KR20000030066A - A footway brick using a waste glass and manufacturing method of the same - Google Patents

A footway brick using a waste glass and manufacturing method of the same Download PDF

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Publication number
KR20000030066A
KR20000030066A KR1019990032098A KR19990032098A KR20000030066A KR 20000030066 A KR20000030066 A KR 20000030066A KR 1019990032098 A KR1019990032098 A KR 1019990032098A KR 19990032098 A KR19990032098 A KR 19990032098A KR 20000030066 A KR20000030066 A KR 20000030066A
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South Korea
Prior art keywords
block
waste glass
glass
curing
manufacturing
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KR1019990032098A
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Korean (ko)
Inventor
서정철
Original Assignee
서영철
청인산업개발 주식회사
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Priority to KR1019990032098A priority Critical patent/KR20000030066A/en
Priority to KR2019990015962U priority patent/KR200165087Y1/en
Publication of KR20000030066A publication Critical patent/KR20000030066A/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
    • 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
    • C04B20/02—Treatment
    • C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • 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
    • C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
    • 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
    • E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • 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)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE: A paving block using glass waste is provided which has improved compression strength compared with existing paving block and therefore can reduce curing period drastically. A process for the preparation of said paving block is also provided which, by using glass waste and incinerated materials as raw materials of the paving block, can utilize resources efficiently and protect the natural environment. CONSTITUTION: The paving block is prepared by the process composed of pulverized glass waste in a breaker, blending the pulverized glass having size of 2.5 - 5 mm, cement and an adjuvant additive in a ratio of approximately 7: 2: 1 in a blender, compression molding the blend in a molder into a block, and then curing the block for some period to prepare a block as a finished product.

Description

폐유리를 이용한 보도블럭 및 그 제조방법{ A footway brick using a waste glass and manufacturing method of the same}A sidewalk brick using a waste glass and manufacturing method of the same}

본 발명은 폐유리를 이용한 보도블럭 및 그 제조방법에 관한 것으로, 특히 폐유리를 블럭의 혼합재료와 함께 섞어 성형제작한 폐유리를 이용한 보도블럭 및 그 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sidewalk block using waste glass and a method of manufacturing the same, and more particularly, to a sidewalk block using waste glass and a method of manufacturing the same.

일반적으로, 보도블럭은 시멘트와 모래를 적당한 비율로 배합한 모르타르를 원재로로 하여 형틀에서 성형하고 건조시켜 제조된다.Generally, the sidewalk block is manufactured by molding and drying in a mold by using mortar containing cement and sand in an appropriate ratio as a raw material.

기존 보도블럭은, 시멘트와 모래를 섞은 모르타르를 일정형틀에서 성형하고, 성형한 제품을 일정강도를 갖도록 양생과정을 거치게 되는데, 긴 양생과정에 따른 완제품의 보도블럭 제작시간이 늘어나게 되었고, 또한 기존의 보도블럭은 강도가 약하여 외부충격에 의해 부서지는 문제점을 지지고 있었다.Existing sidewalk block, the mortar mixed with cement and sand is molded in a certain mold, and the molded product undergoes a curing process to have a certain strength, which increases the production time of the finished sidewalk block according to the long curing process, and also The sidewalk block was weak and was supporting the problem of being broken by external shock.

한편, 기존의 보도블럭은 자연물을 그대로 이용하는 것에 불과하여 자연을 훼손시키거나 고갈시키는 한 원인이 되었다.On the other hand, the existing sidewalk block is not only to use the natural matter as it was a cause to damage or exhaust the nature.

이에 본 발명은 상기한 기존의 보도블럭이 지닌 문제점을 해소하기 위해 안출된 것으로, 폐유리와 다수의 배합재료를 섞어서 보도블럭을 제작함으로써 블럭의 혼합재료들 중에서 많은 부분을 차지하는 산업용 폐기물인 폐유리와 소각재를 유용하게 자원 재활용할 수 있도록 한 폐유리를 이용한 보도블럭 및 그 제조방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the problems of the conventional sidewalk block described above, by producing a sidewalk block by mixing the waste glass and a plurality of compound materials waste glass which is an industrial waste that occupies a large part of the mixed material of the block. The purpose of the present invention is to provide a sidewalk block using waste glass and a method of manufacturing the same, which enables the recycling of waste and incineration materials.

본 발명의 다른 목적은, 폐유리와 다수의 혼합재료를 섞어서 성형제작함으로써 기존보도블럭에 비해 압축강도가 보다 향상되고, 양생과정이 단축되어 짧은 시간내에 완제품의 보도블럭을 제작할 수 있는 폐유리를 이용한 보도블럭 및 그 제조방법을 제공하는데 있다.Another object of the present invention, by mixing the waste glass and a plurality of mixed materials to form a molded product compared to the existing press block to improve the compressive strength, the curing process is shortened waste glass which can produce the finished product press block in a short time The present invention provides a press block and a method of manufacturing the same.

상기한 목적을 달성하기 위해 본 발명은, 2.5∼5㎜ 정도 크기로 파쇄된 폐유리 분말, 시멘트 및 보조첨가제가 대략 7 : 2 : 1 비율로 이루어진 혼합재료를 압축성형, 양생하여 제조된 폐유리를 이용한 보도블럭을 제공한다.In order to achieve the above object, the present invention, waste glass powder, cement and auxiliary additives crushed to a size of about 2.5 to 5 mm produced by compression molding, curing the mixed material consisting of approximately 7: 2: 1 ratio Provides a press block using.

또한, 본 발명은 폐유리를 파쇄기에서 파쇄하는 파쇄단계와, 상기 파쇄한 2.5∼5㎜ 정도 크기의 폐유리를 선별하는 선별단계, 상기 선별한 파쇄유리를 시멘트와 보조첨가제와 함께 약 7 : 2 : 1 비율로 넣어서 혼합기에서 교반하는 교반단계, 상기 교반된 재료혼합물을 성형기에서 일정압으로 성형하는 성형단계 및, 상기 성형단계을 거친 블럭을 건조시켜 완제품을 생산하는 양생단계를 포함한 폐유리를 이용한 보도블럭 제조방법을 제공한다.In addition, the present invention is a crushing step of crushing the waste glass in the crusher, the sorting step of sorting the crushed waste glass of about 2.5 ~ 5mm size, the selected crushed glass with cement and auxiliary additives about 7: 2 : Pressing using waste glass including a stirring step of mixing in a mixer by mixing at a ratio, a molding step of molding the stirred material mixture at a constant pressure in a molding machine, and a curing step of drying the blocks subjected to the molding step to produce a finished product. It provides a block manufacturing method.

이와 같은 본 발명에 따른 폐유리를 이용한 보도블럭 및 보도블럭제조방법에 의하면, 산업폐기물인 폐유리와 소각제를 보도블럭의 재료로 사용하여 자연물을 그대로 이용하지 않으므로써 자연보호와 함께 자원을 효율적으로 활용할 수 있다. 또한, 본 발명으로 제조된 보도블럭은 기존의 보도블럭에 비해 압축강도가 향상되고, 성형된 보도블럭의 양생기간을 줄여서 완제품의 보도블럭을 제작하는데 걸리는 시간을 대폭적으로 단축할 수 있다.According to the method of manufacturing the sidewalk block and sidewalk block using the waste glass according to the present invention, by using waste glass and incinerator as industrial waste as the material of the sidewalk block, natural resources are not used as it is and resources are effectively used. Can be used as In addition, the press block produced according to the present invention can improve the compressive strength compared to the conventional press block, it is possible to significantly shorten the time taken to produce the press block of the finished product by reducing the curing period of the molded press block.

도 1은 본 발명에 따른 폐유리를 이용한 보도블럭의 공정도이다.1 is a process chart of the sidewalk block using the waste glass according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 공급호퍼 20 : 파쇄기10: supply hopper 20: crusher

30 : 원료호퍼 40 : 혼합기30: raw material hopper 40: mixer

50 : 성형기50: molding machine

이하, 본 발명의 바람직한 실시예를 첨부한 예시도면에 따라 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1은 본 발명에 따른 폐유리를 이용한 보도블럭의 공정도이다.1 is a process chart of the sidewalk block using the waste glass according to the present invention.

본 발명에 따른 폐유리를 이용한 보도블럭을 제조하는 과정은 도 1에 도시된 바와 같이, 폐유리를 파쇄하는 파쇄단계과, 폐유리를 선별하는 선별단계, 선별된 파쇄유리와 재료혼합물을 교반하는 교반단계, 재료혼합물을 성형하는 성형단계, 및 성형된 보도블럭을 양생하는 양생단계로 이루어져 있다.As shown in FIG. 1, the process of manufacturing the sidewalk block using the waste glass according to the present invention includes a shredding step of crushing the waste glass, a sorting step of sorting the waste glass, and stirring the selected crushed glass and the material mixture. Step, a molding step of molding the material mixture, and a curing step of curing the molded sidewalk block.

상기 파쇄단계에서는 폐유리를 공급호퍼(10)를 통해 폐유리를 공급하고, 공급된 폐유리를 파쇄기(20)에서 파쇄한다.In the shredding step, the waste glass is supplied through the feed hopper 10, and the supplied waste glass is shredded in the shredder 20.

상기 선별단계에서는 폐유리를 파쇄한 입자크기를 0∼2.5㎜, 2.5∼5㎜ 및, 5㎜ 이상 및 이물질을 선별한다. 본 발명의 보도블럭제조에 사용되는 폐유리는 2.5∼5㎜ 크기의 것을 사용한다. 상기 입자크기가 0∼2.5㎜인 폐유리는 인도에 보도블럭을 시공할 때 사용한다. 한편, 상기 5㎜이상의 폐유리는 재파쇄하여 사용하며, 이물질은 걸러서 폐기한다.In the sorting step, the particle size of the waste glass crushed is selected from 0 to 2.5 mm, 2.5 to 5 mm, and 5 mm or more and foreign matter. The waste glass used in the manufacture of the sidewalk block of the present invention uses a size of 2.5 to 5 mm. The waste glass having a particle size of 0 to 2.5 mm is used when constructing a sidewalk block in India. On the other hand, the waste glass of 5mm or more is used by re-crushing, the foreign matter is filtered off and discarded.

상기 교반단계에서는 원료호퍼(30)를 통해 일정량으로 계량된 입자크기가 2.5∼5㎜인 폐유리분말이 혼합기(40)로 들어오고, 본 발명의 보도블럭제조에 필요한 재료인 시멘트, 소각제, 물, 경화제, 안료, 혼화제가 각각 상기 혼합기(40)에 들어오게 된다. 여기서, 상기 혼합기(40)는 CM-100G 횡축식혼합기를 사용하고 있고, 혼합기(40)에 들어오는 재료 각각은 계량기를 통해 일정량만큼 계량되어 들어오도록 되어 있다. 상기 혼합기(40)에 유입되는 재료는, 폐유리 70톤, 시멘트 20톤 및 보조첨가제 10톤이다. 여기서, 보조첨가제는 소각제 5톤, 물 3톤, 경화제 1톤, 안료 0.5톤, 혼화제 0.5톤이다. 즉 본 발명의 보도블럭제조 재료는 폐유리 70％, 시멘트 20％, 소각제 5％, 물 3％, 경화제 1％, 안료 0.5％, 혼화제 0.5％의 비율로 혼합기(40)에서 교반되게 된다. 상기 소각제는 폐유리와 마찬가지로 폐기물을 처리하여 자원을 보호하는 측면과 자원을 재활용하는 측면에서 재료로 사용하고 있다. 그리고, 상기 경화제는 에폭시수지를 사용하고, 안료는 분말페인트를 사용하며, 혼화제는 ARC(Aramid reinforced cement)액을 사용하고 있다.In the stirring step, the waste glass powder having a particle size of 2.5 to 5 mm measured in a predetermined amount through the raw material hopper 30 is introduced into the mixer 40, and cement, incinerator, which is a material necessary for manufacturing the sidewalk block of the present invention. Water, a curing agent, a pigment, and a admixture enter each of the mixers 40. Here, the mixer 40 uses a CM-100G transverse mixer, and each material entering the mixer 40 is metered in by a predetermined amount through a meter. The material flowing into the mixer 40 is 70 tons of waste glass, 20 tons of cement and 10 tons of auxiliary additives. Here, the auxiliary additive is 5 tons of incinerator, 3 tons of water, 1 ton of hardener, 0.5 ton of pigment, and 0.5 ton of admixture. In other words, the press block manufacturing material of the present invention is stirred in the mixer 40 at the ratio of waste glass 70%, cement 20%, incinerator 5%, water 3%, curing agent 1%, pigment 0.5%, admixture 0.5%. Like waste glass, the incinerator is used as a material in terms of protecting resources by recycling waste and recycling resources. In addition, the curing agent is an epoxy resin, the pigment is a powder paint, the admixture is an ARC (Aramid reinforced cement) solution.

상기 성형단계에서는 교반된 재료는 성형기(50)에서 일정한 압으로 압축성형된다. 여기서, 상기 성형기(50)는 CF-30 성형기를 사용하고 있고, 성형기(50)에서 1회 성형되는 보도블럭은 6장이다.In the forming step, the stirred material is compression molded at a constant pressure in the molding machine 50. Here, the molding machine 50 uses a CF-30 molding machine, and six press blocks are molded once in the molding machine 50.

상기 양생단계에서는 성형단계를 거친 성형된 보도블럭은 컨베이어를 통해 양생실로 이동되어 약 2∼3일정도 양생되게 된다. 여기서, 양생기간을 거친 완제품의 보도블럭은 130∼160 Kgf／㎠ 정도의 압축강도를 지니고 있고, 보도블럭 1장은 3㎏ 정도의 무게를 갖는다.In the curing step, the molded sidewalk block that has undergone the molding step is moved to a curing chamber through a conveyor to be cured for about 2 to 3 days. Here, the press block of the finished product after the curing period has a compressive strength of about 130 ~ 160 Kg f / ㎠, one press block has a weight of about 3kg.

본 발명의 보도블럭 제조공법에 의하면, 산업폐기물인 폐유리와 소각제 등의 혼합재료로 사용하여 제조된 보도블럭은 기존의 보도블럭에 비해 압축강도가 약 1.5배 정도 압축강도가 향상되고, 보도블럭 1장의 무게가 2배정도 되며, 보도블럭의 양생기간이 약 2∼3일 정도 걸리게 되므로 기존 보도블럭의 양생기간 보다 절반으로 줄일 수 있는데 특징이 있다. 그리고, 본 발명에 따른 보도블럭은 입자가 견고하여 표면이 쉽게 손상되지 않는 것은 물론 누수에 따른 피해를 줄일 수 있다. 한편, 본 발명에 따른 보도블럭을 인도에 시공할 때 보도블럭에 함유된 유리에 의해 야광효과를 낼 수 있다.According to the press block manufacturing method of the present invention, the press block manufactured by using a mixed material such as waste glass and incinerator, which is an industrial waste, has a compressive strength of about 1.5 times the compressive strength compared to the existing press block, The weight of one block is about 2 times, and the curing period of the sidewalk block takes about 2 to 3 days, so it can be cut in half than that of the existing sidewalk block. In addition, the sidewalk block according to the present invention can not only easily damage the surface due to the solid particles can reduce the damage caused by leakage. On the other hand, when constructing the sidewalk block according to the invention in India can produce a luminous effect by the glass contained in the sidewalk block.

이상에서 설명한 바와 같은 본 발명에 따른 폐유리를 이용한 보도블럭 및 그 제조방법의 의하면, 산업폐기물인 폐유리와 소각제를 블럭의 혼합재료로 사용하여 자연물을 그대로 이용하지 않으므로써 자연보호하는 측면과 자원을 효율적으로 활용하는 측면에서 유용한 발명이다. 또한, 본 발명으로 제조된 보도블럭은 기존의 보도블럭에 비해 압축강도가 향상되고, 성형된 보도블럭의 양생기간을 대폭적으로 줄여서 완제품의 보도블럭을 제작하는데 걸리는 시간을 단축함으로써 보도블럭의 상품성을 향상시킬 수 있다.According to the present invention, a sidewalk block using waste glass and a method of manufacturing the same according to the present invention, by using waste glass and an incinerator as an industrial waste as a mixed material of a block, does not use nature as it is and protects nature. It is a useful invention in terms of efficiently utilizing resources. In addition, the press block manufactured according to the present invention has improved compressive strength compared to the conventional press block, and significantly reduces the curing period of the molded press block, thereby reducing the time required to produce the press block of the finished product. Can be improved.

Claims (2)

2.5∼5㎜ 정도 크기로 파쇄된 폐유리 분말, 시멘트 및 보조첨가제가 대략 7 : 2 : 1 비율로 이루어진 혼합재료를 압축성형, 양생하여 제조된 폐유리를 이용한 보도블럭.A press block using waste glass manufactured by compression molding and curing a mixed material composed of about 7: 2: 1 ratio of crushed waste glass powder, cement, and auxiliary additives having a size of 2.5 to 5 mm. 폐유리를 파쇄기에서 파쇄하는 파쇄단계;Shredding the waste glass in a shredder; 상기 파쇄한 2.5∼5㎜ 정도 크기의 폐유리를 선별하는 선별단계;A sorting step of sorting the broken glass having a size of about 2.5 to 5 mm; 상기 선별한 파쇄유리를 시멘트와 보조첨가제와 함께 약 7 : 2 : 1 비율로 넣어서 혼합기에서 교반하는 교반단계;Stirring the selected crushed glass with cement and auxiliary additives in a ratio of about 7: 2: 1 and stirring in a mixer; 상기 교반된 재료혼합물을 성형기에서 일정압으로 성형하는 성형단계; 및Molding the stirred material mixture at a constant pressure in a molding machine; And 상기 성형단계을 거친 블럭을 건조시켜 완제품을 생산하는 양생단계;를 포함한 폐유리를 이용한 보도블럭 제조방법.Press block manufacturing method using the waste glass, including; curing step of drying the block after the molding step to produce a finished product.
KR1019990032098A 1999-08-05 1999-08-05 A footway brick using a waste glass and manufacturing method of the same KR20000030066A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020030067A (en) * 2002-04-04 2002-04-22 김동성 A decoration block and method for manufacturing of it
KR100791960B1 (en) * 2005-11-14 2008-01-21 주식회사 정우 Lamination block and lamination process
AU2019201262B2 (en) * 2012-06-14 2020-07-09 Island Block & Paving Pty Ltd Bricks, blocks, and pavers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010148245A2 (en) * 2009-06-17 2010-12-23 Melvin Scott Mccombs Architectural stone composition and method of use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020030067A (en) * 2002-04-04 2002-04-22 김동성 A decoration block and method for manufacturing of it
KR100791960B1 (en) * 2005-11-14 2008-01-21 주식회사 정우 Lamination block and lamination process
AU2019201262B2 (en) * 2012-06-14 2020-07-09 Island Block & Paving Pty Ltd Bricks, blocks, and pavers

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