KR19980065056A - Manufacturing method of base material for pavement using waste gypsum - Google Patents

Manufacturing method of base material for pavement using waste gypsum Download PDF

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Publication number
KR19980065056A
KR19980065056A KR1019980023295A KR19980023295A KR19980065056A KR 19980065056 A KR19980065056 A KR 19980065056A KR 1019980023295 A KR1019980023295 A KR 1019980023295A KR 19980023295 A KR19980023295 A KR 19980023295A KR 19980065056 A KR19980065056 A KR 19980065056A
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KR
South Korea
Prior art keywords
base material
pavement
waste gypsum
manufacturing
clay
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KR1019980023295A
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Korean (ko)
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KR100300291B1 (en
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유만무
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유만무
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Priority to KR1019980023295A priority Critical patent/KR100300291B1/en
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Publication of KR100300291B1 publication Critical patent/KR100300291B1/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
    • C04B18/04—Waste materials; Refuse
    • C04B18/0445—Synthetic gypsum, e.g. phosphogypsum
    • 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
    • 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

Abstract

본 발명은 폐석고를 이용한 포장도로용 기층 재의 제조방법에 관한 것으로 특히, 페인트 원료로 사용되는 티타늄 제조 과정에서 생성되는 무기성 오니 폐기물인 폐석고를 이용하여 시공 안정성이 우수한 포장도로용 기층 재로 재활용 될 수 있도록 한 것이다.The present invention relates to a method of manufacturing a base material for pavement using waste gypsum, in particular, can be recycled as a base material for pavement excellent in construction stability using waste gypsum, an inorganic sludge waste produced in the manufacturing process of titanium used as a paint raw material. It would be.

종래의 포장도로는 자갈을 깔고 마사토와 굵은 모래로 기층 재를 형성하여 그 위에 아스팔트를 포장하였으나 기층 재의 상호 응결력이 없어 지반이 단단하게 시공되지 못하는 경우 들떠버리는 현상이 발생하여 포장도로 수명이 짧아지게 되며 장마비 등에 의하여 기층재가 쉽게 씻겨 빠져나가게 됨으로 도로가 유실되는 경우가 많았던 것이다. 또한 폐석고는 환경오염물질로서 폐기 처분에 많은 비용이 소요되는 되는 문제점이 있었다.Conventional pavement paved with gravel and formed a base material with masato and coarse sand to pave asphalt thereon. The road was often lost because the base material was easily washed away due to rainy season. In addition, waste gypsum has a problem in that it takes a high cost for disposal as environmental pollutants.

본 발명은 이와 같은 문제점을 해결하기 위하여 안출된 것으로 페인트 재료인 티타늄 제조 과정에서 불가분 발생되는 환경오염 물질인 폐석고를 이용하여 성능이 우수한 포장도로용 기층 재로 재 사용될 수 있도록 함으로서 환경오염의 방지와 포장도로의 안정된 기층재 시공이 가능토록 한 것이다.The present invention has been made in order to solve such a problem, by using waste gypsum, which is an environmental pollutant that is indispensable in the manufacturing process of titanium, which is a paint material, it can be reused as a base material for pavement with excellent performance. It is possible to construct stable base material of road.

Description

폐석고를 이용한 포장도로용 기층 재의 제조방법Manufacturing method of base material for pavement using waste gypsum

본 발명은 폐석고를 이용한 포장도로용 기층 재의 제조방법에 관한 것으로 특히, 페인트 원료로 사용되는 티타늄 제조 과정에서 생성되는 무기성 오니 폐기물인 폐석고를 이용하여 시공 안정성이 우수한 포장도로용 기층 재로 재활용 될 수 있도록 한 것이다.The present invention relates to a method of manufacturing a base material for pavement using waste gypsum, in particular, can be recycled as a base material for pavement excellent in construction stability using waste gypsum, an inorganic sludge waste produced in the manufacturing process of titanium used as a paint raw material. It would be.

통상 포장도로를 새로 시공하는 경우에는 도 2에 도시된 바와 같이 중장비를 이용하여 먼저 도로를 평평한 상태로 만들어 다지고 그 위에 기층 재인 자갈(4)과 마사토(3) 및 굵은 모래(2)를 깔아 다진 다음 표증에 아스팔트(1)를 포장하여 시공함이 통례인바, 기층 재들은 상호 응결력이 없어 지반이 단단하게 시공되지 못하는 경우 들떠버리는 현상이 발생하여 포장도로 수명이 짧아지게 되며 장마비 등에 의하여 기층재가 쉽게 씻겨 빠져나가게 됨으로 도로가 유실되는 경우가 많았던 것이다.When a new pavement is normally constructed, as shown in FIG. 2, the road is first flattened using heavy equipment, and the base material is crushed with gravel (4), masato (3) and coarse sand (2). As the construction of paving asphalt (1) on the following mark is customary, the base materials have no mutual cohesion and the ground can not be firmly built up so that the life of the pavement is shortened and the life of the pavement is shortened. The roads were often lost because they were washed away.

본 발명은 이와 같은 문제점을 해결하는 동시에 티타늄 제조 과정에서 불가분 발생되는 환경오염 물질인 폐석고를 이용하여 성능이 우수한 포장도로용 기층 재로 재 사용될 수 있도록 함으로서 환경오염의 방지와 포장도로의 안정된 기층재 시공이 가능토록 한 것이다.The present invention solves these problems and at the same time by using waste gypsum, an environmental pollutant that is indispensable in the manufacturing process of titanium, it can be used as a base material for pavement with excellent performance, thereby preventing environmental pollution and constructing a stable base material for pavement. This is possible.

도 1 - 본 발명에 따른 도로 기층 재를 포장도로에 적용시킨 상태의 예시 단 면도Fig. 1-Example of a state in which a road substrate is applied to a pavement according to the present invention

도 2 - 종래 포장도로의 기층 재 적용상태 예시 단면도Figure 2-Example cross-sectional view of the substrate re-application state of the conventional pavement

도면의주요부분에대한부호의설명Explanation of symbols on the main parts of the drawing

1 - 아스팔트 4 - 자갈 5 - 기층 재1-asphalt 4-gravel 5-substrate ash

이하 첨부된 도면 및 실시 예에 따라 본 발명을 상세히 설명하면 다음과 같다. 본 발명 기층 재의 주재료는 폐석고로서 페인트 원료인 티타늄 제조 과정에서 생성되는 강산성수를 알칼리성분인 소석회로 중화시키고 나면 반죽 상태의 점질 재가 생성되는데 1차 생성물은 슬레이트 원료로 사용되며 그후에 남게되는 사용이 불가능한 2차 무기성 폐기물 오니 가 본 발명에서 재활용하고자 하는 폐석고 인 것이다. 이상과 같이 생성된 폐석고를 도로용 기층 재로 제조하는 공정은 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments. The main material of the base material of the present invention is waste gypsum, after neutralizing the strongly acidic water produced in the manufacturing process of titanium, which is a raw material for paint, with alkali-calcined slag, a viscous ash in the form of dough is produced. Primary inorganic waste sludge is the waste gypsum to be recycled in the present invention. The process of producing the waste gypsum produced as described above is based on the road substrate.

1차로, 50%의 폐석고(자체수분함량 20%)를 교반기에서 소석회 7%를 첨가하여 고르게 혼합 한 후 2차로, 교반된 혼합물을 2차, 교반기에서 석분 40%와 점토질 3%를 추가 혼합하여 교반기에서 고속으로 혼합시키게 되면 기층 재로 사용하기 위한 성토 재로 재생처리 된다.First, 50% of waste gypsum (20% of its own water content) is mixed evenly by adding 7% of hydrated lime in a stirrer, and then, secondly, the stirred mixture is further mixed with 40% of stone powder and 3% of clay in a stirrer. When mixed in a stirrer at high speed, it is regenerated into fill material for use as base material.

3차, 재생 처리된 성토 재는 컨베이어 벨트로 운반되어 야적장 위에서 고공 낙하시켜The third, reclaimed fill material is conveyed by conveyor belt and dropped high above the yard.

자동적으로 야적되게 하는데 이 과정에서 재차 혼합 과정이 이루어지게 되고 야적된 성토 재는 자연압력 및 점질 토의 점질 성과 소석회의 응집력의 자연 발생적 효과를 거치면서 수분 7-8%정도의 포장도로용 기층재가 완성되는 것이다.In this process, the mixing process is carried out again, and the piled soil is composed of 7-8% moisture pavement base material through the natural effects of natural pressure and cohesiveness of clay and cohesiveness of slaked clay. will be.

이와 같이 완성된 기층 재는 도 1에서 도시한 바와 같이 미리 닦아 다져놓은 도로 위에 자갈(4)을 깔고 그 위에 기층 재(5)를 깔아 다진 다음 표면에 아스팔트(1)를 도포 하여 포장도로를 시공하게 되는 것이다.As shown in FIG. 1, the completed base material is laid with gravel (4) on the pre-polished road as shown in FIG. 1, the base material (5) is laid thereon, and then asphalt (1) is applied to the surface to construct the pavement. Will be.

이와 같이 제조 시공되는 본 발명은 그냥 버릴 경우 환경을 오염시키게 되며 폐기처분에 많은 비용이 소요되는 폐석고를 이용 재활용함으로서 환경오염 문제를 근본적으로 해결 할 수 있음은 물론 포장도로용 기층 재로 재활용 시공하게 되면 소석회 성분의 응결력에 의하여 기층재가 견고하게 안정성을 갖게 됨으로 도로 시공후 장시간이 지나더라도 표면이 들뜨거나 장마비등에 기층재가 쉽게 유실되는 일이 없게 된다. 특히, 소석회의 성질은 장시간이 지나면 지날수록 자체 양생력에 의하여 더욱더 견고하여 지며 자연 양생되면서 탄탄하고 탄력을 함유한 고형의 기층을 형성하게 되는 것이며 침출수에 의한 제2차 오염 또한 방지할 수 있는 것이다.If the present invention is manufactured and thus discarded, it will pollute the environment, and by recycling the waste gypsum, which is expensive to dispose of, it can fundamentally solve the environmental pollution problem. The base material is firmly stabilized by the coagulation power of the slaked lime component, so that even after a long time after the road construction, the base material is not easily lifted or lost due to the rainy season. Particularly, the characteristics of slaked lime become more robust by its own curing power over a long period of time, and form a solid, elastic, solid base that is cured naturally, and also prevents secondary contamination by leachate. .

또한, 본 발명은 도로 기층재로서 뿐만 아니라, 일반 산업용지, 연약지반, 일반 저지대의 매립지등에 적용하여 지반을 튼튼히 하는데 효과적으로 사용할 수 있는 것이다.In addition, the present invention can be effectively used not only as a road substrate, but also applied to general industrial land, soft ground, landfill of general lowlands, and the like to effectively strengthen the ground.

Claims (1)

포장용 도로의 시공시 표면 아스팔트 아래 기층을 형성하는 기층 재를 제조함에 있어서, 1차로, 50%의 폐석고(자체수분함량 20%)를 교반기에서 소석회 7%를 첨가하여 고르게 혼합 한 후 2차로, 교반된 혼합물을 2차, 교반기에서 석분 40%와 점토질 3%를 추가 혼합하여 교반기에서 고속으로 혼합하고, 3차, 혼합 재생 처리된 성토 재를 컨베이어 벨트로 운반하여 야적장 위에서 고공 낙하시켜 자동적으로 야적되게 함으로서 재차 혼합 과정이 이루어 질 수 있도록 하고 야적된 성토 재는 자연압력 및 점질 토의 점질 성과 소석회의 응집력의 자연 발생적 효과를 거치면서 수분 7-8%정도의 포장도로용 기층 재로 완성함을 특징으로 하는 폐석고를 이용한 포장 도로용 기층 재의 제조 방법.In manufacturing the base material to form the base layer under the surface asphalt during the construction of the pavement road, firstly, 50% of the waste gypsum (20% of its water content) is evenly mixed by adding 7% of slaked lime in the stirrer, and then, secondly, stirring The mixed mixture was mixed at high speed in the stirrer by additionally mixing 40% of the fine powder and 3% of the clay in the stirrer, and the third, mixed reclaimed clay was conveyed to the conveyor belt to be dropped on the yard automatically. To allow the mixing process to be carried out again, and the unfilled fill material is completed as a pavement base material with a moisture content of about 7-8% by going through the naturally occurring effects of natural pressure and cohesiveness of clay and cohesiveness of slaked clay. Method for manufacturing base material for pavement using.
KR1019980023295A 1998-06-20 1998-06-20 Method for manufacturing base materials for pavement using waste gypsum KR100300291B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020043146A (en) * 2000-12-01 2002-06-08 이강주 Color pattern gypsum concrete and construction method thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020043146A (en) * 2000-12-01 2002-06-08 이강주 Color pattern gypsum concrete and construction method thereby

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