KR100932654B1 - Recycled aggregate composition - Google Patents
Recycled aggregate composition Download PDFInfo
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- KR100932654B1 KR100932654B1 KR20090063348A KR20090063348A KR100932654B1 KR 100932654 B1 KR100932654 B1 KR 100932654B1 KR 20090063348 A KR20090063348 A KR 20090063348A KR 20090063348 A KR20090063348 A KR 20090063348A KR 100932654 B1 KR100932654 B1 KR 100932654B1
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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
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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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
- 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
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
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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)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
본 발명은 가공순환골재 조성물에 관한 것으로, 구체적으로는 특정 입도로 선별 및 혼합된 순환골재와 이암토 및 계면활성제를 포함하는 혼합액으로 이루어진 골재조성물에 관한 것이다.The present invention relates to a processing circulating aggregate composition, and more particularly, to an aggregate composition comprising a circulating aggregate selected and mixed to a specific particle size and a mixed solution including mud soil and a surfactant.
건설, 토목 구조물에 있어서, 골재는 보편적으로 사용되는 재료로서, 그 소비량이 매우 방대할 뿐 아니라 꾸준히 증가되고 있는 실정이다. 한편, 채취할 수 있는 천연골재의 양은 한정적이므로 그 비용이 높아질 수 밖에 없을 뿐 아니라, 골재의 채취로 인한 자연의 훼손 또한 심각한 환경파괴에 해당된다. 따라서, 폐콘크리트와 같은 폐기물을 재생하여 대체 사용함으로써 천연골재의 채취량을 줄이기 위한 노력이 지속되어 왔으며, 적절한 품질을 유지하기 위한 각종 기준도 제시되어 왔다. In construction and civil engineering structures, aggregate is a commonly used material, and its consumption is not only enormous but also steadily increasing. On the other hand, the amount of natural aggregate that can be collected is limited because the cost is not only high, but also damage to nature due to the collection of aggregate is also a serious environmental destruction. Therefore, efforts have been made to reduce the amount of collected natural aggregates by recycling and replacing waste such as waste concrete, and various standards have been proposed to maintain appropriate quality.
통상적으로, 재생골재는 폐콘크리트와 같은 건설폐기물을 파쇄장치를 이용하여 파쇄한 후, 이물질을 제거하고 각 입도별로 분류하는 방법으로 제조하며, 원하는 혼합비에 따라 입도별로 필요량을 혼합하여 사용한다. 이때, 큰 입도의 골재부 터 작은 입도의 골재까지 다양한 입도를 혼합함으로써 공극률을 낮출 수 있으며, 따라서 골재혼합물에는 입도가 작은 미립가 포함되게 된다. 그러나, 미립자는 혼합과정이나 운반과정에서 쉽게 비산되어 버리므로, 혼합과정 및 운반과정에서의 소실로 실제보다 잔여량이 줄게 된다. 따라서, 안정적인 품질의 골재혼합물을 공급하기 위해서는 미립자의 비산을 방지하는 처리를 할 필요가 있다.Typically, recycled aggregates are manufactured by shredding construction waste such as waste concrete using a shredding 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 aggregates of large particle size to aggregates of small particle size, and thus the aggregate mixture includes 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 aggregate mixture of stable quality, it is necessary to perform the process which prevents scattering of fine particles.
한편, 폐콘크리트로부터 제조한 재생골재는 현재 건설분야에 널리 사용 중으로, 입도가 큰 재생골재의 경우 상대적으로 큰 문제가 없으나, 최근들어 모래나 그 이하로 작은 입도를 지닌 미분말의 재생골재는 물과 쉽게 반응하여 강알칼리성 물질을 배출하게 되며, 결과적으로 재생골재를 포장재로 사용하는 것은 알칼리성 침출수의 발생으로 토양 및 수질을 오염시켜 환경파괴를 일으킬 위험성을 안고 있다는 사실이 알려져, 이를 방지하기 위한 노력의 필요성이 제기되었다. On the other hand, recycled aggregates manufactured from waste concrete are widely used in the field of construction. In the case of recycled aggregates having a large particle size, there is no problem. However, recently, recycled aggregates of fine powder having a small particle size of sand or less are It reacts easily and releases strong alkaline substances. As a result, it is known that using recycled aggregates as a packaging material poses a risk of environmental damage by polluting soil and water due to the generation of alkaline leachate. Necessity was raised.
본 발명에서는 미분의 분산을 방지하여 안정적인 품질을 유지할 수 있을 뿐 아니라, 강염기성 유출수로 인한 환경파괴를 방지할 수 있는 가공순환골재 조성물을 제공하고자 한다.In the present invention, to prevent the dispersion of fine powder to maintain a stable quality, to provide a processing circulating aggregate composition that can prevent the destruction of the environment due to strong base runoff.
본 발명에서는 상기 과제해결을 위하여 특정 입도로 선별 및 혼합된 순환골재와 pH가 낮은 광물인 이암토 및 양이온 계면활성제 수용액을 주성분으로 하는 가공순환골재 조성물을 제공한다.The present invention provides a processed circulating aggregate composition mainly composed of circulating aggregates selected and mixed to specific particle sizes and aqueous solutions of diametic soils and cationic surfactants having low pH to solve the above problems.
본 발명에서 순환골재는 폐콘크리트로부터 생산한 재생골재를 의미한다. 도로포장재에 사용하는 통상의 골재와 마찬가지로 순환골재 또한 입도별로 특정한 비율을 만족시킬 수 있도록 혼합하여 사용하며, 그 비율이 적정 범위에서 벗어난 경우에는 공극률이 높아 포장재의 강도가 떨어지게 된다. In the present invention, circulating aggregate refers to recycled aggregate produced from waste concrete. Like conventional aggregate used for road pavement, recycled aggregates are also mixed to meet specific ratios by particle size. If the ratio is out of an appropriate range, the porosity is high and the strength of the pavement falls.
본 발명에서 사용하는 순환골재는 입도 0.08mm이하의 미분을 포함하고 있으나. 이와 같이 입도가 작은 미분의 경우, 통상적인 운반이나 혼합과정에서 쉽게 비산되어 버리므로, 미분을 비율에 맞춰 혼합해 놓았다 하더라도, 실제 사용시에는 미분이 제외되어 있는 골재를 사용하게 된다. 따라서, 순환골재에 적절한 수분을 공급하여 운반이나 혼합과정 중의 비산을 방지함으로써 정확한 규격을 유지해주는 것이 바람직하며, 적절한 수분을 함유하는 골재는 건조된 상태의 골재에 비하여 다짐률도 높아 강도향상에 도움을 줄 수 있다. 본 발명에서는 통상의 물과 계면활성제를 혼합한 혼합액을 첨가하여 비산을 방지한다. Circulating aggregate used in the present invention includes a fine particle of less than 0.08mm particle size. In the case of fine particles having such a small particle size, the fine particles are easily scattered during the normal transportation or mixing process, and even though the fine powders are mixed in proportion, the aggregates are excluded in actual use. Therefore, it is desirable to maintain accurate specifications by supplying proper moisture to circulating aggregates to prevent scattering during transportation or mixing. Aggregates containing adequate moisture have a higher compaction rate compared to dry aggregates, which helps improve strength. Can give 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 순환골재에 첨가하여 혼합한 결과, 순환골재 100중량부당 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 had weak acidity, and when it was added to circulating aggregates and mixed, 5 parts by weight of 100 aggregates of circulating aggregate was found to have a neutral pH of 7.2. This 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 순환골재에 혼합함으로써 강염기성 침출수를 중화시켜 유출수로 인한 환경파괴를 방지하는 역할은 물론, 공극율을 낮추어 순환골재의 강도를 증가시킨다. 본 발명에 있어서, 이암토가 너무 많거나 적게 혼합되면 적정 수준의 pH를 내지 못하여 중화효과가 떨어지므로 순환 골재 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 aggregates to prevent environmental destruction due to effluents, as well as lowering porosity to increase strength of circulating 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 circulating aggregate.
본 발명의 가공순환골재 조성물은 pH가 낮은 광물인 이암토와 미립자의 비산을 방지하기 위하여 물과 계면활성제를 사용하는 점에 특징이 있으며, 추가로 소포제나 비산방지제를 포함할 수 있다. The processing circulating aggregate composition of the present invention is characterized in that water and a surfactant are used to prevent the scattering of mineral rock and fine particles, which are low pH minerals, and may further include an antifoaming agent or an anti-scattering agent.
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 순환골재의 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 too little surfactant is mixed, the effect of preventing the scattering of fine powder is inferior, if too much mixing may cause bubbles to lower the porosity of the circulating aggregate, 2 to 100 parts by weight of water It is preferable to mix in 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 포장재의 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 the amount is too small or too large, the addition effect may be inferior, uniform dispersion may be difficult, or the physical properties of the packaging may be degraded. Therefore, it is preferable to add in 0.01-0.05 weight part with respect to 100 weight part of water.
본 발명의 가공순환골재 조성물은 필요한 입도별로 선별 및 혼합되어 있는 순환골재에 이암토를 첨가한 후, 계면활성제를 포함하는 혼합액을 혼합하는 방법으로 제조한다. 본 발명의 가공순환골재 조성물에 있어서, 혼합액의 혼합비율이 너무 낮으면 비산방지를 비롯한 첨가효과가 떨어지고, 혼합액의 혼합비율이 너무 높으면 추후 혼합될 결합재의 결합을 방해할 수 있으므로, 순환골재 100중량부에 대하여 2~7중량부의 혼합액을 첨가하는 것이 바람직하다.The processed circulating aggregate composition of the present invention is prepared by adding mudstone to circulating aggregate that is selected and mixed for each required particle size, and then mixing the mixed solution containing the surfactant. In the processing circulating aggregate composition of the present invention, if the mixing ratio of the mixed solution is too low, the addition effect including the scattering prevention is reduced, if the mixed ratio of the mixed solution is too high may interfere with the binding of the binder to be mixed later, circulating aggregate 100 weight It is preferable to add 2-7 weight part of mixed liquid with respect to a part.
본 발명에 따른 가공순환골재 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, 포장재의 품질유지를 용이하게 한다. Processed circulating aggregate composition according to the present invention consists of an aqueous solution containing the circulating aggregate and mud soil and surfactant selected and mixed to a specific particle size, to prevent the destruction of the environment due to strong basic effluent, The compaction rate is excellent in content and prevents scattering of fine powder to maintain a stable porosity, thereby facilitating maintaining the quality of the packaging material.
본 발명에 따른 가공순환골재 조성물은 특정 입도로 선별 및 혼합된 순환골재와, 이암토와 계면활성제를 포함하는 수용액으로 이루어진다.Processed circulating aggregate composition according to the present invention consists of a circulating aggregate selected and mixed to a specific particle size, and an aqueous solution containing mud soil and a surfactant.
본 발명에서 순환골재는 도로포장재에 사용하는 통상의 골재와 마찬가지로 입도별로 특정한 비율을 만족시킬 수 있도록 혼합하여 사용하며, 그 비율이 적정 범위에서 벗어난 경우에는 공극률이 높아 포장재의 강도가 떨어지게 된다. 따라서, 본 발명에서도 특정한 입도비율로 혼합되어 있는 규격화된 순환골재를 사용하며, 구체적인 비율은 하기 표 1과 같다. In the present invention, the circulating aggregate is used to mix to satisfy a specific ratio for each particle size as in the conventional aggregate used for road paving, and when the ratio is out of an appropriate range, the porosity is high and the strength of the pavement falls. Therefore, the present invention also uses a standardized recycled aggregate that is mixed at a specific particle size ratio, specific ratios are shown in Table 1 below.
[표 1]TABLE 1
상기 표 1에 나타난 바와 같이, 본 발명에서 사용하는 순환골재는 입도 0.08mm의 미분을 2~10중량% 포함하고 있다. 그러나, 입도가 작은 미분의 경우, 통상적인 운반이나 혼합과정에서 쉽게 비산되어 버리므로, 상기와 같은 혼합비율에 맞추어 미리 혼합한 순환골재를 사용하더라도, 실제 사용시에는 미립자가 제외된 규격에서 벗어난 골재를 사용하게 된다. 따라서, 지나치게 건조된 상태에서는 운반이나 혼합과정 중 정확한 규격을 유지하기가 어려우므로, 적절한 수분을 공급함으로써 비산을 방지해주는 것이 바람직하며, 적절한 수분을 함유하는 골재는 건조된 상태의 골재에 비하여 다짐률도 높아 강도향상에 도움을 줄 수 있다. 본 발명에서는 통상의 물을 대신하여 특정한 혼합액을 사용함으로써 단순한 수분공급의 수단 뿐 아니라 비산방지 및 환경오염방지 효과를 얻는다.As shown in Table 1, the circulating aggregate used in the present invention contains 2 to 10% by weight of fine powder with a particle size of 0.08 mm. However, in the case of fine powder having a small particle size, it is easily scattered during a normal transport or mixing process. Therefore, even if a circulating aggregate premixed in accordance with the above mixing ratio is used, aggregates deviating from the specification excluding the fine particles are not used in actual use. Will be used. Therefore, it is difficult to maintain the correct specifications during transport or mixing in an excessively dry state, it is desirable to prevent scattering by supplying the appropriate moisture, aggregates containing the appropriate moisture compaction rate compared to the aggregate in the dry state It can also help improve strength. In the present invention, by using a specific mixed solution in place of ordinary water, not only means of supplying water but also scattering prevention and pollution prevention effect are obtained.
본 발명의 조성물은 골재 외에도 광물질인 이암토를 포함하고 있다. 이암토는 순환골재가 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 순환골재 100중량부에 대하여 1~10중량부의 범위 내로 혼합하는 것이 바람직하다.The composition of the present invention, in addition to the aggregate contains the mineral Iam soil. Ilamite not only neutralizes strong bases of recycled aggregates, but also increases strength by lowering the porosity of cement. In the present invention, if the amount of mudstone is mixed with 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 based on 100 parts by weight of circulating 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 순환골재의 공극율를 저하시키는 원인이 될 수 있으므로, 계면활성제는 물 100중량부에 대하여 2~7중량부의 범위 내에서 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 to decrease the porosity of the circulating aggregate, so that the surfactant is 100 parts by weight of water. It is preferable to mix within 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 순환골재의 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 an 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 가공순환골재 조성물은 필요한 입도별로 선별 및 혼합되어 있는 순환골재에 이암토를 첨가하여 혼합한 후, 상기 방법으로 제조된 혼합액을 혼합함으로써 제조할 수 있다. 본 발명에 있어서, 혼합액과 순환골재의 혼합비율에 특별한 제한은 없으나, 골재의 다짐률을 높이는 동시에 추후 혼합될 포장재료의 결합을 방해하지 않음으로써 우수한 순환골재를 얻기 위해서는 순환골재 100중량부에 대하여 혼합액 2~7중량부를 혼합하는 것이 바람직하다.The processed circulating aggregate composition of the present invention can be prepared by mixing the mixed liquid prepared by the above method after adding and mixing the mud soil to the circulating aggregate that 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 obtain excellent circulating aggregate by increasing the compaction rate of the aggregate and not interfering with the binding of the packaging material to be mixed later, with respect to 100 parts by weight of the circulating aggregate. It is preferable to mix 2-7 weight part of mixed liquids.
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| KR100239927B1 (en) * | 1998-01-22 | 2000-01-15 | 김헌출 | High-strength lightweight concrete composition using micro powders of mud stone |
| JP2002053355A (en) | 2000-08-08 | 2002-02-19 | Kamei Seito Kk | Production process of granular material for aggregate using waste mud as main raw material |
| KR100423130B1 (en) | 2000-10-31 | 2004-03-18 | 김무한 | A composites for Porous Concrete or Color Porous Concrete with Hwangtoh powder and its a manufacturing method |
| KR100642788B1 (en) * | 2005-03-31 | 2006-11-10 | 홍순주 | Production Method for High Quality Reclaimed Aggregate using Treating Solution |
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| 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 |
| JP2002053355A (en) | 2000-08-08 | 2002-02-19 | Kamei Seito Kk | Production process of granular material for aggregate using waste mud as main raw material |
| KR100423130B1 (en) | 2000-10-31 | 2004-03-18 | 김무한 | A composites for Porous Concrete or Color Porous Concrete with Hwangtoh powder and its a manufacturing method |
| KR100642788B1 (en) * | 2005-03-31 | 2006-11-10 | 홍순주 | Production Method for High Quality Reclaimed Aggregate using Treating Solution |
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| KR102063965B1 (en) * | 2019-05-17 | 2020-01-08 | 주식회사 에코시티 | elastic pavement material using cork chip and construction method of elastic pavement |
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