KR102006786B1 - Coating aggregate and construction method thereof - Google Patents

Coating aggregate and construction method thereof Download PDF

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Publication number
KR102006786B1
KR102006786B1 KR1020180157305A KR20180157305A KR102006786B1 KR 102006786 B1 KR102006786 B1 KR 102006786B1 KR 1020180157305 A KR1020180157305 A KR 1020180157305A KR 20180157305 A KR20180157305 A KR 20180157305A KR 102006786 B1 KR102006786 B1 KR 102006786B1
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South Korea
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aggregate
coating
weight
layer
masato
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KR1020180157305A
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Korean (ko)
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김주용
민상식
민진호
김홍기
김준형
유재석
민병윤
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(주)거우에스앤씨
민병윤
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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
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/14—Minerals of vulcanic origin
    • 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
    • C04B20/10—Coating or impregnating
    • C04B20/1018—Coating or impregnating with organic materials
    • C04B20/1029—Macromolecular compounds
    • C04B20/1033—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Inorganic Chemistry (AREA)
  • Road Paving Structures (AREA)

Abstract

A coating aggregate for laying of the present invention comprises: 20-40 wt% of volcanic stone; and 60-80 wt% of Masato. In order to secure air permeability of the aggregate (20) mixed with volcanic stone and Masato, to maximize air purification function, and to suppress scattering dust, a coating layer (11) is formed on a surface by a coating solution (10). The aggregate which is previously installed to form a playground contains heavy metals and substances harmful to the human body above the standard. In addition, scattering dust is generated and the aggregate can be swept away on windy days, and drainage performance and ventilation are not good to have difficulties in maintenance. In order to solve the problem, the aggregate of the present invention comprises volcanic stone and Masato, and forms a coating layer (11) on the surface of the aggregate to secure air permeability and adhesion among aggregates. Further, the aggregate is excellent in drainage performance and scattering dust suppression performance without containing substances harmful to the human body.

Description

포설용 코팅골재 및 이를 이용한 비산먼지 억제가 가능한 그라운드 시공방법{COATING AGGREGATE AND CONSTRUCTION METHOD THEREOF}Coated aggregate for laying and ground construction method that can suppress scattering dust using same {COATING AGGREGATE AND CONSTRUCTION METHOD THEREOF}

본 발명은 건설분야에 관한 것으로서, 상세하게는 생활체육시설에 적합한 포설용 코팅골재 및 이를 이용한 비산먼지 억제가 가능한 그라운드 시공방법에 관한 것이다.The present invention relates to the field of construction, and more particularly, to a coating construction for laying suitable for sports facilities and a ground construction method capable of suppressing scattering dust using the same.

2005년 부터 운동장 조성을 통해 초,중,고등학생의 체육활동을 장려하기 위해, 초,중,고 및 대학의 운동장 시설을 확보하기 위한 지자체의 투자와 노력이 지속되고 있다.Since 2005, the local government has invested and made efforts to secure sports facilities for elementary, middle, high school and university to encourage sports activities for elementary, middle, and high school students by constructing playgrounds.

운동장 조성을 위해 가장 많이 적용된 것이 인조잔디인데, 인조잔디에 대한 안전성 검증 기준이 불분명하여 논란이 계속되고 있다.Artificial turf is the most applied for the construction of the playground. Controversy continues because the safety verification criteria for artificial turf are unclear.

특히, 포설용 골재를 사용하는 경우에는 골재에 중금속 및 인체에 유해한 물질이 기준치 이상으로 포함된 경우가 많아 우려를 낳고 있다.In particular, in the case of using the aggregate for laying, there are many cases in which the aggregate contains heavy metals and substances harmful to the human body above the reference value, causing many concerns.

운동장에 사용되는 골재는 아이들의 건강을 지켜줄 수 있는 안전한 재료여야 한다. 뿐만아니라 유지 관리가 수월하기 위해 통기성, 배수성, 비산먼지 저감성능등이 우수해야 한다.Aggregate used in the playground should be a safe material to protect children's health. In addition, it should be excellent in breathability, drainage, and scattering dust reduction performance for easy maintenance.

본 발명은 통기성능이 우수하고, 골재간의 부착력이 뛰어나며, 인체에 유해한 물질을 포함하지 않으면서, 배수성능과 비산먼지 억제 성능이 우수한 운동장 조성용 코팅골재 및 그 시공방법을 제시한다.The present invention provides a coating composition for the construction of a playground and its construction method which is excellent in breathability, excellent adhesion between aggregates, and does not contain substances harmful to the human body, and has excellent drainage performance and scattering dust suppression performance.

상기 과제의 해결을 위한 본원발명의 포설용 코팅골재는 화산석 20~40중량%; 마사토 60~80중량%;를 포함하되, 상기 화산석과 마사토가 혼합된 골재(20)의 통기성을 확보하고, 공기정화기능을 극대화 하며, 비산먼지를 억제하기 위해, 상기 골재(20)는 코팅용액(10)에 의해 표면에 코팅층(11)이 형성된다.Coated aggregate for laying the present invention for solving the problem is 20 to 40% by weight volcanic stone; Masato 60 to 80% by weight; including, but to ensure the breathability of the aggregate 20 mixed with volcanic stone and Masato, to maximize the air purification function, to suppress the scattering dust, the aggregate 20 is a coating solution The coating layer 11 is formed in the surface by (10).

상기 코팅용액(10)은 물 88~90 중량%; 수용성 PVA 필름 1.2~2.3 중량%; 고분자 폴리머 에멀젼 8.2 ~ 10 중량%;를 포함하는 것이 바람직하다.The coating solution 10 is 88 to 90% by weight of water; 1.2-2.3 wt% of water-soluble PVA film; High molecular polymer emulsion 8.2 to 10% by weight; preferably comprises.

상기 고분자 폴리머 에멀젼은 고분자 폴리머 55~59.6 중량%; 물 40~44.6 중량%; 안정제 및 분산제 0.05 ~ 0.15 중량%; 실리콘 0.1~ 0.3 중량%;을 포함하는 것이 바람직하다.The polymer emulsion is 55 to 59.6% by weight of the polymer polymer; 40-44.6 weight percent of water; Stabilizers and dispersants 0.05-0.15 weight percent; 0.1 to 0.3% by weight of silicon; preferably.

상기 코팅용액(10)은 상기 골재(20)의 중량을 기준으로, 0.07~0.12 중량부가 상기 골재(20)와 혼합되어 상기 골재(20)를 코팅시키는 것이 바람직하다.The coating solution 10 is preferably based on the weight of the aggregate 20, 0.07 ~ 0.12 parts by weight is mixed with the aggregate 20 to coat the aggregate 20.

믹싱장치에서 상기 골재(20)와 상기 코팅용액(10)이 혼합되고, 건조로에서 75~85℃의 온도로 건조되어 상기 골재(20)에 상기 코팅층(11)이 형성되는 것이 바람직하다.In the mixing apparatus, the aggregate 20 and the coating solution 10 are mixed and dried at a temperature of 75 to 85 ° C. in a drying furnace, so that the coating layer 11 is formed on the aggregate 20.

상기 화산석의 조립률은 2.3~2.7 이고, 마사토의 조립률은 3 ~ 3.4인 것이 바람직하다.It is preferable that the granulation rate of the volcanic stone is 2.3 to 2.7, and that of Masato is 3 to 3.4.

상기 코팅층(11)이 형성된 상기 골재(20)의 중량을 기준으로, 0.1~0.2 중량부의 점토가 더 혼합되는 것이 바람직하다.Based on the weight of the aggregate 20 in which the coating layer 11 is formed, it is preferable that 0.1 to 0.2 parts by weight of clay is further mixed.

본 발명의 일 실시 예에 따른 포설용 코팅골재(A)를 이용한 비산먼지 억제가 가능한 그라운드 시공방법은 상기 코팅용액(10)을 준비하는 용액준비단계; 상기 골재(20)를 준비하는 골재준비단계; 상기 코팅용액(10)을 상기 골재(20)와 혼합하여 상기 코팅층(11)을 형성하는 골재코팅단계; 상기 코팅층(11)이 형성된 상기 골재(20)에 상기 점토를 혼합하는 점토혼합단계; 보조기층(1)을 형성하는 보조기층형성단계; 상기 보조기층(1)의 상부에 상기 마사토를 포설하여 기층(2)을 형성하는 기층형성단계; 상기 기층(2)의 상부에 상기 포설용 코팅골재(A)를 포설하고 다짐하여 코팅골재층(3)을 형성하는 코팅골재층 형성단계;를 포함한다.Ground construction method capable of suppressing scattering dust using the coating aggregate for laying (A) according to an embodiment of the present invention comprises a solution preparation step of preparing the coating solution (10); An aggregate preparation step of preparing the aggregate 20; An aggregate coating step of mixing the coating solution 10 with the aggregate 20 to form the coating layer 11; A clay mixing step of mixing the clay on the aggregate 20 in which the coating layer 11 is formed; An auxiliary base layer forming step of forming the auxiliary base layer 1; A base layer forming step of forming the base layer 2 by laying the masato in the upper portion of the auxiliary base layer 1; And a coating aggregate layer forming step of forming a coating aggregate layer 3 by installing and compacting the coating aggregate A for laying on the base layer 2.

본 발명인 코팅골재는 골재의 표면에 코팅층이 형성되어 통기성능이 우수하고, 골재간의 부착력이 뛰어나며, 인체에 유해한 물질을 포함하지 않으면서, 배수성능과 비산먼지 억제 성능이 우수한 장점이 있다.Coating aggregate of the present invention has a coating layer is formed on the surface of the aggregate is excellent in breathability, excellent adhesion between aggregates, and does not contain harmful substances to the human body, has the advantage of excellent drainage performance and scattering dust suppression performance.

도1은 본 발명의 일 실시 예에 따른 골재코팅 단계도
도2는 본 발명의 일 실시 예에 따른 그라운드 측면도
도3은 본 발명의 일 실시 예에 따른 골재 조립률
도4는 본 발명의 일 실시 예에 따른 코팅층이 형성된 골재와 코팅층 형성전의 골재를 비교한 도면
도5는 본 발명의 일 실시 예에 따른 화산석과 마사토의 코팅층전후의 비중
도6은 본 발명의 일 실시 예에 따른 수용성 PVA 필름이 물에 용해된 것을 나타내는 사진
도 7은 본 발명의 실시예에 따른 코팅골재와 일반골재의 비산먼지 측정결과
도 8은 본 발명의 실시예에 따른 코팅골재의 배수성능 시험체 모사도1 is an aggregate coating step according to an embodiment of the present invention
Figure 2 is a ground side view according to an embodiment of the present invention
Figure 3 aggregate assembly rate according to an embodiment of the present invention
Figure 4 is a view comparing the aggregate before the coating layer formed aggregate with the coating layer formed according to an embodiment of the present invention
5 is the specific gravity of the coating layer before and after the volcanic stone and Masato according to an embodiment of the present invention
Figure 6 is a photograph showing that the water-soluble PVA film dissolved in water according to an embodiment of the present invention
7 is a measurement result of the scattering dust of the coated aggregate and the general aggregate according to the embodiment of the present invention
Figure 8 is a simulation of the drainage performance test body of the coated aggregate according to an embodiment of the present invention

본 발명에 따른 포설용 코팅골재 및 이를 이용한 비산먼지 억제가 가능한 그라운드 시공방법의 일 실시 예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일한 도면 번호를 부여하고 이에 대해 중복되는 설명은 생략하기로 한다.An embodiment of a coating aggregate for laying according to the present invention and a ground construction method capable of suppressing scattering dust using the same will be described in detail with reference to the accompanying drawings, and in describing with reference to the accompanying drawings, the same or corresponding components Denotes the same reference numerals and redundant description thereof will be omitted.

또한, 이하 사용되는 제1, 제2 등과 같은 용어는 동일 또는 상응하는 구성 요소들을 구별하기 위한 식별 기호에 불과하며, 동일 또는 상응하는 구성 요소들이 제1, 제2 등의 용어에 의하여 한정되는 것은 아니다.It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.

또한, 결합이라 함은, 각 구성 요소 간의 접촉 관계에 있어, 각 구성 요소 간에 물리적으로 직접 접촉되는 경우만을 뜻하는 것이 아니라, 다른 구성이 각 구성 요소 사이에 개재되어, 그 다른 구성에 구성 요소가 각각 접촉되어 있는 경우까지 포괄하는 개념으로 사용하도록 한다.In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

이하, 첨부도면을 참조하여 포설용 코팅골재 및 이를 이용한 비산먼지 억제가 가능한 그라운드 시공방법에 관하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the coating aggregate for laying and ground construction method that can suppress scattering dust using the same.

본원발명의 포설용 코팅골재는 화산석 20~40중량%; 마사토 60~80중량%;를 포함하되, 화산석과 마사토가 혼합된 골재(20)의 통기성을 확보하고, 공기정화기능을 극대화 하며, 비산먼지를 억제하기 위해 골재(20)는 코팅용액(10)에 의해 표면에 코팅층(11)이 형성된다.Coated aggregate for laying of the present invention is 20 to 40% by weight volcanic stone; Masato 60 to 80% by weight; including, but to ensure breathability of the volcanic stone and Masato mixed aggregate 20, to maximize the air purification function, to suppress the scattering dust aggregate 20 is the coating solution (10) The coating layer 11 is formed on the surface.

운동장 형성을 위해 기존에 포설되었던 골재에는 중금속 및 인체에 유해한 물질이 기준치 이상으로 포함된 경우가 있었다.Aggregates that were previously installed to form a playground contained heavy metals and harmful substances to humans above the standard.

또한, 바람이 거센 날에는 비산 먼지가 발생하고, 유실되는 문제가 있고, 배수성능과 통기성이 좋치않아 유지관리에 많은 어려움이 있어왔다.In addition, scattered dust is generated on the windy day, there is a problem that is lost, there is a lot of difficulties in maintenance due to poor drainage performance and breathability.

이를 해결하기 위해 본원발명은 골재를 화산석과 마사토로 구성하고, 골재의 표면에 코팅층(11)을 형성하여 통기성과 골재간의 부착력을 확보한다.In order to solve this problem, the present invention comprises an aggregate composed of volcanic stone and masato, and forms a coating layer 11 on the surface of the aggregate to secure breathability and adhesion between the aggregates.

아울러, 인체에 유해한 물질을 포함하지 않으면서, 배수성능과 비산먼지 억제 성능이 우수하다.In addition, it is excellent in drainage performance and scattering dust suppression performance without containing substances harmful to the human body.

상기에 기재된 본원발명의 장점은 골재(20)에 코팅된 코팅층(11)에 의해 구현되는데, 코팅용액(10)은 물 88~90 중량%; 수용성 PVA 필름 1.2~2.3 중량%; 고분자 폴리머 에멀젼 8.2 ~ 10 중량%;를 포함하는 것이 바람직하다.Advantages of the present invention described above is implemented by the coating layer 11 coated on the aggregate 20, the coating solution 10 is 88 to 90% by weight of water; 1.2-2.3 wt% of water-soluble PVA film; High molecular polymer emulsion 8.2 to 10% by weight; preferably comprises.

이때, 고분자 폴리머 에멀젼은 고분자 폴리머 55~59.6 중량%; 물 40~44.6 중량%; 안정제 및 분산제 0.05 ~ 0.15 중량%; 실리콘 0.1~ 0.3 중량%;을 포함하는 것이 바람직하다.At this time, the polymer emulsion is 55 to 59.6% by weight of the polymer polymer; 40-44.6 weight percent of water; Stabilizers and dispersants 0.05-0.15 weight percent; 0.1 to 0.3% by weight of silicon; preferably.

골재(20)에 코팅층(11)을 형성하기 위해 골재(20)에 혼합되는 코팅용액(10)은 골재(20)의 중량을 기준으로, 0.07~0.12 중량부가 혼합되는 것이 바람직하다.The coating solution 10 mixed with the aggregate 20 to form the coating layer 11 on the aggregate 20 is preferably 0.07 to 0.12 parts by weight based on the weight of the aggregate 20.

코팅층(11)은 믹싱장치에서 골재(20)와 코팅용액(10)을 혼합하는 단계, 건조로에서 75~85℃의 온도로 코팅용액(10)이 혼합된 골재(20)를 건조하는 단계, 고온으로 가열된 골재(20)를 상온에서 건조시키는 건조단계에 의해 골재(20) 표면에 형성된다.The coating layer 11 is a step of mixing the aggregate 20 and the coating solution 10 in a mixing apparatus, drying the aggregate 20 mixed with the coating solution 10 at a temperature of 75 ~ 85 ℃ in a drying furnace, high temperature It is formed on the surface of the aggregate 20 by a drying step of drying the heated aggregate 20 at room temperature.

도 1은 골재의 코팅과정을 도시한 것이다.Figure 1 shows the coating process of the aggregate.

화산석의 조립률은 2.3~2.7 이고, 마사토의 조립률은 3 ~ 3.4인 것이 바람직하다.It is preferable that the granulation rate of volcanic stone is 2.3 to 2.7, and that of Masato is 3 to 3.4.

도 3과 같이 화산석과 마사토가 3 : 7의 배합비로 혼합되면 혼합된 골재의 조립률이 2.87 이다. When the volcanic stone and Masato are mixed at a compounding ratio of 3: 7, as shown in FIG. 3, the assembly rate of the mixed aggregate is 2.87.

코팅층(11)이 형성된 골재(20)의 중량을 기준으로, 0.1~0.2 중량부의 점토가 더 혼합되는 것이 바람직하다.Based on the weight of the aggregate 20 in which the coating layer 11 is formed, it is preferable that 0.1 to 0.2 parts by weight of clay is further mixed.

점토를 골재(20)에 혼합하는 것은 다짐률을 확보하기 위한 것으로서, 코팅골재(A)의 시공시 안정적인 다짐상태를 확보하기 위함이다.Mixing the clay in the aggregate 20 is to ensure the compaction rate, to ensure a stable compaction state during the construction of the coating aggregate (A).

본 발명의 일 실시 예에 따른 포설용 코팅골재(A)를 이용한 비산먼지 억제가 가능한 그라운드 시공방법은 코팅용액(10)을 준비하는 용액준비단계; 골재(20)를 준비하는 골재준비단계; 코팅용액(10)을 골재(20)와 혼합하여 코팅층(11)을 형성하는 골재코팅단계; 코팅층(11)이 형성된 골재(20)에 점토를 혼합하는 점토혼합단계; 보조기층(1)을 형성하는 보조기층형성단계; 보조기층(1)의 상부에 마사토를 포설하여 기층(2)을 형성하는 기층형성단계; 기층(2)의 상부에 포설용 코팅골재(A)를 포설하고 다짐하여 코팅골재층(3)을 형성하는 코팅골재층 형성단계;를 포함한다.Ground construction method capable of suppressing scattering dust using a coating aggregate for laying (A) according to an embodiment of the present invention comprises a solution preparation step of preparing a coating solution (10); Aggregate preparation step of preparing the aggregate 20; An aggregate coating step of forming a coating layer 11 by mixing the coating solution 10 with the aggregate 20; A clay mixing step of mixing clay in the aggregate 20 on which the coating layer 11 is formed; An auxiliary base layer forming step of forming the auxiliary base layer 1; A base layer forming step of forming a base layer 2 by installing masato on an upper portion of the auxiliary base layer 1; It includes; coating aggregate layer forming step of laying the coating aggregate (A) for laying on top of the base layer (2) to form a coating aggregate layer (3).

이 경우, 점토는 골재(20)에 코팅층(11)이 형성된 이후에 혼합된다. 이를 통해 골재(20)의 배수성능과 비산먼지 억제 성능을 유지하면서, 다짐률을 확보할 수 있다.In this case, the clay is mixed after the coating layer 11 is formed on the aggregate 20. Through this, it is possible to secure the compaction rate while maintaining the drainage performance and scattering dust suppression performance of the aggregate (20).

코팅골재층(3)은 기층(2) 높이의 1.5~2로 형성되는 것이 바람직한데, 보조기층(1), 기층(2), 코팅골재층(3)의 모식도는 도2와 같다.Coating aggregate layer 3 is preferably formed in the height of the base layer 2, 1.5 ~ 2, the schematic diagram of the auxiliary base layer 1, the base layer 2, the coating aggregate layer (3) is as shown in FIG.

도 7은 코팅골재의 비산먼지의 억제성능 시험결과로서, 비교예는 일반골재에 대한 비산먼지 발생 결과이고, 실시예 1은 골재중량 기준으로 7%의 코팅용액(1)이 골재에 혼합된 코팅골재, 실시예 2는 10%, 실시예 3은 12%의 코팅용액(1)이 혼합된 코팅골재의 비산먼지 발생결과를 나타낸 것이다.Figure 7 is a test result of the suppression performance of the scattering dust of the coating aggregate, Comparative Example is the result of scattering dust for the general aggregate, Example 1 is a coating in which 7% of the coating solution (1) mixed on the aggregate weight basis Aggregate, Example 2 is 10%, Example 3 shows the scattering dust generation results of the coating aggregate mixed 12% of the coating solution (1).

도 7과 같이 코팅용액(1)의 혼입률이 증가할 수록 비산먼지 발생이 억제되는 것을 확인할 수 있다. As shown in FIG. 7, as the mixing ratio of the coating solution 1 increases, scattering dust is suppressed.

특히 일반골재대비 초기 비산먼지의 발생정도를 약 3배 이상 줄일 수 있는 것으로 확인되었다. In particular, it was found that the generation of early scattering dust can be reduced by about three times compared to general aggregates.

아울러, 도8과 같은 시험체를 제작하여 배수성능을 확인하였다.In addition, the test body as shown in Figure 8 was produced to confirm the drainage performance.

시험체는 보조기층을 150mm, 기층을 50mm로 형성하였고, 코팅골재층(3)을 100mm로 형성하였다.The test body was formed with an auxiliary base layer 150mm, a base layer 50mm, a coating aggregate layer (3) was formed to 100mm.

시험은 투수계수 시험으로 진행하였으며, 그 결과는 아래 표 1에 나타내었다.The test was conducted with a permeability coefficient test, and the results are shown in Table 1 below.

Figure 112018123021923-pat00001
Figure 112018123021923-pat00001

표 1에서와 같이 일반골재를 사용한 경우의 투수계수는 0.046(cm/s), 실시예 1의 투수계수는 0.048(cm/s), 실시예 2의 투수계수는 0.05(cm/s), 실시예 3의 투수계수는 0.06(cm/s)으로 투수성이 비교예보다 우수한 것을 확인하였다.As shown in Table 1, the permeability coefficient of 0.046 (cm / s) when using the general aggregate, the permeability coefficient of Example 1 was 0.048 (cm / s), the permeability coefficient of Example 2 was 0.05 (cm / s), and The permeability coefficient of Example 3 was 0.06 (cm / s), and it was confirmed that the permeability was superior to the comparative example.

1 : 보조기층 2 : 기층
3 : 코팅골재층 10 : 코팅용액
11 : 코팅층 20 : 골재1: subbase 2: base
3: coating aggregate layer 10: coating solution
11: coating layer 20: aggregate

Claims (8)

화산석 20~40중량%;
마사토 60~80중량%;를 포함하되
상기 화산석과 마사토가 혼합된 골재(20)의 통기성을 확보하고, 공기정화기능을 극대화 하며, 비산먼지를 억제하기 위해,
상기 골재(20)는 코팅용액(10)에 의해 표면에 코팅층(11)이 형성되되,
상기 코팅용액(10)은
물 88~90 중량%;
수용성 PVA 필름 1.2~2.3 중량%;
고분자 폴리머 에멀젼 8.2 ~ 10 중량%;를 포함하고,
상기 고분자 폴리머 에멀젼은
고분자 폴리머 55~59.6 중량%;
물 40~44.6 중량%;
안정제 및 분산제 0.05 ~ 0.15 중량%;
실리콘 0.1~ 0.3 중량%;을 포함하며,
상기 코팅용액(10)은 상기 골재(20)의 중량을 기준으로,
0.07~0.12 중량부가 상기 골재(20)와 혼합되어 상기 골재(20)를 코팅시키고,
믹싱장치에서 상기 골재(20)와 상기 코팅용액(10)이 혼합된 후, 건조로에서 75~85℃의 온도로 건조되어 상기 골재(20)에 상기 코팅층(11)이 형성되며,
상기 화산석의 조립률은 2.3~2.7 이고, 마사토의 조립률은 3 ~ 3.4 이며,
상기 코팅층(11)이 형성된 상기 골재(20)의 중량을 기준으로,
0.1~0.2 중량부의 점토가 더 혼합되는 포설용 코팅골재(A)를 이용한 비산먼지 억제가 가능한 그라운드 시공방법으로서,
상기 코팅용액(10)을 준비하는 용액준비단계;
상기 골재(20)를 준비하는 골재준비단계;
상기 코팅용액(10)을 상기 골재(20)와 혼합하여 상기 코팅층(11)을 형성하는 골재코팅단계;
상기 코팅층(11)이 형성된 상기 골재(20)에 상기 점토를 혼합하는 점토혼합단계;
보조기층(1)을 형성하는 보조기층형성단계;
상기 보조기층(1)의 상부에 상기 마사토를 포설하여 기층(2)을 형성하는 기층형성단계;
상기 기층(2)의 상부에 상기 포설용 코팅골재(A)를 포설하고 다짐하여 코팅골재층(3)을 형성하는 코팅골재층 형성단계;를 포함하는 것을 특징으로 하는 비산먼지 억제가 가능한 그라운드 시공방법.20-40% by weight of volcanic stone;
Masato 60-80% by weight; including
In order to secure the air permeability of the aggregate 20 mixed with the volcanic stone and Masato, to maximize the air purification function, to suppress the scattering dust,
The aggregate 20 is a coating layer 11 is formed on the surface by the coating solution 10,
The coating solution 10
Water 88-90 wt%;
1.2-2.3 wt% of water-soluble PVA film;
High molecular polymer emulsion 8.2 to 10% by weight;
The polymer emulsion is
55-59.6 weight percent of a polymer polymer;
40-44.6 weight percent of water;
Stabilizers and dispersants 0.05-0.15 weight percent;
0.1 to 0.3 wt% of silicon;
The coating solution 10 is based on the weight of the aggregate 20,
0.07 ~ 0.12 parts by weight is mixed with the aggregate 20 to coat the aggregate 20,
After the aggregate 20 and the coating solution 10 are mixed in a mixing apparatus, the coating layer 11 is formed on the aggregate 20 by drying at a temperature of 75 to 85 ° C. in a drying furnace.
Assembly rate of the volcanic stone is 2.3 ~ 2.7, Masato assembly rate is 3 ~ 3.4,
Based on the weight of the aggregate 20 in which the coating layer 11 is formed,
As a ground construction method which can suppress the scattering dust using the coating aggregate for laying (A) in which 0.1 to 0.2 parts by weight of clay is further mixed,
A solution preparation step of preparing the coating solution 10;
An aggregate preparation step of preparing the aggregate 20;
An aggregate coating step of mixing the coating solution 10 with the aggregate 20 to form the coating layer 11;
A clay mixing step of mixing the clay on the aggregate 20 in which the coating layer 11 is formed;
An auxiliary base layer forming step of forming the auxiliary base layer 1;
A base layer forming step of forming the base layer 2 by laying the masato in the upper portion of the auxiliary base layer 1;
Coating construction layer forming step of laying the coating aggregate (A) for laying on top of the base layer (2) to form a coating aggregate layer (3); Way. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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