KR102582052B1 - High density and heavy weight fine aggregate - Google Patents
High density and heavy weight fine aggregate Download PDFInfo
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- KR102582052B1 KR102582052B1 KR1020220107338A KR20220107338A KR102582052B1 KR 102582052 B1 KR102582052 B1 KR 102582052B1 KR 1020220107338 A KR1020220107338 A KR 1020220107338A KR 20220107338 A KR20220107338 A KR 20220107338A KR 102582052 B1 KR102582052 B1 KR 102582052B1
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- residual oil
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
Abstract
본 발명의 고밀도 중량 잔골재는 No 4 번체의 잔유율 3 ~ 25 중량%; No 8 번체의 잔유율 15 ~ 25 중량%; No 16 번체의 잔유율 15 ~ 25 중량%; No 30 번체의 잔유율 10 ~ 15 중량%; No 50 번체의 잔유율 5 ~ 10 중량%; No 100 번체의 잔유율 5 ~ 10 중량%; No 200 번체의 잔유율 8 ~ 15 중량%; Pan의 잔유율 2 ~ 10 중량%;를 포함한다. 아울러, 본 발명에 따른 고밀도 중량 잔골재는 절대건조밀도가 3.1ton/㎥ 이상이고, 단위용적질량이 2.17 ton/㎥ 이상인 것이 바람직하다.The high-density heavy fine aggregate of the present invention has a residual oil content of 3 to 25% by weight of traditional No 4; 15 to 25% by weight of residual oil of No 8 traditional body; 15 to 25% by weight of residual oil of No 16 traditional body; Residual oil ratio of No 30 traditional sieve 10 to 15% by weight; 5 to 10% by weight of residual oil of No 50 traditional sieve; 5 to 10% by weight of residual oil of No 100 traditional sieve; Residual oil ratio of No 200 traditional body 8 ~ 15% by weight; Contains a residual oil ratio of 2 to 10% by weight of Pan. In addition, the high-density heavy fine aggregate according to the present invention preferably has an absolute dry density of 3.1 ton/㎥ or more and a unit volume mass of 2.17 ton/㎥ or more.
Description
본 발명은 건설분야에 관한 것으로서, 상세하게는 고밀도 중량 잔골재에 대한 기술이다.The present invention relates to the construction field, and specifically to technology for high-density heavy fine aggregate.
잔골재는 콘크리트 조성물 및 모르타르 조성물에 혼합되는 재료로서, 건설공사의 주요 재료로 사용된다. 콘크리트 및 모르타르 조성물의 물리적 성질은 혼합되는 재료의 특성에 기인하는데, 종래의 잔골재로는 주로 모래가 사용되어 왔다.Fine aggregate is a material mixed into concrete compositions and mortar compositions and is used as a main material in construction work. The physical properties of concrete and mortar compositions are due to the characteristics of the materials being mixed, and sand has been mainly used as a conventional fine aggregate.
건설기술의 발전은 구조공학의 발전과 함께 재료공학의 발전이 함께 이루어지고 있다. 재료공학의 발전은 조성물을 구성하는 재료의 발전을 말하는데, 기존에 사용되지 않았던 재료가 혼합되거나 개량된 재료가 사용되어 조성물의 물리적 특징이 향상된다. 최근에는 빌딩, 아파트, 주상복합 등과 같은 공사에 벽체 콘크리트 따로 바닥판 콘크리트가 따로 구분되어 시공되는 경우가 있다. 이는 바닥판의 충격 및 소음을 최소화 시키기 위한 방법으로서, 구조물의 취약점을 보완하고, 약점을 보강하는 방향으로 세분화된 재료가 사용되고 있다.The development of construction technology is accompanied by the development of structural engineering and the development of materials engineering. Advances in materials engineering refer to the development of materials that make up compositions. Materials that have not previously been used are mixed or improved materials are used to improve the physical characteristics of the composition. Recently, in construction such as buildings, apartments, and residential-commercial complexes, there are cases where wall concrete and floor concrete are separately constructed. This is a method to minimize the impact and noise of the floor plate, and fine-grained materials are used to complement the weak points of the structure and reinforce them.
국내에도 많은 조성물 특허가 출원되고 있는데, 아래 선행기술의 기술구성, 명칭, 도면번호는 그 종래기술의 설명에 한정되어 사용된다.There are many composition patent applications filed in Korea, but the technical composition, name, and drawing number of the prior art below are used only for the description of the prior art.
대한민국등록특허 10-2310032 '고강도 중량 콘크리트 조성물 및 이를 이용한 구조체'는 고강도 중량물용 콘크리트 조성물에 대한 기술로서, 콘크리트 조성물은 제강슬래그를 아토마이징 처리하여 얻어진 제강SC 스톤, 볼 및 파우더를 굵은 골재 및 잔골재로 사용하며, PHC 파일 콘크리트, 해저케이블 보호용 콘크리트, 테트라포드 등과 같이 고강도는 물론 고중량이 요구되는 콘크리트 구조체의 제조에 적합하다.Republic of Korea Patent No. 10-2310032 'High-strength heavy concrete composition and structure using the same' is a technology for a high-strength heavy-duty concrete composition. The concrete composition is made by using steel SC stones, balls and powder obtained by atomizing steelmaking slag as coarse aggregate and fine aggregate. It is suitable for manufacturing concrete structures that require high strength and high weight, such as PHC pile concrete, submarine cable protection concrete, tetrapod, etc.
대한민국등록특허 10-2255350 '콘크리트용 잔골재 및 이를 포함하는 건축 재료용 조성물'은 페로니켈슬래그와 고로슬래그의 결함을 보완한 페로니켈슬래그와 고로슬래그가 혼합된 혼합슬래그를 포함하는 콘크리트용 잔골재에 관한 것이다. 본 발명에 의하면, 페로니켈슬래그 및 고로슬래그가 혼합된 혼합슬래그를 포함하는 콘크리트용 잔골재가 제공된다. 본 발명에 의한 혼합슬래그 잔골재는 모래 대체재로 콘크리트 및/또는 모르타르에 적용시, 향상된 유동성 및/또는 강도를 나타낸다. 뿐만 아니라, 본 발명의 혼합슬래그 잔골재는 개선된 수축률을 나타낸다. 또한, 천연골재 수급 불균형 문제를 해결할 수 있고 슬래그를 유가자원으로 재활용하는 방안으로서 그 효과를 기대할 수 있다.Republic of Korea Patent No. 10-2255350 'Fine aggregate for concrete and composition for building materials containing same' relates to fine aggregate for concrete containing mixed slag of ferronickel slag and blast furnace slag, which complements the defects of ferronickel slag and blast furnace slag. will be. According to the present invention, fine aggregate for concrete containing mixed slag of ferronickel slag and blast furnace slag is provided. The mixed slag fine aggregate according to the present invention exhibits improved fluidity and/or strength when applied to concrete and/or mortar as a sand substitute. In addition, the mixed slag fine aggregate of the present invention exhibits improved shrinkage. In addition, it can solve the problem of imbalance between supply and demand of natural aggregates and can be expected to be effective as a way to recycle slag as a valuable resource.
대한민국등록특허 10-2388141 '층간 소음 저감을 위한 강도 등급별 바닥용 배합설계 방법'은 층간 소음을 저감하기 위하여 제공되는 것으로, 압축강도의 등급별로 분류된 바닥용 모르타르의 배합설계 방법에 관한 것이다. 본 발명은 「(a) 바닥용 모르타르를 압축강도(fck)별로 분류하여 등급화하는 단계; (b) 분류된 압축강도 등급별로 단위중량(mc)을 설정하는 단계; (c) 분류된 압축강도 및 설정된 단위중량을 이용하여 탄성계수(E)를 산출하는 단계; 및 (d) 설정된 단위중량 및 산출된 탄성계수를 충족시키는 모르타르 원료 설정 및 원료별 배합량 결정 단계;를 포함하는 층간 소음 저감을 위한 강도 등급별 바닥용 모르타르 배합 설계 방법」을 제공한다.Republic of Korea Patent No. 10-2388141, 'Floor Mixture Design Method for Reducing Interfloor Noise by Strength Grade' is provided to reduce interfloor noise and relates to a mix design method for floor mortars classified by compressive strength grade. The present invention includes the steps of: (a) classifying and grading floor mortar by compressive strength (fck); (b) setting unit weight (mc) for each classified compressive strength grade; (c) calculating the elastic modulus (E) using the classified compressive strength and the set unit weight; and (d) setting mortar raw materials that meet the set unit weight and calculated elastic modulus and determining the mixing amount for each raw material; providing a floor mortar mix design method for each strength class for reducing inter-floor noise, including a step.
본 발명은 철강 부산물을 재활용한 고밀도 중량 잔골재로서, 종래의 잔골재 보다 중량이 무겁고 밀도가 높은 잔골재 기술에 관한 것이다. 본 발명에 따른 잔골재를 활용하여 콘크리트 또는 모르타르 조성물의 중량을 증가시키고, 단위용적질량을 높여 외부 충격에 대한 구조물의 충격 및 진동을 최소화 할 수 있다.The present invention is a high-density heavy fine aggregate made from recycled steel by-products, and relates to fine aggregate technology that is heavier and has a higher density than conventional fine aggregate. By using the fine aggregate according to the present invention, the weight of the concrete or mortar composition can be increased and the unit volume mass can be increased to minimize the shock and vibration of the structure due to external shocks.
상기 과제의 해결을 위하여, 본 발명의 고밀도 중량 잔골재는 No 4 번체의 잔유율 3 ~ 25 중량%; No 8 번체의 잔유율 15 ~ 25 중량%; No 16 번체의 잔유율 15 ~ 25 중량%; No 30 번체의 잔유율 10 ~ 15 중량%; No 50 번체의 잔유율 5 ~ 10 중량%; No 100 번체의 잔유율 5 ~ 10 중량%; No 200 번체의 잔유율 8 ~ 15 중량%; Pan의 잔유율 2 ~ 10 중량%;를 포함한다.In order to solve the above problem, the high-density heavy fine aggregate of the present invention has a residual oil ratio of 3 to 25% by weight of traditional No 4; 15 to 25% by weight of residual oil of No 8 traditional body; 15 to 25% by weight of residual oil of No 16 traditional body; Residual oil ratio of No 30 traditional sieve 10 to 15% by weight; 5 to 10% by weight of residual oil of No 50 traditional sieve; 5 to 10% by weight of residual oil of No 100 traditional sieve; Residual oil ratio of No 200 traditional body 8 ~ 15% by weight; Contains a residual oil ratio of 2 to 10% by weight of Pan.
본 발명에 따른 고밀도 중량 잔골재는 절대건조밀도가 3.1ton/㎥ 이상이고, 단위용적질량이 2.17 ton/㎥ 이상인 것이 바람직하다.The high-density heavy fine aggregate according to the present invention preferably has an absolute dry density of 3.1 ton/㎥ or more and a unit volume mass of 2.17 ton/㎥ or more.
본 발명에 따른 고밀도 중량 잔골재는 실적률이 70~90%인 것이 바람직하다.The high-density heavy fine aggregate according to the present invention preferably has a performance rate of 70 to 90%.
본 발명에 따른 고밀도 중량 잔골재는 전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3) 중 적어도 어느 하나가 혼합되되, 상기 전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3)는 절대건조밀도가 3.1 ton/㎥ 이상인 것이 바람직하다.The high-density heavy fine aggregate according to the present invention is a mixture of at least one of electric furnace oxidized slag aggregate (1), copper slag aggregate (2), and soft slag aggregate (3), and the electric furnace oxidized slag aggregate (1) and copper slag are mixed together. It is preferable that the aggregate (2) and soft slag aggregate (3) have an absolute dry density of 3.1 ton/㎥ or more.
상기 전기로 산화 슬래그 골재(1), 상기 동슬래그 골재(2), 상기 연슬래그 골재(3)는흡수율이 2.0 % 이하인 것이 바람직하다.The electric furnace oxidized slag aggregate (1), the copper slag aggregate (2), and the soft slag aggregate (3) preferably have a water absorption rate of 2.0% or less.
상기 전기로 산화 슬래그 골재(1)는 절대건조밀도가 3.1 g/㎤ 이상 4.5 g/㎤ 미만인 것이 바람직하다.The electric furnace oxidized slag aggregate (1) preferably has an absolute dry density of 3.1 g/cm3 or more and less than 4.5 g/cm3.
상기 동슬래그 골재(2)와 상기 연슬래그 골재(3)는 절대건조밀도가 3.2 g/㎤ 이상인 것이 바람직하다.It is preferable that the copper slag aggregate (2) and the soft slag aggregate (3) have an absolute dry density of 3.2 g/cm3 or more.
상기 동슬래그 골재(2)와 상기 연슬래그 골재(3)는 단위용적질량이 1.70 kg/L 이상인 것이 바람직하다.It is preferable that the copper slag aggregate (2) and the soft slag aggregate (3) have a unit volume mass of 1.70 kg/L or more.
본 발명은 철강 부산물을 재활용한 고밀도 중량 잔골재로서, 종래의 잔골재 보다 중량이 무겁고 밀도가 높아 본 발명에 따른 잔골재를 혼합하는 콘크리트 및 모르타르의 중량을 무겁게 할수 있고, 실적률을 향상시킬 수 있다.The present invention is a high-density heavy fine aggregate made from recycled steel by-products. It is heavier and has a higher density than conventional fine aggregates, so the weight of concrete and mortar mixed with the fine aggregate according to the present invention can be made heavier, and the performance rate can be improved.
도1은 대한민국등록특허 10-2255350 '콘크리트용 잔골재 및 이를 포함하는 건축 재료용 조성물'의 대표 도면
도2는 대한민국등록특허 10-2388141 '층간 소음 저감을 위한 강도 등급별 바닥용 배합설계 방법'의 대표 도면
도3은 종래 잔골재의 입도분포표
도4는 본 발명의 일 실시 예에 따른 잔골재 입도분포표
도5는 철강 생산공정과정을 도시한 도면Figure 1 is a representative drawing of Korea Patent No. 10-2255350 'Fine aggregate for concrete and composition for building materials containing the same'
Figure 2 is a representative drawing of Korea Patent No. 10-2388141, ‘Floor mix design method for each strength class to reduce noise between floors’
Figure 3 is a particle size distribution table of conventional fine aggregate
Figure 4 is a fine aggregate particle size distribution table according to an embodiment of the present invention.
Figure 5 is a diagram showing the steel production process
본 발명에 의한 고밀도 중량 잔골재의 실시 예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일한 도면 번호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.Embodiments of high-density heavy fine aggregate according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components are assigned the same drawing numbers and overlapping descriptions thereof are provided. Decided to omit it.
또한, 이하 사용되는 제1, 제2 등과 같은 용어는 동일 또는 상응하는 구성 요소들을 구별하기 위한 식별 기호에 불과하며, 동일 또는 상응하는 구성 요소들이 제1, 제2 등의 용어에 의하여 한정되는 것은 아니다.In addition, terms such as first, second, etc. used below are merely identifiers to distinguish identical or corresponding components, and the same or corresponding components are not limited by terms such as first, second, etc. no.
또한, 결합이라 함은, 각 구성 요소 간의 접촉 관계에 있어, 각 구성 요소 간에 물리적으로 직접 접촉되는 경우만을 뜻하는 것이 아니라, 다른 구성이 각 구성 요소 사이에 개재되어, 그 다른 구성에 구성 요소가 각각 접촉되어 있는 경우까지 포괄하는 개념으로 사용하도록 한다.In addition, coupling does not mean only the case of direct physical contact between each component in the contact relationship between each component, but also means that another component is interposed between each component, and the component is in that other component. It should be used as a concept that encompasses even the cases where each is in contact.
이하, 첨부표 및 도면을 참조하여 본 발명의 일 실시 예에 따른 고밀도 중량 잔골재에 관하여 상세히 설명한다.Hereinafter, high-density heavy fine aggregate according to an embodiment of the present invention will be described in detail with reference to the attached tables and drawings.
본 발명의 고밀도 중량 잔골재는 No 4 번체의 잔유율 3 ~ 25 중량%; No 8 번체의 잔유율 15 ~ 25 중량%; No 16 번체의 잔유율 15 ~ 25 중량%; No 30 번체의 잔유율 10 ~ 15 중량%; No 50 번체의 잔유율 5 ~ 10 중량%; No 100 번체의 잔유율 5 ~ 10 중량%; No 200 번체의 잔유율 8 ~ 15 중량%; Pan의 잔유율 2 ~ 10 중량%;를 포함한다. 아울러, 본 발명에 따른 고밀도 중량 잔골재는 절대건조밀도가 3.1ton/㎥ 이상이고, 단위용적질량이 2.17 ton/㎥ 이상인 것이 바람직하다.The high-density heavy fine aggregate of the present invention has a residual oil content of 3 to 25% by weight of traditional No 4; 15 to 25% by weight of residual oil of No 8 traditional body; 15 to 25% by weight of residual oil of No 16 traditional body; Residual oil ratio of No 30 traditional sieve 10 to 15% by weight; 5 to 10% by weight of residual oil of No 50 traditional sieve; 5 to 10% by weight of residual oil of No 100 traditional sieve; Residual oil ratio of No 200 traditional body 8 ~ 15% by weight; Contains a residual oil ratio of 2 to 10% by weight of Pan. In addition, the high-density heavy fine aggregate according to the present invention preferably has an absolute dry density of 3.1 ton/㎥ or more and a unit volume mass of 2.17 ton/㎥ or more.
이때 본 발명에 의한 고밀도 중량 잔골재는 실적률이 70~90%인 것이 바람직하다.At this time, it is preferable that the high-density heavy fine aggregate according to the present invention has a performance rate of 70 to 90%.
본 발명에 따른 고밀도 중량 잔골재는 전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3) 중 적어도 어느 하나가 혼합되되, 전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3)는 절대건조밀도가 3.1 ton/㎥ 이상인 것이 혼합된다. 전기로 산화 슬래그의 경우, 절대건조밀도가 3.1 g/㎤ 이상 4.0 g/㎤ 미만인 저품위의 전기로 산화 슬래그 골재와 절대건조밀도가 4.0 g/㎤ 이상 4.5 g/㎤ 미만의 고품위 전기로 산화 슬래그가 혼합된 것을 사용할 수 있다.The high-density heavy fine aggregate according to the present invention is a mixture of at least one of electric furnace oxidized slag aggregate (1), copper slag aggregate (2), and soft slag aggregate (3), and includes electric furnace oxidized slag aggregate (1) and copper slag aggregate. (2), soft slag aggregate (3) is mixed with an absolute dry density of 3.1 ton/㎥ or more. In the case of electric arc furnace oxidation slag, low-grade electric arc furnace oxidation slag aggregate with an absolute dry density of 3.1 g/cm3 or more but less than 4.0 g/cm3 and high-quality electric arc furnace oxidation slag with an absolute dry density of 4.0 g/cm3 or more but less than 4.5 g/cm3 are used. A mixture can be used.
전기로 산화 슬래그 골재(1)와 동슬래그 골재(2), 연슬래그 골재(3)를 사용하는 것은 밀도가 높은 잔골재를 생산하기 위한 것이다.The use of electric furnace oxidized slag aggregate (1), copper slag aggregate (2), and soft slag aggregate (3) is to produce fine aggregate with high density.
이로 인해 기존 일반 골재 대비 약 25%의 단위용적질량이 향상된다.As a result, the unit volume mass is improved by about 25% compared to existing general aggregates.
이때 사용되는 전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3)는 흡수율이 2.0 % 이하인 것이 바람직하다. The electric furnace oxidized slag aggregate (1), copper slag aggregate (2), and soft slag aggregate (3) used at this time preferably have a water absorption rate of 2.0% or less.
전기로 산화 슬래그 골재(1)는 절대건조밀도가 3.1 g/㎤ 이상 4.5 g/㎤ 미만인 것이 바람직하고, 동슬래그 골재(2)와 연슬래그 골재(3)는 절대건조밀도가 3.2 g/㎤ 이상인 것이 바람직하다.The electric furnace oxidized slag aggregate (1) preferably has an absolute dry density of 3.1 g/cm3 or more and less than 4.5 g/cm3, and the copper slag aggregate (2) and soft slag aggregate (3) have an absolute dry density of 3.2 g/cm3 or more. It is desirable.
동슬래그 골재(2)와 연슬래그 골재(3)는 단위용적질량이 1.70 kg/L 이상인 것이 바람직하다.It is preferable that the copper slag aggregate (2) and soft slag aggregate (3) have a unit volume mass of 1.70 kg/L or more.
일반골재의 경우, No 4 번체의 잔유율 1 ~ 5 중량%; No 8 번체의 잔유율 1 ~ 15 중량%; No 16 번체의 잔유율 10 ~ 30 중량%; No 30 번체의 잔유율 20 ~ 25 중량%; No 50 번체의 잔유율 15 ~ 30 중량%; No 100 번체의 잔유율 8 ~ 20 중량%; No 200 번체의 잔유율 1 ~ 5 중량%; Pan의 잔유율 2 ~ 15 중량%;으로 입도분포가 형성된다.In the case of general aggregate, the residual oil content of No 4 traditional sieve is 1 to 5% by weight; No 8 traditional sieve residual oil ratio of 1 to 15% by weight; No 16 traditional sieve residual oil ratio 10 to 30% by weight; 20 to 25% by weight of residual oil of No 30 traditional body; Residual oil ratio of No 50 traditional sieve 15 to 30% by weight; 8 to 20% by weight of residual oil of No 100 traditional sieve; Residual oil ratio of No 200 traditional sieve 1 to 5% by weight; The particle size distribution is formed with a residual oil ratio of 2 to 15% by weight of Pan.
이와같은 입도분포의 경우가 도 3과 같은 입도분포이다. 이에 반해 본원발명에 따른 고밀도 중량 잔골재는 1.2mm 이상 및 0.3mm 미만 크기의 골재 비율을 증가시키고, 0.3 ~ 0.12mm 크기의 골재 비율을 감소시켜 기존 일반골재의 실적률 범위 60~70% 보다 높은 실적률 70~90%를 유지하도록 한다.An example of such a particle size distribution is the particle size distribution shown in Figure 3. On the other hand, the high-density heavy fine aggregate according to the present invention increases the ratio of aggregates with sizes of 1.2 mm or more and less than 0.3 mm, and reduces the ratio of aggregates with sizes of 0.3 to 0.12 mm, resulting in a performance rate higher than the 60 to 70% performance rate range of existing general aggregates. The rate should be maintained at 70-90%.
실적률이 증가한다는 것은 단위용적에서 골재가 차지하는 부분을 높이는 것으로서, 공극부분을 최소화하여 단위용적질량이 10~20% 증가하게 된다.Increasing the performance rate means increasing the portion of the aggregate in the unit volume, and by minimizing the voids, the unit volume mass increases by 10 to 20%.
1 : 전기로 산화 슬래그 2 : 동슬래그 골재
3 : 연슬래그 골재1: Electric furnace oxidation slag 2: Copper slag aggregate
3: Soft slag aggregate
Claims (8)
No 8 번체의 잔유율 15 ~ 25 중량%;
No 16 번체의 잔유율 15 ~ 25 중량%;
No 30 번체의 잔유율 10 ~ 15 중량%;
No 50 번체의 잔유율 5 ~ 10 중량%;
No 100 번체의 잔유율 5 ~ 10 중량%;
No 200 번체의 잔유율 8 ~ 15 중량%;
Pan의 잔유율 2 ~ 10 중량%;를 포함하는 입도분포를 갖으며, 실적률이 70~90%인 것을 특징으로 하는 고밀도 중량 잔골재.
Residual oil ratio of No 4 traditional body 3 ~ 25% by weight;
15 to 25% by weight of residual oil of No 8 traditional body;
15 to 25% by weight of residual oil of No 16 traditional body;
Residual oil ratio of No 30 traditional sieve 10 to 15% by weight;
5 to 10% by weight of residual oil of No 50 traditional sieve;
5 to 10% by weight of residual oil of No 100 traditional sieve;
Residual oil ratio of No 200 traditional body 8 ~ 15% by weight;
A high-density heavy fine aggregate having a particle size distribution including a residual oil ratio of 2 to 10% by weight of Pan and a performance rate of 70 to 90%.
절대건조밀도가 3.1ton/㎥ 이상이고, 단위용적질량이 2.17 ton/㎥ 이상인 것을 특징으로 하는 고밀도 중량 잔골재.
According to paragraph 1,
High-density heavy fine aggregate characterized by an absolute dry density of 3.1 ton/㎥ or more and a unit volume mass of 2.17 ton/㎥ or more.
전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3) 중 적어도 어느 하나가 혼합되되, 상기 전기로 산화 슬래그 골재(1), 동슬래그 골재(2), 연슬래그 골재(3)는 절대건조밀도가 3.1 ton/㎥ 이상인 것을 특징으로 하는 고밀도 중량 잔골재.
According to paragraph 1,
At least one of the electric furnace oxidized slag aggregate (1), copper slag aggregate (2), and soft slag aggregate (3) is mixed, and the electric furnace oxidized slag aggregate (1), copper slag aggregate (2), and soft slag aggregate are mixed. (3) is a high-density heavy fine aggregate characterized by an absolute dry density of 3.1 ton/㎥ or more.
상기 전기로 산화 슬래그 골재(1), 상기 동슬래그 골재(2), 상기 연슬래그 골재(3)는 흡수율이 2.0 % 이하인 것을 특징으로 하는 고밀도 중량 잔골재.
According to paragraph 4,
The electric furnace oxidized slag aggregate (1), the copper slag aggregate (2), and the soft slag aggregate (3) are high-density heavy fine aggregates, characterized in that the water absorption rate is 2.0% or less.
상기 전기로 산화 슬래그 골재(1)는 절대건조밀도가 3.1 g/㎤ 이상 4.5 g/㎤ 미만인 것을 특징으로 하는 고밀도 중량 잔골재.
According to paragraph 4,
The electric furnace oxidized slag aggregate (1) is a high-density heavy fine aggregate characterized in that the absolute dry density is 3.1 g/cm3 or more and less than 4.5 g/cm3.
상기 동슬래그 골재(2)와 상기 연슬래그 골재(3)는 절대건조밀도가 3.2 g/㎤ 이상인 것을 특징으로 하는 고밀도 중량 잔골재.
According to paragraph 4,
The copper slag aggregate (2) and the soft slag aggregate (3) are high-density heavy fine aggregates, characterized in that the absolute dry density is 3.2 g/cm3 or more.
상기 동슬래그 골재(2)와 상기 연슬래그 골재(3)는 단위용적질량이 1.70 kg/L 이상인 것을 특징으로 하는 고밀도 중량 잔골재.According to paragraph 4,
The copper slag aggregate (2) and the soft slag aggregate (3) are high-density heavy fine aggregates, characterized in that the unit volume mass is 1.70 kg/L or more.
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