KR20210067574A - Method for preparing artificial aggregate using recycled film materials - Google Patents
Method for preparing artificial aggregate using recycled film materials Download PDFInfo
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- KR20210067574A KR20210067574A KR1020190157342A KR20190157342A KR20210067574A KR 20210067574 A KR20210067574 A KR 20210067574A KR 1020190157342 A KR1020190157342 A KR 1020190157342A KR 20190157342 A KR20190157342 A KR 20190157342A KR 20210067574 A KR20210067574 A KR 20210067574A
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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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
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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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/023—Fired or melted materials
- C04B18/026—Melted materials
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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
- C04B18/18—Waste materials; Refuse organic
- C04B18/20—Waste materials; Refuse organic from macromolecular compounds
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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
- Y02W30/62—Plastics recycling; Rubber recycling
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
본 발명은 재활용 필름 포장재를 이용한 인공골재 제조방법에 관한 것으로, 보다 상세하게는 폐필름 또는 폐비닐 포장재를 용융, 성형한 후 시멘트 페이스트를 상기 성형물 외부에 부착시켜 인공골재를 제조하는 방법에 관한 것이다.The present invention relates to a method for manufacturing artificial aggregate using a recycled film packaging material, and more particularly, to a method for manufacturing an artificial aggregate by melting and molding a waste film or a waste vinyl packaging material and attaching a cement paste to the outside of the molding .
현재, 식품류 등의 포장에는 방습, 미려한 외장 등의 여러가지 목적을 위해 PET, PP와 PE 등의 플라스틱 필름층과 알루미늄층으로 구성된 포장용 다층필름이 주로 사용되고 있으며, 이러한 포장용 다층필름의 사용은 계속적으로 증가하고 있다. 이를 폐기할 경우 환경오염의 발생 및 자원낭비 등의 사회, 경제적 문제점을 야기하게 되므로 정부에서는 자원의 절약과 재활용 촉진에 관한 법률을 제정하여 이러한 폐필름 또는 폐비닐을 재활용 중점관리 품목으로 지정하여 관리하고 있다.Currently, multilayer films for packaging consisting of plastic film layers such as PET, PP and PE and aluminum layers are mainly used for packaging of foodstuffs for various purposes such as moisture-proof and beautiful exterior, and the use of these multilayer films for packaging continues to increase are doing Disposing of them causes social and economic problems such as environmental pollution and resource waste. Therefore, the government enacted the Act on the Promotion of Saving and Recycling of Resources and designating and managing these waste films or waste vinyls as key recycling items. are doing
폐비닐 또는 폐필름을 인공골재로 재활용하게 된다면, 기존 골재의 취약점인 흡수율을 보완할 수 있어 콘크리트의 건조수축 및 내구성이 향상되므로 양질의 골재품질 대체효과, 폐자원의 재활용 및 환경오염의 발생을 예방할 수 있는 일석삼조의 효과를 얻을 수 있을 것이다.If waste vinyl or waste film is recycled as artificial aggregate, the absorption rate, which is the weak point of the existing aggregate, can be supplemented, and the drying shrinkage and durability of concrete are improved. You will be able to get the effect of one stone and three birds that can be prevented.
한국 등록특허 제1740813호에서는 폐 플라스틱으로부터 폴리염화비닐(PVC)를 추출하여 이를 이용한 차음재에 관한 것으로서 차음성과 단열성이 우수한 폐 플라스틱의 폴리염화비닐을 재활용한 차음재 및 그 제조방법에 관하여 개시하고 있으나, 흡수율을 개선한 인공골재에 대하여 기재하고 있지 않다.Korean Patent Registration No. 1740813 relates to a sound insulation material using polyvinyl chloride (PVC) extracted from waste plastic, and discloses a sound insulation material obtained by recycling polyvinyl chloride of waste plastic having excellent sound insulation and thermal insulation properties, and a method for manufacturing the same. However, it does not describe artificial aggregates with improved water absorption.
본 발명은 경제성이 충분하고 시멘트, 콘크리트와의 접착력이 우수하여 건축용 골재로 손색이 없는 폐비닐 또는 폐필름을 재활용한 인공골재 제조방법을 제공하기 위한 것으로, 특히 재활용 성형물의 표면 처리를 통해 시멘트와의 결합력이 증대되어 활용도가 우수한 인공골재 제조방법을 제공하고자 한다.The present invention is to provide a method for manufacturing artificial aggregate by recycling waste vinyl or waste film, which is economical enough and has excellent adhesion to cement and concrete, which is comparable to construction aggregate. An object of the present invention is to provide a method for manufacturing artificial aggregates with excellent usability by increasing the bonding strength of
상기 과제를 해결하기 위해 본 발명은 선별된 폐비닐 또는 폐필름을 세척하고 소정 크기의 입도로 파쇄하는 단계; 상기 파쇄된 폐비닐 또는 폐필름을 용융하여 슬러지를 형성하는 단계; 상기 슬러지를 소정의 형태로 성형하는 단계; 및 상기 성형된 성형물 표면에 시멘트 페이스트를 부착한 후 열처리하는 단계; 를 포함하는 폐필름 또는 폐비닐을 재활용한 인공골재 제조방법을 제공한다. In order to solve the above problems, the present invention includes the steps of washing the selected waste vinyl or waste film and crushing it to a particle size of a predetermined size; melting the crushed waste vinyl or waste film to form sludge; forming the sludge into a predetermined shape; and heat-treating after attaching the cement paste to the surface of the molded article; It provides a method for manufacturing an artificial aggregate recycled waste film or waste vinyl comprising a.
또한 상기 성형물 표면에 규칙적인 홈을 성형하여 시멘트 페이스트와의 결합력을 증대시키는 단계를 추가로 포함하는 것을 특징으로 하는 인공골재 제조방법을 제공한다.In addition, it provides an artificial aggregate manufacturing method, characterized in that it further comprises the step of forming regular grooves on the surface of the molding to increase the bonding force with the cement paste.
또한 상기 성형물을 80~100℃에서 유류기화하여 시멘트 페이스트와의 결합력을 증대시키는 단계를 추가로 포함하는 것을 특징으로 하는 인공골재 제조방법을 제공한다.In addition, it provides an artificial aggregate manufacturing method, characterized in that it further comprises the step of increasing the bonding strength with the cement paste by oil vaporizing the molded product at 80 ~ 100 ℃.
또한 상기 방법에 따라 제조된 인공골재를 제공한다.It also provides an artificial aggregate manufactured according to the above method.
본 발명에 의할 경우 폐비닐 또는 폐필름을 재활용하여 친환경적인 인공골재 제조방법을 제공할 수 있으며, 본 발명에 따라 제조된 인공골재는 수분 흡수율이 거의 없으며 시멘트 페이스트와의 결합력이 증대되어 건설현장에서 경량골재를 대체하여 유용하게 활용이 될 수 있다.According to the present invention, it is possible to provide an eco-friendly artificial aggregate manufacturing method by recycling waste vinyl or waste film, and the artificial aggregate produced according to the present invention has almost no water absorption rate and has increased bonding strength with cement paste, so that construction sites It can be usefully used as a substitute for lightweight aggregate in
이하에서는 본 발명의 바람직한 실시예를 상세하게 설명한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐리게 할 수 있다고 판단되는 경우 그 상세한 설명을 생략하기로 한다. 명세서 전체에서, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한, 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있음을 의미한다.Hereinafter, preferred embodiments of the present invention will be described in detail. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.
본 발명은 선별된 폐비닐 또는 폐필름을 세척하고 소정 크기의 입도로 파쇄하는 단계; 상기 파쇄된 폐비닐 또는 폐필름을 용융하여 슬러지를 형성하는 단계; 상기 슬러지를 소정의 형태로 성형하는 단계; 및 상기 성형된 성형물 표면에 시멘트 페이스트를 부착한 후 열처리하는 단계;를 포함하는 폐필름 또는 폐비닐을 재활용한 인공골재 제조방법을 개시한다. The present invention comprises the steps of washing the selected waste vinyl or waste film and crushing it to a particle size of a predetermined size; melting the crushed waste vinyl or waste film to form sludge; forming the sludge into a predetermined shape; and heat-treating after attaching cement paste to the surface of the molded article; discloses a method for manufacturing an artificial aggregate recycled from a waste film or waste vinyl comprising.
상기 폐비닐 또는 폐필름을 세척하고 소정 크기의 입도로 파쇄하는 단계는 인공골재로 가공할 폐비닐 또는 폐필름에서 이물질을 제거하고 표면적을 증가시켜 가공성을 향상시키기 위해서 적절한 크기로 분쇄하는 단계이다. 상기 파쇄하는 단계에서는 세척된 폐비닐 또는 폐필름을 한 변의 길이가 1-50 mm, 바람직하게는 10-40 mm, 더욱 바람직하게는 20-30 mm인 불규칙한 모양의 다각형으로 분쇄하여 상기 폐비닐 또는 폐필름의 표면적을 증가시킬 수 있다.The step of washing the waste vinyl or waste film and crushing it to a particle size of a predetermined size is a step of removing foreign substances from the waste vinyl or waste film to be processed into artificial aggregate and pulverizing it to an appropriate size to improve processability by increasing the surface area. In the crushing step, the washed waste vinyl or waste film is pulverized into irregularly shaped polygons having a side length of 1-50 mm, preferably 10-40 mm, more preferably 20-30 mm, and the waste vinyl or It is possible to increase the surface area of the waste film.
상기 폐비닐 또는 폐필름은 그 종류가 특별히 제한되지 않으며 PVC, PET, 폴리에틸렌, 폴리프로필렌 등 당업계에서 사용되는 비닐 또는 필름이라면 모두 본 발명의 범위에 포함이 될 수 있다.The type of the waste vinyl or waste film is not particularly limited, and any vinyl or film used in the art such as PVC, PET, polyethylene, polypropylene, etc. may be included in the scope of the present invention.
상기 슬러지를 형성하는 단계에서는 상기 소정 크기의 입도록 파쇄된 폐비닐 또는 폐필름 분쇄물을 반응기에 투입한 후 고온으로 용융하여 슬러지를 제조한다. 상기 용융 온도는 100~300℃일 수 있고, 바람직하게는 150~270℃일 수 있다. 상기 용융 온도가 100℃ 미만이면 상기 파쇄된 폐비닐 또는 폐필름 분쇄물이 분해되지 않을 수 있고, 300℃를 초과하면 온도가 높아 상기 파쇄된 폐비닐 또는 폐필름 분쇄물이 2차 용융, 즉 탄화수소의 열분해가 일어날 수 있다.In the step of forming the sludge, the pulverized waste vinyl or waste film of the predetermined size is put into a reactor and then melted at a high temperature to prepare sludge. The melting temperature may be 100 ~ 300 ℃, preferably 150 ~ 270 ℃. If the melting temperature is less than 100 ℃, the crushed waste vinyl or waste film pulverized product may not be decomposed, and if it exceeds 300° C., the temperature is high so that the crushed waste vinyl or waste film pulverized product is secondary melting, that is, hydrocarbon thermal decomposition may occur.
상기 성형하는 단계에서는 파쇄된 폐비닐 또는 폐필름을 용융한 슬러지를 소정의 형태로 성형한다. 다만, 성형 형태가 특별히 제한되지 않으며 제조된 슬러지를 일정한 형상의 성형물로 성형하되, 건설현장에서 적용하고자 하는 목적에 따라 통상의 기술자가 그 크기 및 형상을 적절히 선택하여 성형할 수 있다. In the forming step, the crushed waste vinyl or waste film is melted and sludge is molded into a predetermined shape. However, the molding form is not particularly limited, and the manufactured sludge is molded into a molded product of a certain shape, but a person skilled in the art may appropriately select the size and shape according to the purpose of application at the construction site.
상기 시멘트 페이스트를 부착한 후 열처리하는 단계는 성형된 재활용 폐비닐 성형물의 표면에 시멘트 페이스트를 부착한 후 경화시켜 최종적인 인공골재를 제조하는 단계이다.The step of heat-treating after attaching the cement paste is a step of manufacturing the final artificial aggregate by attaching the cement paste to the surface of the molded recycled waste vinyl molding and curing it.
상기 시멘트 페이스트는 보통 포틀랜드 시멘트 및 물을 1:1~5 중량비로 혼합하여 제조할 수 있고, 바람직하게는 1:1~3 중량비로 혼합하여 제조할 수 있다. The cement paste can usually be prepared by mixing Portland cement and water in a ratio of 1:1 to 5 by weight, preferably, by mixing it in a ratio of 1:1 to 3 by weight.
상기 열처리는 상기 재활용 폐비닐 성형물에 시멘트 페이스트를 부착한 후 성형물을 80~100℃에서 소정 시간 동안 열처리하여 경화시키는 단계이며, 이때 상기 폐비닐 성형물 표면의 시멘트 페이스트를 50~80%로 경화시키는 것이 바람직하다. The heat treatment is a step of attaching the cement paste to the recycled waste vinyl moldings and then curing the moldings by heat treatment at 80 to 100° C. for a predetermined time, in which case the cement paste on the surface of the waste vinyl moldings is hardened to 50 to 80%. desirable.
한편, 본 발명에서는 상기 재활용 폐비닐 성형물의 표면에 시멘트 페이스트와의 접촉면적을 넓혀 부착력이 증대될 수 있도록, 상기 재활용 폐비닐 성형물의 표면에 규칙적인 홈(예를 들면, 골프공의 딤플과 같은 형상)을 성형하거나 재활용 폐비닐 성형물을 관통하는 일정한 수의 관을 형성시킬 수 있다. On the other hand, in the present invention, regular grooves (for example, such as dimples of a golf ball) on the surface of the recycled waste vinyl molding to increase the adhesion by increasing the contact area with the cement paste on the surface of the recycled waste vinyl molding shape) or to form a certain number of tubes penetrating the recycled waste vinyl molding.
또한 상기 재활용 폐비닐 성형물을 80~100℃에서 소정 시간 동안 열처리하여 유류기화시키는 단계를 추가로 포함할 수 있다. 상기 재활용 폐비닐 성형물의 표면이 유류 기화되면 표면이 용융되어 끈적한 상태됨으로써 부착력이 증대되며, 상기 표면에 시멘트 페이스트가 더욱 단단하게 부착될 수 있다.In addition, the step of heat-treating the recycled waste vinyl molding at 80 ~ 100 ℃ for a predetermined time may further include the step of oil vaporization. When the surface of the recycled waste vinyl molding is oil vaporized, the surface is melted and becomes sticky, thereby increasing adhesion, and the cement paste can be more firmly attached to the surface.
상기 방법에 따라 제조된 인공골재는 이후 목적하는 크기의 인공골재를 선별하기 위하여 체로 선별하는 단계를 추가로 수행할 수 있으며, 본 발명은 상기 방법에 따라 수분 흡수율이 낮고 시멘트 페이스트와 부착력이 증대된 재활용 폐비닐 또는 폐필름 유래의 인공골재를 개시한다.The artificial aggregate produced according to the above method may be further subjected to a sieving step to select artificial aggregate of a desired size thereafter. According to the method, the present invention has a low water absorption rate and increased adhesion to cement paste. Disclosed is an artificial aggregate derived from recycled waste vinyl or waste film.
이하 구체적인 실시예를 통해 본 발명에 따라 제조된 인공골재를 상세히 설명한다.Hereinafter, the artificial aggregate manufactured according to the present invention will be described in detail through specific examples.
실시예Example
플라스틱 재활용을 위한 선별과정에서 버려지는 폐비닐을 컨베이어 벨트로 이동시키면서 큰 이물질과 파쇄기의 감김현상을 유발하는 테이프류를 제거하고 분류한 폐비닐을 세척 후 햄머밀형 슈레더(shredder)를 이용하여 파쇄하고, 분쇄기로 20mm∼30mm의 크기로 분쇄하였다.While moving the waste vinyl discarded in the sorting process for plastic recycling to a conveyor belt, remove large foreign substances and tapes that cause the shredder to wind up, wash the sorted waste vinyl and shred it using a hammer mill type shredder. , pulverized to a size of 20 mm to 30 mm with a grinder.
분쇄한 폐비닐을 150∼270℃의 온도로 배출구에 직경 9mm의 구멍이 뚫려있는 형틀이 부착된 압출기에서 용융 및 압출하면서 연속회전 칼을 이용하여 길이가 약 7mm가 되도록 절단하여 성형물을 제작하였다.The pulverized waste vinyl was melted and extruded in an extruder with a mold having a hole of 9 mm in diameter at the outlet at a temperature of 150 to 270 ° C. and cut to a length of about 7 mm using a continuously rotating knife to prepare a molded product.
상기 성형물을 90℃에서 30분간 열처리한 후 시멘트 페이스트(보통 포틀랜드 시멘트 및 물을 1:1~3 중량비로 혼합)를 부착하고 다시 60~90℃에서 10~30분간 열처리하여 폐비닐 인공골재를 제조하였다.After heat-treating the molded product at 90° C. for 30 minutes, cement paste (usually portland cement and water mixed in a 1:1 to 3 weight ratio) is attached, and heat-treated at 60-90° C. for 10-30 minutes to produce waste vinyl artificial aggregate did.
비교예comparative example
상기 실시예에서 폐비닐을 첨가하지 않은 것을 제외하고는 동일한 방법으로 인공골재를 제조하였다.An artificial aggregate was prepared in the same manner as in the above example, except that waste vinyl was not added.
시험예test example 1 One
상기 실시예에서 제조된 인공골재를 KS F 2526에 따라 물성을 측정하고, 그 결과를 하기 표 1에 나타내었다.The physical properties of the artificial aggregate prepared in the above Examples were measured according to KS F 2526, and the results are shown in Table 1 below.
상기 표 1을 참조하면, 제조예에서 제조된 인공 골재는 골재로서 사용하기에 적합한 것을 확인할 수 있다.Referring to Table 1, it can be seen that the artificial aggregate prepared in Preparation Example is suitable for use as an aggregate.
시험예test example 2 2
상기 실시예 및 비교예에서 제조된 인공골재를 대상으로 흡수율을 측정하였다.Water absorption was measured for the artificial aggregates prepared in Examples and Comparative Examples.
흡수율은 제조된 인공골재 시편을 건조기에 넣고 105±10℃에서 24시간 동안 공기 중탕을 통해 건조하여 데시케이터에서 방랭한 후 건조 무게(m1) 측정한 후 시편 상부와 수면 사이 거리를 50-60mm로 하여 20±5℃의 물속에서 24시간 정치하였다. 시편을 물속에서 꺼내어 재빨리 헝겊으로 표면의 수분을 닦아 낸 후 공시체의 무게를 측정(m2)하여 하기 수학식 1에 따라 흡수율을 계산하였다.For the absorption rate, put the prepared artificial aggregate specimen in a dryer, dry it through an air bath at 105±10℃ for 24 hours, let it cool in a desiccator , measure the dry weight (m 1 ), and then measure the distance between the top of the specimen and the water surface by It was set to 60 mm and left still in water at 20±5° C. for 24 hours. After taking out the specimen from the water and quickly wiping off the moisture on the surface with a cloth, the weight of the specimen was measured (m 2 ), and the absorption rate was calculated according to Equation 1 below.
[수학식 1][Equation 1]
흡수율(%)=(m2-m1/m1)×100Absorption rate (%)=(m 2 -m 1 /m 1 )×100
상기 표 2를 참조하면, 본 발명의 일 실시예에 따른 인공골재는 흡수율이 매우 낮아 실제 건설현장에서 사용되는 경량골재의 대체재로서 활용될 수 있음을 알 수 있다.Referring to Table 2, it can be seen that the artificial aggregate according to an embodiment of the present invention has a very low water absorption and can be used as a substitute for lightweight aggregate used in actual construction sites.
시험예 3Test Example 3
본 발명에 따른 인공골재의 적용성을 확인하기 위해 상기 실시예에 따라 제조된 인공 골재를 포함하여 하기 표 3과 같이 콘크리트를 배합한 후 굳지 않은 콘크리트의 물성(슬럼프) 및 굳은 콘크리트의 물성(절건밀도, 압축강도)을 각각 KS F 2402 및 KS F 2405에 따라 측정하고, 그 결과를 하기 표 4에 나타내었다.In order to confirm the applicability of the artificial aggregate according to the present invention, the physical properties (slump) and hardened concrete properties (absolute dryness) of concrete that have not been hardened after mixing the concrete as shown in Table 3 including the artificial aggregate prepared according to the above Examples density, compressive strength) were measured according to KS F 2402 and KS F 2405, respectively, and the results are shown in Table 4 below.
상기 표 4에서와 같이 본 발명에 따른 인공 골재를 사용한 콘크리트는 재료분리현상 없이 정상적인 배합이 가능했다. 또한, 인공 골재 치환률이 증가함에 따라 슬럼프는 우수한 유동성을 보였으며, 인공 골재 치환율이 100%일 때 절건 밀도는 1,738 kg/m3으로 경량이면서 압축강도는 24.1 MPa로 우수한 것을 확인할 수 있고, 이러한 결과는 인공 골재와 시멘트 시멘트 페이스트의 결합력이 우수해져 인공 골재와 시멘트 메트릭스 사이의 공극이 저감되어 발생한 것으로 판단된다.As shown in Table 4, the concrete using the artificial aggregate according to the present invention was able to be mixed normally without material separation. In addition, as the artificial aggregate replacement rate increased, the slump showed excellent fluidity, and when the artificial aggregate replacement rate was 100%, the absolute dry density was 1,738 kg/m 3 , which was lightweight and had excellent compressive strength of 24.1 MPa. As a result, it is judged that the void between the artificial aggregate and the cement matrix was reduced due to the excellent bonding strength between the artificial aggregate and the cement-cement paste.
이상으로 본 발명의 바람직한 실시예를 상세하게 설명하였다. 본 발명의 설명은 예시를 위한 것이며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태 쉽게 변형이 가능하다는 것을 이해할 수 있을 것이다.The preferred embodiment of the present invention has been described in detail above. The description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains will understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention.
따라서, 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미, 범위 및 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the scope of the present invention is indicated by the claims to be described later rather than the above detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concept of the claims are included in the scope of the present invention. should be interpreted
Claims (4)
상기 파쇄된 폐비닐 또는 폐필름을 용융하여 슬러지를 형성하는 단계;
상기 슬러지를 소정의 형태로 성형하는 단계; 및
상기 성형된 성형물 표면에 시멘트 페이스트를 부착한 후 열처리하는 단계;
를 포함하는 폐필름 또는 폐비닐을 재활용한 인공골재 제조방법. Washing the selected waste vinyl or waste film and crushing it to a particle size of a predetermined size;
melting the crushed waste vinyl or waste film to form sludge;
forming the sludge into a predetermined shape; and
heat-treating after attaching the cement paste to the surface of the molded article;
A method for manufacturing artificial aggregates from recycled waste film or waste vinyl, comprising:
상기 성형물 표면에 규칙적인 홈을 성형하여 시멘트 페이스트와의 결합력을 증대시키는 단계를 추가로 포함하는 것을 특징으로 하는 인공골재 제조방법.According to claim 1,
The method for manufacturing artificial aggregate, characterized in that it further comprises the step of forming regular grooves on the surface of the molded product to increase bonding strength with the cement paste.
상기 성형물을 80~100℃에서 유류기화하여 시멘트 페이스트와의 결합력을 증대시키는 단계를 추가로 포함하는 것을 특징으로 하는 인공골재 제조방법.According to claim 1,
Method for producing artificial aggregate, characterized in that it further comprises the step of increasing the bonding force with the cement paste by oil vaporizing the molded product at 80 ~ 100 ℃.
An artificial aggregate manufactured according to the method of any one of claims 1 to 3.
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|---|---|---|---|---|
| JP2002255614A (en) * | 2001-02-23 | 2002-09-11 | Sekisui Chem Co Ltd | Artificial plastic lightweight aggregate |
| KR20060004110A (en) * | 2004-07-08 | 2006-01-12 | 김원만 | A making methods of construction materals by used composition plastics and the construction materals |
| JP2006169066A (en) * | 2004-12-17 | 2006-06-29 | Tanaka Kosan Kk | Light-weight aggregate |
| KR20130099526A (en) * | 2012-02-29 | 2013-09-06 | 인하대학교 산학협력단 | Manufacturing method of concrete using waste vinyl aggregate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002255614A (en) * | 2001-02-23 | 2002-09-11 | Sekisui Chem Co Ltd | Artificial plastic lightweight aggregate |
| KR20060004110A (en) * | 2004-07-08 | 2006-01-12 | 김원만 | A making methods of construction materals by used composition plastics and the construction materals |
| JP2006169066A (en) * | 2004-12-17 | 2006-06-29 | Tanaka Kosan Kk | Light-weight aggregate |
| KR20130099526A (en) * | 2012-02-29 | 2013-09-06 | 인하대학교 산학협력단 | Manufacturing method of concrete using waste vinyl aggregate |
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| KR20230151143A (en) * | 2022-04-22 | 2023-11-01 | 주창수 | Manufacturing method of construction materials using waste |
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