KR20010082999A - The compound of blast furnace slag-white cement unused clinker - Google Patents

The compound of blast furnace slag-white cement unused clinker Download PDF

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KR20010082999A
KR20010082999A KR1020000008608A KR20000008608A KR20010082999A KR 20010082999 A KR20010082999 A KR 20010082999A KR 1020000008608 A KR1020000008608 A KR 1020000008608A KR 20000008608 A KR20000008608 A KR 20000008608A KR 20010082999 A KR20010082999 A KR 20010082999A
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blast furnace
furnace slag
white cement
clinker
weight
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KR1020000008608A
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Korean (ko)
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KR100404330B1 (en
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박응모
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최낙운
황영진
박응모
이철수
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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
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

PURPOSE: A pure blast furnace slag white cement composition without using a clinker is provided to improve strength and to reduce manufacturing cost by using materials that are inexpensive and easy to obtain. CONSTITUTION: A blast furnace slag white cement composition without using a clinker includes 70-90 wt.% of blast furnace slag powder, 5.0-12.0 wt.% of anhydrous calcium sulfate (or anhydrous plaster), 5.0-12.0 wt.% of calcium sulfate dihydrate, 0.5-2.0 wt.% of calcium hydroxide, and 1.0-5.0 wt.% of limestone as main components. Here, 0-2.0 wt.% of a contract media can be optionally added to the composition. In addition, the fineness of the blast furnace slag is in a range of from 4,500 to 9,000 square centimeter.

Description

클링커를 사용하지 않은 고로슬래그 백색시멘트 조성물{The compound of blast furnace slag-white cement unused clinker}The blast furnace slag-white cement unused clinker}

본 발명은 클링커를 사용하지 않은 고로슬래그 백색시멘트 조성물에 관한 것이다. 더욱 자세하게는 고로슬래그를 주재료로 하고 석고, 소석회, 석회석 및 조경재를 기타의 조성물로 한 것으로 백색시멘트의 제조단가를 크게 줄이면서도 높은 강도를 발현하는 고로슬래그 백색시멘트 조성물에 관한 것이다.The present invention relates to a blast furnace slag white cement composition without using a clinker. More specifically, the present invention relates to a blast furnace slag white cement composition having blast furnace slag as a main material and gypsum, slaked lime, limestone and landscaping material as other compositions, which exhibits high strength while significantly reducing the manufacturing cost of white cement.

클링커를 사용하지 않은 고로슬래그 백색시멘트는 제철과정에서 발생하는 슬래그를 이용하여 제조한 것이다. 국내에서 발생하는 슬래그량은 년간 약 1500만톤이며 그 중에서 약 94% 정도가 재활용되고 있는 것으로 알려져 있다.Blast furnace slag white cement without clinker is manufactured by using slag generated in the steelmaking process. The amount of slag generated in Korea is about 15 million tons per year, and about 94% of it is recycled.

그러나 클링커를 사용하지 않은 고로슬래그 백색시멘트는 여러 가지 장점을 가지고 있다. 먼저, 장기강도가 일반 포틀랜트 시멘트와 동등하거나 그 이상으로 발현되며 클링커를 사용하지 않았기 때문에 수화열이 작고 내화학성이 우수하다.However, blast furnace slag white cement without clinker has several advantages. First, since the long-term strength is equal to or greater than that of general portland cement and no clinker is used, the heat of hydration is small and the chemical resistance is excellent.

다음으로, 현재 사용되고 있는 백색 포틀랜트 시멘트는 주성분이 실리카, 알루미나 및 석회를 함유하는 원료를 적당한 비율로 충분히 혼합한 후 용융, 소결의 과정을 거쳐 얻어진 클링커에 적당량의 석고를 첨가하여 분쇄과정을 거쳐 얻어지는데 원재료에 대한 요구가 까다로울 뿐 아니라 제조원가도 높다. 하지만 본 발명에서 제조한 클링커를 사용하지 않은 고로슬래그 백색 시멘트는 소결과정이 없기 때문에 백색 포틀랜트 시멘트에 비하여 에너지를 크게 절약할 수 있는 동시에 이산화탄소의 배출량을 대폭 줄일 수 있어 지구온난화와 환경오염 방지에 큰 기여를 할 수 있다.Next, currently used white portant cement is pulverized by adding an appropriate amount of gypsum to the clinker obtained by sufficiently mixing raw materials containing silica, alumina and lime in an appropriate ratio as a main component. Not only is the demand for raw materials difficult to obtain, but also the manufacturing cost is high. However, because the blast furnace slag white cement without the clinker manufactured in the present invention does not have a sintering process, it can save energy significantly and significantly reduce carbon dioxide emissions compared to white portland cement, thereby preventing global warming and environmental pollution. You can make a big contribution.

또한 혼합기와 계량기 등의 간단한 설비만 있으면 생산할 수 있기 때문에 생산원가를 현저히 낮출 수 있다. 또한, 경화체의 표면이 흰색이므로 여러 안료에 의한 착색이 양호하여 여러 종류의 컬러시멘트를 제조할 수 있는 백색시멘트의 조건을 만족한다. 따라서 캐스트스톤, 장식재료 및 콘크리트의 2차 제품 등에 광범위하게 사용할 수 있다.In addition, the production cost can be significantly lowered because a simple equipment such as a mixer and a meter can be produced. In addition, since the surface of the cured body is white, the coloring by various pigments is good, and satisfies the conditions of the white cement which can produce various kinds of color cements. Therefore, it can be widely used in cast stone, decorative materials and secondary products of concrete.

본 발명은 클링커를 사용하지 않고 순전히 산업부산물인 고로슬래그를 주재료로 하여 기타의 조성물에 구입이 용이한 무수석고, 이수석고, 소석회, 석회석 및 조경제를 첨가하므로써 우수한 강도특성과 저렴한 제조단가를 갖는 백색시멘트 조성물을 제공하는것을 기술적 과제로 한다.The present invention has excellent strength characteristics and low manufacturing cost by adding anhydrous gypsum, dihydrate gypsum, slaked lime, limestone and crude economy to other compositions, which are easy to purchase in other compositions, using blast furnace slag which is purely an industrial by-product without using clinker. It is a technical object to provide a white cement composition.

도1은 본 발명과 일반 포틀랜트 시멘트, 백색 포틀랜트 시멘트 및 고로슬래그 시멘트와의 압축강도를 비교한 그래프.Figure 1 is a graph comparing the compressive strength of the present invention and general portland cement, white portland cement and blast furnace slag cement.

본 발명은 클링커를 사용하지 않은 고로슬래그 백색시멘트 조성물에 있어서,고로슬래그 70∼90중량%, 무수석고 5∼12중량%, 이수석고 5∼12중량%, 소석회 0.5∼2중량%, 석회석 1∼5중량%을 함유하여 된 것을 특징으로 하는 고로슬래그 백색시멘트 조성물을 제공하는 것을 목적으로 한다.The present invention is a blast furnace slag white cement composition without using a clinker, blast furnace slag 70-90% by weight, anhydrous gypsum 5-12% by weight, hydrated gypsum 5-12% by weight, calcined lime 0.5-2% by weight, limestone 1- An object of the present invention is to provide a blast furnace slag white cement composition comprising 5 wt%.

또한 본 발명은 고로슬래그 70∼90중량%, 무수석고 5∼12중량%, 이수석고 5∼12중량%, 소석회 0.5∼2중량%, 석회석 1∼5중량% 외에 조경재 0∼2중량%를 더 함유하여 된 것을 특징으로 하는 고로슬래그 백색시멘트 조성물을 제공하는 것을 목적으로 한다.In addition, the present invention is in addition to 70 to 90% by weight of blast furnace slag, 5 to 12% by weight of anhydrous gypsum, 5 to 12% by weight of hydrated gypsum, 0.5 to 2% by weight of lime, 1 to 5% by weight of limestone. An object of the present invention is to provide a blast furnace slag white cement composition characterized in that it contains.

본 발명의 주요한 특징은 조성물로서 클링커를 사용하지 않고 고로슬래그의 잠재수경성을 소석회, 석고 및 조경재의 첨가에 의하여 발현시키는 것으로써 그 원리로써는 먼저 소석회의 인위적인 첨가에 의해 시멘트의 수화초기에 지속적이고도 높은 PH수치(13.2)를 유지함으로써, 빠른 속도로 고로슬래그의 산성피막을 파괴하여 그 내부에 포위되어 있던 SiO4 2-혹은 Al2O3을 용출시켜 소석회 및 석고와의 반응을 촉진, 고로슬래그의 잠재수경성을 발현시키는 것이다.The main feature of the present invention is to express the latent hydraulic properties of blast furnace slag by the addition of slaked lime, gypsum and landscaping without the use of clinker as a composition. By maintaining the pH value (13.2), the acid film of the blast furnace slag is rapidly destroyed and the SiO 4 2- or Al 2 O 3 contained therein is eluted to promote the reaction with hydrated lime and gypsum. It is to express the latent hydraulic.

여기에 석회석 미분말의 혼입에 의해 초기강도가 증가하게 되는데, 이는 분말도 8700cm2/g 이상의 석회석 미분말이 고로슬래그 백색시멘트의 수화반응에서 생성되는 공극을 충전시켜 밀실도를 증가시킬 뿐만 아니라 그 중의 일부는 에트링가이트 중의 황산염을 치환하여 결정체를 형성하는 동시에 치환된 황산염이 고로슬래그의 반응을 촉진하기 때문이다.The initial strength is increased by the incorporation of the limestone fine powder, which is not only increases the stealth by filling the pores generated in the hydration reaction of blast furnace slag white cement with powder of 8700cm 2 / g or more. This is because the sulphate in ettringite is substituted to form crystals, and the substituted sulphate promotes the reaction of blast furnace slag.

또한 조경재의 첨가에 의하여 초기강도가 향상되는데 이는 조경재의 인위적첨가에 의해 고로슬래그의 수화촉진작용을 일으키기 때문이다.In addition, the initial strength is improved by the addition of the landscaping material because the artificial addition of the landscaping material causes the hydration promoting action of the blast furnace slag.

(실시예 1)(Example 1)

본 발명, 클링커를 사용하지 않은 고로슬래그 백색시멘트는 표1과 같이 고로슬래그 86중량%, 이수석고와 무수석고 각각 4중량%, 소석회 1중량%, 석회석 4중량%, 조경재 1중량%(물에 용해시켰음)를 함유하고 있다.The present invention, blast furnace slag white cement without using the clinker is 86% by weight of blast furnace slag, 4% by weight of hydrated gypsum and anhydrous gypsum, 1% by weight of hydrated lime, 4% by weight of limestone, 1% by weight of landscaping material (in water Dissolved).

표1은 클링커를 사용하지 않은 고로슬래그 백색시멘트의 화학조성비를 나타낸 것이다. 표1에서 OPC는 일반 포틀랜트 시멘트를 나타낸 것이고 BSC는 시판되고 있는 타사의 고로슬래그 시멘트를 나타낸다.Table 1 shows the chemical composition ratio of the blast furnace slag white cement without using the clinker. In Table 1, OPC represents general Portland cement and BSC represents blast furnace slag cement from other companies on the market.

화 학 성 분 (%)Chemical component (%) SiO2 SiO 2 Al2O3 Al 2 O 3 Fe2O3 Fe 2 O 3 CaOCaO MgOMgO SO3 SO 3 Ig. lossIg. loss KS규정(백색시멘트)KS Regulations (White Cement) -- -- 0.50.5 -- 5.05.0 3.0(3.5)3.0 (3.5) 3.03.0 S사 OPCS company OPC 19.9019.90 5.815.81 3.003.00 61.5961.59 3.853.85 2.412.41 2.692.69 H사 백색시멘트H company white cement 22.2322.23 12.2712.27 0.280.28 57.1357.13 3.673.67 2.512.51 1.911.91 D사 BSCCompany D BSC 26.7626.76 10.6810.68 1.671.67 52.4752.47 4.414.41 2.472.47 0.630.63 본 발명The present invention 32.5532.55 16.0716.07 0.290.29 43.4843.48 4.494.49 3.093.09 0.230.23

상기와 같은 조성비를 갖는 클링커를 사용하지 않은 고로슬래그 백색시멘트의 성능을 검증하기 위하여, 본 발명에 따른 클링커를 사용하지 않은 고로슬래그 백색시멘트와 보통 포틀랜트 시멘트, 백색 포틀랜트 시멘트 및 현재 시판중인 타사 고로슬래그 시멘트의 경화, 및 압축강도 특성을 실험하였으며 그 결과를 표2와 도1에 나타냈다.In order to verify the performance of the blast furnace slag white cement without using the clinker having the composition ratio as described above, the blast furnace slag white cement without the clinker according to the present invention and ordinary portland cement, white portland cement and other commercially available companies The hardening and compressive strength characteristics of blast furnace slag cement were tested and the results are shown in Table 2 and FIG.

w/c(%)w / c (%) 주도lead 응결congelation 분말도(cm2/g)Powder level (cm2 / g) 안정도(%)Stability (%) 압축강도(kg/cm2)Compressive strength (kg / cm2) 수화열Hydration fever 백색도광전관법White light photoelectric method 초결(분)First minute 종결(시)Closing time 33 77 2828 KS규정백색시멘트KS Regulation White Cement -- -- 60이상60 or more 10이하below 10 3000이상3000 or more 0.80이하0.80 or less 130이상130 or more 200이상More than 200 290이상Over 290 -- 80이상80 or more S사 OPCS company OPC 5050 25.325.3 235235 6:556:55 33303330 0.10.1 234234 279279 375375 -- 60.2060.20 H사백색시멘트H white cement 5050 25.825.8 240240 6:356:35 38703870 0.210.21 210210 281281 369369 -- 86.3486.34 D사 BSCCompany D BSC 5050 26.826.8 295295 9:059:05 42504250 0.030.03 161161 275275 422422 -- 66.4766.47 본 발명The present invention 5050 26.426.4 215215 8:158:15 48004800 0.320.32 190190 289289 388388 -- 87.1687.16

본 발명은 클링커를 사용하지 않고 순전히 산업부산물인 고로슬래그를 주재료로 하여 기타의 조성물에 구입이 용이한 무수석고, 이수석고, 소석회, 석회석 및 조경제를 첨가하므로써 우수한 강도특성과 저렴한 제조단가를 갖는 백색시멘트 조성물을 제공하는것을 기술적 과제로 한다.The present invention has excellent strength characteristics and low manufacturing cost by adding anhydrous gypsum, dihydrate gypsum, slaked lime, limestone and crude economy to other compositions, which are easy to purchase in other compositions, using blast furnace slag which is purely an industrial by-product without using clinker. It is a technical object to provide a white cement composition.

Claims (3)

클링커를 사용하지 않은 고로슬래그 백색시멘트 조성물에 있어서,In the blast furnace slag white cement composition without using a clinker, 고로슬래그 70∼90중량%, 무수석고 5∼12중량%, 이수석고 5∼12중량%, 소석회 0.5∼2중량%, 석회석 1∼5중량%을 함유하여 된 것을 특징으로 하는 고로슬래그 백색시멘트 조성물.Blast furnace slag white cement composition comprising 70 to 90% by weight of blast furnace slag, 5 to 12% by weight of anhydrous gypsum, 5 to 12% by weight of hydrated gypsum, 0.5 to 2% by weight of hydrated lime, and 1 to 5% by weight of limestone. . 제1항에 있어서,The method of claim 1, 상기 고로슬래그 70∼90중량%, 무수석고 5∼12중량%, 이수석고 5∼12중량%, 소석회 0.5∼2중량%, 석회석 1∼5중량%의 조성물로 된 고로슬래그 백색시멘트 조성물에, 조경재 0∼2중량%를 더 함유하여 된 것을 특징으로 하는 고로슬래그 백색시멘트 조성물.In the blast furnace slag white cement composition consisting of 70 to 90% by weight of the blast furnace slag, 5 to 12% by weight of anhydrous gypsum, 5 to 12% by weight of hydrated gypsum, 0.5 to 2% by weight of lime, 1 to 5% by weight of limestone, The blast furnace slag white cement composition, characterized by further containing 0 to 2% by weight. 제1항에 있어서,The method of claim 1, 상기 고로슬래그의 분말도가 4500∼9000cm2범위인 것을 특징으로 하는 고로슬래그 백색시멘트 조성물.The blast furnace slag white cement composition, characterized in that the powder degree of the blast furnace slag is in the range of 4500 ~ 9000 cm 2 .
KR10-2000-0008608A 2000-02-22 2000-02-22 The compound of blast furnace slag-white cement unused clinker KR100404330B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030063973A (en) * 2002-01-25 2003-07-31 배수호 Composition of cement
KR100597972B1 (en) * 2006-01-12 2006-07-06 주식회사트라이포드 High-durability white color concrete composition
CN105016635A (en) * 2015-07-21 2015-11-04 山东宏艺科技股份有限公司 Non- clinker white cement

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FR2952050B1 (en) 2009-11-05 2012-12-14 Saint Gobain Weber France BINDERS FOR BUILDING MATERIALS

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KR20010038096A (en) * 1999-10-22 2001-05-15 김태식 Composite of high-strength blast furnace slag cement at early age

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030063973A (en) * 2002-01-25 2003-07-31 배수호 Composition of cement
KR100597972B1 (en) * 2006-01-12 2006-07-06 주식회사트라이포드 High-durability white color concrete composition
CN105016635A (en) * 2015-07-21 2015-11-04 山东宏艺科技股份有限公司 Non- clinker white cement

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