WO2018074643A1 - Composition de remblai minier comprenant des cendres volantes et des cendres résiduelles avec du dioxyde de carbone fixé provenant d'une combustion à lit fluidité circulant - Google Patents

Composition de remblai minier comprenant des cendres volantes et des cendres résiduelles avec du dioxyde de carbone fixé provenant d'une combustion à lit fluidité circulant Download PDF

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WO2018074643A1
WO2018074643A1 PCT/KR2016/012005 KR2016012005W WO2018074643A1 WO 2018074643 A1 WO2018074643 A1 WO 2018074643A1 KR 2016012005 W KR2016012005 W KR 2016012005W WO 2018074643 A1 WO2018074643 A1 WO 2018074643A1
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weight
parts
fly ash
cement
ash
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PCT/KR2016/012005
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English (en)
Korean (ko)
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이형우
조성현
서신석
박창환
김춘식
윤용상
박태규
남성영
안지환
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한일시멘트 주식회사
한국지질자원연구원
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Publication of WO2018074643A1 publication Critical patent/WO2018074643A1/fr

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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
    • C04B18/06—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
    • 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
    • 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
    • C04B18/061—Ashes from fluidised bed furnaces
    • 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
    • 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
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C04B7/02—Portland cement
    • 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
    • C04B7/32—Aluminous cements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • 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
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • 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 relates to a mineral filler composition comprising carbon black fixed on a circulating fluidized bed boiler, and more particularly to a mineral filler composition containing carbon black fixed on a circulating fluidized bed boiler, which has low fluidity and excellent strength, And a floor material.
  • mine filling method has been widely used as a means of joint stabilization in mining and abandoned mines.
  • mine waste and mineral debris have been used as materials to be charged.
  • sand, sludge, fly ash, cement are used alone or in combination with waste lime and are referred to as a mine filler composition.
  • Korean Patent Laid-Open Publication No. 10-2013-0122162 discloses a low-strength and high-dynamic-strength mining filler composition utilizing mine waste and environmentally friendly fire.
  • mine waste lime having a particle size ranging from 5 mm to 40 mm
  • tailings having a particle size of 5 mm or less
  • 15 to 45 parts by weight of a fire-fighting mortar containing a blast furnace slag powder and a petroleum coke desulfurization gypsum have.
  • the underground mining filling method through the pipeline is aimed at charging the maximum concentration of the high-concentration and high- Pulverized coal boiler fly ash is mixed at an arbitrary ratio and water is mixed therewith to form a composition having a predetermined flowability and strength.
  • Another object of the present invention is to provide a mine filler composition which reduces the amount of carbon dioxide generated in an environmentally friendly manner by utilizing carbon dioxide-immobilized fly ash and flooring.
  • Another object of the present invention is to provide a mine filler composition using the same in order to compensate for the disadvantages of charging due to the lowered strength due to the high unit water content of the carbonated fly ash and the coarse particle size of the carbonated fly ash.
  • the cement may be a Portland cement.
  • the mineral filler composition comprises 5 to 20 parts by weight of the cement; 10 to 30 parts by weight of the fly ash; And 50 to 80 parts by weight of the flooring material.
  • the powdery degree of the fly ash may be 5000 cm 2 / g to 10000 cm 2 / g.
  • the particle size of the flooring may be between 80 ⁇ m and 5000 ⁇ m.
  • the mineral filler composition may further comprise a calcium sulfoaluminate-based expansion material.
  • the mineral filler composition comprises 5 to 20 parts by weight of the cement; 10 to 30 parts by weight of the fly ash; 50 to 80 parts by weight of the flooring material; And 1 to 5 parts by weight of the expanding agent.
  • the mineral filler composition may further include a water reducing agent.
  • the mineral filler composition comprises 5 to 20 parts by weight of the cement; 10 to 30 parts by weight of the fly ash; 50 to 80 parts by weight of the flooring material; And 0.3 to 3 parts by weight of the water reducing agent.
  • the water reducing agent is at least one selected from the group consisting of a polycarboxylate compound, a naphthalin compound, a melamine compound, and a lignin compound have.
  • the mineral filler composition comprises 5 to 20 parts by weight of the cement; 10 to 30 parts by weight of the fly ash; 50 to 80 parts by weight of the flooring material; 1 to 5 parts by weight of the expanding agent; And 0.3 to 3 parts by weight of the water reducing agent.
  • the carbon dioxide immobilization may be calcium carbonate calcium oxide contained in the fly ash and the flooring.
  • a method for producing a low-cost circulating fluidized bed combustion boiler fly ash and a bottom ash by a carbon dioxide immobilization method (mineral carbonation) There is an advantage that the fluidity can be lowered and the occurrence of cracks can be reduced at a low cost.
  • the amount of carbon dioxide generated can be reduced in an environmentally friendly manner by utilizing carbon dioxide-immobilized fly ash and flooring.
  • Example 1 is a photograph showing a device used for measuring shrinkage expansion rate in Experimental Example 1 of the present invention.
  • FIG. 2 is a photograph showing a device (using a cylindrical flow cone having an inner diameter of 750 mm and a height of 1500 mm) used for measuring a flow value in Experimental Example 1 of the present invention.
  • Example 3 is a graph showing the flow rate retention rates of Examples and Comparative Examples according to each time in Experimental Example 1 of the present invention.
  • FIG. 5 is a graph showing compressive strengths of Examples and Comparative Examples according to time in Experimental Example 1 of the present invention.
  • fly ash and the bottom ash are carbon dioxide immobilized.
  • the mine filler composition according to one aspect of the present invention can be used for filling a paste using the above-mentioned mining filler composition among mine filling methods used as a mining cavity stabilization means in an evacuation mine and an abandoned mine, , Which means that it satisfies all of the characteristics of low fluidity degradation, stable shrinkage expansion, and appropriate compressive strength.
  • the cement may be a Portland cement.
  • the Portland cement may be a Portland cement.
  • the cement powder may have a density of 3000 cm 2 / g to 6000 cm 2 / g, but is not limited thereto.
  • the cement When the cement is less than 5 parts by weight, there is a problem of the initial strength reduction and the adhesion reduction of the above-mentioned mineral filler composition, and when the cement is constituted by more than 20 parts by weight, the fluidity of the above- It may be cracked due to shrinkage, and may exhibit an appropriate compression strength or more, which may be uneconomical as compared with the amount of use.
  • fly ash is less than 10 parts by weight, it is not possible to obtain a sufficient effect of reducing the loss of flowability and preventing the occurrence of cracks, and the amount of cement used may be increased, which may be uneconomical. If the fly ash is more than 30 parts by weight, the loss of fluidity and the effect of preventing cracking can not be further increased as compared with the amount used, unnecessary waste may occur and cause problems due to initial strength reduction and slow curing time .
  • the amount of fly ash and cement used may increase, resulting in a decrease in the compressive strength and an increase in the fluidity loss rate, which may be uneconomical.
  • the above-mentioned flooring material is constituted by more than 80 parts by weight, the initial fluidity of the above-mentioned mineral filler composition may be greatly reduced and the filling property of the mine may be lowered.
  • the above-mentioned mineral filler composition is preferably used within the above-mentioned composition range.
  • the fly ash can be obtained through an accelerated carbonation process of a fly ash produced as an industrial by-product in a thermal power plant of a circulating fluidized bed combustion (CFBC)
  • the accelerated carbonation process is a process for carbonizing a high content of calcium oxide (CaO) component present in the fly ash to a calcium carbonate (CaCO 3 ) component.
  • the powdery degree of the fly ash is preferably 5000 cm 2 / g to 10000 cm 2 / g.
  • the fly ash having the above range of powders can attenuate the drawbacks of heat generation, fluidity degradation, and expansion due to the high content of calcium oxide component of the fly ash in the carbonation process.
  • the bottom material may be obtained through an accelerated carbonation process as a by-product generated as an industrial by-product in a thermal power plant of a circulating fluidized bed combustion (CFBC)
  • the accelerated carbonation process is a process for carbonizing a high content of calcium oxide (CaO) component present in the flooring material as a calcium carbonate (CaCO 3 ) component.
  • the carbonation process attenuates the drawbacks of heat generation, fluidity degradation, and overheating due to the high content of calcium oxide component of the flooring, and can act as a part of the aggregate in the mining filler composition with a powdery and particulate mixed material .
  • fly ash and bottom material of a circulating fluidized bed boiler in which carbon dioxide is immobilized are used.
  • carbon dioxide immobilization since calcium oxide is stabilized in a calcium carbonate state by an accelerated carbonation process, there are various advantages in addition to being environmentally friendly and low cost. It is possible to maintain proper strength as a residual calcium oxide component, to reduce the loss rate of fluidity, and to reduce cracking problems due to drying shrinkage.
  • the carbon dioxide immobilization may serve to improve the flow characteristics (fluidity), shrinkage expansion, and compressive strength of the mineral filler composition according to one aspect of the present invention.
  • the particle size of the bottom material is 80 ⁇ to 5000 ⁇ . If the particle size of the bottom material is less than 80 ⁇ , the compressive strength may be lowered due to an increase in the unit water amount. If the particle size of the bottom material exceeds 5000 ⁇ , the initial fluidity of the mineral filler composition may be greatly reduced, The filling property may be reduced, and the surface roughness may increase.
  • the mineral filler composition according to one aspect of the present invention may further comprise calcium sulfoaluminate-based expansion material.
  • the amount of the expanding agent When the amount of the expanding agent is less than 1 part by weight, the amount of the expanding agent may be too small to exhibit an expansion effect. If the amount of the expanding agent is more than 5 parts by weight, over- .
  • the expander is a product based on low-temperature firing, which imparts 4CaO ⁇ 3Al 2 O 3 ⁇ SO 3 component to the Portland cement clinker mineral and improves the low shrinkage performance. It can reduce the cracks in the structure and increase the longevity, .
  • the mining filler composition according to one aspect of the present invention can obtain the effect of a closed filler material capable of high-density filling using a calcium sulfoaluminate-based expansion material capable of exhibiting drying shrinkage, crack compensation, and expansion performance.
  • the mineral filler composition according to one aspect of the present invention may further include a water reducing agent.
  • the water reducing agent may be at least one kind selected from the group consisting of a polycarboxylate compound, a naphthalin compound, a melamine compound and a lignin compound, and may be in powder form .
  • the water reducing agent may serve to improve initial fluidity by dispersing cement particles at an initial stage in the reaction of the mineral filler composition component.
  • the amount of the water reducing agent is less than 0.3 parts by weight, the amount of the water reducing agent may be excessively small and the fluidity improving effect may not be exhibited.
  • the water reducing agent is composed of more than 3 parts by weight, It is preferable to use it within the above-mentioned range.
  • the above-mentioned mineral filler composition can achieve properties satisfying both low fluidity loss ratio, stable shrinkage expansion, and appropriate compressive strength.
  • Example 1 Cement 10 / CFBC Carbonate fly ash 20 / CFBC carbonated flooring 70
  • the fly ash produced from the coal-fired power plant of the CFBC system is obtained through an accelerated carbonation process.
  • the high-content calcium oxide component present in the fly ash is carbonated with calcium carbonate, 20 g / cm < 2 > / g; (CFBC) type thermal power plant, which is produced by the carbonization of the bottom as generated by the industrial byproducts.
  • the high calcium oxide content in the bottom ash is carbonized as calcium carbonate, And 70 parts by weight of a flooring having a particle size of from 1000 mu m to 1000 mu m.
  • Example 1 changing the flooring parts 68 by weight, and calcium sulfo aluminate (4CaO ⁇ 3Al 2 O 3 ⁇ SO 3) expandable material 2 parts by weight, except that to further configured including and, as in Example 1 And has the same composition.
  • Example 1 Except that the flooring material was changed to 69.3 parts by weight in Example 1 and 0.7 parts by weight of a water reducing agent based on a polycarboxylate polymer and having a specific gravity of 1.1 g / cm < 3 > And a mineral filler composition was prepared in the same manner as in Example 1.
  • Example 1 changing the bottom ash 67.3 parts by weight, and calcium sulfo aluminate (4CaO ⁇ 3Al 2 O 3 ⁇ SO 3) 2 parts by weight of the expandable material; And 0.7 part by weight of a water reducing agent based on a polycarboxylate polymer and having a specific gravity of 1.1 g / cm < 3 > without air entraining agent, was constructed as in Example 1, Filler composition.
  • a composition was constructed in the same manner as in Example 1, except that the carbonated CFBC boiler fly ash and flooring were replaced with carbonated CFBC boiler fly ash and flooring in place of the carbonated CFBC boiler fly ash and flooring.
  • a composition was constructed in the same manner as in Example 1, except that the carbonated CFBC boiler fly ash was replaced with a carbonated CFBC boiler fly ash instead of the carbonated CFBC boiler fly ash.
  • a composition was constructed in the same manner as in Example 1, except that the CFBC boiler flooring in Example 1 was replaced with a carbonated CFBC boiler flooring in place of the carbonated CFBC boiler flooring.
  • Example 1 10.00 20.00 70.00
  • Example 2 10.00 20.00 68.00 2.00
  • Example 3 10.00 20.00 69.3 0.70
  • Example 4 10.00 20.00 67.3 2.00 0.70 Comparative Example 1 100.00 Comparative Example 2 35.00 65.00 Comparative Example 3 10.00 20.00 70.00 Comparative Example 4 10.00 70.00 20.00 Comparative Example 5 10.00 20.00 70.00
  • the unit water content, flow value (fluidity), unit weight, shrinkage expansion and compressive strength of the compositions provided in Examples 1 to 4 and Comparative Examples 1 to 5 were measured and are shown in Table 2 below.
  • Comparative Example 2 which is a fly ash composition of cement and general pulverized coal boiler
  • Examples 1 to 4 exhibited good compressive strength and stable shrinkage and expansion rates.
  • Comparative Example 5 in which the CFBC boiler bottom material was mixed with the carbon dioxide-immobilized CFBC boiler bottom material showed a large decrease in the flow rate over time, as compared with Examples 1 to 4, and the overexpansion was observed in the shrinkage expansion rate test.
  • the mineral filler compositions of Examples 1 to 4 of the present invention exhibited a high flow retention ratio, a low shrinkage expansion rate and a good compressive strength as compared with Comparative Examples.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

Un mode de réalisation de la présente invention concerne une composition de remblai minier comprenant : du ciment et des cendres volantes et des cendres résiduelles provenant d'une chaudière à combustion à lit fluidisé circulant, le dioxyde de carbone étant fixé dans les cendres volantes et les cendres résiduelles.
PCT/KR2016/012005 2016-10-21 2016-10-25 Composition de remblai minier comprenant des cendres volantes et des cendres résiduelles avec du dioxyde de carbone fixé provenant d'une combustion à lit fluidité circulant WO2018074643A1 (fr)

Applications Claiming Priority (2)

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KR1020160137332A KR101836372B1 (ko) 2016-10-21 2016-10-21 순환유동층 보일러의 이산화탄소가 고정화된 비산재 및 바닥재를 포함하는 광산채움재 조성물
KR10-2016-0137332 2016-10-21

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Cited By (2)

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CN110143787A (zh) * 2019-06-19 2019-08-20 山东黄金矿业科技有限公司充填工程实验室分公司 一种低成本废石胶结充填材料组分与配比设计方法
CN110256639A (zh) * 2019-07-19 2019-09-20 熊威 一种用于cfbc固硫灰的高效减水剂的制备方法

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KR102081882B1 (ko) 2018-04-17 2020-02-26 주식회사 정우소재 광산충전재 조성물 및 이를 이용한 광산 공동의 충전방법
KR101903463B1 (ko) * 2018-04-24 2018-10-02 한일시멘트 주식회사 광산채움재 조성물 및 지반 안정재 조성물
KR102144340B1 (ko) 2019-10-22 2020-08-14 삼성물산 주식회사 산업부산물을 이용한 고유동-저강도 채움재 조성물
KR102478241B1 (ko) * 2020-09-01 2022-12-15 (주)대우건설 산업부산물을 활용한 구조물 되메우기용 고유동 채움재 조성물
KR102231850B1 (ko) 2020-11-10 2021-03-26 주식회사 에코이엠씨 고유동성 및 고강도를 갖는 폐광산 공동 채움재 조성물 및 이를 이용한 공동 충전 시공방법

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