KR100936673B1 - Recycled fine-appregate for drainage system - Google Patents

Recycled fine-appregate for drainage system Download PDF

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KR100936673B1
KR100936673B1 KR1020090067186A KR20090067186A KR100936673B1 KR 100936673 B1 KR100936673 B1 KR 100936673B1 KR 1020090067186 A KR1020090067186 A KR 1020090067186A KR 20090067186 A KR20090067186 A KR 20090067186A KR 100936673 B1 KR100936673 B1 KR 100936673B1
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South Korea
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aggregate
circulating
ksf
less
weight
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KR1020090067186A
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Korean (ko)
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천기화
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(주)한동알앤씨
한국신기술산업(주)
에스씨종합건설(주)
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Priority to KR1020090067186A priority Critical patent/KR100936673B1/en
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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
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
    • C04B14/361—Soil, e.g. laterite
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/40—Surface-active agents, dispersants
    • C04B2103/404—Surface-active agents, dispersants cationic
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/50—Defoamers, air detrainers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining

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

Abstract

PURPOSE: A composition of recycling frame material for drain pipe is provided to maintain stable porosity and prevent scattering. CONSTITUTION: A composition of recycling frame material for drain pipe contains 1-10 weight parts of pulverized mudstone and 2-7 weight parts of mixture containing water and surfactant based on 100 weight parts of recycling material. The surfactant is cationic surfactant.

Description

하수관거용 순환잔골재 조성물 {Recycled Fine-appregate for Drainage System}Recycled Fine-appregate for Drainage System

본 발명은 하수관거용 잔골재 조성물에 관한 것으로, 구체적으로는 특정 입도로 선별 및 혼합된 잔골재와 이암토 및 계면활성제를 포함하는 혼합액으로 이루어진 수관거용 잔골재 조성물에 관한 것이다.The present invention relates to a fine aggregate composition for sewage pipe, and more particularly, to a fine aggregate composition for water pipe culling consisting of a mixed solution including fine aggregates and mud soil and a surfactant selected and mixed to a specific particle size.

하수관거는 하수를 공공하수처리시설로 이송하거나 하천, 바다 그 밖의 공유수면으로 유출시키기 위하여 설치 또는 관리하는 관로와 그 부속시설을 말한다. 하수관거의 기초 또는 되메우기에 사용되는 재료는 관거의 종류, 지반의 토질, 지내력, 시공방법, 하중조건 및 매설조건 등에 따라 다르며 환경부 제정 하수도 시설기준등에서 규정하고 있다. 하수관거용 천연모래는 그 소비량이 매우 방대할 뿐 아니라 급격히 증가되고 있으나, 채취할 수 있는 모래의 양은 제한적이므로 그 비용이 높아질 수 밖에 없을 뿐 아니라, 모래의 채취로 인한 강바닥의 훼손으로 각종 환경문제를 야기하고 있는 실정이다. 따라서, 폐콘크리트와 같은 폐기물을 재생하여 대체 사용함으로써 천연모래의 채취량을 줄이기 위한 노력이 지속되어 왔으며, 적절 한 품질을 유지하기 위한 각종 기준도 제시되어 왔다. Sewage pipes are pipelines and their associated facilities that are installed or managed to transport sewage to public sewage treatment facilities, or to discharge them to rivers, seas, and other shared surfaces. The materials used for the foundation or backfilling of sewage pipes vary depending on the type of conduit, soil quality, bearing capacity, construction method, load condition and burial condition, and are prescribed by the Ministry of Environment's sewage facility standards. The consumption of sewage pipes is not only very large but also rapidly increasing. However, the amount of sand that can be collected is limited, and the cost is high. It is causing. Therefore, efforts have been made to reduce the amount of collected natural sand by recycling and replacing waste such as waste concrete, and various standards for maintaining proper quality have been proposed.

통상적으로, 순환골재는 폐콘크리트와 같은 건설폐기물을 파쇄장치를 이용하여 파쇄한 후, 이물질을 제거하고 각 입도별로 분류하는 방법으로 제조하며, 원하는 혼합비에 따라 입도별로 필요량을 혼합하여 사용한다. 이때, 큰 입도의 순환골재부터 작은 입도의 순환골재까지 다양한 입도를 혼합함으로써 공극률을 낮출 수 있다.Typically, recycled aggregates are manufactured by crushing construction waste such as waste concrete using a crushing device, and then removing foreign substances and classifying them by particle size, and mixing required amounts by particle size according to a desired mixing ratio. At this time, the porosity can be lowered by mixing various particle sizes from a large particle size circular aggregate to a small particle size circular aggregate.

본 발명에서 사용하는 하수관거용 잔골재는 입도 10mm 이하의 순환골재를 의미하며 이하에서 순환잔골재로 표현한다.Sewage aggregate used in the present invention means a circulating aggregate having a particle size of less than 10mm and expressed as circulating aggregate in the following.

순환잔골재 혼합물에는 입도가 작은 미립자 포함되게 된다. 그러나, 미립자는 혼합과정이나 운반과정에서 쉽게 비산되어 버리므로, 혼합과정 및 운반과정에서의 소실로 실제보다 잔여량이 줄게 된다. 따라서, 안정적인 품질의 순환잔골재 혼합물을 공급하기 위해서는 미립자의 비산을 방지하는 처리를 할 필요가 있다.The circulating fine aggregate mixture will contain fine particles having a small particle size. However, since the fine particles are easily scattered during the mixing or transporting process, the amount of the fine particles remaining in the mixing and transporting process is reduced. Therefore, in order to supply the circulating fine aggregate mixture of stable quality, it is necessary to perform the process of preventing the scattering of fine particles.

또한, 모래나 그 이하로 작은 입도를 지닌 미분말의 손환잔골재는 물과 쉽게 반응하여 강알칼리성 물질을 배출하게 되어, 알칼리성 침출수의 발생으로 토양 및 수질을 오염시켜 환경파괴를 일으킬 위험성을 안고 있어 알카리성을 저하시킨 순환잔골재만을 사용할 수 있도록 정부에서도 이를 엄격히 규제하고 있어 알카리성을 저하된 순환잔골재를 개발하기 위한 다각적인 노력이 시도되고 있다. In addition, finely-substituted fine aggregates having a small particle size of sand or less easily react with water to release strong alkaline substances, and have the risk of causing environmental damage by polluting soil and water by the generation of alkaline leachate. The government strictly regulates this so that only reduced aggregate aggregates can be used, and various efforts are being made to develop alkaline reduced aggregate aggregates.

본 발명에서는 미분의 분산을 방지하여 안정적인 품질을 유지할 수 있을 뿐 아니라, 강염기성 유출수로 인한 환경파괴를 방지할 수 있는 하수관거용 순환잔골재 조성물을 제공하고자 한다.In the present invention, to prevent the dispersion of fine powder to maintain a stable quality, to provide a sewage pipe circulating aggregate composition that can prevent the destruction of the environment due to the strong base runoff.

본 발명에서는 상기 과제해결을 위하여 특정 입도로 선별 및 혼합된 하수관거용 순환잔골재와 pH가 낮은 광물인 이암토 및 양이온 계면활성제 수용액을 주성분으로 하는 하수관거용 순환잔골재 조성물을 제공한다.The present invention provides a circulating aggregate composition for sewage pipes, which is mainly composed of circulating aggregates for sewage pipes, which are selected and mixed to a specific particle size, and aqueous solutions of mud and cation surfactants, which are minerals having low pH.

본 발명에서 하수관거용 순환잔골재는 폐콘크리트로부터 생산한 재생골재를 의미한다. 하수도관 등에 사용하는 통상의 골재와 마찬가지로 순환잔골재는 입도별로 특정한 비율을 만족시킬 수 있도록 혼합하여 사용하며, 그 비율이 적정 범위에서 벗어난 경우에는 공극률이 높아 하수도관의 강도가 떨어지게 된다. In the present invention, circulating aggregate aggregate for sewage pipe means recycled aggregate produced from waste concrete. Like conventional aggregates used in sewer pipes, circulating aggregate aggregates are mixed and used to satisfy specific ratios for each particle size. When the ratio is out of an appropriate range, the porosity is high and the strength of the sewer pipes decreases.

본 발명에서 사용하는 하수관거용 순환잔골재는 입도가 0.08mm 이하인 미분을 포함하고 있으나. 이와 같이 입도가 작은 미분의 경우, 통상적인 운반이나 혼합과정에서 쉽게 비산되어 버리므로, 미분을 비율에 맞춰 혼합해 놓았다 하더라도, 실제 사용시에는 미분이 제외된 순환잔골재를 사용하게 된다. 따라서, 순환잔골재에 적절한 수분을 공급하여 운반이나 혼합과정 중의 비산을 방지함으로써 정확한 규격을 유지해주는 것이 바람직하며, 적절한 수분을 함유하는 순환잔골재는 건조된 상태의 순환잔골재에 비하여 다짐률도 높아 강도향상에 도움을 줄 수 있다. 본 발명에서는 통상의 물과 계면활성제를 혼합한 혼합액을 첨가하여 비산을 방지한다. Sewage pipe used in the present invention circulating fine aggregate contains fine powder having a particle size of 0.08mm or less. In the case of fine particles having such a small particle size, they are easily scattered in a normal transport or mixing process. Even though the fine powders are mixed in proportion, the finely divided fine particles are used in actual use. Therefore, it is desirable to maintain the exact specifications by supplying appropriate moisture to the circulating fine aggregate to prevent the scattering during transportation or mixing process, and the circulating fine aggregate containing the appropriate moisture has a higher compaction rate than the circulating fine aggregate in the dried state to improve the strength. Can help. In the present invention, a mixture of ordinary water and a surfactant is added to prevent scattering.

통상적인 순환골재는 알칼리성 침출수의 발생으로 토양 및 수질을 오염시켜 환경파괴를 일으킬 위험성을 지니고 있으며, 따라서 이를 중화하기 위한 다양한 시도가 이루어지고 있다. 일례로 순환골재에 산 부가물을 첨가하여 순환골재를 중화시키려는 시도가 있었으나, 골재표면에 산 부가물을 고르게 침투시키는 것이 곤란하므로, 실용화에 어려움이 있었다. 이에 본 발명자는 포항에서 출토되는 이암토가 약산성을 띄고 있다는 사실을 발견하고, 이를 순환잔골재에 첨가하여 혼합한 결과, 순환잔골재 100 중량부당 이암토 5중량부를 혼합한 경우 pH가 7.2정도로 중성을 띄는 것을 확인하고 본 발명을 완성하게 되었다.Conventional recycled aggregates have the risk of causing environmental damage by polluting soil and water quality by the generation of alkaline leachate, and various attempts have been made to neutralize them. As an example, there have been attempts to neutralize the circulating aggregates by adding acid adducts to the circulating aggregates, but it is difficult to practically infiltrate the acid adducts on the aggregate surfaces. The present inventors found that Iam soil excavated from Pohang has a weak acidity, and after adding it to circulating fine aggregate, when mixing 5 parts by weight of Iam soil per 100 parts by weight of circulating fine aggregate, the pH was about 7.2. It was confirmed that the present invention was completed.

이암토는 퇴적암의 일종으로 점토광물과 석영, 장석 등의 혼합물로 이루어져 있으며, 비중이 2.22정도이고, 화학 조성은 통상적으로 SiO2, Al2O3, Fe2O3, TiO2, SO3로 조성되어 있고, 포항지역에서 산출되는 이암토은 pH는 4.5~5.5로 산성을 띄고 있는 것으로 확인되었다. 본 발명은 pH가 낮은 이암토를 순환잔골재에 혼합함으로써 강염기성 침출수를 중화시켜 유출수로 인한 환경파괴를 방지하는 역할은 물론, 공극율을 낮추어 순환잔골재의 강도를 증가시킨다. 본 발명에 있어서, 이암토가 너무 많거나 적게 혼합되면 적정 수준의 pH를 내지 못하여 중화효과가 떨어지므로 잔 순환골재 100중량부에 대하여 이암토 1~10중량부의 범위 내로 혼합하는 것이 바람직하다. Mudstone is a type of sedimentary rock and is composed of a mixture of clay mineral, quartz, feldspar, etc., and its specific gravity is about 2.22. The chemical composition is usually SiO 2 , Al 2 O 3 , Fe 2 O 3 , TiO 2 , SO 3 Iam soil produced in Pohang area was found to have an acidic pH of 4.5 ~ 5.5. The present invention neutralizes strong base leachate by mixing mudstone with low pH to circulating fine aggregates to prevent environmental destruction due to effluent, as well as to lower the porosity to increase the strength of circulating fine aggregates. In the present invention, when the mud soil is mixed with too much or too little, the neutralization effect is lowered due to the inability to achieve a proper level of pH. Therefore, the mud soil is preferably mixed in the range of 1 to 10 parts by weight of mud soil with respect to 100 parts by weight of the remaining recycled aggregate.

본 발명의 순환잔골재 조성물은 pH가 낮은 광물인 이암토와 미립자의 비산을 방지하기 위하여 물과 계면활성제를 사용하는 점에 특징이 있으며, 추가로 소포제나 비산방지제를 포함할 수 있다. The circulating fine aggregate composition of the present invention is characterized in that water and a surfactant are used in order to prevent the scattering of the mud and fine particles, which are minerals having a low pH, and may further include an antifoaming agent or a scattering inhibitor.

물과 계면활성제는 미분의 비산을 방지하는 역할을 하는 성분으로, 본 발명에서는 양이온성 계면활성제를 사용한다. 본 발명의 혼합액에 있어서, 계면활성제가 너무 적게 혼합되면 미분의 비산을 방지하는 효과가 떨어지고 너무 많이 혼합되면 기포가 발생하여 잔골재의 공극율를 저하시키는 원인이 될 수 있으므로, 물 100중량부에 대하여 2~7중량부의 범위 내에서 혼합하는 것이 바람직하다.Water and the surfactant are components that play a role in preventing the scattering of fine powder, and the present invention uses a cationic surfactant. In the mixed solution of the present invention, if the surfactant is mixed too little, the effect of preventing the scattering of fine powder is inferior, and mixing too much may cause bubbles to decrease the porosity of the fine aggregate, so that 2 to 100 parts by weight of water It is preferable to mix within the range of 7 weight part.

추가로, 본 발명의 혼합액에는 소포제를 첨가할 수 있다. 소포제는 거품의 발생을 억제하는 역할을 하는 것으로, 본 발명에서는 혼합액의 pH에 영향을 주지 않으며 휘발성이 적고 확산력이 큰 특성을 지닌 비이온성 계면활성제로 이루어진 소포제를 사용한다. 본 발명에 있어서 소포제는 거품이 발생하지 않을 경우에는 첨가하지 않아도 무방하나, 첨가시에는 너무 소량 또는 다량을 할 경우 첨가효과가 떨어지거나 균일한 분산이 어렵거나 하수도관의 물성을 떨어뜨리는 원인이 될 수 있으므로, 물 100중량부에 대하여 0.01~0.05중량부의 범위 내에서 첨가하는 것이 바람직하다.In addition, a defoaming agent can be added to the mixed liquid of the present invention. The antifoaming agent plays a role of suppressing the generation of bubbles. In the present invention, an antifoaming agent is used, which does not affect the pH of the mixed solution and has a low volatility and a high diffusivity. In the present invention, the antifoaming agent does not need to be added when foaming does not occur, but when it is added in a small amount or too much, the effect of the addition or the uniform dispersion is difficult or the physical properties of the sewer pipe may be reduced. Since it is possible to add, it is preferable to add in 0.01-0.05 weight part with respect to 100 weight part of water.

본 발명의 하수관거용 순환잔골재 조성물은 필요한 입도별로 선별 및 혼합되어 있는 잔골재에 이암토를 첨가한 후, 계면활성제를 포함하는 혼합액을 혼합하는 방법으로 제조한다. 본 발명의 하수관거용 순환잔골재 조성물에 있어서, 혼합액의 혼합비율이 너무 낮으면 비산방지를 비롯한 첨가효과가 떨어지고, 혼합액의 혼합비율이 너무 높으면 추후 혼합될 결합재의 결합을 방해할 수 있으므로, 잔골재 100중량부에 대하여 2~7중량부의 혼합액을 첨가하는 것이 바람직하다.The recycled aggregate composition for sewage pipes of the present invention is prepared by adding mudstone to the fine aggregates that are selected and mixed for each required particle size, and then mixing the mixed solution containing the surfactant. In the circulating aggregate composition for sewage pipes of the present invention, if the mixing ratio of the mixed solution is too low, the effect of addition, including the prevention of scattering is reduced, if the mixing ratio of the mixed solution is too high may interfere with the binding of the binder to be mixed later, 100 aggregate aggregate It is preferable to add 2-7 weight part of mixed liquid with respect to a part.

본 발명에 따른 하수관거용 순환잔골재 조성물은 특정 입도로 선별 및 혼합된 순환골재와 이암토 및 계면활성제를 포함하는 수용액으로 이루어져, 강염기성 유출수로 인한 환경의 파괴를 방지할 수 있을 뿐 아니라, 적절한 수분의 함량으로 다짐률이 우수하고 미분의 비산을 방지하여 안정적인 공극률을 유지시켜주므로, 하수도관의 품질유지를 용이하게 한다. The circulating aggregate composition for sewage pipes according to the present invention is composed of an aqueous solution containing circulating aggregates and mudstones and surfactants selected and mixed to a specific particle size, which can prevent the destruction of the environment due to strong basic effluents, as well as appropriate moisture. The compaction rate is excellent by the content of and maintains a stable porosity by preventing the scattering of fine powder, it is easy to maintain the quality of the sewer pipe.

본 발명에 따른 하수관거용 순환잔골재 조성물은 특정 입도로 선별 및 혼합된 순환골재와, 이암토와 계면활성제를 포함하는 수용액으로 이루어진다.The circulating aggregate composition for sewage pipe according to the present invention comprises a circulating aggregate selected and mixed to a specific particle size, and an aqueous solution containing mudstone and a surfactant.

본 발명에서 잔골재는 하수도관에 사용하는 통상의 골재와 마찬가지로 입도 별로 특정한 비율을 만족시킬 수 있도록 혼합하여 사용하며, 그 비율이 적정 범위에서 벗어난 경우에는 공극률이 높아 하수도관의 강도가 떨어지게 된다. 따라서, 본 발명에서도 특정한 입도 비율로 혼합되어 있는 규격화된 순환잔골재를 사용하며, 본발명에서 사용하는 순환잔골재는 하기의 표 1과 같은 물리적 성질을 갖는다.In the present invention, the fine aggregate is used to mix so as to satisfy a specific ratio for each particle size as in the conventional aggregate used in the sewer pipe, when the ratio is out of an appropriate range, the porosity is high, the strength of the sewer pipe falls. Therefore, the present invention also uses standardized circulating aggregates mixed at a specific particle size ratio, and circulating aggregates used in the present invention have physical properties as shown in Table 1 below.

[표 1]TABLE 1

구분division 기준standard 시험방법Test Methods 최대치수(mm)Maximum dimension (mm) 10이하below 10 KSF 2502KSF 2502 소성지수Plasticity index 10이하below 10 KSF 2303KSF 2303 수정CBR치(%)Corrected CBR value (%) 10이상over 10 KSF 2320KSF 2320 0.08mm체통과율(%)0.08mm passage rate (%) 15이하15 or less KSF 2511KSF 2511 점토덩어리(%)Clay mass (%) 5.0이하5.0 or less KSF 2512KSF 2512 염화물(NaCl환산량,%)Chloride (NaCl equivalent,%) 0.04이하Less than 0.04 KSF 2515KSF 2515 이물질함류량(%) Foreign substance content (%) 유기물질Organic matter 1.0 이하(용적기준)1.0 or less (by volume) KSF 2576 KSF 2576 무기물질Inorganic material 1.0 이하(질량기준)1.0 or less (by mass)

상기 표 1에 나타난 바와 같이, 본 발명에서 사용하는 순환잔골재는 건설폐기물의 재활용촉진에 관한 법률제35조에 따른 순환골재 품질기준에 적합한 것으로 입도 10mm이며 이들 중 0.08mm 이하의 미분을 2~10중량% 포함하고 있다. As shown in Table 1, the recycled fine aggregate used in the present invention is suitable for the quality of recycled aggregates according to Article 35 of the Promotion Act on the Promotion of Recycling of Construction Waste, and has a particle size of 10 mm and fine powder of less than 0.08 mm of 2 to 10 weight. It contains%.

따라서 상기의 입도가 적은 미분의 경우, 통상적인 운반이나 혼합과정에서 쉽게 비산되어 버리므로 적절한 수분을 공급함으로써 비산을 방지해주는 것이 바람직하며, 적절한 수분을 함유하는 잔골재는 건조된 상태의 순환잔골재에 비하여 다짐률도 높아 강도향상에 도움을 줄 수 있다. 본 발명에서는 통상의 물을 대신하여 특정한 혼합액을 사용함으로써 단순한 수분공급의 수단 뿐 아니라 비산방지 및 환 경오염방지 효과를 얻는다.Therefore, in the case of the fine powder having a small particle size, since it is easily scattered during the normal transportation or mixing process, it is desirable to prevent scattering by supplying proper moisture, and the fine aggregate containing the appropriate moisture is lower than the dry circulated fine aggregate. The compaction rate is also high, which can help improve strength. In the present invention, by using a specific mixed solution in place of ordinary water, as well as a simple means of supplying water to prevent the scattering and environmental pollution.

본 발명의 하수관거용 순환잔골재 조성물은 순환골재 외에도 광물질인 이암토를 포함하고 있다. 이암토는 순환잔골재가 갖는 강염기를 중화시킬 뿐만 아니라 시멘트의 공극율을 낮추어 강도를 증가시킨다. 본 발명에 있어서, 이암토의 양이 너무 많거나 적게 혼합되면 적정 수준의 pH를 내지 못하여 중화효과가 떨어지므로 숭환잔골재 100중량부에 대하여 1~10중량부의 범위 내로 혼합하는 것이 바람직하다.Circulating aggregate composition for sewage pipes of the present invention contains the mineral Iam soil in addition to the circulating aggregate. Ilamite not only neutralizes strong bases of recycled fine aggregates, but also increases strength by lowering the porosity of cement. In the present invention, when the amount of mudstone is mixed too much or too little, the neutralization effect is reduced because it does not achieve a proper level of pH, and it is preferable to mix it within the range of 1 to 10 parts by weight with respect to 100 parts by weight of Soonghwan residue aggregate.

또한, 본 발명의 조성물은 계면활성제와 물을 포함하는 혼합액을 포함하고 있으며, 혼합액에는 필요에 따라 추가로 소포제를 포함할 수 있다. In addition, the composition of the present invention includes a mixed solution containing a surfactant and water, and the mixed solution may further include an antifoaming agent as necessary.

계면활성제는 미분의 비산을 방지하는 역할을 하는 성분으로, 본 발명에서는 양이온성 계면활성제를 선택하여 사용한다. 본 발명에서는 양이온성 계면활성제 중 저기포성의 특징을 나타내어 다량의 소포제를 혼합할 필요가 없을 뿐 아니라 상대적으로 독성도 낮아 유출수로 인한 환경파괴에 대한 우려도 낮으며, 비용도 저렴한 양이온성 계면활성제라면 어느 것을 사용하여도 무방하며, 이를 충족시키는 예로써 모노에탄올 아민, 디에탄올 아민, 트리에탄올 아민을 들 수 있다. 본 발명의 혼합액에 있어서, 계면활성제가 너무 적게 혼합되면 미분의 비산을 방지하는 효과가 떨어지고 너무 많이 혼합되면 기포가 발생하여 순환잔골재의 공극율를 저하시키는 원인이 될 수 있으므로, 계면활성제는 물 100중량부에 대하여 2~7중량부의 범위 내에 서 혼합하는 것이 바람직하며, 물 100중량부에 대하여 5중량부를 혼합하는 것이 가장 바람직하다.Surfactant is a component that serves to prevent the scattering of fine powder, in the present invention, a cationic surfactant is selected and used. In the present invention, it is not necessary to mix a large amount of antifoaming agent due to the low foaming characteristics among the cationic surfactants, and it is also relatively low in toxicity, so there is no concern about environmental destruction due to the effluent, and if the cationic surfactant is inexpensive, Any may be used, and examples of satisfying this include monoethanol amine, diethanol amine, and triethanol amine. In the mixed solution of the present invention, if the surfactant is mixed too little, the effect of preventing the scattering of fine powder is inferior and if the mixing is too much, bubbles may occur, which may cause a decrease in the porosity of the circulating aggregate, and the surfactant is 100 parts by weight of water. It is preferable to mix in the range of 2-7 weight part with respect to, and it is most preferable to mix 5 weight part with respect to 100 weight part of water.

본 발명의 혼합액은 필요에 따라 소포제를 추가로 포함할 수 있다. 소포제는 거품의 발생을 억제하는 역할을 하는 것으로, 본 발명에서는 혼합액의 pH에 영향을 주지 않는 비이온성 성분을 사용한다. 소포제를 첨가할 때에는 휘발성이 적고 확산력이 큰 특성을 지닌 비이온성 계면활성제로 이루어진 소포제를 선택하는 것이 바람직하며, 그 예로써 폴리옥시프로필렌 공중합체을 들 수 있다. 본 발명에서는 계면활성제의 종류나 그 사용량에 따라 거품이 발생하지 않을 경우에는 소포제를 첨가하지 않아도 무방하나, 첨가시에 너무 소량 또는 다량을 첨가할 경우 첨가효과가 떨어지거나 균일한 분산이 어렵거나 순환잔골재의 물성을 떨어뜨리는 원인이 될 수 있으므로, 물 100중량부에 대하여 0.01~0.05중량부의 범위 내에서 첨가하는 것이 바람직하다.The mixed solution of the present invention may further include an antifoaming agent as necessary. The antifoaming agent serves to suppress the generation of bubbles, and in the present invention, a nonionic component that does not affect the pH of the mixed solution is used. When adding an antifoamer, it is preferable to select the antifoamer consisting of a nonionic surfactant which has the characteristic of low volatility and a large diffusivity, for example, a polyoxypropylene copolymer is mentioned. In the present invention, when foaming does not occur depending on the type of surfactant or its amount of use, it is not necessary to add an antifoaming agent. Since it may cause the physical property of a fine aggregate to fall, it is preferable to add in 0.01-0.05 weight part with respect to 100 weight part of water.

본 발명의 혼합액을 제조시에는, 첨가되는 계면활성제나 소포제의 양이 매우 적으므로, 물에 직접 혼합시 균일한 혼합이나 정확한 계량이 용이하지 못할 수 있다. 따라서, 각각의 성분을 포함하는 농축액을 수용액의 형태로 제조한 후, 각 수용액의 필요량 및 추가의 물 투입량을 산정한 다음, 이들을 혼합하는 방식으로 제조하는 것이 바람직하다.In the preparation of the mixed liquid of the present invention, since the amount of the surfactant or the antifoaming agent added is very small, uniform mixing or accurate metering may not be easy when directly mixed with water. Therefore, it is preferable to prepare a concentrate containing each component in the form of an aqueous solution, and then calculate the required amount and additional water input amount of each aqueous solution, and then prepare them by mixing them.

본 발명의 하수관용 순환잔골재 조성물은 필요한 입도별로 선별 및 혼합되어 있는 순환잔골재에 이암토를 첨가하여 혼합한 후, 상기 방법으로 제조된 혼합액을 혼합함으로써 제조할 수 있다. 본 발명에 있어서, 혼합액과 순환잔골재의 혼합비율에 특별한 제한은 없으나, 골재의 다짐률을 높이는 동시에 pH가 7.0 전후인 하수관거용 순환잔골재 조성물을 얻기 위해서는 순환골재 100중량부에 대하여 이암토 1~10중량부와 혼합액 2~7중량부를 혼합하는 것이 바람직하다.The circulating aggregate aggregate composition for sewage pipe of the present invention can be prepared by mixing the mixed liquor prepared by the above method after mixing and adding mudstone to the circulating fine aggregate, which is selected and mixed for each required particle size. In the present invention, there is no particular limitation on the mixing ratio of the mixed solution and the circulating aggregate, but in order to increase the compaction rate of the aggregate and at the same time to obtain a circulating aggregate composition for sewage pipes having a pH of about 7.0, Iamto 1 to 10 parts by weight of the circulating aggregate. It is preferable to mix a weight part and 2-7 weight part of mixed liquids.

Claims (8)

입도가 10mm 이하인 순환잔골재 100중량부에 대하여,For 100 parts by weight of circulating fine aggregate having a particle size of 10 mm or less, 분쇄가공된 이암토 1~10중량부와 물과 계면활성제를 포함하는 혼합액 2~7중량부로 이루어지고,1 to 10 parts by weight of crushed and processed mud soil and 2 to 7 parts by weight of a mixed solution containing water and a surfactant, 상기 혼합액은 물 100중량부에 대하여 계면활성제 2~7중량부와 소포제 0.01~0.05중량부를 포함하는 것을 특징으로 하는 하수관거용 순환잔골재 조성물.The mixed solution is circulating aggregate composition for sewage pipes, characterized in that containing 2 to 7 parts by weight of surfactant and 0.01 to 0.05 parts by weight of antifoaming agent. 제1항에 있어서, 상기 순환잔골재는 아래와 같은 물리적 성질을 갖는 것을 특징으로 하는 하수관거용 잔골재 조성물.The aggregate aggregate composition for sewer pipes according to claim 1, wherein the circulating fine aggregate has the following physical properties. 구분division 기준standard 시험방법Test Methods 최대치수(mm)Maximum dimension (mm) 10이하below 10 KSF 2502KSF 2502 소성지수Plasticity index 10이하below 10 KSF 2303KSF 2303 수정CBR치(%)Corrected CBR value (%) 10이상over 10 KSF 2320KSF 2320 0.08mm체통과율(%)0.08mm passage rate (%) 15이하15 or less KSF 2511KSF 2511 점토덩어리(%)Clay mass (%) 5.0이하5.0 or less KSF 2512KSF 2512 염화물(Nacl환산량,%)Chloride (Nacl equivalent,%) 0.04이하Less than 0.04 KSF 2515KSF 2515 이물질함류량(%) Foreign substance content (%) 유기물질Organic matter 1.0 이하(용적기준)1.0 or less (by volume) KSF 2576 KSF 2576 무기물질Inorganic material 1.0 이하(질량기준)1.0 or less (by mass)
제2항에 있어서,The method of claim 2, 상기 순환잔골재는 입도가 0.08mm 이하인 미분을 2~10 중량% 포함하는 것을 특징으로 하는 하수관거용 순환잔골재 조성물.The circulating fine aggregate is circulating aggregate aggregate composition for sewage pipes, characterized in that containing 2 to 10% by weight of fine powder having a particle size of 0.08 mm or less. 삭제delete 제1항에 있어서, The method of claim 1, 상기 계면활성제는 양이온 계면활성제인 것을 특징으로 하는 하수관거용 순환잔골재 조성물.The surfactant is sewage circulating aggregate aggregate composition, characterized in that the cationic surfactant. 제5항에 있어서, The method of claim 5, 상기 양이온 계면활성제는 모노에탄올 아민, 디에탄올 아민, 트리에탄올 아민 중에서 선택된 1종인 것을 특징으로 하는 하수관거용 순환잔골재 조성물.The cationic surfactant is a sewage pipe circulating aggregate composition, characterized in that one selected from monoethanol amine, diethanol amine, triethanol amine. 삭제delete 제1항에 있어서,The method of claim 1, 상기 소포제는 지방산 에스테르인 것을 특징으로 하는 하수관거용 순환잔골재 조성물.The antifoaming agent circulating aggregate composition for sewage pipes, characterized in that the fatty acid ester.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102036896B1 (en) * 2019-03-08 2019-11-26 (주)한동알앤씨 Mixed Aggregate for Subbase Layer Using Recycled Asphalt Concrete and Soil and Manufacturing Method Thereof
CN112047660A (en) * 2020-08-25 2020-12-08 北京金隅水泥节能科技有限公司 Grinding aid and production process and application thereof

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KR100239927B1 (en) * 1998-01-22 2000-01-15 김헌출 High-strength lightweight concrete composition using micro powders of mud stone
JP2001064065A (en) 1999-08-25 2001-03-13 Nippon Hodo Co Ltd Heating mixture for paving
KR100642788B1 (en) * 2005-03-31 2006-11-10 홍순주 Production Method for High Quality Reclaimed Aggregate using Treating Solution

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100239927B1 (en) * 1998-01-22 2000-01-15 김헌출 High-strength lightweight concrete composition using micro powders of mud stone
JP2001064065A (en) 1999-08-25 2001-03-13 Nippon Hodo Co Ltd Heating mixture for paving
KR100642788B1 (en) * 2005-03-31 2006-11-10 홍순주 Production Method for High Quality Reclaimed Aggregate using Treating Solution

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102036896B1 (en) * 2019-03-08 2019-11-26 (주)한동알앤씨 Mixed Aggregate for Subbase Layer Using Recycled Asphalt Concrete and Soil and Manufacturing Method Thereof
CN112047660A (en) * 2020-08-25 2020-12-08 北京金隅水泥节能科技有限公司 Grinding aid and production process and application thereof
CN112047660B (en) * 2020-08-25 2021-07-09 北京金隅水泥节能科技有限公司 Grinding aid and production process and application thereof

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