KR950011357A - Manufacturing method of quickcrete for shotcrete - Google Patents

Manufacturing method of quickcrete for shotcrete Download PDF

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Publication number
KR950011357A
KR950011357A KR1019930021153A KR930021153A KR950011357A KR 950011357 A KR950011357 A KR 950011357A KR 1019930021153 A KR1019930021153 A KR 1019930021153A KR 930021153 A KR930021153 A KR 930021153A KR 950011357 A KR950011357 A KR 950011357A
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KR
South Korea
Prior art keywords
weight
shotcrete
anhydrous gypsum
alkali metal
clinker
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KR1019930021153A
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Korean (ko)
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KR960006223B1 (en
Inventor
현석훈
한기석
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우덕창
쌍용양회공업 주식회사
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Priority to KR1019930021153A priority Critical patent/KR960006223B1/en
Publication of KR950011357A publication Critical patent/KR950011357A/en
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Publication of KR960006223B1 publication Critical patent/KR960006223B1/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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/06—Oxides, Hydroxides
    • 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
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/12—Acids or salts thereof containing halogen in the anion
    • C04B22/126—Fluorine compounds, e.g. silico-fluorine compounds
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C04B22/142—Sulfates
    • C04B22/143—Calcium-sulfate
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C04B40/0042—Powdery mixtures
    • 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
    • C04B20/04—Heat treatment
    • 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
    • C04B2103/0045—Polymers chosen for their physico-chemical characteristics
    • C04B2103/0053—Water-soluble polymers
    • 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
    • C04B2103/12—Set accelerators
    • 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
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite

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

Abstract

본 발명은 알루민산 알칼리 금속염, 알칼리금속의 탄산염, 탄산칼슘, 수산화알루미늄 및 산호알루미늄으로 이루어진 그룹중에서 선택된 CaO, Na2O 및 Al2O3를 구성하는 조합원료에다 불소화합물과 무수석고를 첨가하여 1200∼1500℃에서 혼합소성하여 클링커를 만들고, 여기에 11CaO-7Al2O3-CaF2의 광물 클링커, 무수석고, 팽창제 및 아크릴계 수용성 폴리머를 추가로 혼합분쇄시켜서 숏크리트용 급결제를 제조하는 방법을 제공한다.The present invention adds a fluorine compound and anhydrous gypsum to a combination material comprising CaO, Na 2 O and Al 2 O 3 selected from the group consisting of alkali metal aluminates, alkali metal carbonates, calcium carbonate, aluminum hydroxide and coral aluminum. Mixing firing at 1200-1500 ° C. to produce a clinker, and additionally mixing and grinding 11CaO-7Al 2 O 3 -CaF 2 mineral clinker, anhydrous gypsum, an expanding agent and an acrylic water-soluble polymer to prepare a fastener for shotcrete. to provide.

본 발명에 따른 방법은 종전의 제조법 보다 소송온도를 100∼300℃ 낮은 1200∼1500℃에서 반응을 촉진시키게되고, 고상 소결을 가능하게 하며, 생산성을 20% 이상 향상시키게 되어, 급결성을 갖고 있는 3CaO-2Na2O-5Al2O3광물을 10∼20% 더 생성시키게 된다.The method according to the present invention promotes the reaction at 1200-1500 ° C., which is 100-300 ° C. lower than the conventional manufacturing method, enables solid phase sintering, improves the productivity by 20% or more, and has quickness. It will produce 10-20% more 3CaO-2Na 2 O-5Al 2 O 3 minerals.

또한, 종전의 급결제를 사용할때 보다 30∼40%의 장기 수축 효과를 나타내게 되며, 리바운드량을 20중량% 내외로 감소시킬 수 있어 콘크리트 버럭 처리버가 감소로 숏크리트 공사비를 절감시킬 수 있다. 따라서, 지하철 및 고속 전철 등의 고도의 품질이 요구되는 숏크리트 공사가 가능하게 된다.In addition, it exhibits a long-term shrinkage effect of 30 to 40% than when using the conventional fasteners, and can reduce the rebound amount to about 20% by weight can reduce the shotcrete construction cost by reducing the concrete bucket processing burr. Therefore, shotcrete construction that requires high quality of subways and high-speed trains is possible.

Description

숏크리트용 급결제의 제조방법Manufacturing method of quickcrete for shotcrete

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (4)

알루민산 알칼리 금속염, 알칼리금속의 탄산염, 탄산칼슘, 수산화알루미늄 및 산화알루미늄으로 이루어진 그룹중에서 선택된 CaO, Na2O 및 Al2O3를 구성하는 조합원료에다 불소화합물과 무수석고를 첨가하여1200∼1500℃에서 혼합소성하여 클링커를 만들고, 여기에 11CaO-7Al2O3-CaF2의 광물 클링커, 무수적고, 팽창제 및 아크릴계 수용성 폴리머를 추가로 혼합분쇄시켜서 됨을 특정으로 하는 숏크리트용 급결제의 게조방법.1200-1500 by adding a fluorine compound and anhydrous gypsum to a combination material comprising CaO, Na 2 O and Al 2 O 3 selected from the group consisting of alkali metal aluminates, alkali metal carbonates, calcium carbonate, aluminum hydroxide and aluminum oxide. A method for preparing a shotcrete fastener, characterized in that the mixture is calcined at < RTI ID = 0.0 > C, < / RTI > to form a mixed clinker of 11CaO-7Al 2 O 3 -CaF 2 , anhydrous, expandable agent and acrylic water-soluble polymer. 제1항에 있어서, 상기 소성단계 이전에 불소화합뭍은 5∼15중량%, 무수석고는 2∼10중량%를 조합원료에 첨가하여서 됨을 특정으로 하는 숏크리트용 급결제의 제조방법.The method according to claim 1, wherein before the firing step, 5 to 15% by weight of fluorinated compounds and 2 to 10% by weight of anhydrous gypsum are added to the raw material. 제1항 또는 제2항에 있어서, 상기 블소화합물은 CaF2, Na2SiF6, K2SiF6, MgSiF6또는 CaSiF6를 사용하여서 됨을 특징으로 하는 숏크리트용 급결제의 제조방법.The method of claim 1 or 2, wherein the bloso compound is prepared using CaF 2 , Na 2 SiF 6 , K 2 SiF 6 , MgSiF 6, or CaSiF 6 . 제1항에 있어서, 상기 소성단계 이후에 11CaO-7Al2O3-CaF2광믈 클링커는 10∼40중량%, 무수석고는 1∼4중량%, 팽창제는 5∼20중량%, 아크릴계 수용성 폴리머는 1∼5중량%를 첨가하여서 됨을 특징으로하는 숏크리트용 급결제의 제조방법.According to claim 1, After the firing step 11CaO-7Al 2 O 3 -CaF 2 optical clinker is 10 to 40% by weight, anhydrous gypsum 1 to 4% by weight, swelling agent 5 to 20% by weight, acrylic water-soluble polymer 1 to 5% by weight of the method for producing a shotcrete fastener characterized in that the addition. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930021153A 1993-10-13 1993-10-13 Process for producing set accelerators KR960006223B1 (en)

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Application Number Priority Date Filing Date Title
KR1019930021153A KR960006223B1 (en) 1993-10-13 1993-10-13 Process for producing set accelerators

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Application Number Priority Date Filing Date Title
KR1019930021153A KR960006223B1 (en) 1993-10-13 1993-10-13 Process for producing set accelerators

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KR950011357A true KR950011357A (en) 1995-05-15
KR960006223B1 KR960006223B1 (en) 1996-05-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459801B1 (en) * 1996-06-14 2005-01-17 엠비티홀딩에이.지 Concrete spraying additives
KR100599061B1 (en) * 1995-10-13 2006-09-22 덴끼 가가꾸 고교 가부시키가이샤 Spraying material and spraying method employing it
KR100656744B1 (en) * 2000-11-04 2006-12-12 주식회사 인트켐 Cementitious accelerating admixtures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2744931C (en) 2008-12-04 2018-08-07 Construction Research & Technology Gmbh Accelerator mixture and method of use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100599061B1 (en) * 1995-10-13 2006-09-22 덴끼 가가꾸 고교 가부시키가이샤 Spraying material and spraying method employing it
KR100459801B1 (en) * 1996-06-14 2005-01-17 엠비티홀딩에이.지 Concrete spraying additives
KR100656744B1 (en) * 2000-11-04 2006-12-12 주식회사 인트켐 Cementitious accelerating admixtures

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KR960006223B1 (en) 1996-05-11

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