KR101926639B1 - Mixture and producing method of macadam road base by using waste cement concrete and waste asphalt concrete - Google Patents

Mixture and producing method of macadam road base by using waste cement concrete and waste asphalt concrete Download PDF

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KR101926639B1
KR101926639B1 KR1020180034925A KR20180034925A KR101926639B1 KR 101926639 B1 KR101926639 B1 KR 101926639B1 KR 1020180034925 A KR1020180034925 A KR 1020180034925A KR 20180034925 A KR20180034925 A KR 20180034925A KR 101926639 B1 KR101926639 B1 KR 101926639B1
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waste
particle size
aggregate
mixture
fine aggregate
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Korean (ko)
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민원
황인동
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민원
황인동
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/05Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04Supplying or proportioning the ingredients
    • B28C7/0481Plant for proportioning, supplying or batching
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/16Waste materials; Refuse from building or ceramic industry
    • C04B18/167Recycled materials, i.e. waste materials reused in the production of the same materials
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1004Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Architecture (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention relates to a method for producing a mixture for a particle size regulator layer by using waste concrete and waste asphalt concrete and a mixture for a particle size regulator layer produced by the method. An object of the present invention is to provide a method for producing a mixture for a particle size regulator layer by using waste concrete and waste asphalt concrete and a mixture for a particle size regulator layer produced by the method by which a high-quality mixture for a particle size regulator layer can be produced by means of waste concrete and waste asphalt concrete. The method includes a step (S10) of producing coarse aggregate with a particle size range of 10 mm to 50 mm through multi-stage crushing and sorting of waste concrete; a step (S20) of producing fine aggregate with a particle size of 13 mm or less through multi-stage crushing and sorting of waste asphalt concrete; and a step (S30) of mixing the coarse aggregate produced in the S10 step with the fine aggregate produced in the S20 step, during which the mixing ratio of the coarse aggregate and the fine aggregate is adjusted through speed adjustment on a first belt feeder transporting the coarse aggregate and a second belt feeder transporting the fine aggregate.

Description

폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법 및 이로써 생산된 입도조정기층용 혼합물{Mixture and producing method of macadam road base by using waste cement concrete and waste asphalt concrete}Description: TECHNICAL FIELD The present invention relates to a method for producing a mixture for a particle size regulator layer using waste concrete and waste asbestos, and a mixture for producing the same,

본 발명은 입도조정기층용 혼합물 생산방법 및 이로써 생산된 입도조정기층용 혼합물에 관한 것으로, 더욱 상세하게는 폐콘크리트를 이용하여 굵은 골재를 생산하고, 폐아스콘을 이용하여 잔골재를 생산한 뒤, 이 두 골재를 혼합하여 입도조정기층용 혼합물을 생산하는 입도조정기층용 혼합물 생산방법 및 이로써 생산된 입도조정기층용 혼합물에 관한 것이다.The present invention relates to a method for producing a mixture for a particle size regulator layer and a mixture for the particle size regulator layer produced thereby. More particularly, the present invention relates to a method for producing a coarse aggregate by using waste concrete and producing a fine aggregate using waste asbestos, To produce a mixture for a particle size regulator layer, and to a mixture for a particle size regulator layer thus produced.

일반적으로 기층은 도로포장에서 표층 하부에 구성되는 층으로써, 표층과 함께 교통하중을 지지하는 중요한 역할을 한다.Generally, the base layer is a layer formed on the lower part of the surface layer in the road pavement, and plays an important role in supporting the traffic load together with the surface layer.

이러한 기층은 입도조정기층, 시멘트 안정처리기층, 석회 안정처리기층, 아스팔트 안정처리기층으로 구분될 수 있다.These base layers can be classified into a particle size regulator layer, a cement stabilizer layer, a lime stabilizer layer, and an asphalt stabilizer layer.

상기 입도조정기층은 한 종류의 골재로 구성하여 이의 이물림(Interlocking) 효과를 높인 입도조정 쇄석을 이용하여 구성되는 기층이고, 상기 시멘트 안정처리기층과 석회 안정처리기층 및 아스팔트 안정처리기층은 현지에서 발생하는 재료를 시멘트 또는 석회 또는 아스팔트로 안정처리한 재료를 포설하고 다짐하여 시공한 기층이다.The cement stabilizer layer, the lime stabilizer layer, and the asphalt stabilizer layer are formed on the ground in a local area. It is a base layer which is made by applying a stabilized material made of cement, lime or asphalt to the material to be generated and compaction.

우리나라의 경우, 아스팔트 포장에서는 입도조정기층과 아스팔트 안정처리 기층이 주로 적용되고, 콘크리트포장에서는 시멘트 안정처리기층(빈배합 콘크리트 기층)이 적용되고 있다.In Korea, asphalt pavement layer and asphalt stabilizer layer are mainly applied in asphalt pavement and cement stabilizer layer (vacant concrete concrete base layer) is applied in concrete pavement.

한편, 우리나라의 순환골재 품질기준(국토교통부, 2017)에서는 건설폐기물인 폐콘크리트를 파쇄 및 처리하여 생산되는 순환골재가 품질기준을 만족할 경우, 입도조정기층에 사용할 수 있도록 규정하고 있다.On the other hand, Korea's recycled aggregate quality standard (Ministry of Land Transport and Maritime Affairs, 2017) stipulates that recycled aggregate produced by crushing and treating waste concrete, which is a construction waste,

그러나, 폐콘크리트를 이용하여 생산된 순환골재로는 입도조정기층의 요구성능과 품질을 확보하기 어렵다. 따라서 폐콘크리트를 이용하여 생산된 순환골재는 입도조정기층용으로 사용하지 못하고 보조기층용으로만 사용되고 있어 건설폐기물의 재활용의 효율성과 경제성이 저하되는 문제점이 있다.However, it is difficult to obtain the required performance and quality of the particle size regulator layer as recycled aggregate produced using waste concrete. Therefore, the recycled aggregate produced using the waste concrete can not be used for the particle size regulator layer, but is used only for the auxiliary layer, thus reducing the efficiency and economical efficiency of recycling construction waste.

즉, 폐콘크리트를 이용하여 기층용 순환골재를 생산함에 있어서, 폐콘크리트의 다단계 파쇄와 선별을 통해 입도범위가 10㎜ ~ 50㎜인 굵은골재와, 13㎜ 이하인 석분을 생산하고, 이 두 종류의 재료를 혼합하여 규정된 입도를 맞추어야 원하는 이물림 효과를 가져와 기층의 역할을 할 수 있다.That is, in producing the recycled aggregate for the base layer by using the waste concrete, the coarse aggregate having a particle size range of 10 mm to 50 mm and the aggregate having a particle size of 13 mm or less are produced through multistage crushing and sorting of waste concrete, By mixing the materials and adjusting the specified particle size, the desired bite effect can be obtained and serve as a base layer.

그러나 이들의 두 종류의 입도를 갖는 순환골재를 입도 합성하여 기층용 재료를 생산할 경우, 13㎜ 이하인 석분에 포함된 과다한 시멘트 페이스트와 둥근 입형 그리고 쉽게 깨지는 입자간의 강도 특성으로 인하여 입도조정기층으로서 요구되는 이물림 효과를 기대하기 어렵고, 품질기준에서 규정된 수정CBR, 마모감량, 특히 안정성의 기준을 맞출 수 없어 순환골재를 입도조정기층용으로는 사용하지 못하고 있다.However, when the material for the base layer is produced by synthesizing the particles of the two kinds of recycled aggregates having the different particle sizes, it is necessary to use the granules as the particle size regulator layer due to the strength characteristics between the excessive cement paste, It is difficult to expect the bite effect, and the criteria of the modified CBR, wear loss, and particularly stability specified in the quality standard can not be met, so that the recycled aggregate can not be used for the particle size regulator layer.

등록특허공보 제10-1823402호(2018.01.31.공고)Registered Patent Publication No. 10-1823402 (issued on January 31, 2018)

본 발명은 상기와 같은 문제점을 고려하여 이루어진 것으로, 본 발명의 목적은 폐콘크리트와 폐아스콘을 이용하여 양질의 입도조정기층용 혼합물을 생산할 수 있도록 한 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법 및 이로써 생산된 입도조정기층용 혼합물을 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method for producing a mixture for a particle size regulator layer using waste concrete and waste ascon so as to produce a mixture for a quality regulator layer using waste concrete and waste ascon And to provide a mixture for the particle size regulator layer produced thereby.

상기한 바와 같은 목적을 달성하고 종래의 결점을 제거하기 위한 과제를 수행하는 본 발명은 폐콘크리트의 다단계 파쇄와 선별을 통해 입도범위가 10㎜~50㎜인 굵은골재를 생산하는 단계(S10); 폐아스콘의 다단계 파쇄와 선별을 통해 입도가 13㎜ 이하인 잔골재를 생산하는 단계(S20); 및 상기 S10 단계를 통해 생산된 굵은골재와 상기 S20 단계를 통해 생산된 잔골재를 혼합하되, 상기 굵은골재를 운반하는 제1벨트피더와, 상기 잔골재를 운반하는 제2벨트피더의 속도조절을 통해 굵은골재와 잔골재의 혼합비를 조절하는 단계(S30);로 이루어지되, 상기 S20 단계는 폐아스콘의 다단계 파쇄 과정 중, 최종단계 크러셔로 투입되는 폐아스콘에 분쇄조제를 혼합하는 단계(S21);를 포함하고, 상기 S21 단계는 수산기가 1개인 지방산 에스터 또는, 수산기가 2개인 글리콜 0.01~40중량%와 수산기가 1개인 지방산 에스터 60~99.99중량%가 혼합된 것으로 이루어진 고급알코올계 분쇄조제를 폐아스콘 100 중량부에 대하여 0.001 내지 0.1 중량부로 분무(spray)하여 혼합하는 것으로 이루어진 것을 특징으로 하는 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법을 제공한다.According to an aspect of the present invention, there is provided a method of producing a coarse aggregate having a particle size of 10 mm to 50 mm by multi-stage crushing and sorting waste concrete (S10); (S20) of producing a fine aggregate having a particle size of 13 mm or less through multistage crushing and sorting of waste asbestos; And a first belt feeder for conveying the coarse aggregate and a second belt feeder for conveying the fine aggregate to mix the coarse aggregate produced through the step S10 and the fine aggregate produced through the step S20, (S30) of adjusting the mixing ratio of the aggregate and the fine aggregate. In the step S20, mixing the pulverizing additive into the pulverized ascon in the final stage crusher during the multi-stage pulverization process of the pulverized ascon In step S21, a high-alcohol-based pulverizing auxiliary consisting of 0.01 to 40% by weight of a fatty acid ester having one hydroxyl group or two hydroxyl groups and 60 to 99.99% by weight of a fatty acid ester having one hydroxyl group, And 0.001 to 0.1 part by weight based on 100 parts by weight of the total weight of the mixture. Provide a production method.

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또한 본 발명은 폐콘크리트의 다단계 파쇄와 선별을 통해 입도범위가 10㎜~50㎜인 굵은골재를 생산하는 단계(S10); 폐아스콘의 다단계 파쇄와 선별을 통해 입도가 13㎜ 이하인 잔골재를 생산하는 단계(S20); 및 상기 S10 단계를 통해 생산된 굵은골재와 상기 S20 단계를 통해 생산된 잔골재를 혼합하되, 상기 굵은골재를 운반하는 제1벨트피더와, 상기 잔골재를 운반하는 제2벨트피더의 속도조절을 통해 굵은골재와 잔골재의 혼합비를 조절하는 단계(S30);로 이루어지되, 상기 S20 단계는 폐아스콘의 다단계 파쇄 과정 중, 최종단계 크러셔로 투입되는 폐아스콘에 분쇄조제를 혼합하는 단계(S21);를 포함하고, 상기 S21 단계는 수산기가 1개인 지방산 에스터 또는, 수산기가 2개인 글리콜 0.01~40중량%와 수산기가 1개인 지방산 에스터 60~99.99중량%가 혼합된 것으로 이루어진 고급알코올계 분쇄조제를 폐아스콘 100 중량부에 대하여 0.001 내지 0.1 중량부로 분무(spray)하여 혼합하는 것으로 이루어진 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법에 따라 생산되는 폐콘크리트로 이루어진 굵은골재와 폐아스콘으로 이루어진 잔골재를 혼합한 것으로 이루어진 것을 특징으로 하는 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물을 제공한다.The present invention also relates to a method of producing a coarse aggregate having a particle size ranging from 10 mm to 50 mm (S10) through multistage crushing and sorting of waste concrete; (S20) of producing a fine aggregate having a particle size of 13 mm or less through multistage crushing and sorting of waste asbestos; And a first belt feeder for conveying the coarse aggregate and a second belt feeder for conveying the fine aggregate to mix the coarse aggregate produced through the step S10 and the fine aggregate produced through the step S20, (S30) of adjusting the mixing ratio of the aggregate and the fine aggregate. In the step S20, mixing the pulverizing additive into the pulverized ascon in the final stage crusher during the multi-stage pulverization process of the pulverized ascon In step S21, a high-alcohol-based pulverizing auxiliary consisting of 0.01 to 40% by weight of a fatty acid ester having one hydroxyl group or two hydroxyl groups and 60 to 99.99% by weight of a fatty acid ester having one hydroxyl group, By weight, based on the weight of the waste concrete, and 0.001 to 0.1 part by weight based on the weight of the waste concrete. And a fine aggregate composed of waste concrete and a fine aggregate composed of waste asbestos are mixed together to provide a mixture for a particle size regulator layer using waste concrete and waste asbestos.

상기와 같은 특징을 갖는 본 발명에 의하면, 폐콘크리트와 폐아스콘을 이용하여 양질의 입도조정기층용 혼합물을 생산할 수 있게 되므로, 폐콘크리트와 폐아스콘의 재활용 효율성과 경제성을 향상시킬 수 있는 효과가 있다.According to the present invention having such characteristics as described above, it is possible to produce a mixture for a granularity regulator layer of good quality by using waste concrete and waste ascon, thereby improving the efficiency and economy of recycling waste concrete and waste ascon.

도 1 은 본 발명의 바람직한 실시예에 따른 입도조정기층용 혼합물 생산방법의 순서도.1 is a flowchart of a method for producing a mixture for a particle size regulator layer according to a preferred embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부된 도면과 연계하여 상세히 설명하면 다음과 같다. 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명은 생략한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

도 1은 본 발명의 바람직한 실시예에 따른 입도조정기층용 혼합물 생산방법의 순서도를 도시하고 있다.FIG. 1 shows a flowchart of a method for producing a mixture for a particle size regulator layer according to a preferred embodiment of the present invention.

본 발명에 따른 입도조정기층용 혼합물 생산방법은 폐콘크리트의 다단계 파쇄와 선별을 통해 입도범위가 10㎜~50㎜인 굵은골재를 생산하는 단계(S10); 폐아스콘의 다단계 파쇄와 선별을 통해 입도가 13㎜ 이하인 잔골재를 생산하는 단계(S20); 및 상기 S10 단계를 통해 생산된 굵은골재와 상기 S20 단계를 통해 생산된 잔골재를 혼합하는 단계(S30);로 이루어진다.The method for producing a mixture for a granulation agent layer according to the present invention comprises: (S10) producing a coarse aggregate having a particle size range of 10 mm to 50 mm through multistage crushing and sorting of waste concrete; (S20) of producing a fine aggregate having a particle size of 13 mm or less through multistage crushing and sorting of waste asbestos; And mixing the coarse aggregate produced in the step S10 with the fine aggregate produced in the step S20 (S30).

상기 S10 단계는 조크러셔(11), 더블조크러셔(12), 콘크러셔(13)를 이용하여 폐콘크리트를 단계적으로 파쇄하고 선별하되, 최종적으로 입도범위가 10㎜~50㎜인 순환골재를 선별하여 굵은골재로서 생산하는 것으로 이루어지게 된다.In the step S10, the waste concrete is crushed and sorted by using the jaw crusher 11, the double jaw crusher 12 and the cone crusher 13, and finally, the circulating aggregate having a particle size range of 10 mm to 50 mm is sorted Thereby producing a coarse aggregate.

이처럼 폐콘크리트를 이용하여 굵은골재를 생산하는 S10 단계는 일반적으로 널리 실시되고 있는 폐콘크리트를 이용한 순환골재 생산방법과 동일한 방식으로 굵은골재의 입도범위를 만족하는 순환골재를 생산할 수 있으므로, S10 단계에 대한 보다 구체적인 설명은 생략하도록 한다.Since the step S10 of producing coarse aggregate using waste concrete can produce the recycled aggregate satisfying the particle size range of the coarse aggregate in the same manner as the generally used method of producing recycled aggregate using waste concrete, A more detailed description will be omitted.

상기 S20 단계는 조크러셔(21)와 롤크러셔(22)를 이용하여 폐아스콘을 단계적으로 파쇄하고 선별하되, 최종적으로 입도가 13㎜ 이하인 순환골재를 선별하여 잔골재로서 생산하는 것으로 이루어지게 된다. 이때, 본 설명에서는 조크러셔와 롤크러셔를 예시하였으나 다양한 종류의 파쇄장치를 이용하여 폐아스콘을 파쇄하여 잔골재를 생산할 수 있다.In the step S20, the waste asbestos is crushed and sorted using the jaw crusher 21 and the roll crusher 22, and finally the recycled aggregate having a particle size of 13 mm or less is selected to be produced as fine aggregate. In this case, although the jaw crusher and the roll crusher are exemplified in this description, the waste asbestos can be crushed to produce fine aggregate by using various crushing devices.

한편, 폐아스콘의 파쇄와 선별을 통해 생산되는 순환골재의 경우, 아스팔트 시멘트의 점착력으로 인해 아스팔트 시멘트와 잔골재 및 석분이 혼합된 아스팔트 모르타르 또는 상기 아스팔트 모르타르와 굵은골재가 서로 붙은 아스팔트 콘크리트 형태로 생산되며, 이러한 폐아스콘 순환골재는 그 형태로 인해 굵은골재의 사이로 효과적으로 침투하기 어려운 단점이 있다.On the other hand, in the case of the recycled aggregate produced by crushing and screening of waste asphalt, asphalt mortar mixed with asphalt cement, fine aggregate and fine stone or the above-mentioned asphalt mortar and coarse aggregate are produced in the form of asphalt concrete due to adhesion of asphalt cement , And such waste asbestos recycled aggregate has a disadvantage that it is difficult to effectively penetrate the coarse aggregate due to its shape.

이에 본 발명은 폐아스콘 순환골재를 구성하는 석분과 잔골재 및 굵은골재를 효과적으로 분쇄하여 생산할 수 있도록 하는 단계(S21)를 더 포함한다.Accordingly, the present invention further includes a step (S21) of effectively pulverizing and producing the abrasive, the fine aggregate and the coarse aggregate constituting the waste asbestos recycle aggregate.

한편, 상기 S21 단계는 조크러셔(21)에 의해 파쇄된 후, 최종단계 크러셔인 롤크러셔(22)로 투입되는 폐아스콘에 분쇄조제를 혼합하는 것으로 이루어진다.Meanwhile, the step S21 is performed by mixing the crushing aid into the crushed asphalt which is crushed by the crusher 21 and then supplied to the roll crusher 22 as the final crusher.

상기 분쇄조제로는 고급알코올계 분쇄조제가 사용되며, 이의 혼합비율은 폐아스콘 100 중량부에 대하여 0.001 내지 0.1 중량부가 혼합되며, 바람직하게는 최종단계의 크러셔로 투입되는 폐아스콘에 고급알코올계 분쇄조제를 분무(spray)하는 방식으로 혼합하게 된다.The high-alcohol-based pulverizing aid is used as the pulverizing aid, and the blending ratio thereof is 0.001 to 0.1 part by weight based on 100 parts by weight of the pulverized ascon. Preferably, the pulverized ascon- The formulation is mixed in a spray manner.

한편, 상기 고급알코올계 분쇄조제의 혼합비율이 0.001 중량부 보다 낮은 경우 그 효과가 미미하며, 0.1 중량부 보다 클 경우 과도한 미끌림이 작용하여 외력이 쉽게 흐트러지거나 물에 쉽게 젖음으로써 동결융해에 의한 피해가 발생할 수 있다.On the other hand, when the blending ratio of the high-alcohol-based pulverizing auxiliary is lower than 0.001 part by weight, the effect thereof is insignificant. When the blending ratio is higher than 0.1 part by weight, excessive slippage acts to easily disturb the external force, May occur.

이와 같이 폐아스콘에 혼합되는 분쇄조제는 폐아스콘의 분쇄효율을 높여 분쇄 시 요구되는 에너지를 적게 하고, 분쇄가 원활하게 이루어지도록 하며, 특히 굵은골재, 잔골재, 석분 및 아스팔트 시멘트의 입자별 분쇄를 유도하여 입도조정이 가능하게 하고, 표면장력을 감소시켜 다짐작업 시 잔골재가 쉽게 미끄러지면서 굵은골재의 사이사이에 용이하게 충전되게 하는 작용을 함으로써, 입도조정기층의 밀도와 수밀성을 향상시키고 인터록킹에 의한 맞물림을 향상시키게 된다.As described above, the pulverizing assistant to be mixed with the pulverized asbestos enhances the pulverization efficiency of the pulverized ascon, thereby reducing the energy required for pulverization and facilitating the pulverization. Particularly, pulverization of coarse aggregate, fine aggregate, And the surface tension is reduced to easily fill the gap between the coarse aggregates while the fine aggregate material slips easily during compaction, thereby improving the density and watertightness of the particle size regulator layer and improving interlocking Thereby improving the engagement.

이처럼 폐아스콘의 효과적인 분쇄를 유도하기 위하여 사용되는 고급알코올계 분쇄조제로는 수산기가 1개인 팔미트산 에스터 등의 지방산 에스터와 수산기가 2개인 에틸렌 글리콜 등의 글리콜류를 사용할 수 있으며, 상기 지방산 에스터를 단독으로 사용하거나, 지방산 에스터와 글리콜을 혼합하여 사용할 수 있다. 특히 상기 지방산 에스터의 경우 완전 포화된 지방산 에스터를 사용함으로써 내수성을 향상시킬 수 있다.Examples of the high-alcohol-based pulverizing auxiliary used to induce effective pulverization of pulverized asbestos may include glycols such as fatty acid esters such as palmitic esters having one hydroxyl group and ethylene glycol having two hydroxyl groups. May be used alone, or a mixture of a fatty acid ester and glycol may be used. In particular, in the case of the fatty acid ester, the water-solubility can be improved by using a fully saturated fatty acid ester.

한편, 지방산 에스터와 글리콜 혼합물로 고급알코올계 분쇄조제를 구성함에 있어서, 글리콜 40중량% 이하가 첨가된 지방산 에스터와 글리콜 혼합물 즉, 60~99.99중량%의 지방산 에스터와 0.01~40중량%의 글리콜을 혼합하여 고급알코올계 분쇄조제를 구성하게 된다.On the other hand, in the case of constituting a high-alcohol-based pulverizing aid with a mixture of a fatty acid ester and a glycol, a mixture of a fatty acid ester and a glycol mixture containing not more than 40% by weight of glycol, that is, 60 to 99.99% by weight fatty acid ester and 0.01 to 40% To form a high-alcohol-based pulverizing auxiliary.

상기 S30 단계는 폐콘크리트를 이용하여 생산되는 굵은골재와 폐아스콘을 이용하여 생산되는 혼합하여 입도조정기층용 혼합물을 최종적으로 생산하는 공정으로, 폐콘크리트의 다단계 파쇄와 선별을 거쳐 최종적으로 생산되는 굵은골재를 운반하는 제1벨트피더(31)와, 폐아스콘의 다단계 파쇄와 선별을 거쳐 최종적으로 생산되는 잔골재를 운반하는 제2벨트피더(32)의 속도 조정을 통해 굵은골재와 잔골재의 혼합비를 결정될 수 있다.The step S30 is a process for finally producing a mixture for a particle size regulator layer produced by using coarse aggregate produced by using waste concrete and waste asbestos. The process of finely dividing and sorting waste concrete to produce a coarse aggregate The mixing ratio of the coarse aggregate and the fine aggregate can be determined through the speed adjustment of the first belt feeder 31 for conveying the fine aggregate and the second belt feeder 32 for conveying the fine aggregate finally produced through the multistage crushing and sorting of the waste as- have.

한편, 본 발명의 바람직한 실시예에 따르면, 42~48중량%의 굵은골재와 52~58중량%의 잔골재를 혼합하여 입도조정기층용 혼합물을 구성하게 되며, 이러한 혼합비에서 입도조정기층용 혼합물로서 요구되는 이물림 효과와 마모성능 및 내구성을 구현할 수 있게 된다.According to a preferred embodiment of the present invention, 42 to 48% by weight of coarse aggregate and 52 to 58% by weight of fine aggregate are mixed to constitute a mixture for a particle size regulator layer. In this mixing ratio, It is possible to realize the bite effect, the wear performance and the durability.

이하에서 상기와 같은 본 발명에 따른 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법에 의해 생산된 입도조정기층용 혼합물(이하 'Case1'이라 함), 폐콘크리트를 이용하여 생산된 10㎜~50㎜의 굵은골재와 13㎜ 이하의 석분으로 이루어진 입도조정기층용 혼합물(이하 'Case2'라 함), 폐콘크리트와 폐아스콘을 이용하되 분쇄조제를 사용하지 않은 폐아스콘을 이용한 입도조정기층용 혼합물(이하 'Case3'이라 함)의 비교실험을 통해 각 Case별 순환골재의 입도 합성결과와 품질실험결과를 비교한 결과에 대해 설명하도록 한다.Hereinafter, a mixture (hereinafter referred to as 'Case 1') produced by the method of producing a mixture for a particle size regulator using waste concrete and waste ascon in accordance with the present invention as described above (hereinafter referred to as 'Case 1'), (Hereinafter referred to as "Case 2") composed of coarse aggregates of ㎜ in thickness and of less than 13 mm in diameter, a mixture (hereinafter referred to as "Case 2") of waste concrete and waste ascone using pulverized asbestos, Case 3 '), the result of the particle size synthesis and the quality test result of each case is described.

한편, 상기 Case1의 경우, 폐아스콘의 파쇄 시, 수산기가 1개인 팔미트산 에스터 지방산 에스터와 수산기가 2개인 에틸렌 글리콜을 각각 50중량% 혼합한 것으로 이루어진 고급알코올계 분쇄조제를 사용하였다.On the other hand, in case of Case 1, a high-alcohol-based pulverizing aid consisting of 50% by weight of a palmitic acid ester fatty acid ester having one hydroxyl group and two ethylene glycol having two hydroxyl groups at the time of pulverization of waste asbestos was used.

또한, 상기 고급알코올계 분쇄조제는 폐아스콘의 100중량부에 대해 0.05중량부가 혼합되며, 폐아스콘의 최종단계 크러셔인 롤크러셔의 투입 컨베이어에서 분무하는 방식으로 폐아스콘에 혼합되었다.In addition, the high-alcohol-based pulverizing auxiliary was mixed with 0.05 part by weight of the pulverized asbestos in an amount of 0.05 part by weight based on 100 parts by weight of the pulverized asbestos.

아래의 표1은 입도조정기층재료의 표준입도 기준을 나타낸 표이다.Table 1 below is a table showing standard granularity standards of the granularity regulator layer material.

[표1] 입도조정기층용 혼합물의 입도[Table 1] Particle size of the mixture for the particle size regulator layer

Figure 112018030210515-pat00001
Figure 112018030210515-pat00001

한편, 입도조절을 위한 목표 입도는 표1의 RB2(최대입경 40㎜)를 기준으로 하였다.On the other hand, the target particle size for controlling the particle size was based on RB2 (maximum particle diameter: 40 mm) shown in Table 1.

입도합성은 각 Case에 의해 생산된 순환골재의 입도를 시험하고 이들 두 종류(굵은골재와 잔골재)의 입도를 표1의 중앙 입도범위에 최대한 근접시키도록 입도를 합성하고 이들 두 종류의 합성비를 비교하였으며 이의 결과는 표2와 같다.Particle size synthesis was carried out by examining the particle size of the recycled aggregate produced by each case and synthesizing the particle size so that the particle sizes of the two types (coarse aggregate and fine aggregate) are as close as possible to the central particle size range of Table 1, The results are shown in Table 2.

[표2][Table 2]

Figure 112018030210515-pat00002
Figure 112018030210515-pat00002

분쇄조제를 사용한 Case3의 경우, Case1 및 Case2 보다 잔골재 합성비가 높다. 이를 통해 분쇄조제를 사용할 경우, 폐아스콘의 굵은골재, 잔골재, 석분 및 폐아스팔트 시멘트를 입자별로 분쇄할 수 있으며, 합성 후의 입도를 양호하게 개선하여 이물림 효과를 높일 수 있음 알 수 있다.In the case of Case 3 using pulverizing additive, the composite ratio of fine aggregate is higher than that of Case 1 and Case 2. It can be seen that when using the pulverizing aid, the coarse aggregate, the fine aggregate, the fine aggregate, the ash and the waste asphalt cement of the pulverized asbestos can be pulverized by the particle, and the particle size after the synthesis can be improved favorably.

품질은 각 Case별 합성비의 차이에 따른 효과를 고려하지 않고 동일한 조건에서의 비교를 위해 세 Case 모두에서 굵은골재와 잔골재의 합성비를 50:50로 하여 수정 CBR, 마모감량, 안정성 시험을 실시하고 성과를 비교하였으며, 그 결과는 표3과 같다.For quality comparison, CBR, abrasion loss, and stability test were carried out at 50:50 ratio of coarse aggregate and fine aggregate in all three cases for comparison under the same conditions without considering the effect of difference in synthesis ratio of each case. The results are shown in Table 3.

[표3][Table 3]

Figure 112018030210515-pat00003
Figure 112018030210515-pat00003

Case1의 경우 수정 CBR과 안정성에서 모두 불합격하므로 이물림 효과와 내구성이 낮아 입도조정기층에 부적합한 것으로 나타났고, Case2의 경우 Case1 보다 개선된 성과를 나타냈으나 수정 CBR에서 불합격하여 이물림 효과가 낮아 입도조정기층에 부적합한 것으로 나타났다.In Case 1, both the modified CBR and the stability were unsatisfactory. Therefore, the bite effect and durability were not suitable for the particle size regulator layer. In Case 2, the improved performance was shown in Case 1, but in the modified CBR, Lt; RTI ID = 0.0 > layer. ≪ / RTI >

한편, 분쇄조제를 이용하여 미립분의 분쇄효율을 향상시킨 Case3의 경우 모든 항목에서 합격한 것으로 나타났으며, 이를 통해 이물림 효과와 마모성능 및 내구성을 모두 만족하는 양질의 입도조정기층용 혼합물을 제공할 수 있음을 알 수 있다.On the other hand, Case 3, which improved the pulverization efficiency of the fine powders by using the pulverizing aid, showed that it passed all the items, thereby providing a good quality granulator layer mixture satisfying both the bite effect, wear performance and durability It can be seen that

이상에서 설명된 바와 같은 본 발명에 따른 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법 및 이로써 생산된 입도조정기층용 혼합물은 입도조정기층용으로 요구되는 모든 품질규정을 만족하는 양질의 순환골재의 생산이 가능하게 함으로써, 건설폐기물의 재활용의 효율성과 경제성을 향상시킬 수 있게 된다.As described above, the method for producing a mixture for a particle size regulator layer using waste concrete and waste ascon in accordance with the present invention and the mixture for a particle size regulator layer produced by the method of the present invention can produce a high quality recycled aggregate satisfying all the quality requirements required for the particle size regulator layer It is possible to improve the efficiency and economical efficiency of recycling construction waste.

본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

<도면의 주요 부분에 대한 부호의 설명>
11: 조크러셔 12: 더블조크러셔
13: 콘크러셔 21: 조크러셔
22: 롤크러셔 31: 제1벨트피더
32: 제2벨트피더
Description of the Related Art
11: Joe Crusher 12: Double Joe Crusher
13: cone crusher 21: jaw crusher
22: Roll crusher 31: First belt feeder
32: second belt feeder

Claims (4)

폐콘크리트의 다단계 파쇄와 선별을 통해 입도범위가 10㎜~50㎜인 굵은골재를 생산하는 단계(S10);
폐아스콘의 다단계 파쇄와 선별을 통해 입도가 13㎜ 이하인 잔골재를 생산하는 단계(S20); 및
상기 S10 단계를 통해 생산된 굵은골재와 상기 S20 단계를 통해 생산된 잔골재를 혼합하되, 상기 굵은골재를 운반하는 제1벨트피더와, 상기 잔골재를 운반하는 제2벨트피더의 속도조절을 통해 굵은골재와 잔골재의 혼합비를 조절하는 단계(S30);로 이루어지되,
상기 S20 단계는 폐아스콘의 다단계 파쇄 과정 중, 최종단계 크러셔로 투입되는 폐아스콘에 분쇄조제를 혼합하는 단계(S21);를 포함하고,
상기 S21 단계는 수산기가 1개인 지방산 에스터 또는, 수산기가 2개인 글리콜 0.01~40중량%와 수산기가 1개인 지방산 에스터 60~99.99중량%가 혼합된 것으로 이루어진 고급알코올계 분쇄조제를 폐아스콘 100 중량부에 대하여 0.001 내지 0.1 중량부로 분무(spray)하여 혼합하는 것으로 이루어진 것을 특징으로 하는 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법.
(S10) of producing coarse aggregate having a particle size range of 10 mm to 50 mm through multistage crushing and sorting of waste concrete;
(S20) of producing a fine aggregate having a particle size of 13 mm or less through multistage crushing and sorting of waste asbestos; And
A first belt feeder for conveying the coarse aggregate and a second belt feeder for conveying the fine aggregate to mix the coarse aggregate produced through the step S10 and the fine aggregate produced through the step S20, And adjusting the mixing ratio of the fine aggregate (S30)
(S21) mixing the pulverizing additive to the pulverized ascon in the final stage crusher during the multistage pulverizing process of the pulverized ascon,
In the step S21, a high-alcohol-based pulverizing auxiliary comprising 0.01 to 40% by weight of a fatty acid ester having one hydroxyl group or two hydroxyl groups and 60 to 99.99% by weight of a fatty acid ester having one hydroxyl group is mixed with 100 parts by weight And 0.001 to 0.1 part by weight based on 100 parts by weight of the waste concrete.
삭제delete 삭제delete 폐콘크리트의 다단계 파쇄와 선별을 통해 입도범위가 10㎜~50㎜인 굵은골재를 생산하는 단계(S10);
폐아스콘의 다단계 파쇄와 선별을 통해 입도가 13㎜ 이하인 잔골재를 생산하는 단계(S20); 및
상기 S10 단계를 통해 생산된 굵은골재와 상기 S20 단계를 통해 생산된 잔골재를 혼합하되, 상기 굵은골재를 운반하는 제1벨트피더와, 상기 잔골재를 운반하는 제2벨트피더의 속도조절을 통해 굵은골재와 잔골재의 혼합비를 조절하는 단계(S30);로 이루어지되,
상기 S20 단계는 폐아스콘의 다단계 파쇄 과정 중, 최종단계 크러셔로 투입되는 폐아스콘에 분쇄조제를 혼합하는 단계(S21);를 포함하고,
상기 S21 단계는 수산기가 1개인 지방산 에스터 또는, 수산기가 2개인 글리콜 0.01~40중량%와 수산기가 1개인 지방산 에스터 60~99.99중량%가 혼합된 것으로 이루어진 고급알코올계 분쇄조제를 폐아스콘 100 중량부에 대하여 0.001 내지 0.1 중량부로 분무(spray)하여 혼합하는 것으로 이루어진 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물 생산방법에 따라 생산되는 폐콘크리트로 이루어진 굵은골재와 폐아스콘으로 이루어진 잔골재를 혼합한 것으로 이루어진 것을 특징으로 하는 폐콘크리트와 폐아스콘을 이용한 입도조정기층용 혼합물.
(S10) of producing coarse aggregate having a particle size range of 10 mm to 50 mm through multistage crushing and sorting of waste concrete;
(S20) of producing a fine aggregate having a particle size of 13 mm or less through multistage crushing and sorting of waste asbestos; And
A first belt feeder for conveying the coarse aggregate and a second belt feeder for conveying the fine aggregate to mix the coarse aggregate produced through the step S10 and the fine aggregate produced through the step S20, And adjusting the mixing ratio of the fine aggregate (S30)
(S21) mixing the pulverizing additive to the pulverized ascon in the final stage crusher during the multistage pulverizing process of the pulverized ascon,
In the step S21, a high-alcohol-based pulverizing auxiliary comprising 0.01 to 40% by weight of a fatty acid ester having one hydroxyl group or two hydroxyl groups and 60 to 99.99% by weight of a fatty acid ester having one hydroxyl group is mixed with 100 parts by weight Of waste concrete mixed with fine aggregate composed of waste concrete produced from waste concrete produced according to the method of producing a mixture for a particle size regulator layer using waste concrete and waste ascon, wherein the waste concrete is mixed with 0.001 to 0.1 part by weight And a mixture of waste concrete and waste ascon.
KR1020180034925A 2018-03-27 2018-03-27 Mixture and producing method of macadam road base by using waste cement concrete and waste asphalt concrete KR101926639B1 (en)

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KR102503785B1 (en) * 2022-07-28 2023-02-28 (주)한동알앤씨 Manufacturing method of composite recycled aggregate using waste asphalt and composite recycled aggregate made by the manufacturing method
KR102625698B1 (en) 2023-07-20 2024-01-16 주식회사 구성기업 Aggregate gradation adjustment system through crusher input amount control and aggregate production method using the same

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KR100867097B1 (en) * 2008-06-09 2008-11-04 (주)한동알앤씨 Asphalt concrete for pavement
JP2015213869A (en) * 2014-05-09 2015-12-03 株式会社片山化学工業研究所 Crushing method of mineral or rock or their composition, and treatment agent for use therein

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KR100773067B1 (en) * 2007-03-02 2007-11-02 (주)이시엔네트 The blending method and the apparatus for auto-controlling ratio of size of recycling aggregate
KR100867097B1 (en) * 2008-06-09 2008-11-04 (주)한동알앤씨 Asphalt concrete for pavement
JP2015213869A (en) * 2014-05-09 2015-12-03 株式会社片山化学工業研究所 Crushing method of mineral or rock or their composition, and treatment agent for use therein

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* Cited by examiner, † Cited by third party
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KR102503785B1 (en) * 2022-07-28 2023-02-28 (주)한동알앤씨 Manufacturing method of composite recycled aggregate using waste asphalt and composite recycled aggregate made by the manufacturing method
KR102625698B1 (en) 2023-07-20 2024-01-16 주식회사 구성기업 Aggregate gradation adjustment system through crusher input amount control and aggregate production method using the same

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