KR100332571B1 - Manufacturing of Light Weight Artificial Aggregates by Garbages from Plastic Sorting Plants - Google Patents
Manufacturing of Light Weight Artificial Aggregates by Garbages from Plastic Sorting Plants Download PDFInfo
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- KR100332571B1 KR100332571B1 KR1019990064799A KR19990064799A KR100332571B1 KR 100332571 B1 KR100332571 B1 KR 100332571B1 KR 1019990064799 A KR1019990064799 A KR 1019990064799A KR 19990064799 A KR19990064799 A KR 19990064799A KR 100332571 B1 KR100332571 B1 KR 100332571B1
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- waste plastic
- product
- plastic end
- waste
- extruder
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- 239000004033 plastic Substances 0.000 title claims abstract description 62
- 229920003023 plastic Polymers 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 51
- 238000011282 treatment Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 238000010298 pulverizing process Methods 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims description 7
- 238000004513 sizing Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 4
- 208000001034 Frostbite Diseases 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000013502 plastic waste Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 206010011906 Death Diseases 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
본 발명은 폐플라스틱 종말처리품을 이용한 인조골재의 제조방법에 관한 것이다.The present invention relates to a method for producing artificial aggregate using waste plastic end treatment.
본 발명은 폐플라스틱 종말처리품을 컨베이어 벨트로 이동시키면서 1차로 이물질을 제거하는 공정과; 이들을 파쇄 후 2차로 금속 및 이물질을 제거하는 공정과; 상기의 2차 이물질 제거 공정후 폐플라스틱 종말처리품을 분쇄하는 공정과; 분쇄한 폐플라스틱 종말처리품을 압출기(1)에서 압출용융하여 폐플라스틱 종말처리품을 반죽상태로 용융하는 공정과; 상기 공정의 반죽상태 용융물을 압축기(2)에 결합된 크기조절 노즐(2)을 통해 외부로 배출하고 압출기(1) 외부에 존재하며, 타이머( timer)에 의해 작동되는 솔레노이드 밸브(solenoid valve)(4)(4')에 연결되어 있는 선형 커터기를 상향(5) 및 하향(5')으로 왕복운동시켜 용융된 폐플라스틱 종말처리품(7)을 절단하는 공정과; 이것을 냉수(3)에서 냉각시키는 공정으로 이루어진다.The present invention comprises the steps of removing foreign matter primarily while moving the waste plastic end-treated product to the conveyor belt; Crushing them and removing the metal and foreign matters secondly; Pulverizing the waste plastic end treatment product after the second foreign matter removal process; The pulverized waste plastics finished product is melted by extrusion in the extruder (1) Melting the waste plastic end-processed product in a dough state; The dough melt of the process is discharged to the outside through the size control nozzle (2) coupled to the compressor (2) and is present outside the extruder (1), a solenoid valve (solenoid valve) operated by a timer ( 4) a step of cutting the molten waste plastic end-processed product 7 by reciprocating the linear cutter connected to (4 ') up (5) and down (5'); It consists of the process of cooling this in cold water 3.
본 발명은 폐플라스틱의 종말처리품을 이용하여 인조골재의 제조에 이용함으로써 폐플라스틱의 종말처리품 자체의 처리문제 뿐만 아니라 폐플라스틱의 재활용을 촉진함과 동시에 각종 공사장에서 천연골재 부족으로 야기되는 어려움의 해결을 목적으로 한다.The present invention is used in the manufacture of artificial aggregate using the end-processed products of waste plastics as well as the disposal of the end-processed products of waste plastics as well as to promote the recycling of waste plastics and at the same time caused by the lack of natural aggregates at various construction sites For the purpose of resolution.
Description
본 발명은 폐플라스틱 종말처리품을 이용한 경량 인조골재의 제조방법에 관한 것이다.The present invention relates to a method for producing lightweight artificial aggregate using waste plastic end treatment products.
1909년 최초의 합성수지인 페놀수지가 만들어진 이후 플라스틱공업은 석유공업의 발전과 함께 눈부시게 발전하여 이제 플라스틱은 우리 생활 속에서 떼려야 뗄 수 없는 중요한 재료가 되었다.Since the creation of the first synthetic resin, phenolic resin in 1909, the plastics industry developed remarkably with the development of the petroleum industry, and plastics are now an indispensable material in our lives.
그러나 20세기 후반 환경오염 문제가 전세계적인 관심사로 대두되면서 부각되기 시작한 폐플라스틱의 처리문제가 심각한 문제로 부각되고 있으며 앞으로 21세기에 지속적으로 해결해야 하는 문제가 되었다.However, as the problem of environmental pollution in the late 20th century has become a global concern, the disposal of waste plastics has emerged as a serious problem, and it has become a problem to be solved continuously in the 21st century.
폐플라스틱의 처리는 땅에 매립하거나 연소시켜 없애버리는 방법이 있으나 땅에 매립할 경우 플라스틱의 밀도가 낮아 용적을 많이 차지할 뿐만 아니라 분해되는데도 시간이 오래 소요되어 매립지난을 가중시키며 연소시에는 유독성 가스를 대량 배출하여 지구 온난화의 원인이 될 뿐만 아니라 생태계에 치명적인 영향을 미칠 수 있기 때문에 함부로 소각시킬 수도 없는 실정이다.Waste plastics can be landfilled or burned away, but when they are landfilled, they have a low density of plastics, so they take up a lot of volume and take a long time to decompose. It can not be incinerated because it can not only cause global warming by causing a large amount of gas, but also have a fatal effect on the ecosystem.
이러한 폐플라스틱 문제를 해결하기 위해 플라스틱의 성질이 비슷한 것을 기계 또는 수작업으로 재질별로 분리한 후 이들을 재활용하거나 또는 특수한 압출기( extruder)를 이용하여 혼합재생에 의한 저급의 인조목재로 재활용하여 사용하고 있다.In order to solve the waste plastic problem, similar plastic properties are separated by materials by machine or by hand and then recycled or recycled into low-grade artificial wood by mixing and regeneration using a special extruder.
그러나 폐플라스틱의 재활용에도 심각한 문제점이 있는데 이는 바로 종말처리품의 발생이다. 종말처리품이란 달리 분류하기 힘든 비범용(非凡用)의 각종 플라스틱류외에 알루미늄, 목재, 종이, 금속과 같은 이물질이 포함된 플라스틱류 또는 여러 종류의 플라스틱이 같이 혼재되어 있는 것으로서 용어에서 알 수 있듯이 폐플라스틱에서 유용하게 재활용할 수 있는 것을 골라내어 쓰레기로 버려지는 것이다. 이러한 종말처리품들은 전체 폐플라스틱에서 약 20%를 차지하고 있으며 폐플라스틱의 재활용율이 높아질수록 종말처리품은 역시 증가하여 폐플라스틱의 재활용의 문제점으로 대두되고 있다.However, there is a serious problem in the recycling of waste plastics, which is the occurrence of end-of-life products. The end-processed product is a mixture of various kinds of non-general plastics, which are difficult to classify, and plastics containing foreign substances such as aluminum, wood, paper, and metal, or various kinds of plastics. The waste plastics are picked up for recycling and are thrown away as garbage. These end products account for about 20% of the total waste plastics, and as the recycling rate of waste plastics increases, the end products also increase, resulting in a problem of recycling waste plastics.
한편 폐플라스틱의 종말처리품 처리는 상기에서 언급한 매립 또는 소각에만 의존하고 있어 다른 방법에의 처리가 시급한 실정이다.On the other hand, the treatment of the end-processed products of the waste plastics depends only on the above-mentioned landfill or incineration, so the treatment by other methods is urgently needed.
본 발명에 의한 인조골재는 폐플라스틱 종말처리품을 용융시킨 후 이를 선형 커터기로 절단하고 냉각시킴으로써 제조하고 이를 옹벽 뒷채움재, 배수재, 동상방지층 골재, 연약지반 및 교량상판용 골재로 사용하여 폐플라스틱의 재활용과 천연골재 부족 문제를 해결하는 데 기여함을 목적으로 한다.The artificial aggregate according to the present invention is manufactured by melting the waste plastic end treatment product, cutting it with a linear cutter and cooling it, and using it as a retaining wall backfill material, drainage material, frostbite prevention layer aggregate, soft ground, and aggregate for bridge deck. It aims to contribute to solving the problem of recycling and lack of natural aggregate.
도 1은 폐플라스틱 종말처리품의 파쇄시킨 모습을 나타낸 사진이다.1 is a photograph showing the crushed state of the waste plastic end treatment product.
도 2는 선형 커터기를 이용한 인조골재 제조방법을 나타낸 사시도이다.Figure 2 is a perspective view showing a method for manufacturing artificial aggregate using a linear cutter.
도 3은 본 발명의 불규칙형 인조골재를 나타낸 사진이다.Figure 3 is a photograph showing the irregular artificial aggregate of the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
1: 압출기 2: 크기조절노즐1: extruder 2: sizing nozzle
3: 냉수 4: 솔레노이드 밸브3: cold water 4: solenoid valve
5: 선형커터(상향) 5': 선형커터(하향)5: Linear Cutter (Upward) 5 ': Linear Cutter (Downward)
6: 인조골재 7: 용융된 폐플라스틱 종말처리품6: artificial aggregate 7: melted plastic end treatment
8: 피아노선8: piano wire
본 발명의 인조골재 제조에 사용하는 폐플라스틱 종말처리품의 성분은 플라스틱의 사용용도에 따라 다르지만 평균적으로 열경화성 또는 열가소성을 포함하는플라스틱류가 90%, 금속성 성분과 무기질 이물질이 2%, 목재류 및 유기질 이물질이 2%, 포장재속의 내용물 및 먼지 등이 3%, 기타 3% 정도로 분류된다. 한편 도 1은 본 발명에 사용되는 폐플라스틱 종말처리품의 일부분을 보여주는 사진이다.The components of the waste plastic end-treatment products used in the manufacture of the artificial aggregate of the present invention vary depending on the use of the plastic, but on average, 90% of plastics including thermosetting or thermoplastic, 2% of metallic and inorganic foreign substances, wood and organic foreign substances This 2%, the contents and dust in the packaging, 3%, and other 3%. On the other hand Figure 1 is a photograph showing a portion of the waste plastic end treatment product used in the present invention.
본 발명에서 폐플라스틱 종말처리품을 이용하여 제조한 인조골재는 천연골재와 마찬가지로 옹벽 뒷채움재, 배수재, 동상방지층 골재, 연약지반 및 교량상판용 골재로 사용을 할 수 있다.Artificial aggregate manufactured using the waste plastic end treatment product in the present invention can be used as the aggregate for the retaining wall backfill, drainage, frostbite prevention layer aggregate, soft ground and bridge deck as with natural aggregate.
이하 본 발명을 자세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
먼저 폐플라스틱 종말처리품을 컨베이어 벨트로 이동시키면서 1차로 신발류와 같은 큰 이물질과 파쇄기의 감김현상을 유발하는 테이프류를 제거한 후 햄머밀로 파쇄하고 자석 또는 와류선별기를 이용하여 2차로 금속 및 이물질을 선별한 뒤 분쇄기로 폐플라스틱 종말처리품을 20mm∼30mm의 크기로 분쇄한다.First, the waste plastic end-processed products are moved to the conveyor belt to remove large foreign substances such as footwear and tapes that cause the crusher to wind up.Then, they are crushed with a hammer mill and secondly, the metal and foreign substances are sorted using a magnet or vortex separator. After that, the waste plastic end-processed product is pulverized to a size of 20 mm to 30 mm.
분쇄한 폐플라스틱 종말처리품을 150∼270℃의 온도로 압출기(1)에서 반죽상태로 압출용융한 후 압출기(1)에 결합된 크기조절 노즐(2)을 통해 압출기(1) 외부로 내보내고 압출기(1) 외부에 설치된 선형 커터기를 상향(5) 및 하향(5')으로 왕복운동 시켜 용융된 폐플라스틱 종말처리품(7)을 절단한 후 이것을 냉수(3)에서 냉각시킴으로써 본 발명의 인조골재를 제조한다. 한편 상기에서 언급한 선형 커터기는 타이머(timer)에 의해 작동되는 두 개의 솔레노이드 밸브(solenoid valve)(4)(4 ') 사이를 피아노선(8)으로 연결한 것을 이용한다. 본 발명에서 용융된 폐플라스틱 종말처리품(7)을 절단하는 선형 커터기는 상기에서 언급한 솔레노이드 밸브 사이에 피아노선을 연결한 것만 사용하는 것이 아니라 용융된 폐플라스틱 종말처리품을 절단할 수 있는 것이라면 어떠한 것이라도 사용할 수 있다.The extruded melted plastic waste finished product is melted in the state of dough in the extruder (1) at a temperature of 150 to 270 ° C, and then is discharged to the outside of the extruder (1) through a size adjusting nozzle (2) attached to the extruder (1). (1) The artificial aggregate of the present invention by cutting the molten waste plastic end-processed product 7 by reciprocating the linear cutter installed in the outside in an upward (5) and downward (5 ') manner and cooling it in cold water (3). To prepare. On the other hand, the above-mentioned linear cutter uses a piano wire 8 connected between two solenoid valves 4 and 4 'which are operated by a timer. In the present invention, if the linear cutter for cutting the molten waste plastic end product 7 is capable of cutting the molten waste plastic end product, instead of using only the piano wires connected between the above-mentioned solenoid valves. Anything can be used.
상기에서 선형 커터기를 이용한 본 발명의 인조골재 제조방법을 도 2에 간략적으로 나타냈으며 도 2에 나타낸 방법으로 제조된 인조골재 모양은 도 3에 나타내었다.The artificial aggregate manufacturing method of the present invention using the linear cutter machine is briefly shown in FIG. 2, and the shape of the artificial aggregate manufactured by the method shown in FIG. 2 is shown in FIG. 3.
한편 폐플라스틱 종말처리품의 압출용융시 사용하는 압출기(1)는 일축스크류 (single screw) 또는 2축스크류(double screw)형 압출기 어느 것을 사용해도 상관없고 용융온도의 조절을 통해 제조한 인조골재의 외면의 거친상태, 강도를 달리 할 수 있으며 압출기(1)에 결합된 크기조절 노즐(2)의 직경 및 모양에 따라 인조골재의 형상을 조절할 수 있다.On the other hand, the extruder (1) used for extrusion melting of the end-of-process waste plastics may be a single screw or a double screw extruder, and the outer surface of the artificial aggregate manufactured by controlling the melting temperature may be used. The rough state, the strength can be different and the shape of the artificial aggregate can be adjusted according to the diameter and shape of the size control nozzle (2) coupled to the extruder (1).
이하 본 발명을 다음의 실시예에 의하여 설명하고자 한다. 그러나 이들이 본 발명의 기술적 범위를 한정하는 것은 아니다.Hereinafter, the present invention will be described by the following examples. However, these do not limit the technical scope of the present invention.
<실시예><Example>
플라스틱 재활용을 위한 선별과정에서 버려지는 폐플라스틱 종말처리품을 컨베이어 벨트로 이동시키면서 신발류와 같은 큰 이물질과 파쇄기의 감김현상을 유발하는 테이프류를 제거하고 햄머밀형 슈레더(shredder)를 이용하여 파쇄한 후 분쇄기로 20mm∼30mm의 크기로 분쇄하였다.After moving the waste plastic end-processed products discarded in the sorting process for plastic recycling to the conveyor belt, the large foreign substances such as footwear and tapes causing the crushing of the crusher are removed and crushed using a hammer mill shredder. The mill was ground to a size of 20 mm to 30 mm.
분쇄된 폐플라스틱 종말처리품의 형태는 불규칙하며 알루미늄 조각 또는 선별과정에서 미처 선별되지 못한 열경화성 플라스틱이 폐플라스틱 종말처리품의 전체 중량비의 약 10% 이상 함유되어 있었다.The shape of the pulverized waste plastics was irregular and contained about 10% of the total weight ratio of the waste plastics by-products.
분쇄한 폐플라스틱 종말처리품을 150∼270℃의 온도로 압출기(1)에서 반죽상태로 압출용융한 후 압출기(1)에 결합된 크기조절 노즐(2)을 통해 압출기(1) 외부로 내보내고 압출기(1) 외부에 존재하며, 타이머(timer)에 의해 작동되는 솔레노이드 밸브(solenoid valve)(4)(4')에 연결되어 있는 선형 커터기를 상향(5) 및 하향( 5')으로 왕복운동시켜 용융된 폐플라스틱 종말처리품(7)을 절단하고 이것을 냉수(3 )에서 냉각시킴으로써 본 발명의 인조골재를 제조하였다.The extruded melted plastic waste finished product is melted in the state of dough in the extruder (1) at a temperature of 150 to 270 ° C, and then is discharged to the outside of the extruder (1) through a size adjusting nozzle (2) attached to the extruder (1). (1) Reciprocating linear cutters, which are external and connected to solenoid valves 4 and 4 'which are operated by a timer, are reciprocated upwards and downwards. The artificial aggregate of the present invention was prepared by cutting the molten waste plastic finishing product 7 and cooling it in cold water 3.
<시험예 1><Test Example 1>
상기 실시예에서 폐플라스틱 종말처리품을 이용하여 제조한 인조골재를 일반골재의 실험법(KS F2526)을 응용하여 물성을 측정하였으며 그 결과를 아래의 표 1에 나타내었다.In the above embodiment, the artificial aggregate manufactured by using the waste plastic end treatment product was measured by applying the experimental method of general aggregate (KS F2526), and the results are shown in Table 1 below.
표 1. 본 발명의 인조골재 물성 결과Table 1. Results of artificial aggregate physical properties of the present invention
<시험예 2><Test Example 2>
상기 실시예 1에서 제조한 인조골재를 단위용적중량시험 및 다짐시험(KS F23 12), 대형직접전단시험(KS F2343), 투수시험(KS F2322) 및 마모시험(KS F2508)을 하여 그 결과를 아래의 표 2, 표 3, 표 4, 표 5에 각각 나타내었다. 지반공학 전문가에 견해에 의하면 표 2 내지 표 5의 측정결과로부터 본 발명의 인조골재는 배수재 또는 연약지반용 경량골재로써 우수한 물성을 갖는 것으로 평가되었다.The artificial aggregate prepared in Example 1 was subjected to unit volume weight test and compaction test (KS F23 12), large direct shear test (KS F2343), permeability test (KS F2322) and wear test (KS F2508). It is shown in Table 2, Table 3, Table 4, Table 5 below. According to the opinion of the geotechnical expert, the artificial aggregate of the present invention was evaluated to have excellent physical properties as a light aggregate for drainage or soft ground from the measurement results of Tables 2 to 5.
표 2. 인조골재의 단위용적중량시험 및 다짐시험 시험Table 2. Unit bulk weight test and compaction test of artificial aggregate
표 3. 대형직접전단시험(30cm×30cm)Table 3. Large direct shear test (30cm × 30cm)
표 4. 투수시험Table 4. Permeability Test
표 5. 마모시험(LA 마모시험)Table 5. Abrasion Test (LA Abrasion Test)
<시험예 3><Test Example 3>
본 발명의 인조골재를 지하에 매립되었을 경우 침출수의 환경적 특성을 분석하기 위하여 폐기물 공정시험법(폐기물관리법시행규칙 제 2조)에 의한 침출수의 분석을 실시하였으며 그 결과를 아래의 표 6에 나타내었다.In order to analyze the environmental characteristics of the leachate when the artificial aggregate of the present invention is buried underground, the leachate was analyzed by the waste process test method (Article 2 of the Waste Management Act Enforcement Rule) and the results are shown in Table 6 below. It was.
<표 6> 규칙형 인조골재의 침출수 분석<Table 6> Leachate Analysis of Regular Artificial Aggregates
본 발명은 폐플라스틱의 종말처리품을 이용하여 인조골재의 제조에 이용함으로써 폐플라스틱의 종말처리품 자체의 처리문제 뿐만 아니라 폐플라스틱의 재활용을 촉진함과 동시에 각종 공사장에서 천연골재 부족으로 야기되는 어려움의 해결할 수 있다. 그리고 본 발명의 선형 커터기는 용융된 폐플라스틱 종말처리품을 절단할수 있는 것이라면 사용이 가능하기 때문에 특정한 고가의 장비가 필요없으며 압축성형기를 이용하는 압축성형 방법 보다 단위시간당 많은 인조골재를 생산할 수 있다.The present invention is used in the manufacture of artificial aggregate using the end-processed products of waste plastics as well as the disposal of the end-processed products of waste plastics as well as to promote the recycling of waste plastics and at the same time caused by the lack of natural aggregates at various construction sites Can be solved. In addition, since the linear cutter of the present invention can be used as long as it can cut the molten waste plastic end-processed product, it does not need a specific expensive equipment and can produce more artificial aggregate per unit time than the compression molding method using a compression molding machine.
한편 천연골재의 비중이 평균적으로 2가 넘는데 반하여 본 발명품인 인조골재의 비중은 0.71, 단위용적중량은 0.35로 연약지반이나 교량의 상판에 사용시 유리할 뿐만 아니라 운반비 등에 있어서도 유리하다.On the other hand, the specific gravity of natural aggregates is more than 2 on the average, while the specific gravity of artificial aggregates of the present invention is 0.71, and the unit volume weight is 0.35, which is advantageous not only when used in soft ground or on tops of bridges, but also in transportation costs.
또한 본 발명에 의한 인조골재와 천연골재에 대한 열전도도 시험을 직접 시험하지 않았으나 단일재질의 플라스틱을 이용한 유사한 실험을 일본에서 행한 바에 따르면 천연골재에 비해 플라스틱 인조골재가 약 1/18에 불과하였다(일본공업조사회보 '99.4월호). 그 결과 본 발명의 경량 인조골재는 소량으로도 충분히 동상방지 효과를 얻게되는 유리한 면이 있다.In addition, the thermal conductivity test for artificial aggregates and natural aggregates according to the present invention was not directly tested, but similar experiments using a single plastic material were carried out in Japan, and the artificial aggregates were only about 1/18 as compared to natural aggregates. Japanese Industrial Society Report, April, 1999). As a result, the lightweight artificial aggregate of the present invention is advantageous in that a small amount can sufficiently obtain an anti-frostbite effect.
Claims (3)
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| KR1019990064799A KR100332571B1 (en) | 1999-12-29 | 1999-12-29 | Manufacturing of Light Weight Artificial Aggregates by Garbages from Plastic Sorting Plants |
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| KR1019990064799A KR100332571B1 (en) | 1999-12-29 | 1999-12-29 | Manufacturing of Light Weight Artificial Aggregates by Garbages from Plastic Sorting Plants |
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| KR100332571B1 true KR100332571B1 (en) | 2002-04-15 |
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| KR20220136559A (en) | 2021-03-31 | 2022-10-11 | 주식회사 정우콘크리트 | Water-permeable concrete block using waste plastic and porous aggregates and the manufacturing method thereof |
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| KR20220136559A (en) | 2021-03-31 | 2022-10-11 | 주식회사 정우콘크리트 | Water-permeable concrete block using waste plastic and porous aggregates and the manufacturing method thereof |
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