으로 이루어진 군으로부터 선택되는 것이 바람직하나 이에 한정되지는 않는다.Slag powder included in slag cement is composed of silicate (SiO 4 4-) and calcium aluminosilicate (CaAl 2 Si 2 O 8 ), which are glassy non-metals. Here, the silicate is preferably selected from the group consisting of magnesium silicate, calcium silicate, zinc silicate, cobalt silicate, nickel silicate, aluminum silicate, cesium silicate, and mixtures thereof, but is not limited thereto.
또한 슬래그파우더와 함께 혼합되어 슬래그시멘트를 형성하는 포틀랜드시멘트는, 실리콘옥사이드(silicon oxide, SiO2), 알루미늄옥사이드(aluminum oxide, Al2O3), 아이론옥사이드(iron oxide, Fe2O3), 칼슘옥사이드(carcium oxide, CaO), 마그네슘옥사이드(magnesium oxide, MgO), 설퍼옥사이드(sulfur oxide, SO3) 및 이의 혼합으로 이루어진 군으로부터 선택된다.In addition, Portland cement, which is mixed with slag powder to form slag cement, includes silicon oxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), iron oxide (Fe 2 O 3 ), It is selected from the group consisting of calcium oxide (CaO), magnesium oxide (MgO), sulfur oxide (SO 3 ), and mixtures thereof.
따라서 슬래그파우더와 포틀랜드시멘트가 혼합된 슬래그시멘트는 하기의 표 1과 같은 중량부로 혼합된다.Therefore, slag cement mixed with slag powder and Portland cement is mixed in parts by weight as shown in Table 1 below.
이 중 슬래그시멘트의 가장 바람직한 혼합 중량부는, 실리콘옥사이드 22.0중량부, 알루미늄옥사이드 5.0중량부, 아이론옥사이드 1.0중량부, 칼슘옥사이드 52.0중량부, 마그네슘옥사이드 3.0중량부, 설퍼옥사이드 1.0중량부, 칼슘실리케이트 25.0중량부, 칼슘알루미노실리케이트 25.0중량부에 해당한다.Among these, the most preferable mixed weight parts of slag cement are 22.0 parts by weight of silicon oxide, 5.0 parts by weight of aluminum oxide, 1.0 parts by weight of iron oxide, 52.0 parts by weight of calcium oxide, 3.0 parts by weight of magnesium oxide, 1.0 parts by weight of sulfur oxide, and 25.0 parts by weight of calcium silicate. Part by weight, corresponds to 25.0 parts by weight of calcium aluminosilicate.
이와 같은 조성으로 이루어지는 슬래그시멘트는 물과 혼합시 수화발열량이 적고, 가용성 알루미늄옥사이드 및 실리콘옥사이드 성분이 수화반응시 생성된 유리수산화칼슘과 불용성의 안정한 수화물로 반응하기 때문에, 해수, 공장폐수, 하수 등에 대한 내화학적 저항성이 크고 내열성과 수밀성이 우수하다.Slag cement with this composition has a low hydration calorific value when mixed with water, and because the soluble aluminum oxide and silicon oxide components react with the free calcium hydroxide generated during the hydration reaction into an insoluble stable hydrate, it is good for seawater, factory wastewater, sewage, etc. It has high chemical resistance and excellent heat resistance and watertightness.
시멘트경화재 중 조강용혼화재는, 칼슘옥사이드를 주성분으로 하여 설퍼옥사이드 및 실리콘옥사이드가 혼합된 구성에 해당한다. 이와 같은 조강용혼화재의 비중은 2.3 내지 2.5에 해당하며, 조강용혼화재의 상세한 혼합 중량부는 표 2를 통해 확인 가능하다.Among cement hardening materials, admixtures for crude steel are composed of a mixture of sulfur oxide and silicon oxide with calcium oxide as the main ingredient. The specific gravity of such an admixture for early steel is 2.3 to 2.5, and the detailed mixed weight of the admixture for early steel can be confirmed through Table 2.
이와 같은 조강용혼화재의 가장 바람직한 혼합 중량부는, 칼슘옥사이드 65.0중량부, 설퍼옥사이드 20.0중량부, 실리콘옥사이드 2.0중량부에 해당한다.The most preferable mixing weight of such an admixture for crude steel is 65.0 parts by weight of calcium oxide, 20.0 parts by weight of sulfur oxide, and 2.0 parts by weight of silicon oxide.
가소성주입제는, 시멘트경화재 및 물과 혼합하게 되면 수초 후에 겔(gel)화되어 가소성을 확보할 수 있는 무기질계 성분으로, 가소성주입제를 물과 혼합하면 칼슘실리케이트수화물(C3S2H3, C-S-H) 및 칼슘하이드록사이드(Ca(OH)2)를 생성하며, 이는 시멘트경화재와 반응하여 AFT 결정체의 에트링자이트(ettringite)를 생성한다. 여기서 에트링자이트는 CaO·Al2O3·3SO3·32H2O 또는 3CaO·Al2O3·3CaSO4·32H2O에 해당한다. 생성된 AFT 결정체의 에트링자이트는 수초 간 유동성을 확보한 후 순간적으로 유동성이 없어지는 가소성을 발휘하게 되며, 또한 한정주입 및 재료 분리 저항성이 확보된다.The plasticizing injectant is an inorganic ingredient that secures plasticity by gelling after a few seconds when mixed with cement hardener and water. When the plasticizing injectant is mixed with water, it forms calcium silicate hydrate (C 3 S 2 H 3 , CSH) and calcium hydroxide (Ca(OH) 2 ), which react with the cement hardener to produce AFT crystals of ettringite. Here, ettringite corresponds to CaO·Al2O 3 ·3SO 3 ·32H 2 O or 3CaO·Al 2 O 3 ·3CaSO 4 ·32H 2 O. The ettringite of the generated AFT crystals secures fluidity for a few seconds and then exhibits plasticity that instantly loses fluidity, and also ensures resistance to limited injection and material separation.
이러한 가소성주입제는 소듐실리케이트(sodium silicate, Na2SiO3)를 무기산(inorganic aicd) 또는 유기산(organic acid)과 4:1 내지 6:1의 중량비로 반응시켜 소듐실리케이트의 알칼리 성분을 중화시킨 것으로, 산성 또는 중성의 콜로이드성 소듐실리케이트를 대기 중에서 응고시켜 분말화하고, 분말화된 소듐실리케이트를 탄산칼슘(CaCO3)과 5:1 내지 8:1의 중량비로 혼합한 것에 해당한다. 여기서 소듐실리케이트의 중화를 위해 사용되는 무기산은 황산, 염산, 인산 및 이의 혼합으로 이루어진 군으로부터 선택되는 것이 바람직하나 이에 한정되지는 않는다.This plastic injection agent is made by neutralizing the alkaline component of sodium silicate by reacting sodium silicate (Na 2 SiO 3 ) with inorganic acid or organic acid at a weight ratio of 4:1 to 6:1. , acidic or neutral colloidal sodium silicate is solidified in the air and powdered, and the powdered sodium silicate is mixed with calcium carbonate (CaCO 3 ) at a weight ratio of 5:1 to 8:1. Here, the inorganic acid used to neutralize sodium silicate is preferably selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, and mixtures thereof, but is not limited thereto.
이와 같이 가소성주입제가 혼합된 본 발명의 앵커 주입재는 가소성 특성으로 한정주입이 가능하고 유실되지 않는다는 특징이 있으며, 수중 불분리성으로 인해 앵커 주입재를 수중에서도 안정적으로 주입 및 강도 확보가 가능하다, 또한, 앵커 주입재는 무기질계로 무공해성이고, 수축률이 0%에 가까운 무수축성 효과가 있다.The anchor injection material of the present invention, which is a mixture of plastic injection agents in this way, has the characteristic of allowing limited injection and not being lost due to its plastic properties, and due to its inseparability in water, it is possible to stably inject and secure the strength of the anchor injection material even in water. , the anchor injection material is inorganic, non-polluting, and has a non-shrinking effect with a shrinkage rate close to 0%.
이와 같이 시멘트경화재, 가소성주입제 및 물을 포함하는 앵커 주입재는, 각각 시멘트경화재 200 내지 400중량부, 가소성주입제 0.5 내지 2중량부, 물 50 내지 150중량부로 이루어지는 것이 바람직한데, 가소성주입제가 0.5중량부 미만으로 첨가될 경우 앵커 주입재가 수중에 설치될 때 물에서 분리되어 앵커의 안정적인 설치가 불가능해지고, 가소성주입제가 2중량부를 초과할 경우 그 만큼 시멘트경화재의 첨가량이 감소하여 앵커 주입재가 제 역할을 수행하지 못하게 된다. 또한, 물이 50중량부 미만으로 첨가될 경우 시멘트경화재와 가소성주입제 간의 균일한 혼합이 이루어지지 않으며 가소성주입제가 물과 반응하여 에트링자이트를 제대로 형성하지 않을 수 있으며, 물이 150중량부를 초과할 경우 점도가 낮은 앵커 주입재가 형성되어 앵커 주입재의 안정적인 시공이 어려울 수 있다.In this way, the anchor injection material containing cement hardener, plastic injection agent, and water is preferably composed of 200 to 400 parts by weight of cement hardener, 0.5 to 2 parts by weight of plastic injection agent, and 50 to 150 parts by weight of water, respectively, with the plastic injection agent being 0.5 parts by weight. If added in less than 2 parts by weight, the anchor injection material separates from the water when installed in water, making stable installation of the anchor impossible. If the plastic injection agent exceeds 2 parts by weight, the amount of cement hardener added is reduced accordingly, so the anchor injection material does not function properly. cannot be performed. In addition, if less than 50 parts by weight of water is added, uniform mixing between the cement hardener and the plastic injection agent may not be achieved, and the plastic injection agent may not react with water to properly form ettringite. If it is exceeded, an anchor injection material with low viscosity is formed, which may make stable construction of the anchor injection material difficult.
이하에서는 본 발명의 실시예를 좀 더 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in more detail.
<실시예><Example>
슬래그시멘트와 조강용혼화재가 9:1 내지 7:3으로 혼합된 시멘트경화재 300중량부, 가소성주입제 1.5중량부 및 물 138중량부를 포함하는 앵커 주입재의 1m3당 혼합 비율은 표 3과 같다. 이러한 앵커 주입재를 실시예로 하고, 시중에 판매되는 일반 시멘트를 비교예로 하여 각각의 압축강도 시험, pH 시험, 수중 불분리 시험, 수축 시험을 실시하였다.The mixing ratio per 1 m 3 of the anchor injection material containing 300 parts by weight of cement hardener mixed with slag cement and early steel admixture at a ratio of 9:1 to 7:3, 1.5 parts by weight of plastic injection agent, and 138 parts by weight of water is shown in Table 3. Compressive strength tests, pH tests, underwater non-separation tests, and shrinkage tests were conducted using these anchor injection materials as examples and commercially available general cement as comparative examples.
1) 압축강도 시험1) Compressive strength test
실시예에 따른 앵커 주입재와 비교예에 따른 시멘트를 이용하여 시공한 후, 도 1에 도시된 압축강도 측정기를 이용하여 각각의 압축강도를 비교하였다. 비교 결과 표 4에 나타난 것과 같이 본 발명에 따른 앵커 주입재가 초기 압축강도가 높았으며, 시간이 지나더라도 압축강도가 더 높은 채로 유지되는 것을 확인할 수 있었다.After construction using the anchor injection material according to the example and the cement according to the comparative example, the compressive strength of each was compared using the compressive strength measuring device shown in FIG. 1. As a result of the comparison, as shown in Table 4, it was confirmed that the anchor injection material according to the present invention had a high initial compressive strength, and that the compressive strength remained higher over time.
2) pH 시험2) pH test
실시예에 따른 앵커 주입재와 비교예에 따른 시멘트를 시공한 후, 시간에 따른 pH 변화를 확인하는 시험을 실시하였다. 그 결과 표 5 및 도 2에 나타난 것과 같이 시험 전에는 실시예와 비교예 모두 중성에 가까운 pH였으나, 시간이 지날수록 실시예는 중성을 유지하는 데 비해 비교예의 경우 알칼리성으로 pH가 급격하게 증가하는 것을 확인할 수 있었다. 이는 본 발명의 앵커 주입제가 중화처리된 가소성주입제를 사용하기 때문에 pH가 중성으로 유지되는 것으로 판단된다.After constructing the anchor injection material according to the example and the cement according to the comparative example, a test was conducted to check the change in pH over time. As a result, as shown in Table 5 and Figure 2, before the test, both the Examples and Comparative Examples had a pH close to neutral, but over time, the pH of the Examples maintained neutrality, while the pH of the Comparative Examples rapidly increased to alkaline. I was able to confirm. It is believed that the pH is maintained at neutral because the anchor injection agent of the present invention uses a neutralized plastic injection agent.
3) 수중 불분리 시험3) Underwater non-separation test
실시예 및 비교예를 통해 펠렛을 형성하고, 물을 채운 수조에 각 펠렛을 투입한 후 시간에 따라 수중에서 어느 정도 분리되는 지 확인하는 시험을 실시하였다. 그 결과 도 3에 도시된 바와 같이 비교예를 수조에 투입하게 되면 비교예의 펠렛이 수중에서 그대로 분리되는 것을 확인할 수 있었으며, 비교예를 수조에 투입한 후 60분이 지나서는 펠렛 형체를 알아볼 수 없을 정도로 분리가 된 것을 확인할 수 있었다. Pellets were formed through Examples and Comparative Examples, and each pellet was put into a water tank filled with water, and then a test was conducted to determine the extent to which it was separated in water over time. As a result, as shown in Figure 3, when the comparative example was put into the water tank, it was confirmed that the pellets of the comparative example were separated from the water, and 60 minutes after adding the comparative example into the water tank, the shape of the pellets was unrecognizable. I was able to confirm that it was separated.
이와 비교하여 실시예의 경우 수조에 펠렛을 투입한 직후에 펠렛이 분리되지 않고 제 형상을 유지하는 것을 확인할 수 있으며, 펠렛 투입 후 60분이 지난 후에도 수중에서 분리되지 않고 상태를 유지하는 것을 확인할 수 있다.In comparison, in the case of the example, it can be confirmed that the pellets do not separate and maintain their shape immediately after the pellets are added to the water tank, and it can be confirmed that the pellets do not separate in the water and maintain their shape even after 60 minutes after the pellets are added.
4) 수축률 시험4) Shrinkage test
도 4와 같이 실시예 및 비교예를 통해 타설한 후 각각의 수축률을 비교한 결과를 표 6 및 표 7을 통해 확인하였다. 그 결과 비교예의 경우 표 6과 같이 시간이 지날수록 소재가 점점 수축하는 것을 확인한 것에 비해, 실시예의 경우 표 7과 같이 시간이 지나도 수축이 발생하지 않고 제 형상을 그대로 유지하는 것을 확인할 수 있었다.As shown in Figure 4, the results of comparing the shrinkage rates after pouring through Examples and Comparative Examples were confirmed in Tables 6 and 7. As a result, in the case of the comparative example, it was confirmed that the material gradually shrunk over time as shown in Table 6, whereas in the case of the example, it was confirmed that the material maintained its shape without shrinking over time as shown in Table 7.
이와 같은 구성으로 이루어진 본 발명은 지반보강용 앵커 주입재는, 시멘트경화재에 추가적으로 가소성주입제를 첨가하여 앵커 주입재를 구성함에 의해 수중에서 분리되지 않으면서 압축강도가 높고 수축률이 낮아 안정적으로 앵커의 설치가 가능한 효과가 있다.The present invention, which consists of the above-mentioned structure, is an anchor injection material for ground reinforcement, which is formed by adding a plastic injection agent additionally to the cement hardening material, so that it does not separate in water and has high compressive strength and low shrinkage rate, enabling stable installation of the anchor. There is a possible effect.
본 발명은 상기한 실시예에 한정되지 아니하며, 적용범위가 다양함은 물론이고, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 다양한 변형 실시가 가능한 것은 물론이다.The present invention is not limited to the above-described embodiments, and the scope of application is diverse. Of course, various modifications and implementations are possible without departing from the gist of the present invention as claimed in the claims.
Claims (5)
138중량부의 물; 및
상기 시멘트경화재 및 상기 물과 반응하여 겔(gel)화되는 1.5중량부의 가소성주입제;를 포함하여 pH 6.62 내지 7.32로 이루어지며,
상기 가소성주입제는,
소듐실리케이트를 무기산 또는 유기산과 4:1 내지 6:1 중량비로 반응시켜 상기 소듐실리케이트의 알칼리 성분을 중화시켜 분말화하고, 분말화된 상기 소듐실리케이트를 탄산칼슘과 5:1 내지 8:1 중량비로 혼합한 것을 특징으로 하는 지반보강용 앵커 주입재.300 parts by weight of a cement hardening material mixed with slag cement containing silicate and calcium aluminosilicate and an admixture for early steel containing calcium oxide, sulfur trioxide and silicon dioxide;
138 parts by weight water; and
It has a pH of 6.62 to 7.32, including 1.5 parts by weight of a plasticizing injection agent that reacts with the cement hardener and water to form a gel,
The plastic injection agent is,
Sodium silicate is reacted with an inorganic acid or organic acid at a weight ratio of 4:1 to 6:1 to neutralize the alkaline component of the sodium silicate and powdered, and the powdered sodium silicate is mixed with calcium carbonate at a weight ratio of 5:1 to 8:1. Anchor injection material for ground reinforcement, characterized in that it is mixed.
상기 슬래그시멘트는,
슬래그파우더와 포틀랜드시멘트가 슬래그파우더 : 포틀랜드시멘트 = 5:5 내지 3:7 중량비로 혼합된 것을 특징으로 하는 지반보강용 앵커 주입재.According to clause 1,
The slag cement is,
An anchor injection material for ground reinforcement, characterized in that slag powder and Portland cement are mixed in a weight ratio of slag powder: Portland cement = 5:5 to 3:7.
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| KR100906234B1 (en) | 2008-05-06 | 2009-07-07 | 노재호 | Plastic grout composite for filling |
| KR100984778B1 (en) | 2010-04-01 | 2010-10-01 | 지산특수토건주식회사 | Slag mortar paste and high alkali salt contained in it |
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