KR102496536B1 - Aggregates for concrete using composite waste resin and the method of manufacture of concrete equipped with them - Google Patents
Aggregates for concrete using composite waste resin and the method of manufacture of concrete equipped with them Download PDFInfo
- Publication number
- KR102496536B1 KR102496536B1 KR1020200160274A KR20200160274A KR102496536B1 KR 102496536 B1 KR102496536 B1 KR 102496536B1 KR 1020200160274 A KR1020200160274 A KR 1020200160274A KR 20200160274 A KR20200160274 A KR 20200160274A KR 102496536 B1 KR102496536 B1 KR 102496536B1
- Authority
- KR
- South Korea
- Prior art keywords
- synthetic resin
- waste synthetic
- aggregate
- composite waste
- concrete
- Prior art date
Links
Images
Classifications
-
- 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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
-
- 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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/022—Agglomerated materials, e.g. artificial aggregates agglomerated by an organic 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
- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
-
- 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
- C04B18/146—Silica fume
-
- 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
- C04B18/18—Waste materials; Refuse organic
- C04B18/20—Waste materials; Refuse organic from macromolecular compounds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0468—Crushing, i.e. disintegrating into small particles
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
본 발명은, PET, PE, PP, PS, PVC, 복합재질의 필름류 중 어느 두 가지 이상의 복합 폐합성수지를 50mm이하로 파쇄하고, 파쇄된 복합 폐합성수지를 용융 압출장치에 투입하여 180~310℃의 온도조건에서 용융하여 17.5~175RPM의 조건으로 압출하고, 직경 10~50mm 형태로 제조되는 복합 폐합성수지; 및 상기 복합 폐합성수지 100중량부에 대하여 220 내지 350중량부로 혼합되고, 슬래그 미분말, 석탄회 미분말, 실리카 퓸 미분말 및 석회석 미분말 중 어느 한 가지 이상으로 구성되는 성능향상용 미분말을 포함하는 것을 특징으로 한다.In the present invention, any two or more composite waste synthetic resins among PET, PE, PP, PS, PVC, and composite material films are crushed to a size of 50 mm or less, and the crushed composite waste synthetic resin is put into a melt extrusion device to produce a temperature of 180 to 310 ° C. A composite waste synthetic resin produced by melting at a temperature and extruding at 17.5 to 175 RPM and having a diameter of 10 to 50 mm; and 220 to 350 parts by weight based on 100 parts by weight of the composite waste synthetic resin, and a fine powder for performance improvement composed of at least one of slag fine powder, coal ash fine powder, silica fume fine powder, and limestone fine powder.
Description
본 발명은 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법에 관한 것으로서, 보다 상세하게는, 발생량이 증가하고 있는 PET, PE, PP, PS, PVC 및 복합재질의 필름류 포장재를 재활용하여 콘크리트에 포함되는 골재를 생산하므로 환경오염에 원인이 되는 폐합성수지를 대량으로 재활용할 수 있고, 복합 폐합성수지를 이용하여 제조되는 골재의 표면형상을 개선하여 시멘트와 골재가 분리되는 것을 방지할 수 있는 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법에 관한 것이다.The present invention relates to an aggregate for concrete using composite waste synthetic resin and a concrete manufacturing method comprising the same, and more particularly, to a method for recycling PET, PE, PP, PS, PVC, and composite film packaging materials, which are increasing in generation. By producing aggregate included in concrete, it is possible to recycle a large amount of waste synthetic resin, which causes environmental pollution, and to prevent separation of cement and aggregate by improving the surface shape of aggregate manufactured using composite waste synthetic resin. It relates to an aggregate for concrete using composite waste synthetic resin and a concrete manufacturing method having the same.
일반적으로 인조 건축 자재를 이용하는 방법 중에서 팽창점토나 기타 원료를 사용하는 기술은 환경법 등에 저촉되어 사용하지 못하거나, 이들 재료의 채취를 위해 특별한 장소를 탐사하여 상기한 재료를 채취함에 따라, 채취가 용이하지 않은 단점이 있었다.In general, among the methods of using artificial building materials, technologies using expanded clay or other raw materials cannot be used due to violations of environmental laws, etc. There was a downside to not doing it.
또한, 2018년 중국 정부의 폐기물 수입 중단 등으로 인하여 폐합성수지를 포함한 국내 생활계 폐기물의 유효활용 처리가 사회적 이슈로 부각되었다.In addition, due to the Chinese government's suspension of waste imports in 2018, the effective utilization and treatment of domestic wastes, including waste synthetic resins, has emerged as a social issue.
이와 같은 폐합성수지는 생활폐기물 및 사업장 일반폐기물에서 발생하는 재활용이 가능한 자원 중 종이 다음으로 많이 발생하고 있으며 이중 90% 정도가 PET, PE, PP, PS, PVC 및 복합재질의 필름류 포장재 이다.Such waste synthetic resins are the second most recyclable resource after paper among household waste and general waste from business sites, and about 90% of them are PET, PE, PP, PS, PVC, and composite film packaging materials.
이와 같은 폐합성수지는 2017년 기준을 국내 연간발생량은 41만 8655톤이 발생하였으나 2018년 중국 정부의 폐기물 수입중단과 유효 재활용 기술의 미비 등으로 인하여 60% 미만의 재활용 수준을 유지하고 있어 선진국 대비 매우 저조한 실정이다.As of 2017, 418,655 tons of waste synthetic resin were generated annually in Korea, but due to the Chinese government’s suspension of waste imports in 2018 and the lack of effective recycling technology, the recycling level is maintained at less than 60%, which is very high compared to developed countries. condition is low.
현재 다양한 재질로 구성되어 있는 폐합성수지의 재활용 방법은 물질 재활용, 에너지 재활용 등이 있으며, 이중 에너지 재활용의 대표적인 방법은 고형연료제품(SRF, Solid Refuse Fuel)으로 활용이 있으나 최근 국내 신재생에너지 정책이 폐기물에너지(SRF 이용해 전기 생산)를 지양하는 방향으로 전개되어 재활용 수요처의 불확실성이 증가하고 있고, 미세먼지, 유해가스 방출 등의 환경문제로 수도권 및 대도시권에서의 사용이 제한되는 등 환경관리 기준의 대폭적인 강화로 관련 시설의 건설과 운영이 중단된 상태이다.Currently, there are recycling methods for waste synthetic resin composed of various materials, such as material recycling and energy recycling. Uncertainties in recycling demand sources are increasing due to the direction of avoiding waste energy (electricity production using SRF), and environmental problems such as fine dust and harmful gas emissions are restricting use in the metropolitan area and large metropolitan areas, and environmental management standards are drastically increasing. Construction and operation of related facilities have been suspended due to the strengthening.
한편 폐합성수지의 물질재활용 방법은 재질선별, 이물질 제거 등의 공정을 통하여 기와 수로관 등의 재생플라스틱 제품 제조를 위한 원료로 활용되고 있으나 이물질이 많고 다양한 종류의 폐합성수지가 혼합 배출되는 생활폐기물의 발생 특성 분리, 선별 공정의 비용이 증가되어 재활용률이 상대적으로 저조한 실정이다.On the other hand, the material recycling method of waste synthetic resin is used as a raw material for manufacturing recycled plastic products such as roof tiles and water pipes through processes such as material selection and foreign matter removal. The recycling rate is relatively low due to the increase in the cost of the separation and sorting process.
그리고 폐합성수지로부터 모노모화 또는 코크스로의 화학연료화, 가스화, 유하 등의 화학적 재활용 방법이 있으나 이는 복합 물질이 아닌 단독 물질에 대한 재활용 기술이 대부분이어서 이 또한 재활용량이 많지 않은 실정이다.In addition, there are chemical recycling methods such as monomorphization or coke furnace chemical fueling, gasification, and flow from waste synthetic resin, but most of them are recycling technologies for single materials rather than composite materials, so the amount of recycling is also not large.
이와 같은 폐합성수지에 대한 재활용 방법에 대한 재활용 효율과 경제성 분석 결과 국가환경정보센터에서는 물질 재활용, 화학적 재활용, 고형연료화 와 같은 열적 재활용 순으로 경제성이 우수한 것으로 보고되고 있다.As a result of analyzing the recycling efficiency and economic feasibility of the recycling method for waste synthetic resin, the National Environmental Information Center reports that material recycling, chemical recycling, and thermal recycling such as solid fuel are excellent in economic efficiency in the order.
따라서 발생량이 매년 증가추세에 있는 다양한 소재 형태로 발생되고 있는 폐합성수지의 재활용률 제고를 위해서는 실질적으로 대량 활용이 가능하고 경제성이 우수한 물질 재활용 기술개발이 절실한 실정이다.Therefore, in order to increase the recycling rate of waste synthetic resins, which are generated in various material forms whose amount is increasing every year, there is an urgent need to develop material recycling technology that can be used in large quantities and has excellent economic feasibility.
또한 기존의 폐합성수지를 콘크리트용 골재로 활용하기 위한 연구는 비교적 품질이 양호한 PET 중심으로 연구가 수행되었으며, 일부 연구에서는 PP, PE, PVC 등 단일재질을 활용한 연구가 주를 이루고 있는 실정이어서 분리 선별이 용이하지 않는 다양한 재질의 복합 폐합성수지를 콘크리트용 골재로 활용한 연구는 매우 부족한 실정이다.In addition, studies to utilize existing waste synthetic resins as aggregates for concrete have been conducted with a focus on relatively high-quality PET, and some studies have focused on using single materials such as PP, PE, and PVC. There is a lack of research on the use of composite waste synthetic resins of various materials, which are not easy to sort, as aggregates for concrete.
그리고 복합 폐합성수지를 용융하여 콘크리트용 골재로 제조할 경우 원 소재의 매우 낮은 밀도로 인하여 제조된 골재도 밀도가 0.9~1.0g/cm3 정도를 나타나 콘크리트 혼합 시 재료 분리 현상이 발생하고, 콘크리트의 워커빌리티, 강도 및 내구성을 크게 저하시켜 대량 활용이 불가능한 실정이다.In addition, when composite waste synthetic resin is melted and manufactured as aggregate for concrete, the density of the aggregate produced is about 0.9 to 1.0 g/cm 3 due to the very low density of the raw material, resulting in material separation during concrete mixing, and Workability, strength and durability are greatly reduced, making it impossible to use in large quantities.
그리고 복합 폐합성수지를 이용하여 제조된 골재는 기존의 암석을 이용한 골재에 비하여 표면이 매우 매끄럽기 때문에 시멘트 페이스트와의 계면 부착력이 저하되어 전체 콘크리트의 성능을 저하시키는 문제점을 내포하고 있어 이에 대한 성능개선 제조기술 개발이 필요한 실정이다.In addition, aggregates manufactured using composite waste synthetic resin have a very smooth surface compared to aggregates using existing rocks, so the interfacial adhesion with cement paste is lowered, which reduces the performance of the entire concrete. Manufacturing technology needs to be developed.
상기한 문제점을 해결하기 위해 폐합성수지로부터 제조한 재생유와 일반 흙을 이용한 인공골재 제조방법이 개발되었으며, 종래기술에 따른 인공골재 제조방법은, 일반 흙을 공급하는 원토공급기를 거친 일반 흙이 선별기를 거치면서 돌 및 불순물이 제거되고, 원료투입구를 거치면서 1차롤밀 및 2차롤밀을 거친 후, 혼합기에서 일반 흙과 재생유의 혼합비율을 99.5중량%: 0.5중량% 또는 99.8중량%: 0.2중량% 의 비율로 혼합된 후, 진공 성형기에서 2mm ~ 30mm의 크기로 성형되고, 일정한 크기로 성형된 중간재는 로터리키른(Rotary kiln)내로 투입시켜 1000 ~ 1200℃의 온도로 17분 ~ 25분 가열하여 소성되면서 100 ~ 300% 팽창되고, 이어 냉각기를 통과시켜 고열로 연화되는 것을 방지한 상태에서 냉각되면서 성형된다.In order to solve the above problems, a method for manufacturing artificial aggregate using recycled oil and general soil from waste synthetic resin has been developed. Stones and impurities are removed through the raw material inlet, and after passing through the first roll mill and the second roll mill through the raw material inlet, the mixing ratio of general soil and recycled oil in the mixer is 99.5% by weight: 0.5% by weight or 99.8% by weight: 0.2% by weight After mixing at a % ratio, it is molded into a size of 2mm ~ 30mm in a vacuum forming machine, and the intermediate material molded to a certain size is put into a rotary kiln and heated for 17 minutes to 25 minutes at a temperature of 1000 ~ 1200 ℃ It expands by 100 ~ 300% while being fired, and then passes through a cooler to prevent it from being softened by high heat and is molded while being cooled.
본 발명의 배경기술은 대한민국 등록특허공보 제10-0632708호(2006년 10월 12일 공고, 발명의 명칭 : 폐합성수지로부터 제조한 재생유와 일반 흙을 이용한 인공골재 및 제조방법)에 개시되어 있다.The background art of the present invention is disclosed in Republic of Korea Patent Registration No. 10-0632708 (published on October 12, 2006, title of invention: artificial aggregate and manufacturing method using recycled oil and general soil produced from waste synthetic resin) .
종래기술에 따른 인공골재는, 폐합성수지로부터 재생유를 생산한 후에 일반 흙과 혼합하여 인공골재를 제조하기 때문에 인공골재 제조가 복잡하여 인공골재 제조에 소요되는 시간 및 비용을 절감하기 어렵고, 폐합성수지로부터 제조되는 재생유와 일반 흙을 혼합하여 인공골재를 생산하기 때문에 인공골재의 표면이 필요 이상으로 매끄럽게 제조되므로 인공골재와 시멘트를 혼합하여 콘크리트 모르타르를 생산할 때에 인공골재와 다른 재료들 특히 시멘트와 쉽게 혼합되지 않고 분리되면서 콘크리트 모르타르의 품질이 저하되는 문제점이 있다.In the artificial aggregate according to the prior art, since recycled oil is produced from waste synthetic resin and then mixed with general soil to produce artificial aggregate, manufacturing of artificial aggregate is complicated and it is difficult to reduce the time and cost required for manufacturing artificial aggregate, and waste synthetic resin Because artificial aggregate is produced by mixing recycled oil and general soil, the surface of artificial aggregate is produced more smoothly than necessary, so when producing concrete mortar by mixing artificial aggregate and cement, it is easy to mix with artificial aggregate and other materials, especially cement. There is a problem that the quality of the concrete mortar is degraded as it is not mixed and separated.
따라서 이를 개선할 필요성이 요청된다.Therefore, there is a need to improve this.
본 발명은 발생량이 증가하고 있는 PET, PE, PP, PS, PVC 및 복합재질의 필름류 포장재를 재활용하여 콘크리트에 포함되는 골재를 생산하므로 환경오염에 원인이 되는 폐합성수지를 대량으로 재활용할 수 있고, 복합 폐합성수지를 이용하여 제조되는 골재의 표면형상을 개선하여 시멘트와 골재가 분리되는 것을 방지할 수 있는 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법을 제공하는데 그 목적이 있다.The present invention produces aggregates included in concrete by recycling PET, PE, PP, PS, PVC, and composite film packaging materials, which are increasing in amount, so that waste synthetic resins that cause environmental pollution can be recycled in large quantities, It is an object of the present invention to provide aggregate for concrete using composite waste synthetic resin, which can prevent separation of cement and aggregate by improving the surface shape of aggregate produced using composite waste synthetic resin, and a concrete manufacturing method comprising the same.
본 발명은, PET, PE, PP, PS, PVC, 복합재질의 필름류 중 어느 두 가지 이상의 복합 폐합성수지를 50mm이하로 파쇄하고, 파쇄된 복합 폐합성수지를 용융 압출장치에 투입하여 180~310℃의 온도조건에서 용융하여 17.5~175RPM의 조건으로 압출하고, 직경 10~50mm 형태로 제조되는 복합 폐합성수지; 및 상기 복합 폐합성수지 100중량부에 대하여 220 내지 350중량부로 혼합되고, 슬래그 미분말, 석탄회 미분말, 실리카 퓸 미분말 및 석회석 미분말 중 어느 한 가지 이상으로 구성되는 성능향상용 미분말을 포함하는 것을 특징으로 한다.In the present invention, any two or more composite waste synthetic resins among PET, PE, PP, PS, PVC, and composite material films are crushed to a size of 50 mm or less, and the crushed composite waste synthetic resin is put into a melt extrusion device to produce a temperature of 180 to 310 ° C. A composite waste synthetic resin produced by melting at a temperature and extruding at 17.5 to 175 RPM and having a diameter of 10 to 50 mm; and 220 to 350 parts by weight based on 100 parts by weight of the composite waste synthetic resin, and a fine powder for performance improvement composed of at least one of slag fine powder, coal ash fine powder, silica fume fine powder, and limestone fine powder.
또한, 본 발명의 상기 복합 폐합성수지와 상기 성능향상용 미분말의 혼합물은, 팬 타입 믹서, 강제식 믹서, 트윈샤프트식 믹서 중 어느 한 가지의 믹서를 이용하여 15~65RPM의 속도로 60~120초 동안 혼합하여 균질하게 제조하고, 혼합된 상기 복합 폐합성수지와 상기 성능향상용 미분말의 혼합물을 용융 압출장치에서 180~310℃의 온도로 용융하고, 스크루식 교송이송장치에서 1~3분간 혼합하고, 원 모양, 십자 모양 또는 별 모양으로 토출구가 형성되는 노즐부를 통해 상기 복합 폐합성수지와 상기 성능향상용 미분말의 혼합물을 압출 성형한 후에 압출된 폐합성수지를 골재의 크기별로 절단하여 골재를 제조하는 것을 특징으로 한다.In addition, the mixture of the composite waste synthetic resin and the fine powder for performance improvement of the present invention is mixed at a speed of 15 to 65 RPM for 60 to 120 seconds using any one of a fan-type mixer, a forced mixer, and a twin-shaft mixer. homogeneously prepared by mixing during mixing, melting the mixed mixture of the mixed waste synthetic resin and the fine powder for performance improvement at a temperature of 180 to 310 ° C. in a melt extrusion device, mixing for 1 to 3 minutes in a screw-type conveying device, After extruding a mixture of the composite waste synthetic resin and the fine powder for performance improvement through a nozzle having a discharge port formed in a circular, cross, or star shape, the extruded waste synthetic resin is cut by size to produce aggregate. to be characterized
또한, 본 발명의 상기 골재는, 밀도 1.5~1.8g/cm3로 제조되는 것을 특징으로 한다.In addition, the aggregate of the present invention is characterized in that it is produced with a density of 1.5 ~ 1.8g / cm 3 .
또한, 본 발명의 상기 골재는, 콘크리트 1m3 당 최대 400kg까지 적용 가능한 것을 특징으로 한다.In addition, the aggregate of the present invention is characterized in that it can be applied up to 400 kg per 1 m 3 of concrete.
또한, 본 발명은, 시멘트 100중량부에 대하여 혼합수 30 내지 40 중량부, 일반 잔골재 30내지 85중량부, 일반 굵은 골재 70내지 125중량부, 복합 폐합성수지 잔골재 20내지 50중량부, 고밀도형 복합 폐합성수지 굵은 골재 20내지 50중량부, 혼화제 0.5내지 1.5중량부를 혼합하여 이루어지는 것을 특징으로 한다.In addition, the present invention, based on 100 parts by weight of cement, 30 to 40 parts by weight of mixing water, 30 to 85 parts by weight of general fine aggregate, 70 to 125 parts by weight of general coarse aggregate, 20 to 50 parts by weight of composite waste synthetic resin fine aggregate, high-density composite It is characterized in that it is formed by mixing 20 to 50 parts by weight of waste synthetic resin coarse aggregate and 0.5 to 1.5 parts by weight of an admixture.
본 발명에 따른 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법은, 복합 폐합성수지에 성능 향상용 미분말을 혼합하여 골재를 제조하므로 골재의 밀도를 증가시키고, 재료분리 현상을 감소시킬 수 있으며, 콘크리트 1m3에 400kg까지 적용 가능하므로 대량의 복합 폐합성수지를 재활용할 수 있어 대량으로 배출되는 복합 폐합성수지를 효과적으로 처리할 수 있고, 환경오염을 방지할 수 있는 이점이 있다.The aggregate for concrete using the composite waste synthetic resin according to the present invention and the concrete manufacturing method including the same can increase the density of the aggregate and reduce material separation because the aggregate is manufactured by mixing the composite waste synthetic resin with fine powder for performance improvement. And, since up to 400kg can be applied to 1m 3 of concrete, a large amount of composite waste synthetic resin can be recycled, so the composite waste synthetic resin discharged in large quantities can be effectively treated and environmental pollution can be prevented.
도 1은 본 발명의 일 실시예에 따른 복합 폐합성수지 골재용 제조장치가 도시된 사진이다.
도 2는 본 발명의 일 실시예에 따른 복합 폐합성수지 골재용 제조장치의 압출노즐이 도시된 사진이다.
도 3은 본 발명의 일 실시예에 따른 복합 폐합성수지 골재용 제조장치에 의해 제조되는 골재가 도시된 사진이다.
도 4는 본 발명의 일 실시예에 따른 복합 폐합성수지 골재를 포함하는 콘크리트의 재료분리 실험이 도시된 사진이다.
도 5는 본 발명의 일 실시예에 따른 복합 폐합성수지 골재를 포함하는 콘크리트의 물성평가 시험이 도시된 사진이다.1 is a photograph showing a manufacturing apparatus for a composite waste synthetic resin aggregate according to an embodiment of the present invention.
2 is a photograph showing an extrusion nozzle of a manufacturing apparatus for composite waste synthetic resin aggregate according to an embodiment of the present invention.
3 is a photograph showing an aggregate produced by the manufacturing apparatus for composite waste synthetic resin aggregate according to an embodiment of the present invention.
4 is a photograph showing a material separation experiment of concrete containing a composite waste synthetic resin aggregate according to an embodiment of the present invention.
5 is a photograph showing a physical property evaluation test of concrete containing a composite waste synthetic resin aggregate according to an embodiment of the present invention.
이하, 첨부된 도면들을 참조하여 본 발명에 따른 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법의 일 실시예를 설명한다.Hereinafter, an embodiment of an aggregate for concrete using a composite waste synthetic resin according to the present invention and a concrete manufacturing method including the same will be described with reference to the accompanying drawings.
이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description.
또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로써, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다.In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator.
그러므로 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Therefore, definitions of these terms will have to be made based on the content throughout this specification.
도 1은 본 발명의 일 실시예에 따른 복합 폐합성수지 골재용 제조장치가 도시된 사진이고, 도 2는 본 발명의 일 실시예에 따른 복합 폐합성수지 골재용 제조장치의 압출노즐이 도시된 사진이고, 도 3은 본 발명의 일 실시예에 따른 복합 폐합성수지 골재용 제조장치에 의해 제조되는 골재가 도시된 사진이다.1 is a photograph showing a manufacturing apparatus for composite waste synthetic resin aggregate according to an embodiment of the present invention, and FIG. 2 is a photograph showing an extrusion nozzle of the manufacturing apparatus for composite waste synthetic resin aggregate according to an embodiment of the present invention. 3 is a photograph showing an aggregate produced by a manufacturing apparatus for composite waste synthetic resin aggregate according to an embodiment of the present invention.
또한, 도 4는 본 발명의 일 실시예에 따른 복합 폐합성수지 골재를 포함하는 콘크리트의 재료분리 실험이 도시된 사진이고, 도 5는 본 발명의 일 실시예에 따른 복합 폐합성수지 골재를 포함하는 콘크리트의 물성평가 시험이 도시된 사진이다.4 is a photograph showing a material separation experiment of concrete containing composite waste synthetic resin aggregate according to an embodiment of the present invention, and FIG. 5 is concrete containing composite waste synthetic resin aggregate according to an embodiment of the present invention. It is a photograph showing the physical property evaluation test of.
도 1 내지 도 5를 참조하면, 본 발명의 일 실시예에 따른 복합 폐합성수지를 이용하는 콘크리트용 골재는, PET, PE, PP, PS, PVC, 복합재질의 필름류 중 어느 두 가지 이상의 복합 폐합성수지를 50mm이하로 파쇄하고, 파쇄된 복합 폐합성수지를 용융 압출장치에 투입하여 180~310℃의 온도조건에서 용융하여 17.5~175RPM의 조건으로 압출하고, 직경 10~50mm 형태로 제조되는 복합 폐합성수지와, 복합 폐합성수지 100중량부에 대하여 220 내지 350중량부로 혼합되고, 슬래그 미분말, 석탄회 미분말, 실리카 퓸 미분말 및 석회석 미분말 중 어느 한 가지 이상으로 구성되는 성능향상용 미분말을 포함한다.1 to 5, the aggregate for concrete using the composite waste synthetic resin according to an embodiment of the present invention is composed of two or more composite waste synthetic resins selected from among PET, PE, PP, PS, PVC, and composite films. Composite waste synthetic resin produced in the form of a diameter of 10 to 50 mm by crushing to 50 mm or less, injecting the crushed waste composite synthetic resin into a melting extrusion device, melting at a temperature of 180 to 310 ° C and extruding at a condition of 17.5 to 175 RPM, and It is mixed in 220 to 350 parts by weight with respect to 100 parts by weight of the composite waste synthetic resin, and includes a fine powder for performance improvement composed of at least one of slag fine powder, coal ash fine powder, silica fume fine powder, and limestone fine powder.
본 실시예의 복합 폐합성수지와 성능향상용 미분말의 혼합물은, 팬 타입 믹서, 강제식 믹서, 트윈샤프트식 믹서 중 어느 한 가지의 믹서를 이용하여 15~65RPM의 속도로 60~120초 동안 혼합하여 균질하게 제조한다.The mixture of the composite waste synthetic resin and the fine powder for performance improvement of this embodiment is homogenized by mixing for 60 to 120 seconds at a speed of 15 to 65 RPM using any one of a fan type mixer, a forced mixer, and a twin shaft mixer. to manufacture
이후에, 혼합된 복합 폐합성수지와 성능향상용 미분말의 혼합물을 용융 압출장치에서 180~310℃의 온도로 용융하고, 스크루식 교송이송장치에서 1~3분간 혼합한다.Thereafter, the mixture of the mixed waste synthetic resin and the fine powder for performance improvement is melted at a temperature of 180 to 310 ° C in a melt extrusion device and mixed for 1 to 3 minutes in a screw type transfer device.
상기한 바와 같이 혼합된 혼합물은, 원 모양, 십자 모양 또는 별 모양으로 토출구가 형성되는 노즐부를 통해 복합 폐합성수지와 성능향상용 미분말의 혼합물을 압출 성형한 후에 압출된 폐합성수지를 골재의 크기별로 절단하여 골재를 제조한다.The mixed mixture as described above is extruded by extruding a mixture of composite waste synthetic resin and fine powder for performance improvement through a nozzle having a discharge port formed in a circle, cross, or star shape, and then cutting the extruded waste synthetic resin according to the size of the aggregate. to produce aggregate.
골재를 원형 이외에 십자형상 또는 별형상으로 제조하는 경우에는 골재와 시멘트 페이스트 사이의 마찰저항력이 커지므로 콘크리트 제작 시에 골재 계면과 시멘트 페이스트의 부착성이 향상되어 재료분리 저항성이 개선될 뿐 아니라 시멘트 페이스트와 접착할 수 있는 비표면적으로 증가로 콘크리트의 강도가 향상되는 효과가 나타나게 된다.When the aggregate is manufactured in a cross shape or a star shape, the frictional resistance between the aggregate and the cement paste increases, so the adhesion between the aggregate interface and the cement paste is improved during concrete production, which improves the resistance to material separation, as well as the cement paste. As the specific surface area that can be bonded with increases, the effect of improving the strength of concrete appears.
상기한 바와 같이 제조되는 본 실시예의 골재는, 밀도 1.5~1.8g/cm3로 제조되므로 콘크리트 적용 시에 재료분리 현상을 방지하고, 콘크리트의 강도를 높일 수 있게 된다.The aggregate of this embodiment prepared as described above has a density of 1.5 to 1.8 g/cm 3 , thus preventing material separation when applying concrete and increasing the strength of concrete.
또한, 본 실시예의 골재는, 콘크리트 1m3 당 최대 400kg까지 적용 가능하게 되므로 복합 폐합성수지를 사용하여 제조되는 골재를 대량으로 사용할 수 있어 복합 폐합성수지의 재활용을 효과적으로 이룰 수 있게 되고, 복합 폐합성수지를 대량으로 사용하게 되므로 환경오염을 효과적으로 방지할 수 있게 된다.In addition, since the aggregate of this embodiment can be applied up to 400 kg per 1 m 3 of concrete, a large amount of aggregate manufactured using the composite waste synthetic resin can be used, so that the recycling of the composite waste synthetic resin can be effectively achieved, and the composite waste synthetic resin can be Since it is used in large quantities, it is possible to effectively prevent environmental pollution.
상기와 같이 구성된 본 발명의 일 실시예에 따른 복합 폐합성수지를 이용하는 콘크리트용 골재를 구비하는 콘크리트 제조방법을 살펴보면 다음과 같다.Looking at the concrete manufacturing method having the aggregate for concrete using the composite waste synthetic resin according to an embodiment of the present invention configured as described above is as follows.
본 발명의 일 실시예에 따른 복합 폐합성수지를 이용하는 콘크리트용 골재를 구비하는 콘크리트 제조방법은, 시멘트 100중량부에 대하여 혼합수 30 내지 40 중량부, 일반 잔골재 30내지 85중량부, 일반 굵은 골재 70내지 125중량부, 복합 폐합성수지 잔골재 20내지 50중량부, 고밀도형 복합 폐합성수지 굵은 골재 20내지 50중량부, 혼화제 0.5내지 1.5중량부를 혼합하여 이루어지게 된다.According to an embodiment of the present invention, a concrete manufacturing method comprising aggregate for concrete using composite waste synthetic resin includes 30 to 40 parts by weight of mixing water, 30 to 85 parts by weight of general fine aggregate, and 70 parts by weight of general coarse aggregate based on 100 parts by weight of cement. to 125 parts by weight, 20 to 50 parts by weight of composite waste synthetic resin fine aggregate, 20 to 50 parts by weight of high-density composite waste synthetic resin coarse aggregate, and 0.5 to 1.5 parts by weight of an admixture.
성능향상용 미분말은 복합 폐합성수지 100중량부에 대한 첨가비율이며, 골재 제조를 위한 혼합, 용융, 압출 조건은 상기한 조제방법에 기재되어 있는 방법으로 비교예와 실시예에 동일하게 적용하여 제조되었으며, 골재 물성평가 항목인 밀도와 흡수율은 KS F 2527 "콘크리트용 골재"에서 규정하고 있는 시험방법에 준하여 평가를 실시하였고, 형상 평가를 본 발명의 복합 폐합성수지 골재 제조 장치에서 최종 생산되는 골재의 형상을 육안관찰로 평가를 실시하였다.The fine powder for performance improvement is an addition ratio to 100 parts by weight of the composite waste synthetic resin, and the mixing, melting, and extrusion conditions for manufacturing aggregate were prepared by applying the same method as in Comparative Examples and Examples by the method described in the preparation method described above. , Density and water absorption, which are property evaluation items of aggregate, were evaluated in accordance with the test methods specified in KS F 2527 "aggregate for concrete", and the shape evaluation was performed on the shape of the aggregate finally produced by the composite waste synthetic resin aggregate manufacturing apparatus of the present invention. was evaluated by visual observation.
비교예와 실시예에 의해 제조된 복합 폐합성수지 골재의 물성평가를 고찰하여 보면 비교예1 및 비교예2의 경우는 복합 폐합성수지 골재의 성능개선을 위해 투입되는 슬래그 미분말이 본 발명의 조성비 이하로 투입된 경우로서 밀도가 0.96~1.14g/cm3을 나타내 매우 낮은 것으로 나타났다.Examining the evaluation of the physical properties of the composite waste synthetic resin aggregates prepared in Comparative Examples and Examples, in Comparative Examples 1 and 2, the slag fine powder introduced to improve the performance of the composite waste synthetic resin aggregate was less than the composition ratio of the present invention. In the case of input, the density was 0.96 to 1.14 g/cm 3 and was found to be very low.
이러한 골재는 콘크리트 제조에 적용하는 경우에 재료분리의 문제를 야기될 수 있고, 비교예1 및 비교예2의 경우는 슬래그 미분말의 투입량 부족으로 인하여 매우 높은 흡수율 특성을 나타냈고 현재 KS에서 규정하고 있는 흡수율 기준치인 3.0% 이하를 충족시키지 못하는 것으로 나타났다.These aggregates can cause material separation problems when applied to concrete manufacturing, and in the case of Comparative Example 1 and Comparative Example 2, they exhibited very high water absorption characteristics due to the insufficient input amount of slag fine powder, and currently regulated by KS It was found that the absorption rate standard of 3.0% or less was not met.
이와 같이 매우 높은 흡수율은 콘크리트의 강도, 동결융해저항성과 같은 성능 저하를 야기될 수 있는 요인이다.Such a very high water absorption is a factor that can cause deterioration in performance such as strength and freeze-thaw resistance of concrete.
그리고 성능개선을 위한 슬래그 미분말이 과도하게 투입된 비교예 3의 경우는 밀도와 흡수율은 양호한 성능을 발현하였으나, 과도한 미분말의 혼입으로 인하여 골재 제조를 위한 성능향상용 미분말이 포함되는 복합 폐합성수지의 융용이 원활하게 이루어지지 않아 골재로서의 형상 구현 즉 성형성이 매우 저하되는 결과를 나타냈다.And in the case of Comparative Example 3 in which the slag fine powder for performance improvement was excessively added, the density and water absorption showed good performance, but the melting of the composite waste synthetic resin containing the performance improvement fine powder for aggregate production was difficult due to the excessive mixing of the fine powder. It was not made smoothly, resulting in a very low formability, that is, shape implementation as an aggregate.
하지만 본 발명의 실시예1 및 실시예2의 경우는 적정한 조성비 구현을 통해 1.5g/cm3 이상의 밀도 특성을 확보하고 흡수율 또한 매우 저감되는 특성을 확보할 수 있으며, 골재로서의 성형성 또한 양호한 것으로 나타났다.However, in the case of Examples 1 and 2 of the present invention, it was found that the density characteristics of 1.5 g/cm 3 or more were secured through the implementation of an appropriate composition ratio, and the water absorption rate was also significantly reduced, and the moldability as an aggregate was also good. .
본 발명에 의해 제조된 고밀도 복합 폐합성수지 골재 실시예1 및 실시예2를 사용한 콘크리트의 물성평가 결과 압축강도는 30MPa를 확보할 수 있는 것으로 나타났으며, 공기량 측정치도 설계 목표치 4.5±1.5%를 충족시키는 것으로 나타났다.As a result of physical property evaluation of the concrete using the high-density composite waste synthetic resin aggregate Example 1 and Example 2 manufactured according to the present invention, it was found that the compressive strength was able to secure 30 MPa, and the measured air volume also met the design target of 4.5 ± 1.5%. It has been shown to do
또한 콘크리트의 작업성 척도인 슬럼프 플로도 충분히 확보할 수 있는 것으로 나타났으며, 슬럼프 플로 시에 재료분리 현상도 관찰되지 않았다.In addition, it was found that the slump flow, which is a measure of the workability of concrete, could be sufficiently secured, and material separation was not observed during the slump flow.
하지만 비교예1 및 비교예2의 경우는 복합 폐합성수지 골재의 낮은 밀도로 인하여 콘크리트 타설시 골재가 다른 재료와의 상대적인 밀도 차이에 의하여 공시체 상부로 부상되는 것으로 관찰되었으며, 이로 인해 시험체 상부에서 파괴가 유도되어 18.7MPa와 22.3MPa의 압축강도를 발현하여 설계기준강도인 30MPa를 충족시키지 못하는 것으로 나타났다.However, in the case of Comparative Example 1 and Comparative Example 2, due to the low density of the composite waste synthetic resin aggregate, it was observed that the aggregate floated to the top of the specimen due to the relative density difference with other materials during concrete placement, and as a result, failure occurred at the top of the test specimen. It was found that the compressive strength of 18.7MPa and 22.3MPa was expressed and did not meet the design standard strength of 30MPa.
또한 비교예의 골재의 경우는 과도한 흡수율을 갖는 것으로 나타났으며, 이는 골재 내부에 기공이 다수 존재함을 의미한다.In addition, the aggregate of Comparative Example was found to have an excessive water absorption, which means that there are many pores inside the aggregate.
따라서 비교예1 및 비교예2의 골재를 활용한 콘크리트의 경우 공기량이 크게 발생되어 설계 목표치인 4.5±1.5%를 충족시키지 못하는 경우도 확인되었다. Therefore, in the case of concrete using the aggregates of Comparative Example 1 and Comparative Example 2, a large amount of air was generated, and it was confirmed that the design target value of 4.5 ± 1.5% was not met.
또한 비교예1 및 비교예2의 경우는 성능향상을 위한 미분말의 미적용 또는 과소한 적용으로 인하여 골재로서의 충분한 밀도 확보가 곤란하여 도 4에 나타낸 것과 같이 재료분리 현상이 관찰되었다.In addition, in the case of Comparative Examples 1 and 2, it was difficult to secure sufficient density as an aggregate due to non-application or insufficient application of fine powder for performance improvement, and as shown in FIG. 4, material separation was observed.
이로써, 발생량이 증가하고 있는 PET, PE, PP, PS, PVC 및 복합재질의 필름류 포장재를 재활용하여 콘크리트에 포함되는 골재를 생산하므로 환경오염에 원인이 되는 폐합성수지를 대량으로 재활용할 수 있고, 복합 폐합성수지를 이용하여 제조되는 골재의 표면형상을 개선하여 시멘트와 골재가 분리되는 것을 방지할 수 있는 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법을 제공할 수 있게 된다.As a result, PET, PE, PP, PS, PVC, and composite material film packaging materials, which are increasing in generation, are recycled to produce aggregates included in concrete, so waste synthetic resins that cause environmental pollution can be recycled in large quantities, and composite It is possible to provide an aggregate for concrete using a composite waste synthetic resin capable of preventing separation of cement and aggregate by improving the surface shape of aggregate produced using the waste synthetic resin, and a concrete manufacturing method including the same.
본 발명은 도면에 도시되는 일 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.Although the present invention has been described with reference to an embodiment shown in the drawings, this is merely exemplary, and those skilled in the art can make various modifications and equivalent other embodiments therefrom. will understand
또한, 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법을 예로 들어 설명하였으나, 이는 예시적인 것에 불과하며, 복합 폐합성수지를 이용하는 콘크리트용 골재 및 이를 구비하는 콘크리트 제조방법이 아닌 다른 제품에도 본 발명의 골재 및 이를 구비하는 제조방법이 사용될 수 있다.In addition, although the aggregate for concrete using the composite waste synthetic resin and the concrete manufacturing method comprising the same have been described as an example, this is only illustrative, and other products other than the aggregate for concrete using the composite waste synthetic resin and the concrete manufacturing method comprising the same have been described. The aggregate of the present invention and a manufacturing method having the same may be used.
따라서 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Therefore, the true technical protection scope of the present invention should be determined by the claims below.
Claims (5)
상기 복합 폐합성수지는, 180~310℃의 온도조건에서 용융하고, 17.5~175RPM의 조건으로 압출하며, 직경 10~50mm 형태로 제조되고,
상기 미분말은, 상기 복합 폐합성수지 100중량부에 대하여 220 내지 350중량부로 혼합되고,
상기 복합 폐합성수지와 상기 성능향상용 미분말의 혼합물은, 팬 타입 믹서, 강제식 믹서, 트윈샤프트식 믹서 중 어느 한 가지의 믹서를 이용하여 15~65RPM의 속도로 60~120초 동안 혼합하여 균질하게 제조하고,
혼합된 상기 복합 폐합성수지와 상기 성능향상용 미분말의 혼합물을 용융 압출장치에서 180~310℃의 온도로 용융하고, 스크루식 교송이송장치에서 1~3분간 혼합하고,
노즐부를 통해 상기 복합 폐합성수지와 상기 성능향상용 미분말의 혼합물을 압출 성형한 후에 압출된 폐합성수지를 골재의 크기별로 절단하여 복합 폐합성수지 굵은골재 및 복합 폐합성수지 잔골재를 제조하고,
시멘트 577kg/m3와, 물 179kg/m3와, 일반 굵은골재 556~585kg/m3와, 일반 잔골재 362~388kg/m3와, 복합 폐합성수지 굵은골재 200kg/m3와, 복합 폐합성수지 잔골재 200kg/m3와, 혼화제 6.9kg/m3를 배합하여 제조되는 콘크리트는 압축강도는 30MPa이상을 확보할 수 있고, 공기량 측정치도 설계 목표치 4.5±1.5%를 충족시키는 것을 특징으로 하는 복합 폐합성수지를 이용하는 콘크리트용 골재.
Composite waste synthetic resin produced by crushing two or more composite waste synthetic resins from among PET, PE, PP, PS, PVC, and composite film to a size of 50 mm or less, and injecting the crushed composite waste synthetic resin into a melting extrusion device to melt and extrude it. synthetic resin; and a fine powder for performance improvement composed of at least one of slag fine powder, coal ash fine powder, silica fume fine powder, and limestone fine powder and mixed with the composite waste synthetic resin, In the concrete aggregate using the composite waste synthetic resin,
The composite waste synthetic resin is melted at a temperature of 180 to 310 ° C, extruded at a temperature of 17.5 to 175 RPM, and manufactured in a form of 10 to 50 mm in diameter,
The fine powder is mixed in 220 to 350 parts by weight based on 100 parts by weight of the composite waste synthetic resin,
The mixture of the composite waste synthetic resin and the fine powder for performance improvement is homogeneously mixed for 60 to 120 seconds at a speed of 15 to 65 RPM using any one of a fan-type mixer, a forced mixer, and a twin-shaft mixer. manufacture,
The mixture of the mixed waste synthetic resin and the fine powder for performance improvement is melted at a temperature of 180 to 310 ° C in a melt extrusion device, and mixed for 1 to 3 minutes in a screw-type transfer device,
After extruding a mixture of the composite waste synthetic resin and the fine powder for performance improvement through a nozzle unit, the extruded waste synthetic resin is cut according to the size of the aggregate to produce composite waste synthetic resin coarse aggregate and composite waste synthetic resin fine aggregate,
cement 577 kg/m 3 , water 179 kg/m 3 , 556~585kg/m 3 of general coarse aggregate, 362~388kg/m 3 of general fine aggregate, 200kg/m 3 of composite waste synthetic resin coarse aggregate, 200kg/m 3 of composite waste synthetic resin fine aggregate, and 6.9kg/m 3 of admixture The concrete produced by the method can secure a compressive strength of 30 MPa or more, and an aggregate for concrete using a composite waste synthetic resin, characterized in that the measured air volume also meets the design target of 4.5 ± 1.5%.
상기 골재는, 밀도 1.5~1.8g/cm3로 제조되는 것을 특징으로 하는 복합 폐합성수지를 이용하는 콘크리트용 골재.
According to claim 1,
The aggregate is an aggregate for concrete using a composite waste synthetic resin, characterized in that produced with a density of 1.5 ~ 1.8g / cm 3 .
상기 골재는, 콘크리트 1m3 당 최대 400kg까지 적용 가능한 것을 특징으로 복합 폐합성수지를 이용하는 콘크리트용 골재.
According to claim 1,
The aggregate is an aggregate for concrete using a composite waste synthetic resin, characterized in that it can be applied up to 400 kg per 1 m 3 of concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200160274A KR102496536B1 (en) | 2020-11-25 | 2020-11-25 | Aggregates for concrete using composite waste resin and the method of manufacture of concrete equipped with them |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200160274A KR102496536B1 (en) | 2020-11-25 | 2020-11-25 | Aggregates for concrete using composite waste resin and the method of manufacture of concrete equipped with them |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20220072543A KR20220072543A (en) | 2022-06-02 |
| KR102496536B1 true KR102496536B1 (en) | 2023-02-06 |
Family
ID=81985410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020200160274A KR102496536B1 (en) | 2020-11-25 | 2020-11-25 | Aggregates for concrete using composite waste resin and the method of manufacture of concrete equipped with them |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102496536B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240070998A (en) * | 2022-11-15 | 2024-05-22 | 이태수 | Manufacturing method of sand substitute for concrete manufacturing |
| KR102658534B1 (en) * | 2023-08-25 | 2024-04-18 | 주식회사 뉴보텍 | Sectional Repair Material composition Using Plastic Waste, and Manufacturing Method of the Same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100247735B1 (en) | 1997-09-11 | 2000-03-15 | 하진규 | Construction aggregate made of a waste-synthetic resin and manufacturing method of the same |
| KR102120445B1 (en) | 2019-12-06 | 2020-06-10 | 한국건설기술연구원 | Artificial Aggregate Made of Industrial By-products And Recycled Plastic, And Method for Manufacturing the Same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016084007A1 (en) * | 2014-11-24 | 2016-06-02 | Mnz Holdings Limited | Extruded plastic aggregate for concrete |
-
2020
- 2020-11-25 KR KR1020200160274A patent/KR102496536B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100247735B1 (en) | 1997-09-11 | 2000-03-15 | 하진규 | Construction aggregate made of a waste-synthetic resin and manufacturing method of the same |
| KR102120445B1 (en) | 2019-12-06 | 2020-06-10 | 한국건설기술연구원 | Artificial Aggregate Made of Industrial By-products And Recycled Plastic, And Method for Manufacturing the Same |
Non-Patent Citations (1)
| Title |
|---|
| 조병완외 3인., 대한토목학회논문집., 제25권 제2A호, pp. 295-300 (2005. 3. 공지) 1부.* |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220072543A (en) | 2022-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102496536B1 (en) | Aggregates for concrete using composite waste resin and the method of manufacture of concrete equipped with them | |
| US20030041782A1 (en) | Fly ash/mixed plastic aggregate and products made therefrom | |
| US8568645B2 (en) | Method of making structural members using waste and recycled plastics | |
| CN104893084B (en) | A kind of fibre reinforced polyethylene waterproof roll and preparation method | |
| KR102020594B1 (en) | Recycled cold asphalt concrete mixture and Construction thereof | |
| CN104260259B (en) | Preparation method for leftover material molded parts of automotive interior parts | |
| EP0899072A1 (en) | Method for producing plastic forms from waste synthetic resin | |
| KR100818756B1 (en) | Recycling Disposal System for Waste Plastic and Recycling Disposal Method for the Same | |
| CN104403333A (en) | Modified asphalt cement particle, preparation method and applications thereof | |
| CN112805307A (en) | Novel composition for producing plastic composites and method thereof | |
| CN105482305B (en) | A kind of application of waste residues of polished tiles and recoverying and utilizing method and system | |
| KR102372108B1 (en) | Manufacturing Method of Mortar for Sectional Repair by Recycled Aggregate Using Plastic Waste, and Sectional Repair Mortar Manufactured by the Same | |
| KR102264721B1 (en) | Light weight aggregate manufacturing method using organic sludge and stone sludge in combination | |
| Arnandha et al. | Study of Utilizations of Recycled LDPE Plastic and Stone Ash Waste from Remaining Split Stone Fragments for Block Paving Application | |
| KR102272182B1 (en) | Method for preparing artificial aggregate using recycled film materials | |
| Swan et al. | Properties of synthetic lightweight aggregates for use in pavement systems | |
| JP3326165B2 (en) | Manufacturing method of aggregate granular material using waste as the main raw material | |
| Nili et al. | A review on the use of various kinds of debris and demolitions in concrete and mortar mixes | |
| KR101462082B1 (en) | Carpet recycling fiber for fiber-reinforced asphalt/cement concrete, method thereof, and fiber-reinforced asphalt/cement concrete composite | |
| Ponmalar et al. | Waste recycled plastic granules substitute for aggregate in concrete–Review | |
| KR102718063B1 (en) | Method for manufacturing resource circulation artificial aggregate using stone powder sludge and recycled polypropylene | |
| KR20020024279A (en) | Glass Resin Ceramic (G.R.C.) composition and method for preparing the same | |
| CN110252779A (en) | A kind of technique carrying out Wood plastic boards integration production using mineralized waste | |
| KR102642141B1 (en) | Composition for preparing eco-friendly composite artificial stone using waste plastic and waste stone powder | |
| JP7562199B2 (en) | Polymer composite material and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |