WO2015199291A1 - Composition de béton de type à acquisition précoce de la résistance, à fluidité élevée, à faible chaleur, à haute durabilité et de type à réduction de dioxyde de carbone - Google Patents

Composition de béton de type à acquisition précoce de la résistance, à fluidité élevée, à faible chaleur, à haute durabilité et de type à réduction de dioxyde de carbone Download PDF

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Publication number
WO2015199291A1
WO2015199291A1 PCT/KR2014/010691 KR2014010691W WO2015199291A1 WO 2015199291 A1 WO2015199291 A1 WO 2015199291A1 KR 2014010691 W KR2014010691 W KR 2014010691W WO 2015199291 A1 WO2015199291 A1 WO 2015199291A1
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WO
WIPO (PCT)
Prior art keywords
weight
parts
carbon dioxide
concrete composition
blast furnace
Prior art date
Application number
PCT/KR2014/010691
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English (en)
Korean (ko)
Inventor
김용직
김영진
김인규
조준희
안태호
전용수
Original Assignee
(주)대우건설
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by (주)대우건설 filed Critical (주)대우건설
Publication of WO2015199291A1 publication Critical patent/WO2015199291A1/fr

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Classifications

    • 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
    • C04B14/26—Carbonates
    • C04B14/28—Carbonates of calcium
    • 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
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • 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
    • 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
    • C04B28/04—Portland cements
    • 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

Definitions

  • the present invention reduces the generation of carbon dioxide by replacing a large amount of cement by industrial by-products such as blast furnace slag powder, while expressing early strength by the addition of blast furnace slag powder, such as high flowability, low heat generation and high durability by additives. It relates to a concrete composition.
  • the present invention has been made to solve the above problems is to provide a concrete composition in which a large amount of cement is replaced by industrial by-products and at the same time, while expressing early strength, high fluidity, low heat generation and high durability.
  • Early strength expression type high flow low heat high durability carbon dioxide reduced concrete composition of the present invention is 10 to 40 parts by weight of fly ash, 10 to 40 parts by weight of Portland cement, 10 to 40 parts by weight of calcium carbonate based on 100 parts by weight of blast furnace slag powder , 5 to 20 parts by weight of powder, 1 to 10 parts by weight of activator, 1 to 3 parts by weight of a fluidizing agent, characterized in that to maximize the initial strength by using a three- table admixture SB 1000FL that can ensure viscosity and fluidity Can be.
  • the activator may be added with a mixture of sodium, calcium and silicic acid.
  • 1 to 5 parts by weight of electrically refined slag, 0.03 to 1 part by weight of ammonium chloride, and 1 to 3 parts by weight of hydroxylpropylmethylcellulose-based high viscosity component powder may be added to 100 parts by weight of blast furnace slag powder.
  • 0.5 to 1 part by weight of sodium tripolyphosphate (Na 5 P 3 O 10 ) and 0.5 to 1 part by weight of citrate may be added to 100 parts by weight of blast furnace slag powder.
  • catechin may be added to 100 parts by weight of blast furnace slag powder.
  • the concrete composition of the present invention can reduce the generation of carbon dioxide by substituting a large amount of industrial by-products instead of cement, and increases the amount of blast furnace slag powder to be expressed in early strength, thereby reducing the fluidity caused by the use of blast furnace slag.
  • the solution is solved by the addition of a fluidizing agent, and the use of fly ash, stone powder, calcium carbonate, etc. in accordance with early strength expression has the advantage of expressing strength and durability as well as a low heat generation function.
  • Early strength expression type high flow low heat high durability carbon dioxide reduced concrete composition of the present invention is 10 to 40 parts by weight of fly ash, 10 to 40 parts by weight of Portland cement, 10 to 40 parts by weight of calcium carbonate based on 100 parts by weight of blast furnace slag powder , 5 to 20 parts by weight of stone powder, 1 to 10 parts by weight of activator, characterized in that it comprises 1 to 3 parts by weight of a fluidizing agent.
  • the present invention is a carbonate blast furnace slag (Blaast Furnace Slag, BFS) generated in the process of manufacturing pig iron in steel mill blast furnace, fly ash (FA) generated from the thermal power plant (FA), carbon dioxide generated as an industrial by-product from cogeneration plants It uses calcium (CaCO 3) and stone powder (LSP) generated in the quarry as a binder composition to reduce the amount of cement to function as a carbon dioxide reduction type, and to increase the amount of blast furnace slag to show early strength.
  • a fluidizing agent Is to be expressed.
  • the activator must be capable of activating blast furnace slag, fly ash and other industrial by-products as a binder composition, and a binder having polymerizable components such as SiO 2 , CaO, and Al 2 O 3 in the binder of the industrial by-products. It is characterized in that only applicable to.
  • the polymerization reaction is one of the largest reactions that can be induced in the present invention as a reaction to form a geopolymer (GeoPolymer), in addition to the reaction to promote the hydration reaction.
  • a mixture of sodium, calcium and silicic acid based activators it is reasonable to use a mixture of sodium, calcium and silicic acid based activators.
  • the polymerization reaction is a Si-Al-containing mineral reacts with NaOH or KOH
  • fly ash is a binder that can be activated by polymerization because the content of SiO 2 and Al 2 O 3 is relatively high.
  • an alkaline environment or high temperature curing or other method having a pH of 13 or higher is required to break the film to promote the fly ash reaction.
  • the blast furnace slag powder is blended in a large amount, and thus the constituents of the blast furnace slag contain SiO 2 , Al 2 O 3 , especially CaO (generally 40% or more of the blast furnace slag). Therefore, even when the fly ash is mixed due to the formation of a strong alkaline substance such as Ca (OH) 2 by hydration and polymerization at room temperature, the glass film of the fly ash is mixed, the polymerization reaction occurs at room temperature and the strength is greatly expressed. do.
  • the composition of the present invention contains 1 to 5 parts by weight of electrically refining slag, 0.03 to 1 part by weight of ammonium chloride, and hydroxylpropyl methylcellulose-based high viscosity component in addition to 100 parts by weight of blast furnace slag powder. 3 parts by weight may be further blended.
  • the reason for further blending the composition is that the present invention added a fluidizing agent in order to control the problem that the fluidity is reduced with the use of blast furnace slag powder, the fluidity is secured by the addition of such a fluidizing agent There is a problem that the strength may be reduced due to the excessive occurrence, there is a problem that the durability may be lowered to further mix the refinery slag and ammonium chloride with the electric furnace as described above.
  • the present invention adds calcium carbonate and stone powder as a filler function to ensure durability, and in addition to the thickener to secure a tight structure by thickening between compositions.
  • a hydroxylpropylmethylcellulose-based high viscosity component as a thickener.
  • a thickening effect is generated early in the process of stirring with other compositions, and sufficient stirring between the compositions is not achieved. Since the uniformity of the physical properties is not secured, there is a problem that durability is lowered.
  • the hydroxylpropyl methyl cellulose high viscosity component powder is used.
  • the hydroxyl profile methyl cellulose high viscosity component powder is a water-soluble polymer in methyl cellulose (MC), unlike general methyl cellulose (MC). Introduced, the instantaneous thickening effect does not appear upon mixing of the composition, and the time when the thickening effect is delayed is delayed because methyl cellulose (MC) exhibits a thickening effect after the water-soluble polymer is dissolved.
  • the hydroxylpropyl methyl cellulose-based high viscosity component powder provides a stirring time so that the mixing between the compositions can be made uniformly, and after the composition of the present invention is sufficiently mixed, the viscosity is expressed to maximize the formability while maximizing the formability. This is to increase the durability.
  • composition of the present invention in addition to the above-mentioned composition, 0.5 to 1 part by weight of sodium tripolyphosphate (Na 5 P 3 O 10 ) and 0.5 to 1 part by weight of citrate may be added to 100 parts by weight of blast furnace slag powder. Do.
  • the present invention enables the application of crude steel concrete by reacting with the CaO component of the blast furnace slag by adding a large amount of blast furnace slag, so that the quenching phenomenon is difficult to control, and as a preventive measure, sodium tripolyphosphate ( Na 5 P 3 O 10 ) is used as a retardant to delay the alkali activation reaction.
  • the sodium component is eluted in the concrete and the delay effect is also excessive, resulting in a large decrease in strength.
  • the sodium component is limited as described above. It is difficult to suppress and it limits in this way.
  • the reason for further blending the citrate is that the present invention is the initial strength is enhanced by the addition of a large amount of blast furnace slag powder, the heat of hydration can be increased accordingly, the citrate is endothermic reaction by adding more citrate By doing so to absorb the heat of the hydration reaction to reduce the heat of hydration.
  • composition of the present invention it is reasonable to further mix 0.01-1 part by weight of catechin with respect to 100 parts by weight of blast furnace slag powder.
  • the reason why the catechin is blended is that when bubbles are generated by the use of a fluidizing agent, the bubbles are removed by the above-described electric refining slag and ammonium chloride, but the remaining bubbles are exploded afterwards to the gas contained in the bubbles. This causes oxidation inside the paste, which in turn leads to a decrease in durability, whereby catechins are combined to prevent oxidation.
  • Table 1 shows the compounding ratio according to the basic example of the present invention
  • Table 2 below shows the compounding ratio of the binder in Table 1.
  • AD uses three-tablet admixture SB 1000FL
  • Example 1 was tested by varying the weight ratio of blast furnace slag powder, fly ash, stone powder, calcium carbonate for Portland cement as shown in Table 3 below, the experimental results for the slump and compressive strength in Table 4 and Table 5 Presenting.
  • samples 4, 5, and 6 can be regarded as an appropriate mixing ratio of blast furnace slag powder in terms of workability and strength, and in addition, fly ash, stone powder, and calcium carbonate are advantageous in terms of workability and strength. Able to know.
  • Example 2 was tested by varying the mixing ratio of sodium, calcium and silicic acid as an activator as shown in Table 6.
  • Table 7 and Table 8 show the experimental results for the slump and the compressive strength.
  • Example 3 was prepared in the same manner as the sample 7 of Example 2 as shown in Table 9, but varying the mixing ratio of the various additives (A, B, C, D) to prepare a sample.
  • Sample 1 is the same formulation as Sample 7 of Example 2, and the amount of fly ash, stone powder, and calcium carbonate was adjusted according to the blending of various additives.
  • additive A is an electric furnace refining slag and ammonium chloride mixture (mixed at a weight ratio of 3: 1)
  • B is hydroxylpropylmethylcellulose type high viscosity powder
  • C is sodium tripolyphosphate
  • D is citrate. The results of each experiment are presented in Tables 10 to 12.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne une composition de béton de type à acquisition précoce de la résistance, à fluidité élevée, à faible chaleur, à haute durabilité et de type à réduction de dioxyde de carbone, comprenant : 10 à 40 parties en poids de cendres volantes ; 10 à 40 parties en poids de ciment Portland ; 10 à 40 parties en poids de carbonate de calcium ; 5 à 20 parties en poids de poudre de pierre broyée ; 1 à 10 parties en poids d'un activateur ; et 1 à 3 parties en poids d'un superplastifiant, sur la base de 100 parties en poids de laitier de haut-fourneau granulé broyé (GGBFS).
PCT/KR2014/010691 2014-06-25 2014-11-07 Composition de béton de type à acquisition précoce de la résistance, à fluidité élevée, à faible chaleur, à haute durabilité et de type à réduction de dioxyde de carbone WO2015199291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140078443A KR101584324B1 (ko) 2014-06-25 2014-06-25 조기강도 발현형 고유동 저발열 고내구성 이산화탄소 저감형 콘크리트 조성물
KR10-2014-0078443 2014-06-25

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WO2015199291A1 true WO2015199291A1 (fr) 2015-12-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007579A (zh) * 2016-05-23 2016-10-12 青神鑫统领建材有限公司 一种含机制砂石粉和收尘石粉的混凝土及其制备方法
WO2018026711A1 (fr) 2016-08-04 2018-02-08 Geopolymer Solutions LLC Béton de fusion à froid
CN110304851A (zh) * 2019-07-19 2019-10-08 迁安威盛固废环保实业有限公司 一种含有精炼渣的全固废胶凝材料及其制备方法
US10954162B1 (en) 2019-09-24 2021-03-23 Geopolymer Solutions, LLC Protective coating
US11384018B2 (en) * 2017-12-08 2022-07-12 Ecocem Materials Limited Ground granulated blast furnace slag based binder, dry and wet formulations made therefrom and their preparation methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001146458A (ja) * 1999-11-16 2001-05-29 Takenaka Komuten Co Ltd 急硬性高流動セメント組成物
JP2005335994A (ja) * 2004-05-26 2005-12-08 Fujita Corp 食品添加コンクリート、医薬品添加コンクリート、およびコンクリート用添加材
JP4439816B2 (ja) * 2002-10-03 2010-03-24 花王株式会社 コンクリート混和剤
KR20120113476A (ko) * 2011-04-05 2012-10-15 (주)대우건설 친환경 저발열 혼합시멘트 조성물과, 이를 이용한 친환경 저발열 콘크리트 및 이의 제조방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100888534B1 (ko) 2007-08-08 2009-03-11 한국전력공사 시멘트 조성물 및 고유동 콘크리트 제조방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001146458A (ja) * 1999-11-16 2001-05-29 Takenaka Komuten Co Ltd 急硬性高流動セメント組成物
JP4439816B2 (ja) * 2002-10-03 2010-03-24 花王株式会社 コンクリート混和剤
JP2005335994A (ja) * 2004-05-26 2005-12-08 Fujita Corp 食品添加コンクリート、医薬品添加コンクリート、およびコンクリート用添加材
KR20120113476A (ko) * 2011-04-05 2012-10-15 (주)대우건설 친환경 저발열 혼합시멘트 조성물과, 이를 이용한 친환경 저발열 콘크리트 및 이의 제조방법

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007579A (zh) * 2016-05-23 2016-10-12 青神鑫统领建材有限公司 一种含机制砂石粉和收尘石粉的混凝土及其制备方法
WO2018026711A1 (fr) 2016-08-04 2018-02-08 Geopolymer Solutions LLC Béton de fusion à froid
US10196310B2 (en) 2016-08-04 2019-02-05 Geopolymer Solutions LLC Cold fusion concrete
US11384018B2 (en) * 2017-12-08 2022-07-12 Ecocem Materials Limited Ground granulated blast furnace slag based binder, dry and wet formulations made therefrom and their preparation methods
CN110304851A (zh) * 2019-07-19 2019-10-08 迁安威盛固废环保实业有限公司 一种含有精炼渣的全固废胶凝材料及其制备方法
US10954162B1 (en) 2019-09-24 2021-03-23 Geopolymer Solutions, LLC Protective coating

Also Published As

Publication number Publication date
KR20160000989A (ko) 2016-01-06
KR101584324B1 (ko) 2016-01-14

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