KR20020050388A - A method for manufacturing solidification brick - Google Patents

A method for manufacturing solidification brick Download PDF

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KR20020050388A
KR20020050388A KR1020000079524A KR20000079524A KR20020050388A KR 20020050388 A KR20020050388 A KR 20020050388A KR 1020000079524 A KR1020000079524 A KR 1020000079524A KR 20000079524 A KR20000079524 A KR 20000079524A KR 20020050388 A KR20020050388 A KR 20020050388A
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blast furnace
weight
dust
parts
solidified
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KR100609136B1 (en
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김대영
손진군
이재영
이훈하
김병원
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신현준
재단법인 포항산업과학연구원
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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
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • 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
    • C04B28/08—Slag cements
    • 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
    • C04B2103/10—Accelerators; Activators
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE: Provided are solidified bricks with improved compression strength and submersion resistance compared with conventional clay bricks by using alkali promoter. CONSTITUTION: Solidified bricks comprise 100pts.wt. of blast furnace sludge, 30-50pts.wt. of solidifier containing fine blast furnace slag powder having surface area more than 4000cm¬2/g and Portland cement in a weight ratio of 0.25-4.0, and 1-3pts.wt. of alkali promoter selected from steelmaking dust, mini-mill dust and sintered dust. Solidified bricks are manufactured by controlling water content to be the weight ratio of water to solidifier ranging from 0.2-0.5, mixing the above components, compression forming, and curing.

Description

고형화 브릭의 제조방법{A METHOD FOR MANUFACTURING SOLIDIFICATION BRICK}Manufacturing method of solidification brick {A METHOD FOR MANUFACTURING SOLIDIFICATION BRICK}

본 발명은 고형화 브릭을 제조하는 방법에 관한 것이며, 보다 상세하게는 특정한 알칼리촉진제를 사용하여 강도 및 물리화학정 안정성이 우수한 고형화 브릭을 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a solidified brick, and more particularly to a method for producing a solidified brick having excellent strength and physicochemical stability using a specific alkali promoter.

브릭 제조방법에 관하여 대한민국 특허 공개 87-5929호에는 소각회, 석회류, 알루미늄염, 및 탄산소다 염류로 이루어진 고화첨가제를 사용하여 브릭을 제조하는 방법이 그리고 대한민국 특허 공고 97-8689호에는 제강전로 슬래그 분말, 생석회, 및 시멘트 등을 보조 고화재로 사용하여 브릭을 제조하는 방법이 개시되어 있다.Regarding the brick manufacturing method, Korean Patent Publication No. 87-5929 discloses a method of manufacturing a brick using a solidifying additive consisting of incineration ash, lime, aluminum salt, and sodium carbonate salt, and Korean Patent Publication No. 97-8689. A method of making bricks using furnace slag powder, quicklime, cement, and the like as auxiliary solidifying materials is disclosed.

그러나, 이들 방법에서 사용된 고화재는 고가로 비경제적이며 또한 우천시 물을 흡수하여 압축강도를 거의 상실함으로 매립작업자체를 불가능하게 하며, 토목용 브릭으로 사용하기 불가능한 실정이다. 이에 따라, 강도 및 내침수성이 우수한 브릭이 요구된다.However, the fire used in these methods is expensive and uneconomical, and also absorbs water in rainy weather and almost loses the compressive strength, thus making the landfill work impossible, and making it impossible to use it as a civil brick. Accordingly, a brick excellent in strength and immersion resistance is required.

이에, 본 발명의 목적은 특정한 알칼리 촉진제를 사용하여 압축강도 및 내침수성등의 물리화학적 안정성이 우수한 고형화 브릭을 제조하는 방법을 제공하는 것이다.Accordingly, it is an object of the present invention to provide a method for producing a solidified brick having excellent physicochemical stability such as compressive strength and immersion resistance using a specific alkali accelerator.

본 발명에 의하면,According to the invention,

고로슬러지와 고로슬러지 100중량부당 입도가 4000cm2/g 이상인 고로슬래그 분말과 포틀랜드시멘트가 고로슬래그 분말/포틀랜드 시멘트 중량비 0.25- 4.0로 혼합된 고화재 30~50중량부로된 주원료에 제강더스트, 미니밀더스트 및 소결더스트로 부터 선택된 알칼리 촉진제를 상기 고로슬러지 100중량부당 1~3중량부로 첨가한 후, 수분의 양을 조절하고 혼합 및 압축성형한 후 양생하여 고형화 브릭을 제조하는 방법이 제공된다.Blast furnace sludge and blast furnace sludge per 100 parts by weight of particle size of 4000cm 2 / g or more blast furnace slag powder and cement powder is blast furnace slag / cement weight ratio of 0.25- to 4.0 and a mixed fire 30 to 50 weight parts of the main raw material in steel-making dust, dust minimil And adding an alkali promoter selected from the sintered dust to 1 to 3 parts by weight per 100 parts by weight of the blast furnace sludge, and controlling the amount of water, mixing and compression molding, and curing to provide a solidification brick.

이하, 본 발명에 대하여 상세히 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

본 발명에서는 주원료로 고로슬러지와 고화재로 고로슬래그 분말과 일반 포틀랜드시멘트의 혼합물을 사용하고 주원료와의 물성을 고려하여 특정한 알칼리 촉진제를 사용함으로써 고강도 고형화 브릭이 제조된다.In the present invention, a high strength solidification brick is manufactured by using a mixture of blast furnace sludge as a main raw material and a blast furnace slag powder and a general portland cement as a main material and using a specific alkali promoter in consideration of physical properties of the main raw material.

고로슬러지는 산화철, 산화규소, 산화알루미늄 및 산화칼슘등의 다양한 금속산화물뿐만아니라 지구 구성물질에 해당하는 다양한 광물질을 함유함으로 이를 고형화물의 메트릭스로 사용하여 브릭을 제조함으로써 폐자원을 유효하게 활용할 수 있다.The blast furnace sludge contains not only various metal oxides such as iron oxide, silicon oxide, aluminum oxide and calcium oxide, but also various minerals corresponding to the earth's constituents, so that it can effectively utilize waste resources by manufacturing bricks using them as a matrix of solids. .

고화재로는 입도가 4000cm2/g 이상인 고로슬래그 분말과 일반 포틀랜드시멘트의 혼합물이 사용된다. 고화재는 물과의 수화작용에 의해 망상구조의 침상 및 로드상으로된 미세한 결합물인 수화생성물을 형성함으로 강도가 우수한 브릭이 형성된다. 이때, 고로슬래그 분말과 일반 포틀랜드시멘트는 고로슬래그 분말/포틀랜드 시멘트 중량비(이하, '고화재 구성비'라 한다.) 0.25-4.0로 혼합된다. 0.25미만인 경우에는 포틀랜드 시멘트 사용량이 많아져 비경제적이며, 반면에 상기 구성비가 4.0을 초과하는 경우에는 고형화 브릭의 강도발현이 충분하지 않다.As the solidified material, a mixture of blast furnace slag powder having a particle size of 4000 cm 2 / g or more and a general portland cement is used. The solidified material is a brick having excellent strength by forming a hydration product, which is a fine combination of network needles and rods by hydration with water. In this case, the blast furnace slag powder and the general portland cement are mixed at a blast furnace slag powder / portland cement weight ratio (hereinafter, referred to as 'solid fire composition ratio') 0.25-4.0. If it is less than 0.25, the amount of Portland cement used is uneconomical, whereas if the composition ratio exceeds 4.0, the strength expression of the solidified brick is not sufficient.

고로슬래그로는 입도가 4000㎠/g이상인 미분말의 고로슬래그가 사용된다.As the blast furnace slag, fine powder blast furnace slag having a particle size of 4000 cm 2 / g or more is used.

고로슬래그의 비표면적이 클수록 즉, 입도가 작을수록 물과 반응하여 수화생성물을 형성하는 활성화작용이 우수하다. 따라서, 입도가 최소 4000㎠/g인 고로슬래그 미분말이 사용되며 입도가 작을수록 좋으나, 경제성등을 고려하여 입도가 4000㎠/g이상인 고로슬래그 미분말로부터 적절히 선정하여 사용할 수 있다.The larger the specific surface area of the blast furnace slag, that is, the smaller the particle size, the better the activation effect of reacting with water to form a hydration product. Therefore, the blast furnace slag powder having a particle size of at least 4000 cm 2 / g is used, and the smaller the particle size, the better. However, in consideration of economic efficiency, the blast furnace slag fine powder having a particle size of 4000 cm 2 / g or more may be appropriately selected.

상기 고화재는 고로슬래그 100중량부당 30~50중량부로 혼합된다. 고화재 함량이 30중량부 미만인 경우에는 고형화 브릭의 강도발현이 충분히 일어나지 않고, 반면에 50중량부를 초과하는 경우에는 비경제적이기 때문이다.The solidified material is mixed in 30 to 50 parts by weight per 100 parts by weight of blast furnace slag. This is because when the solidified content is less than 30 parts by weight, the strength expression of the solidified brick does not sufficiently occur, whereas when the solidified content exceeds 50 parts by weight, it is uneconomical.

상기 알카리촉진제로는 제강 더스트, 미니밀 더스트 및 소결더스트로 구성되는 그룹으로부터 선택된 1종 또는 2종 이상의 혼합물이 고로슬래그 100중량부당 1~3중량부로 첨가된다.As the alkali promoter, one or two or more mixtures selected from the group consisting of steelmaking dust, mini mill dust, and sintered dust are added in an amount of 1 to 3 parts by weight per 100 parts by weight of blast furnace slag.

브릭형성시 물과 고화재의 수화반응에 의하여 형성되는 고강도의 수화생성물에 의해 강도가 우수한 브릭이 형성된다. 반응초기에는 고강도의 수화생성물이 형성되나, 반응이 진행됨에 따라 수화생성물상에 막이 형성되며 막에 의해 수화반응이 더 이상 진행되지 않는다. 그러나, 본 발명에서는 사용된 알칼리 촉진제에 의해 상기 막이 제거되며, 따라서 수화반응이 지속되어 보다 강고한 브릭이 얻어진다.A brick having excellent strength is formed by the high-strength hydration product formed by the hydration reaction of water and the solidified material during brick formation. In the initial stage of the reaction, a high-strength hydration product is formed, but as the reaction proceeds, a film is formed on the hydration product, and the hydration reaction is no longer performed by the membrane. However, in the present invention, the membrane is removed by the alkali promoter used, so that the hydration reaction is continued to obtain a stronger brick.

상기 알칼리 촉진제는 다양한 금속산화물등을 복합적으로 함유되어 있는 것으로 물과의 가수분해반응에 의해 수산기를 형성하며 수산기에 의해 상기 막이 제거되고 수화반응이 지속되는 것으로 이해된다. 또한, 알칼리촉진제는 물과 반응하여 혼합물이 고화되도록 한다. 알칼리촉진제 또한, 고화재와 마찬가지로 입자가 작은 미분말인 것이 반응성이 우수하다.It is understood that the alkali accelerator contains various metal oxides and the like, and forms a hydroxyl group by hydrolysis reaction with water, and the membrane is removed by the hydroxyl group and the hydration reaction is continued. Alkaline accelerators also react with water to cause the mixture to solidify. Alkaline accelerators, like solid materials, are excellent in reactivity as they are fine particles with small particles.

알카리촉진제 함량이 1중량부 미만인 경우에는 알칼리 촉진효과가 미흡하여 고화재의 수화를 지연시키므로 강도발현이 충분히 일어나지 않고, 3중량부를 초과하는 경우에는 불순물로 작용하거나 물리화학적 안정성이 떨어지기 때문이다.If the content of the alkali promoter is less than 1 part by weight, the alkali promoting effect is insufficient, which delays the hydration of the solidified material. Therefore, the strength expression does not sufficiently occur. If the content exceeds 3 parts by weight, it acts as an impurity or physicochemical stability is low.

상기한 바와 같이 고로슬러지와 고화재로서 고로슬래그 분말과 일반 포틀랜드시멘트의 혼합물 및 알칼리 촉진제를 혼합한 후, 수분의 양을 조절하여 혼합한 후 성형하고 양생하여 브릭을 제조한다.As described above, a mixture of blast furnace slag powder, a general portland cement mixture and an alkali accelerator as a blast furnace sludge and a solid fire is mixed, and then the amount of moisture is mixed and then molded and cured to prepare a brick.

이 때 수분의 양은 물/고화재의 중량비가 0.2∼0.5가 되도록 조절한다. 수분의 양이 물/고화재 중량비로 0.2미만이면 충분히 수화반응이 진행되기에 물의 양이 충분하지 못하며 0.5이상이면 브릭을 형성하기 위한 혼합물의 물함량이 많아져 작업성이 떨어지고 성형물을 형성하기 어려울 뿐만 아니라 또한 양생기간이 길어지는 문제가 있다.At this time, the amount of water is adjusted so that the weight ratio of water / solidified material is 0.2 to 0.5. If the amount of water is less than 0.2 in water / solid weight ratio, the amount of water is not sufficient to sufficiently hydrate the reaction, and if it is 0.5 or more, the water content of the mixture for forming bricks increases, which makes workability difficult and difficult to form moldings. In addition, there is a problem that the curing period is long.

성형 및 양생은 일반적인 방법으로 행한다. 양생은 28일 이상동안 양생한다. 28일 미만으로 양생하는 경우에는 충분한 강도를 발현하지 못하기 때문이다.Molding and curing are carried out in a general manner. Curing is cured for more than 28 days. This is because when curing for less than 28 days does not express sufficient intensity.

이와 같이 본 발명의 방법에 의해 제조된 브릭은 강도 뿐만 아니라 강고한 고화제 및 알칼리 촉진제의 반응에 의해 강고한 수화생성물을 형성함으로 내침수성이 또한 우수하다.Thus, the bricks produced by the method of the present invention are also excellent in immersion resistance by forming a firm hydration product by the reaction of a hardening agent and an alkali accelerator as well as strength.

이하, 실시예를 통하여 본 발명을 보다 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.

실시예 1Example 1

고로슬러지, 입도가 4000㎠/g인 고로슬래그 분말과 포틀랜드 시멘트가 고화재 구성비가 0.25~5.7로 혼합된 고화재를 고로슬러지 100중량부에 대해서 25~50중량부로 그리고 알카리촉진제로서 제강 더스트 및 소결더스트를 상기 고로슬러지 100중량부당 1중량부로 첨가하고, 물/고화재 비를 0.3으로 제어한 후, 이들을 혼합하였다.그 후, 혼합물을 성형틀(5cm x 5cm x 5cm)에서 3층 다짐(각층 15cm 높이에서 15회씩 낙하)으로 압축성형하고 탈형한 후, 상온에서 28일간 상대습도 90%이상에서 양생하여 고형화 브릭을 제조하였다. 그 후, 제조된 고형화 브릭의 28일 양생시 압축강도를 측정하고 그 결과를 하기 표1에 나타내었다.Blast furnace sludge, blast furnace slag powder with a particle size of 4000 cm2 / g and portland cement are mixed with a solids composition of 0.25 to 5.7, and the solidified material is 25 to 50 parts by weight with respect to 100 parts by weight of blast furnace sludge and steelmaking dust and sintered as an alkali accelerator. Dust was added in an amount of 1 part by weight per 100 parts by weight of the blast furnace sludge, and the water / solid ratio was controlled to 0.3, followed by mixing. Then, the mixture was compacted in three layers (5 cm x 5 cm x 5 cm) (each layer). After compression molding and demolding with 15 drops at a height of 15 cm), a solidified brick was prepared by curing at a relative humidity of 90% or more for 28 days at room temperature. Then, the compressive strength at the 28-day curing of the prepared solidified brick was measured and the results are shown in Table 1 below.

구분division 고화재 함량(고로슬러지 100중량부기준)Solid Fire Content (Based on 100 parts by weight of blast furnace sludge) 고화재 구성High Fire Composition 28일 양생후 압축강도(kg/㎠)Compressive strength after curing for 28 days (kg / ㎠) (1)고로슬래그미분말(1) blast furnace slag powder (2) 일반 포틀랜드 시멘트(2) General Portland Cement (1)/(2)의 중량비Weight ratio of (1) / (2) 제강더스트Steelmaking Dust 소결더스트Sintered Dust 비교예1Comparative Example 1 2525 6060 4040 1.51.5 92.792.7 92.692.6 발명예1Inventive Example 1 3030 6060 4040 1.51.5 113.6113.6 113.2113.2 발명예2Inventive Example 2 4343 2020 8080 0.250.25 121.1121.1 120.8120.8 발명예3Inventive Example 3 4343 5050 5050 1One 118.3118.3 116.4116.4 발명예4Inventive Example 4 4343 6060 4040 1.51.5 116.8116.8 115.6115.6 발명예5Inventive Example 5 4343 8080 2020 44 111.5111.5 111.7111.7 비교예2Comparative Example 2 4343 8585 1515 5.75.7 94.294.2 94.594.5 발명예6Inventive Example 6 5050 6060 4040 1.51.5 122.3122.3 122.1122.1

상기 표 1에서와 같이, 고화재 구성비가 0.25~4.0범위에 있고, 상기 고화재가 고로슬러지에 대해 30~50중량부 함유된 발명예(1~6)은 28일 압축강도가 모두 110kg/cm2이상이어서, 충분한 강도발현을 실현할 수 있음을 알 수 있다.As shown in Table 1, the composition ratio of the solidified material is in the range of 0.25 to 4.0, the invention example (1 to 6) containing 30 to 50 parts by weight of the solidified material for the blast furnace sludge, all 28 days compressive strength 110kg / cm Since it is two or more, it turns out that sufficient intensity expression can be implement | achieved.

실시예 2Example 2

고로슬러지, 입도가 4000㎠/g인 고로슬래그 분말과 포틀랜드 시멘트가 고화재 구성비가 1.5로 혼합된 고화재를 고로슬러지 100중량부에 대해서 43중량부 그리고 알카리촉진제로서 제강 더스트, 미니밀 더스트 및 소결더스트를 상기 고로슬러지 100중량부당 0.5~3 중량부로 첨가하고, 물/고화재 비를 0.3으로 제어한 후, 이들을 혼합하였다. 상기에서 얻어진 혼합물을 성형틀(5cm x 5cm x 5cm)에서 3층 다짐(각층 15cm 높이에서 15회씩 낙하)으로 압축성형하고 탈형한 후, 상온에서 3일, 7일, 28일간 상대습도 90%이상에서 양생하여 고형화 브릭을 제조하였다. 그 후, 제조된 고형화 브릭의 압축강도를 측정하고, 그 결과를 하기 표 2에 나타내었다.43 parts by weight of blast furnace sludge, blast furnace slag powder with a particle size of 4000 cm2 / g and Portland cement with a solid composition of 1.5, based on 100 parts by weight of blast furnace sludge, and steelmaking dust, mini mill dust and sintered dust as alkali accelerators. Was added in an amount of 0.5 to 3 parts by weight per 100 parts by weight of the blast furnace sludge, and after controlling the water / solids ratio to 0.3, these were mixed. The mixture obtained above is compression molded and demolded in a mold (5 cm x 5 cm x 5 cm) in three layers (15 drops at 15 cm height in each layer) and demolded at 90% relative humidity for 3 days, 7 days, and 28 days at room temperature. Cured at to prepare a solidified brick. Thereafter, the compressive strength of the prepared solidified brick was measured, and the results are shown in Table 2 below.

구분division 알칼리 촉진제Alkali accelerators 압축강도(㎏/㎠)Compressive strength (㎏ / ㎠) 종류Kinds 함량(고로슬러지에 대한 중량부)Content (parts by weight of blast furnace sludge) 3일3 days 7일7 days 28일28 days 비교예 3Comparative Example 3 제강더스트Steelmaking Dust 0.50.5 5.25.2 18.818.8 74.574.5 발명예 7Inventive Example 7 1.01.0 7.67.6 35.435.4 116.8116.8 발명예 8Inventive Example 8 3.03.0 10.310.3 40.340.3 137.3137.3 비교예 4Comparative Example 4 미니밀더스트Mini Mill Dust 0.50.5 2.82.8 12.512.5 70.870.8 발명예 9Inventive Example 9 1.01.0 4.74.7 21.221.2 113.4113.4 발명예 10Inventive Example 10 3.03.0 5.45.4 28.928.9 121.1121.1 비교예 5Comparative Example 5 소결더스트Sintered Dust 0.50.5 4.84.8 18.318.3 73.573.5 발명예 11Inventive Example 11 1.01.0 7.27.2 33.433.4 115.6115.6 발명예 12Inventive Example 12 3.03.0 9.79.7 38.138.1 135.9135.9

상기 표 2에서와 같이, 알카리촉진제로서 본 발명의 제강 더스트, 미니밀 더스트 또는 소결더스트를 고로슬러지 100중량부에 대해 1-3중량부로 첨가하고 28일 양생시킨 발명예(7-12)에서는 모두 110kg/cm2이상의 우수한 압축강도를 얻을 수 있었다.As shown in Table 2, the steelmaking dust, mini-mill dust or sintered dust of the present invention as an alkali promoter is added to 1-3 parts by weight with respect to 100 parts by weight of blast furnace sludge and cured for 28 days all 110kg Excellent compressive strength over / cm 2 was obtained.

고로슬러지, 고로슬래그 분말과 포틀랜드 시멘트로된 고화재 및 알칼리촉진제로서 제강더스트, 미니밀더스트 및 소결더스트를 사용하여 제조된 고형화 브릭은 일반적인 점토벽돌에서 요구되는 압축강도 110kg/cm2이상의 우수한 압축강도를 갖는다.Solidified bricks made of blast furnace sludge, blast furnace slag powder and Portland cement solidifying agent and alkali accelerators using steelmaking dust, mini mill dust and sintered dust have excellent compressive strengths of 110kg / cm 2 or higher, which are required for ordinary clay bricks. Have

Claims (2)

고로슬러지와 고로슬러지 100중량부당 입도가 4000cm2/g 이상인 고로슬래그 분말과 포틀랜드시멘트가 고로슬래그 분말/포틀랜드 시멘트 중량비 0.25- 4.0로 혼합된 고화재 30~50중량부로된 주원료에 제강더스트, 미니밀더스트 및 소결더스트로 부터 선택된 알칼리 촉진제를 상기 고로슬러지 100중량부당 1~3중량부로 첨가한 후, 수분의 양을 조절하고 혼합 및 압축성형한 후 양생하는 고형화 브릭 제조방법.Blast furnace sludge and blast furnace sludge per 100 parts by weight of particle size of 4000cm 2 / g or more blast furnace slag powder and cement powder is blast furnace slag / cement weight ratio of 0.25- to 4.0 and a mixed fire 30 to 50 weight parts of the main raw material in steel-making dust, dust minimil And adding an alkali promoter selected from sintered dust to 1 to 3 parts by weight per 100 parts by weight of the blast furnace sludge, and controlling the amount of water, curing and compression molding, and curing. 제1항에 있어서, 상기 수분의 양은 물/고화재의 중량비가 0.2~0.5가 되도록 조절함을 특징으로 하는 고형화 브릭의 제조방법The method of claim 1, wherein the amount of water is controlled so that the weight ratio of water / solids is 0.2-0.5.
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