KR20000032102A - Molding material using slag from an iron mill - Google Patents

Molding material using slag from an iron mill Download PDF

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KR20000032102A
KR20000032102A KR1019980048449A KR19980048449A KR20000032102A KR 20000032102 A KR20000032102 A KR 20000032102A KR 1019980048449 A KR1019980048449 A KR 1019980048449A KR 19980048449 A KR19980048449 A KR 19980048449A KR 20000032102 A KR20000032102 A KR 20000032102A
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South Korea
Prior art keywords
slag
aggregate
molding material
mixed
stainless
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KR1019980048449A
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Korean (ko)
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KR100415640B1 (en
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변태봉
한기현
이학봉
배우현
김형석
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이구택
포항종합제철 주식회사
신현준
재단법인 포항산업과학연구원
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Priority to KR10-1998-0048449A priority Critical patent/KR100415640B1/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/141Slags
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

PURPOSE: A molding material using slag from an iron mill is provided, which is able to solve the problem of supply and demand of aggregate due to collect restriction of natural aggregate. CONSTITUTION: In the molding material using water granulation slag comprising aggregate and cement, the aggregate comprises: (i) 10-90 wt.% of water granulation slag; and (ii) 90-10 wt.% of at least one of sand, powdered limestone or slow cooling slag. In the molding material using water granulation slag and stainless slag comprising aggregate and cement, the aggregate comprises: (i) less than 50 wt.% of water granulation slag; and (ii) more than 50 wt.% of stainless slag.

Description

제철소 슬래그를 이용한 성형재료Molding material using steel mill slag

본 발명은 벽돌 및 블록등과 같은 콘크리트 2차제품의 조성물에 관한 것으로, 보다 상세하게는 수재슬래그와 스테인레스슬래그를 이용한 성형재료에 관한 것이다.The present invention relates to compositions of secondary concrete products such as bricks and blocks, and more particularly, to molding materials using handmade slag and stainless slag.

일반적으로 시멘트와 골재를 물과 혼합하여 적정강도를 가지는 성형물을 만드는데 통상 이를 콘크리트 2차제품이라 일컫는다. 그 예로는 벽돌, 블록, 보도블럭, 도로경계석, 배수로관, 중앙분리대, 맨홀뚜껑, 조경석등이 있다. 이러한 성형물의 원료인 골재에는 주로 천연모래 또는 석분이 이용되고 있으며, 천연모래는 산모래, 강모래, 바다모래 등이 있다. 그런데, 향후 자연 생태계의 보호 및 자연환경 보호 등에 대한 규제가 점차 심화됨에 따라 천연모래의 부족현상이 나타날 것으로 예상되어 그 대책마련이 요구되고 있다.In general, cement and aggregate are mixed with water to make a molding having a suitable strength, which is commonly referred to as concrete secondary product. Examples include bricks, blocks, sidewalk blocks, road boundary stones, drainage pipes, central dividers, manhole covers, and landscape stone. Aggregate which is a raw material of such a molding is mainly used natural sand or stone powder, and natural sand includes mountain sand, river sand and sea sand. However, as the regulations on protection of natural ecosystem and protection of natural environment are intensified in the future, shortage of natural sand is expected to occur, and the countermeasures are required.

한편, 제철소에서는 각종 슬래그가 발생하고 있다. 예를들어 고로에서 부생되는 괴재슬래그와 수재슬래그를 비롯하여, 스테인레스강을 만드는 공정에서는 스테인레스슬래그등이 발생하고 있다. 고로에서 부생되는 괴재슬래그는 일정입도로 조정후 도로 로반재로 활용되고 있으며, 고로 수재슬래그는 시멘트 클린커 원료를 비롯한 고로 시멘트원료, 비료원료등으로 활용되고 있으나, 아직까지 골재로의 사용 가능성은 보고된 바 없다. 스테인레스 슬래그 또한, 마찬가지이다.On the other hand, various slag generate | occur | produce in a steel mill. For example, stainless steel slag is generated in the process of making stainless steel, as well as by-product slag and hand slag produced in the blast furnace. The blast furnace slag which is a by-product from blast furnace is used as road slag after adjusting to a certain granularity, and blast furnace slag is used as cement raw material, blast furnace cement raw material, fertilizer raw material, etc. It has never been. Stainless slag is also the same.

본 발명자들은 제철소에서 다량으로 부생되는 슬래그를 천연모래로 대체할 수 있는 방안에 대해 거듭하여 연구한 결과, 제철소 슬래그를 골재로 이용하는 것이 가능하다는 것을 확인하고 본 발명을 제안하기에 이르렀다.The present inventors have repeatedly studied the method to replace the slag produced by a large amount in the steel mill with natural sand, and as a result, it has been confirmed that it is possible to use steel mill slag as aggregate, and came up with the present invention.

본 발명은 고로 수재슬래그와 스테인레스 슬래그를 천연골재 대체용으로 사용하여 콘크리트 2차제품인 성형재료를 제안하는데, 그 목적이 있다.The present invention proposes a molding material, which is a secondary product of concrete, by using blast-furnace slag and stainless slag as a substitute for natural aggregate.

상기 목적을 달성하기 위한 본 발명의 성형재료는,Molding material of the present invention for achieving the above object,

(a)수재슬래그:10-90중량%와(a) handmade slag: 10-90 wt%

(b)모래, 석분 또는 괴재슬래그중 적어도 1종이상:90-10중량%로 혼합되는 골재와 시멘트를 포함하여 구성된다.(b) At least one or more of sand, stone powder or aggregated slag, comprising aggregate and cement mixed at 90-10% by weight.

또한, 본 발명의 성형재료는,In addition, the molding material of the present invention,

(a) 수재슬래그:50중량%이하와(a) Reclaimed slag: 50 wt% or less

(b) 스테인레스 슬래그:50중량%이상으로 혼합되는 골재와 시멘트를 포함하여 구성된다.(b) Stainless Slag: Consists of aggregates and cements mixed in at least 50% by weight.

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

[수재슬래그를 이용한 성형재료][Forming material using hand slag]

제철소 제선공정의 고로에서는 슬래그가 발생되며, 이 슬래그는 처리과정에 따라 괴재슬래그와 수재슬래그로 나눈다. 괴재슬래그는 제선공정의 로에서 출선시 용선과 분리한 용융상태의 슬래그를 냉각야드에 배재한 후 서서히 냉각시킨 것으로 소 정의 크기로 분쇄하여 괴상으로 출하된다. 반면에 수재슬래그는 용융상태의 슬래그에 수재설비의 가압수를 분사하여 급냉시킴으로서 비결정질상태로 출하된다.Slag is generated in the blast furnace of the steel mill, and the slag is divided into aggregate slag and wood slag according to the treatment process. Aggregate slag is a slag of molten state separated from molten iron when leaving the furnace in the steelmaking process and is gradually cooled after being crushed to a predetermined size and shipped as a mass. On the other hand, the slag is shipped in an amorphous state by quenching by spraying the pressurized water of the sewage equipment to the molten slag.

고로 슬래그(괴재슬래그 및 수재슬래그)의 화학성분을 표 1에 나타나 있다.The chemical composition of the blast furnace slag (lumped slag and hand slag) is shown in Table 1.

화학조성(중량%)Chemical composition (% by weight) SiO2 SiO 2 CaOCaO Al2O3 Al 2 O 3 MgOMgO MnOMnO TiO2 TiO 2 Na2ONa 2 O K2OK 2 O T.FeT.Fe FeOFeO ClCl SO3 SO 3 ZnOZnO NiO,Cr2O3,CuO,CdO,PbO,SnO,Sb는 Trace임NiO, Cr 2 O 3 , CuO, CdO, PbO, SnO, Sb are traces 33.13-34.7533.13-34.75 41.15-43.1641.15-43.16 9.82-14.609.82-14.60 7.03-11.557.03-11.55 0.05-0.530.05-0.53 0.63-1.850.63-1.85 0.1-0.150.1-0.15 0.27-0.550.27-0.55 0.30-1.680.30-1.68 0.32-0.970.32-0.97 0.0018-0.0430.0018-0.043 0.01-0.0740.01-0.074 0.0015-0.0200.0015-0.020

고로 슬래그는 CaO와 SiO2성분이 주성분으로 인체에 유해한 영향을 미치는 중금속은 거의 없으며, 혹 미량 존재하더라도 고온의 용융 슬래그로부터 서냉 또는 급냉에 의해 제조되어지는 관계로 안정한 화합물 상태로 구성되어 있기 때문에 화학반응에 의한 화학적 및 물리적특성이 변화되지 않는 매우 안정한 원료이다.Since blast furnace slag is composed mainly of CaO and SiO 2 , there are few heavy metals that have harmful effects on the human body, and even if a small amount is present, it is composed of a stable compound because it is produced by slow cooling or rapid cooling from hot molten slag. It is a very stable raw material which does not change chemical and physical properties by reaction.

위의 표 1에서 나타나 있듯이, 괴재슬래그와 수재슬래그는 화학성분의 차이는 없지만, 수재슬래그는 비결정질상태이고 괴재슬래그는 결정질상태로 화학적성질은 서로 다르다. 이와 같이 수재슬래그는 비결정질로서 잠재수경성을 가지고 있기 때문에 골재로서 사용할 경우 후기 강도 발현에 중요한 역할을 할 수 있다. 여기서, 잠재수경성이란 수재슬래그가 물과 접촉하면 슬래그 표면에 수화생성물이 형성되어 응결 경화되는 성질을 말한다.As shown in Table 1, the aggregated slag and the slag have no difference in chemical composition, but the slag is in an amorphous state and the aggregated slag is in a crystalline state. As such, the reclaimed slag may play an important role in developing late strength when used as aggregate because it has latent hydrophobicity as an amorphous material. Here, the latent hydraulic property refers to a property that the hydrated product is formed on the surface of the slag when the slag is in contact with water to condense and harden.

본 발명에 따라 수재슬래그를 골재로 적용하는 경우 골재중의 수재슬래그 배합량이중요하다. 본 발명에서는 시멘트와 골재의 통상의 배합비 예를들어 1:4∼10를 기준으로 하여 골재로 수재슬래그 배합량을 정한다.In the case where the applied slag is applied to the aggregate according to the present invention, the amount of the mixed slag in the aggregate is important. In the present invention, the mixing ratio of reinforcing slag is determined from aggregate based on a typical mixing ratio of cement and aggregate, for example, 1: 4 to 10.

일실시예로 골재중 수재슬래그는 10-90중량%로 하고, 나머지 모래, 석분 또는 괴재슬래그중 적어도 1종이상을 90-10중량%로 하는 것이 바람직하다. 골재중 수재슬래그를 10중량%이상으로 혼합하는 것은 천연골재의 대체재를 공급하기 위한 본 발명의 목적을 고려한 것이고, 90중량%이하로 혼합하는 것은 KS규격에 규정된 콘크리트 2차제품의 압축강도를 만족하기 위한 것이다. 여기서 모래는 통상의 골재로 이용되는 천연모래를 의미하고, 또한, 석분도 통상 골재로서 이용되는 것이다. 괴재슬래그는 앞에서 설명한 고로의 괴재슬래그로서 괴상으로 출하된 것을 적정입도로 분쇄한 것이다. KS규격에서 골재는 -0.15mm∼-10mm의 입도를 만족하는 것을 사용하도록 규정되어 있으므로 본 발명에서 사용하는 골재 또한 KS규정을 만족하는 것을 사용한다.In one embodiment, the aggregate slag in the aggregate is 10-90% by weight, and at least one or more of the remaining sand, stone powder, or aggregate slag is preferably 90-10% by weight. The mixing of the aggregate slag in the aggregate is more than 10% by weight in consideration of the object of the present invention for supplying a substitute for natural aggregate, and the mixing in the amount of 90% by weight or less is the compressive strength of the concrete secondary product specified in the KS standard. It is to be satisfied. Sand means here the natural sand used as a normal aggregate, and stone powder is also normally used as aggregate. The lump ash slag is crushed slag of the blast furnace described above and is crushed at a proper granularity. In the KS standard aggregate is used to satisfy the particle size of -0.15mm ~ -10mm, so the aggregate used in the present invention also uses that meets the KS regulations.

[수재슬래그 및 스테인레스 슬래그를 이용한 성형재료][Forming material using handmade slag and stainless slag]

본 발명에 따라 수재슬래그와 스테인레스 슬래그가 배합된 골재를 이용하여도 적정강도를 가지는 성형재료를 얻을 수 있다. 스테인레스 슬래그는 스테인레스강 제조공정에서 나오는 슬래그로 그 화학성분을 예를들면 아래 표 2과 같다.According to the present invention, a molding material having an appropriate strength can be obtained even by using aggregate in which the handmade slag and the stainless slag are blended. Stainless slag is a slag from the stainless steel manufacturing process, and the chemical composition thereof is shown in Table 2 below.

화학조성(중량%)Chemical composition (% by weight) SiO2 SiO 2 CaOCaO Al2O3 Al 2 O 3 MgOMgO MnOMnO TiO2 TiO 2 Na2ONa 2 O K2OK 2 O T.FeT.Fe 33.13-34.7533.13-34.75 41.15-43.1641.15-43.16 9.82-14.609.82-14.60 7.03-11.557.03-11.55 0.05-0.530.05-0.53 0.63-1.850.63-1.85 0.1-0.150.1-0.15 0.27-0.550.27-0.55 0.30-1.680.30-1.68

본 발명에 따라 스테인레스 슬래그를 골재로 이용하는 경우 골재의 배합비는, 수재슬래그:50중량%이하와 스테인레스 슬래그:50중량%이상으로 하는 것이 바람직하다. 그 이유는 수재슬래그의 사용량이 전체골재의 50중량%이상의 경우 성형체에 크랙이 발생하고 제품성형성이 나빠 불량율이 매우 높아지게 된다.In the case of using the stainless slag as aggregate in accordance with the present invention, the mixing ratio of the aggregate is preferably set to 50% by weight or less and 50% by weight or more of the slag of the slag. The reason is that when the amount of the used slag is more than 50% by weight of the total aggregate, the crack occurs in the molded body and the product formation is bad, so that the defect rate is very high.

이때, 전체골재의 50중량%이상으로 혼합되는 스테인레스 슬래그의 일정량 대신 석분, 모래, 괴재슬래그가 적어도 1종이상 혼합될 수 있다. 또한, 전체골재의 50중량%이하로 혼합되는 수재슬래그의 일정량 대신 석분, 천연모래, 괴재슬래그가 적어도 1종이상 혼합될 수 있다.At this time, instead of a predetermined amount of stainless slag mixed with more than 50% by weight of the total aggregate, stone powder, sand, aggregate slag may be mixed at least one or more. In addition, stone powder, natural sand, lumped slag may be mixed with at least one kind instead of a predetermined amount of the hand-made slag mixed in less than 50% by weight of the total aggregate.

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

[실시예 1]Example 1

발명예 (1∼15)Inventive Example (1-15)

천연모래, 석분 그리고 입도조정된 -10mm고로 괴재 슬래그에 대하여 제철소 고로에서 나온 수재슬래그를 각각 전체골재의 중량비로 10%, 30%, 50%, 70%, 90%가 되도록 배합비를 조정하고 골재에 대한 시멘트비를 10:1로 조정한 후 적당량의 수분을 첨가하여 impller mixer로 충분히 혼합하였다. 이때, 전체골재의 중량은 1000kg이었다. 그후 가압력 45kg/cm2로 시멘트 벽돌을 성형한 후 습도 98%이상인 양생조내에서 50℃×10hr조건으로 실내 양생한후 실외양생을 실시하였다. 실외양생 7일후 시멘트 벽돌의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 2에 나타내었다.For natural sand, stone powder, and -10mm blast furnace aggregate slag adjusted in size, adjust the mix ratio to 10%, 30%, 50%, 70%, 90% by weight of the total slag from the steelworks blast furnace. After adjusting the cement ratio to 10: 1, an appropriate amount of water was added, and the mixture was sufficiently mixed with an impller mixer. At this time, the weight of the total aggregate was 1000kg. Thereafter, cement bricks were molded at a pressure of 45 kg / cm 2 , and then cured indoors under a condition of 50 ° C. × 10 hrs in a curing tank with a humidity of 98% or higher, followed by outdoor curing. After 7 days of outdoor curing, compressive strength and water absorption of cement bricks were measured and the results are shown in Table 2 below.

비교예 (1∼3)Comparative Example (1 to 3)

골재로서 수재슬래그를 100%사용하고, 수재슬래그인 골재와 시멘트의 비를 1:10, 1:6.7, 1:4로 변화시킨 것을 제외하고는 상기 발명예와 동일한 방법으로 벽돌을 제조한 다음, 벽돌의 압축강도와 흡수율을 측정하고 그 결과를 아래 표 2에 나타내었다.A brick was manufactured by the same method as the above-described invention except that 100% of the used slag was used as the aggregate, and the ratio of the aggregated slag to the handmade slag was changed to 1:10, 1: 6.7, 1: 4. The compressive strength and water absorption of bricks were measured and the results are shown in Table 2 below.

종래예(1)Conventional example (1)

천연모래 1000kg의 골재에 대한 시멘트비를 10:1로 하고 적당량의 수분을 첨가하여 impller mixer로 충분히 혼합하였다. 그후 가압력 45kg/cm2로 시멘트 벽돌을 성형한 후 습도 98%이상인 양생조내에서 50℃×10hr조건으로 실내 양생한후 실외양생을 실시하였다. 실외양생 7일후 시멘트 벽돌의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 3에 나타내었다.A cement ratio of 1000 kg of natural sand aggregate was 10: 1, and an appropriate amount of water was added, and the mixture was sufficiently mixed with an impller mixer. Thereafter, cement bricks were molded at a pressure of 45 kg / cm 2 , and then cured indoors under a condition of 50 ° C. × 10 hrs in a curing tank with a humidity of 98% or higher, followed by outdoor curing. After 7 days of outdoor curing, the compressive strength and water absorption of cement bricks were measured and the results are shown in Table 3 below.

위 표 3에 나타나 있듯이, 본 발명에 따라 제조된 벽돌(발명예1-4, 6-9, 11-13)은 천연모래로 제조된 벽돌(종래예1) 보다 더 우수한 물성을 나타내었다. 발명예(5,10,14-15)의 벽돌은 종래의 벽돌 보다 물성은 다소 떨어졌으나, KS에 규정된 벽돌의 물성(압축강도 80kg/cm2, 흡수율 10%이하)을 만족하고 있었다.As shown in Table 3, the bricks prepared according to the present invention (Inventive Examples 1-4, 6-9, 11-13) showed better physical properties than the bricks made of natural sand (prior example 1). The bricks of Inventive Example (5, 10, 14-15) were somewhat inferior in physical properties to the conventional bricks, but satisfied the physical properties (compressive strength of 80 kg / cm 2 and absorption rate of 10% or less) specified in KS.

[실시예 2]Example 2

발명예 (16∼24)Inventive Example (16-24)

천연모래, 석분 그리고 입도조정된 -10mm 고로 괴재 슬래그에 제철소 고로에서 나온 수재슬래그를 각각 전체골재의 중량비로 10%, 50%, 90%가 되도록 배합비를 조정하고 전체골재에 대한 시멘트비를 5:1로 조정한 후 적당량의 수분을 첨가하여 impller mixer로 충분히 혼합하였다. 이때, 전체골재의 중량은 1000kg이었다. 그후 가압력 45kg/cm2로 속빈 콘크리트 블럭을 성형한 후 습도 98%이상인 양생조내에서 50℃×10hr조건으로 실내 양생한후 실외양생을 실시하였다. 실외양생 7일후 블럭의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 4에 나타내었다.Adjust the mixing ratio of the natural sand, stone powder and granulated slag from the steel mill to 10%, 50% and 90% by weight of the total aggregate, and adjust the cement ratio of the total aggregate to 5: 1. After adjusting to, an appropriate amount of water was added and mixed well with an impller mixer. At this time, the weight of the total aggregate was 1000kg. After that, the hollow concrete block was molded at a pressure of 45 kg / cm 2 , and then cured indoors under the conditions of 50 ° C. × 10hr in a curing tank with a humidity of 98% or higher, and then outdoor curing was performed. After 7 days of outdoor curing, the compressive strength and water absorption of the block were measured and the results are shown in Table 4 below.

비교예 (4)Comparative Example (4)

골재로서 수재슬래그를 100%사용한 것을 제외하고는 상기 발명예와 동일한 방법으로 블럭을 제조한 다음, 블럭의 압축강도와 흡수율을 측정하고 그 결과를 아래 표 4에 나타내었다.A block was manufactured in the same manner as in the invention example except that 100% of the handmade slag was used as the aggregate, and then the compressive strength and the water absorption of the block were measured and the results are shown in Table 4 below.

종래예(2)Conventional example (2)

천연모래 1000kg의 골재에 대한 시멘트비를 5:1로 조정하고 적당량의 수분을 첨가하여 impller mixer로 충분히 혼합하였다. 그후 가압력 45kg/cm2로 블럭을 성형한 후 습도 98%이상인 양생조내에서 50℃×10hr조건으로 실내 양생한후 실외양생을 실시하였다. 실외양생 7일후 시멘트 블럭의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 4에 나타내었다.The cement ratio of 1000 kg of natural sand aggregate was adjusted to 5: 1 and mixed with an impller mixer by adding an appropriate amount of water. After that, the block was molded at a pressure of 45 kg / cm 2 , and then cured indoors under a condition of 50 ° C. × 10 hr in a curing tank having a humidity of 98% or higher, followed by outdoor curing. After 7 days of outdoor curing, the compressive strength and water absorption of the cement block were measured and the results are shown in Table 4 below.

위 표 4에 나타나 있듯이, 본 발명에 따라 제조된 블록은 종래 블록과 비교해 볼 때 동등이상의 물성을 가지고 있었다.As shown in Table 4, the block produced according to the present invention had physical properties equivalent to or higher than those of the conventional block.

[실시예 3]Example 3

아래 실시예들은 골재의 배합비를 제외한 벽돌의 제조방법은 상기 실시예1과 동일하므로 여기서는 실시예들의 배합비만 언급한다.In the following examples, except for the mixing ratio of the aggregate, the manufacturing method of the brick is the same as that of Example 1, so only the mixing ratio of the embodiments is mentioned herein.

발명예 (25∼27)Inventive Example (25-27)

스테인레스 슬래그에 수재 슬래그를 각각 전체골재의 중량비로 10%, 30%, 50%가 되는 배합비로 조정하고 골재에 대한 시멘트의 비를 10:1로 조정한 후 적당량의 수분을 첨가하여 impller mixer로 충분히 혼합하여 2원계 혼합골재를 제조하고, 이 골재로 벽돌을 제조한 다음 그 벽돌의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 5에 나타내었다.The stainless slag is adjusted to 10%, 30%, and 50% by weight of the total aggregate, and the cement to aggregate ratio is adjusted to 10: 1, and then the appropriate amount of water is added to the impller mixer. Mixing to prepare a binary mixed aggregate, and prepared a brick with this aggregate and then measured the compressive strength and absorption of the brick and the results are shown in Table 5 below.

발명예 (28∼29)Inventive Examples (28-29)

스테인레스 슬래그와 석분이 혼합된 골재에 수재 슬래그를 30%, 50%가 되도록 배합비를 조정하고 상기와 동일한 조건으로 3원계 혼합골재를 제조하고 이 골재로 벽돌을 제조한 다음 그 벽돌의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 5에 나타내었다.Adjust the mixing ratio to 30% and 50% of the handmade slag on the aggregate mixed with stainless slag and stone powder, prepare ternary mixed aggregate under the same conditions as above, and prepare the brick with the aggregate, and then compress the strength and absorption rate of the brick. Was measured and the results are shown in Table 5 below.

발명예 (30∼31)Inventive Example (30-31)

스테인레스 슬래그, 석분, -10mm 괴재슬래그가 혼합된 골재에 수재슬래그를 30%, 50%가 되도록 배합비를 조정하고 상기와 동일한 조건으로 4원계 혼합골재를 제조하고 이 골재로 벽돌을 제조한 다음, 벽돌의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 5에 나타내었다.Adjust the mixing ratio to 30% and 50% of the hand slag on the aggregate mixed with stainless slag, stone powder, and -10mm aggregate slag, and to prepare the quaternary mixed aggregate under the same conditions as above, and then prepare the brick with the aggregate. The compressive strength and absorption rate of were measured and the results are shown in Table 5 below.

비교예 (5∼7)Comparative Example (5-7)

스테인레스 슬래그에 수재슬래그를 전체 골재의 중량비로 70%가 되도록 배합비를 조정하고 상기와 동일한 조건으로 2원계 혼합골재를 제조하였다(비교예(5)). 또한, 스테인레스 슬래그와 석분이 혼합된 골재에 수재슬래그를 전체골재의 중량비로 70%가 되도록 배합비를 조정하고 상기와 동일한 조건으로 3원계 혼합골재를 제조하였다(비교예(6)). 또한, 스테인레스 슬래그, 석분, -10mm 괴재슬래그가 혼합된 골재에 수재슬래그를 전체골재의 중량비로 70%가 되도록 4원계 혼합골재를 제조하였다(비교예(7)).The mixing ratio was adjusted to 70% by weight ratio of the total aggregate of the male slag to the stainless slag, and a binary mixed aggregate was prepared under the same conditions as described above (Comparative Example (5)). In addition, the mixing ratio was adjusted to 70% by weight ratio of the total aggregate of the hand slag to the aggregate mixed with stainless slag and stone powder, and the ternary mixed aggregate was prepared under the same conditions as described above (Comparative Example (6)). In addition, a quaternary mixed aggregate was prepared such that the stainless slag, stone powder, -10mm aggregate slag was mixed to 70% by weight ratio of the total aggregate of the handmade slag (comparative example (7)).

상기 혼합골재로 벽돌을 제조한 다음, 벽돌의 압축강도 및 흡수율을 측정하고 그 결과를 아래 표 5에 나타내었다.After the brick was manufactured from the mixed aggregate, the compressive strength and the absorption rate of the brick were measured and the results are shown in Table 5 below.

위 표 5에서 알 수 있듯이, 수재슬래그와 스텐인레스 슬래그로 배합되는 벽돌은 벽돌의 요구특성을 모두 만족하고 있었다.As can be seen in Table 5, the brick composed of the hand slag and stainless slag was satisfied all the requirements of the brick.

상술한 바와 같이, 본 발명은 천연골재의 채취제한에 따른 골재의 수급난을 해소할 수 있는 성형재료를 제공할 수 있으며, 이러한 성형재료는 벽돌, 블록, 보도블럭, 도로경계석, 배수로관, 중앙분리대, 맨홀뚜껑, 조경석등과 같은 콘크리트 2차제품에 유용하게 적용될 수 있는 효과가 있는 것이다.As described above, the present invention can provide a molding material that can solve the supply and demand difficulties of the aggregate in accordance with the limit of the collection of natural aggregate, such molding material is brick, block, sidewalk block, road boundary stone, drainage pipe, central separator , Can be usefully applied to secondary concrete products such as manhole cover, landscaping stone.

Claims (4)

골재와 시멘트로 조성되는 성형재료에 있어서,In the molding material composed of aggregate and cement, 상기 골재는 (a)수재슬래그:10-90중량%와The aggregate is (a) wood slag: 10-90% by weight and (b)모래, 석분 또는 괴재슬래그중 적어도 1종이상:90-10중량%로(b) at least one of sand, stone meal or lumped slag: 90-10% by weight 혼합된 것을 포함하여 이루어짐을 특징으로 하는 수재슬래그를 이용한 성형재료Molding material using handmade slag, characterized in that it comprises a mixture 골재와 시멘트로 조성되는 성형재료에 있어서,In the molding material composed of aggregate and cement, 상기 골재는 (a) 수재슬래그:50중량%이하와The aggregate is (a) wood slag: less than 50% by weight (b) 스테인레스 슬래그:50중량%이상으로(b) Stainless slag: 50 wt% or more 혼합되는 것을 포함하여 이루어짐을 특징으로 하는 수재슬래그와 스테인레스 슬래그를 이용한 성형재료.Molding material using the handmade slag and stainless slag, characterized in that it comprises a mixture. 제 2항에 있어서, 상기 골재에는 50중량%이상으로 혼합되는 스테인레스 슬래그의 일정량 대신 석분, 모래, 괴재슬래그가 적어도 1종이상 혼합됨을 특징으로 하는 성형재료.3. The molding material according to claim 2, wherein the aggregate is mixed with at least one of stone powder, sand, and aggregated slag instead of a predetermined amount of stainless slag mixed at 50 wt% or more. 제 2항에 있어서, 상기 골재에는 50중량%이하로 혼합되는 수재슬래그의 일정량 대신 석분, 천연모래, 괴재슬래그가 적어도 1종이상 혼합됨을 특징으로 하는 성형재료.3. The molding material as claimed in claim 2, wherein the aggregate is mixed with at least one of stone powder, natural sand, and lumped slag instead of a predetermined amount of wood slag mixed at 50 wt% or less.
KR10-1998-0048449A 1998-11-12 1998-11-12 Formed material using slag of iron and steel works KR100415640B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100474976B1 (en) * 2001-10-23 2005-03-08 한일시멘트 (주) The method for manufacturing of composition for height-intensity concrete
KR100896592B1 (en) * 2002-12-24 2009-05-07 주식회사 포스코 Binder for cement concrete using AOD slag
WO2016084999A1 (en) * 2014-11-27 2016-06-02 주식회사 네오엔 Method for producing cured body for civil engineering and construction using blast furnace slag

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02233539A (en) * 1989-03-06 1990-09-17 Kobe Steel Ltd Slag block
JPH04187551A (en) * 1990-11-19 1992-07-06 Kobe Steel Ltd Roadbed material and its production
JPH0532444A (en) * 1991-07-31 1993-02-09 Sumitomo Metal Ind Ltd Water-permeable block for pavement
JP2988196B2 (en) * 1993-05-31 1999-12-06 日本鋼管株式会社 Pavement block and manufacturing method thereof
JPH07206486A (en) * 1994-01-05 1995-08-08 Hisamitsu Tsuyuki Concrete admixture with dephosphorized slag and blast-furnace water-crashed granulated slag as base
JP3050793B2 (en) * 1996-01-31 2000-06-12 大野興業株式会社 Pavement material and pavement block using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100474976B1 (en) * 2001-10-23 2005-03-08 한일시멘트 (주) The method for manufacturing of composition for height-intensity concrete
KR100896592B1 (en) * 2002-12-24 2009-05-07 주식회사 포스코 Binder for cement concrete using AOD slag
WO2016084999A1 (en) * 2014-11-27 2016-06-02 주식회사 네오엔 Method for producing cured body for civil engineering and construction using blast furnace slag

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