KR20230057774A - Eco-friendly concrete composition for ocean - Google Patents
Eco-friendly concrete composition for ocean Download PDFInfo
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- KR20230057774A KR20230057774A KR1020210141959A KR20210141959A KR20230057774A KR 20230057774 A KR20230057774 A KR 20230057774A KR 1020210141959 A KR1020210141959 A KR 1020210141959A KR 20210141959 A KR20210141959 A KR 20210141959A KR 20230057774 A KR20230057774 A KR 20230057774A
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- 239000004567 concrete Substances 0.000 title claims abstract description 51
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011398 Portland cement Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000008213 purified water Substances 0.000 claims abstract description 8
- 241000237502 Ostreidae Species 0.000 claims description 9
- 235000020636 oyster Nutrition 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 239000004475 Arginine Substances 0.000 claims description 4
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims description 4
- 239000003864 humus Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 5
- 239000004615 ingredient Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241000195493 Cryptophyta Species 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000035755 proliferation Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000242757 Anthozoa Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007922 dissolution test Methods 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
- C04B14/30—Oxides other than silica
- C04B14/308—Iron oxide
-
- 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
-
- 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
- C04B14/361—Soil, e.g. laterite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
- C04B20/008—Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/14—Peptides; Proteins; 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
- 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
- C04B28/04—Portland 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/24—Sea water resistance
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Nanotechnology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Artificial Fish Reefs (AREA)
Abstract
Description
본 발명은 해양용 친환경 콘크리트용 조성물에 관한 것으로, 더욱 상세하게는 해양생태환경에 적합하고, 슬래그가 혼합되어 염수에 대해 우수한 내구성을 나타낼 뿐만 아니라, 자중을 증가시켜 외력 및 충격에 대한 저항능력 향상으로 우수한 기계적 강도를 나타내는 콘크리트를 제공하는 해양용 친환경 콘크리트용 조성물에 관한 것이다.The present invention relates to a composition for eco-friendly concrete for marine use, and more particularly, is suitable for the marine ecological environment, exhibits excellent durability against salt water by mixing slag, and improves resistance to external force and impact by increasing its own weight. It relates to a composition for marine eco-friendly concrete that provides concrete exhibiting excellent mechanical strength.
수중에 설치되는 인공 구조물은 연안 및 해안에서 다양한 목적으로 설치되며, 주로 해양 생태계 환경 조성을 위한 목적으로 이용되는 경우가 많은데, 이러한 수중 구조물은 수질정화, 어종 보호, 어종 분포 범위 확대, 패류증식 또는 해중림조성 등의 목적으로 설치되고 있다.Artificial structures installed underwater are installed for various purposes in coastal and coastal areas, and are often used for the purpose of creating a marine ecosystem environment. It is installed for the purpose of composition, etc.
또한, 현재 해양 생태계 환경 조성에 대한 중요성이 강조되고 있어 이를 위한 자치단체별 시설 투자의 증가로 어획생산성, 해양생물종 다양성 및 해양생태복원 등의 가시적 성과를 나타내는 결과물들이 보고되고 있다.In addition, as the importance of creating a marine ecosystem environment is currently being emphasized, results showing tangible results such as fishing productivity, marine biodiversity, and marine ecology restoration are reported due to the increase in facility investment by local governments.
특히, 해양에 설치되는 수중 인공구조물은 안정성이 우선시되어야 하기 때문에, 외력에 대해 구조물의 이동, 전도, 침하와 같은 특성을 고려해 만족할 정도의 중량과 형상을 가져야만 하고, 이와 동시에 수중 구조물의 원초적인 목적인 어류의 위집 또는 패류의 증식, 해중림 조성 및 산호복원 등을 만족할 수 있도록 관련 기능을 보유해야 한다.In particular, since stability of an underwater artificial structure installed in the ocean should be prioritized, it must have a satisfactory weight and shape in consideration of characteristics such as movement, overturning, and sinking of the structure against external forces, and at the same time, the original purpose of underwater structures Relevant functions must be possessed to satisfy fish nesting, proliferation of shellfish, creation of marine forests, and restoration of corals.
상기에 기재된 바와 같은 기능을 보유할 수 있는 수중 인공구조물로서 콘크리트 블록이나 콘크리트로 이루어진 수중 구조물에 대한 다양한 연구가 진행되고 있는데, 종래의 콘크리트 블록 및 콘크리트로 이루어진 수중 구조물은, 강알칼리성을 나타내는 콘크리트의 특성 때문에, 설치 초기에 수초 및 조류 등의 증식이 어려우며, 어류, 수초 및 조류 등에 대한 친화력이 낮고, 착생된 조류 등이 떨어져 나간 자리에는 백화현상이 발생하기 때문에, 오히려 수중이나 해중 생태계를 황폐화시키는 요인으로 작용할 수 있는 문제점이 있었다.Various studies are being conducted on underwater structures made of concrete blocks or concrete as underwater artificial structures that can have the functions described above. Due to its characteristics, it is difficult to propagate aquatic plants and algae in the early stage of installation, has a low affinity for fish, aquatic plants and algae, and bleaching occurs where epiphytic algae have fallen off, which rather devastates the aquatic or aquatic ecosystem. There was a problem that could act as a factor.
본 발명의 목적은 해양생태환경에 적합하고, 슬래그가 혼합되어 염수에 대해 우수한 내구성을 나타낼 뿐만 아니라, 자중을 증가시켜 외력 및 충격에 대한 저항능력 향상으로 우수한 기계적 강도를 나타내는 콘크리트를 제공하는 해양용 친환경 콘크리트용 조성물을 제공하는 것이다.An object of the present invention is to provide a concrete that is suitable for the marine ecological environment, exhibits excellent durability against salt water by mixing slag, and exhibits excellent mechanical strength by increasing its self-weight to improve resistance to external force and impact. It is to provide a composition for eco-friendly concrete.
본 발명의 다른 목적은 해양생물의 증식효과와 내구성능을 향상시킬 수 있는 콘크리트 구조물로 제조될 수 있는 해양용 친환경 콘크리트용 조성물을 제공하는 것이다.Another object of the present invention is to provide a composition for marine eco-friendly concrete that can be manufactured into a concrete structure capable of improving the proliferation effect and durability of marine organisms.
본 발명의 목적은 저 품위 철광석, 포틀랜드 시멘트, 굴패각, 혼화재, 잔골재 및 정제수로 이루어지는 것을 특징으로 하는 해양용 친환경 콘크리트용 조성물을 제공함에 의해 달성된다.An object of the present invention is achieved by providing a composition for marine eco-friendly concrete, characterized in that it consists of low-grade iron ore, Portland cement, oyster shell, admixture, fine aggregate and purified water.
본 발명의 바람직한 특징에 따르면, 상기 해양용 친환경 콘크리트용 조성물은 저 품위 철광석 100 중량부, 포틀랜드 시멘트 22 내지 28 중량부, 굴패각 4 내지 6 중량부, 혼화재 8 내지 12 중량부, 잔골재 60 내지 100 중량부 및 정제수 18 내지 22 중량부로 이루어지는 것으로 한다.According to a preferred feature of the present invention, the composition for marine eco-friendly concrete includes 100 parts by weight of low-grade iron ore, 22 to 28 parts by weight of Portland cement, 4 to 6 parts by weight of oyster shells, 8 to 12 parts by weight of admixture, and 60 to 100 parts by weight of fine aggregate. It is made of 18 to 22 parts by weight of parts and purified water.
본 발명의 더 바람직한 특징에 따르면, 상기 굴폐각은 50 내지 150㎛의 입자크기를 갖는 것으로 한다.According to a more preferred feature of the present invention, the bending angle is to have a particle size of 50 to 150㎛.
본 발명의 더욱 바람직한 특징에 따르면, 상기 혼화재는 슬래그, 플라이애쉬 및 포졸란으로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the admixture is made of at least one selected from the group consisting of slag, fly ash and pozzolan.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 해양용 친환경 콘크리트용 조성물에는 상기 저 품위 철광석 100 중량부 대비 아르기닌 4 내지 6 중량부 및 부식토 4 내지 6 중량부가 더 함유되는 것으로 한다.According to a more preferred feature of the present invention, the composition for marine eco-friendly concrete further contains 4 to 6 parts by weight of arginine and 4 to 6 parts by weight of humus soil based on 100 parts by weight of the low-grade iron ore.
본 발명에 따른 해양용 친환경 콘크리트용 조성물은 해양생태환경에 적합하고, 슬래그가 혼합되어 염수에 대해 우수한 내구성을 나타낼 뿐만 아니라, 자중을 증가시켜 외력 및 충격에 대한 저항능력 향상으로 우수한 기계적 강도를 나타내는 콘크리트를 제공하는 탁월한 효과를 나타낸다.The composition for marine eco-friendly concrete according to the present invention is suitable for the marine ecological environment, exhibits excellent durability against salt water by mixing slag, and exhibits excellent mechanical strength by increasing its self-weight to improve resistance to external force and impact. It shows an excellent effect to provide concrete.
또한, 해양생물의 증식효과와 내구성능을 향상시킬 수 있는 콘크리트 구조물을 제공하는 탁월한 효과를 나타낸다.In addition, it shows an excellent effect of providing a concrete structure capable of improving the proliferation effect and durability of marine organisms.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.Hereinafter, a preferred embodiment of the present invention and the physical properties of each component will be described in detail, but this is to be explained in detail so that a person having ordinary knowledge in the art to which the present invention belongs can easily practice the invention, This is not meant to limit the technical spirit and scope of the present invention.
본 발명에 따른 해양용 친환경 콘크리트용 조성물은 저 품위 철광석, 포틀랜드 시멘트, 굴패각, 혼화재, 잔골재 및 정제수로 이루어지며, 저 품위 철광석 100 중량부, 포틀랜드 시멘트 22 내지 28 중량부, 굴패각 4 내지 6 중량부, 혼화재 8 내지 12 중량부, 잔골재 60 내지 100 중량부 및 정제수 18 내지 22 중량부로 이루어지는 것이 바람직하다.The composition for marine eco-friendly concrete according to the present invention is composed of low-grade iron ore, Portland cement, oyster shells, admixture, fine aggregate, and purified water, 100 parts by weight of low-grade iron ore, 22 to 28 parts by weight of Portland cement, and 4 to 6 parts by weight of oyster shells. , It is preferably composed of 8 to 12 parts by weight of the admixture, 60 to 100 parts by weight of fine aggregate, and 18 to 22 parts by weight of purified water.
상기 저 품위 철광석은 본 발명에 따른 해양용 친환경 콘크리트용 조성물의 주재료가 되는 성분으로, 내마모성이 우수하며 해양 파도 및 충격에 의한 마모성이 낮아 우수한 내마모성과 기계적 물성을 나타내는 콘크리트를 제공하는 역할을 한다.The low-grade iron ore is a main component of the composition for marine eco-friendly concrete according to the present invention, and serves to provide concrete with excellent abrasion resistance and low abrasion resistance due to ocean waves and impact, exhibiting excellent abrasion resistance and mechanical properties.
또한, 저 품위 철광석은 비중이 약 3.15로 일반 골재의 비중인 2.65보다 크므기 때문에, 콘크리트의 자중이 늘어 외력이나 전도 방지 및 파도 및 태풍과 같은 충격으로 인한 구조물의 이동을 방지하는 역할을 한다.In addition, since low-grade iron ore has a specific gravity of about 3.15, which is greater than that of general aggregates, which is 2.65, the weight of concrete increases, preventing external force or tipping and preventing movement of structures due to impacts such as waves and typhoons.
일반적으로 철광석은 철 함량이 60% 이상인 것을 부광, 40% 이하인 것을 빈광, 25% 이하인 것을 저 품위 광이라고 한다. 상기 빈광은 제철용으로는 사용되지 않으나 고 품위 광석 즉, 부광에 혼합되어 쓰이고, 상기 저 품위 광은 사용되지 않은 채 철광산 주위에 적치됨으로서 환경 훼손 및 오염을 발생시키기 때문에, 본 발명과 같이 저 품위 철광석을 굵은 골재로 사용하게 되면 친환경적인 콘크리트 구조물을 제공할 수 있다.In general, iron ores with an iron content of 60% or more are called rich ores, 40% or less are poor ores, and 25% or less are called low-grade ores. The empty ore is not used for iron production, but is mixed with high-grade ore, that is, rich ore, and the low-grade ore is piled up around the iron mine without being used, causing environmental damage and pollution. When high-grade iron ore is used as a coarse aggregate, an eco-friendly concrete structure can be provided.
상기 저 품위 철광석의 단위용적중량과 흡수율 및 마모율을 KS F 2505, KS F 2503 및 KS F2508에 의거하여 실험한 결과를 표 1에 나타내었다.Table 1 shows the test results of unit volume weight, absorption rate and wear rate of the low-grade iron ore in accordance with KS F 2505, KS F 2503 and KS F2508.
<표 1><Table 1>
상기 표 1에 나타낸 것처럼, 폐광에 적치되어 있는 저 품위 철광석의 단위용적중량, 흡수율 및 마모율을 KS F2505, KS F 2503 및 KS F2508에 의거하여 실험한 결과 단위용적중량은 2433kg/m3이고, 흡수율은 0.3%이며, 마모율은 15%이므로 해양용 콘크리트 구조물의 단위용적중량, 흡수율, 마모율을 충분히 만족시킴으로써 굵은 골재를 대체하여 상기 저 품위 철광석을 사용할 수 있으며, 해양용 콘크리트 구조물에 골재로 첨가되었을 때, 일반 천연골재보다 흡수율 및 마모율이 적게 나타낼 뿐만 아니라, 강도와 내구성이 우수한 콘크리트 구조물을 제공할 수 있다.As shown in Table 1, as a result of testing the unit volume weight, absorption rate and wear rate of low-grade iron ore piled in an abandoned mine in accordance with KS F2505, KS F 2503 and KS F2508, the unit volume weight was 2433kg/m 3 and the absorption rate Since silver is 0.3% and wear rate is 15%, it is possible to use the low-grade iron ore as a substitute for coarse aggregate by sufficiently satisfying the unit volume weight, water absorption rate, and wear rate of marine concrete structures, and when added as aggregate to marine concrete structures , it is possible to provide a concrete structure with excellent strength and durability, as well as lower water absorption and wear rate than general natural aggregates.
또한, 일반적으로 시멘트의 경우 생산 시 다량의 이산화탄소를 배출하기 때문에, 굴패각과 슬래그가 혼합되어 시멘트를 사용량을 줄이고 친환경 재료인 저 품위 철광석의 함량을 늘이는 과정을 통해 환경오염을 줄일 수 있는 효과를 나타낸다.In addition, since cement generally emits a large amount of carbon dioxide during production, oyster shells and slag are mixed to reduce the amount of cement used and increase the content of low-grade iron ore, an eco-friendly material, to reduce environmental pollution. .
또한, 상기와 같은 저 품위 철광석은 폐광지역에 적치되어 있으므로 유해물질에 의한 오염 여부를 판단하기 위하여 유해물질 용출 시험을 실시하였으며, 그 실험결과를 표 2에 나타내었다.In addition, since the low-grade iron ore as described above is piled up in an abandoned mine area, a harmful substance elution test was conducted to determine whether or not it was contaminated by harmful substances, and the test results are shown in Table 2.
<표 2><Table 2>
상기 표 2에 나타낸 바와 같이, 폐기물공정시험방법에 의거하여 실시된 유해물질 용출시험 결과 납(Pb), 카드뮴(Cd), 산화크롬(CrO4), 수은(Hg), 비소(As), 구리(Cu) 등의 유해물질이 전혀 검출되지 않았으므로 굵은 골재를 대신하여 저 품위 철광석을 사용할 수 있다.As shown in Table 2, as a result of the hazardous substance dissolution test conducted in accordance with the waste process test method, lead (Pb), cadmium (Cd), chromium oxide (CrO4), mercury (Hg), arsenic (As), copper ( Since harmful substances such as Cu) were not detected at all, low-grade iron ore can be used instead of coarse aggregate.
상기 굴패각은 4 내지 6 중량부가 함유되며, 염화물 내구성이 우수하며 칼슘이 다량 함유되어 콘크리트 재료로써 활용이 가능하다. 포틀랜트 시멘트 일부를 굴패각으로 치환하여 사용할 경우 해양 생물에 악영향을 미치지 않는 콘크리트 구조물을 제공할 수 있다.The oyster shell contains 4 to 6 parts by weight, has excellent chloride durability and contains a large amount of calcium, so it can be used as a concrete material. When a portion of Portland cement is replaced with oyster shells, a concrete structure that does not adversely affect marine life can be provided.
또한, 본 발명에서 사용되는 굴패각은 50 내지 150㎛의 입자크기를 나타내는데, 상기의 입자크기를 나타내는 굴패각의 분말은 별도의 소성 가공 없이 상온 건비빔만으로도 콘크리트 강도를 향상시킬 수 있다.In addition, the oyster shell used in the present invention has a particle size of 50 to 150 μm, and the powder of oyster shell having the above particle size can improve the strength of concrete only by dry mixing at room temperature without separate plastic processing.
이때, 상기 굴패각의 입자크기가 50㎛ 미만이면 상기 포틀랜드 시멘트와의 혼합성이 저하되며 뭉침현상이 발생할 수 있고, 상기 굴패각의 입자크기가 150㎛를 초과하게 되면 본 발명에 따른 해양용 친환경 콘크리트용 조성물을 구성하는 각 성분과 고르게 혼합되지 못해 균질한 물성을 나타내는 콘크리트 구조물을 제공할 수 없다.At this time, if the particle size of the oyster shell is less than 50㎛, mixing with the Portland cement may deteriorate and aggregation may occur, and if the particle size of the oyster shell exceeds 150㎛, marine eco-friendly concrete according to the present invention It is not possible to provide a concrete structure exhibiting homogeneous physical properties because it is not evenly mixed with each component constituting the composition.
한편, 굴패각은 2016년부터 육상 폐기물의 해양배출 전면 금지법이 실시되면서, 미처리된 굴패각을 불법적으로 투기, 매립 및 야적하는 일이 빈번히 발생하고 있어 지역의 미관훼손이나 악취 발생 등을 유발하여 환경오염을 초래하고 있는데, 본 발명과 같이 굴패각을 분말화하여 해양용 콘크리트에 적용하게 되면 친환경적인 효과도 유발할 수 있다.On the other hand, since 2016, the ban on discharging land waste to the sea has been enforced, and illegal dumping, landfilling, and storage of untreated oyster shells frequently occur, causing damage to the aesthetics of the area or generation of odor, thereby causing environmental pollution. However, when oyster shells are powdered and applied to marine concrete as in the present invention, an environmentally friendly effect can also be caused.
상기 혼화재는 8 내지 12 중량부가 함유되며, 슬래그, 플라이애쉬 및 포졸란으로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는데, 상기의 성분으로 이루어지는 혼화재 중 슬래그는 염화물에 대한 내구성이 우수하여 해양용 콘크리트 구조물에 적합하며, 내구성이 우수한 고강도 콘크리트를 제공하는 역할을 한다.The admixture contains 8 to 12 parts by weight, and is made of one or more selected from the group consisting of slag, fly ash and pozzolan. Among the admixtures composed of the above components, slag has excellent durability against chloride and is suitable for marine concrete structures. It serves to provide high-strength concrete with excellent durability.
상기 잔골재는 60 내지 100 중량부가 함유되며, 콘크리트 구조물의 내충격성과 같은 기계적 물성을 향상시키는 역할을 하는데, 모래로 이루어지는 것이 바람직하다.The fine aggregate contains 60 to 100 parts by weight, serves to improve mechanical properties such as impact resistance of concrete structures, and is preferably made of sand.
또한, 본 발명에 따른 해양용 친환경 콘크리트용 조성물에는 상기 저 품위 철광석 100 중량부 대비 아르기닌(Arginine) 4 내지 6 중량부 및 부식토 4 내지 6 중량부가 더 함유될 수도 있다.In addition, the composition for marine eco-friendly concrete according to the present invention may further contain 4 to 6 parts by weight of arginine and 4 to 6 parts by weight of humus soil based on 100 parts by weight of the low-grade iron ore.
상기 아르기닌은 어류의 생육을 촉진시키는 역할을 하며, 상기 부식토는 각종 유기물을 풍부하게 포함하여 플랑크톤 등의 각종 미소조류 및 수초의 생육을 증진시키는 역할을 하기 때문에, 어류의 주요 먹이원이 되는 미소생물 및 수초의 생육의 증가로 인해서 어류의 생육을 증가시킬 수 있는 해양용 콘크리트 구조물이 제공될 수 있도록 하는 역할을 한다.The arginine serves to promote the growth of fish, and since the humus soil is rich in various organic substances and serves to promote the growth of various microalgae such as plankton and aquatic plants, microbes that are the main food source for fish And it serves to provide a marine concrete structure capable of increasing the growth of fish due to the increase in the growth of aquatic plants.
이하에서는, 본 발명에 따른 해양용 친환경 콘크리트용 조성물의 제조방법 및 그 제조방법으로 제조된 콘크리트용 조성물로 제조된 해양용 콘크리트 조성물의 물성을 실시예를 들어 설명하기로 한다.Hereinafter, the manufacturing method of the marine eco-friendly concrete composition according to the present invention and the physical properties of the marine concrete composition manufactured with the concrete composition manufactured by the manufacturing method will be described with examples.
<실시예 1><Example 1>
저 품위 철광석 100 중량부, 포틀랜드 시멘트 25 중량부, 굴패각(입자크기 50 내지 150㎛) 5 중량부, 혼화재(슬래그) 10 중량부, 잔골재(모래) 80 중량부 및 정제수 20 중량부를 혼합하여 해양용 친환경 콘크리트용 조성물을 제조하였다.100 parts by weight of low-grade iron ore, 25 parts by weight of Portland cement, 5 parts by weight of oyster shells (particle size 50 to 150㎛), 10 parts by weight of admixture (slag), 80 parts by weight of fine aggregate (sand), and 20 parts by weight of purified water for marine use A composition for eco-friendly concrete was prepared.
상기 실시예 1을 통해 제조된 해양용 친환경 콘크리트용 조성물을 이용하여 KS F 2403에 따라 공시체를 제조한 후에, 공시체의 압축강도를 측정(KS F 2405)한 결과 평균 42Mpa의 압축강도를 나타내었다.After preparing a specimen according to KS F 2403 using the composition for marine eco-friendly concrete prepared in Example 1, the compressive strength of the specimen was measured (KS F 2405), and as a result, the average compressive strength was 42 Mpa.
따라서, 본 발명에 따른 해양용 친환경 콘크리트용 조성물은 저염기성을 나타내어 해양생물에게 악영향을 미치지 않고, 염수에 대해 우수한 내구성을 나타낼 뿐만 아니라 자중을 증가시켜 외력 및 충격에 대한 저항능력 향상으로 우수한 기계적 강도를 나타내는 콘크리트를 제공하는 탁월한 효과를 나타낸다.Therefore, the composition for marine eco-friendly concrete according to the present invention exhibits low basicity, does not adversely affect marine life, exhibits excellent durability against salt water, and has excellent mechanical strength due to improved resistance to external force and impact by increasing its own weight. Shows an excellent effect of providing concrete that exhibits.
Claims (5)
A composition for marine eco-friendly concrete, characterized in that it consists of low-grade iron ore, Portland cement, oyster shell, admixture, fine aggregate and purified water.
상기 해양용 친환경 콘크리트용 조성물은 저 품위 철광석 100 중량부, 포틀랜드 시멘트 22 내지 28 중량부, 굴패각 4 내지 6 중량부, 혼화재 8 내지 12 중량부, 잔골재 60 내지 100 중량부 및 정제수 18 내지 22 중량부로 이루어지는 것을 특징으로 하는 해양용 친환경 콘크리트용 조성물.
The method of claim 1,
The composition for marine eco-friendly concrete includes 100 parts by weight of low-grade iron ore, 22 to 28 parts by weight of Portland cement, 4 to 6 parts by weight of oyster shells, 8 to 12 parts by weight of admixture, 60 to 100 parts by weight of fine aggregate, and 18 to 22 parts by weight of purified water. Composition for marine eco-friendly concrete, characterized in that consisting of.
상기 굴폐각은 50 내지 150㎛의 입자크기를 갖는 것을 특징으로 하는 해양용 친환경 콘크리트용 조성물.
According to claim 1 or 2,
The composition for marine eco-friendly concrete, characterized in that the folding angle has a particle size of 50 to 150㎛.
상기 혼화재는 슬래그, 플라이애쉬 및 포졸란으로 이루어진 그룹에서 선택된 하나 이상으로 이루어지는 것을 특징으로 하는 해양용 친환경 콘크리트용 조성물.
According to claim 1 or 2,
The admixture is a composition for marine eco-friendly concrete, characterized in that consisting of at least one selected from the group consisting of slag, fly ash and pozzolan.
상기 해양용 친환경 콘크리트용 조성물에는 상기 저 품위 철광석 100 중량부 대비 아르기닌 4 내지 6 중량부 및 부식토 4 내지 6 중량부가 더 함유되는 것을 특징으로 하는 해양용 친환경 콘크리트용 조성물.According to claim 1 or 2,
The composition for marine eco-friendly concrete, characterized in that the composition for marine eco-friendly concrete further contains 4 to 6 parts by weight of arginine and 4 to 6 parts by weight of humus soil relative to 100 parts by weight of the low grade iron ore.
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| KR102685324B1 (en) * | 2023-08-29 | 2024-07-16 | 대상이앤씨(주) | SConcrete structure repair and reinforcement construction method using high-performance dry shotcrete |
| KR102688910B1 (en) * | 2023-08-24 | 2024-07-26 | 대상이앤씨(주) | Repair and reinforcement construction method for concrete structure using high-performance dry shotcrete composition and guide rail high-pressure spray crushing |
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| KR102207089B1 (en) | 2019-01-22 | 2021-01-25 | 한국해양대학교 산학협력단 | concrete composition for ocean having salt-resistance |
| KR102267021B1 (en) | 2020-06-23 | 2021-06-17 | 허식 | high-precision marine concrete structure |
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| KR102207089B1 (en) | 2019-01-22 | 2021-01-25 | 한국해양대학교 산학협력단 | concrete composition for ocean having salt-resistance |
| KR102267021B1 (en) | 2020-06-23 | 2021-06-17 | 허식 | high-precision marine concrete structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102688910B1 (en) * | 2023-08-24 | 2024-07-26 | 대상이앤씨(주) | Repair and reinforcement construction method for concrete structure using high-performance dry shotcrete composition and guide rail high-pressure spray crushing |
| KR102685324B1 (en) * | 2023-08-29 | 2024-07-16 | 대상이앤씨(주) | SConcrete structure repair and reinforcement construction method using high-performance dry shotcrete |
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