KR20180001628A - Mortar composition using slime as a filler and mortar using thereof - Google Patents
Mortar composition using slime as a filler and mortar using thereof Download PDFInfo
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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
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
- C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate
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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
- 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
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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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/287—Polyamides
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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
- 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
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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
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
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- 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
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Abstract
본 발명은 슬라임을 충진제로 적용하고, β-반수석고를 주성분으로 하는 모르타르 조성물 및 이를 이용한 모르타르에 관한 것으로서, 보다 상세하게는 산업 부산물인 β-반수석고에 후기 강도를 보완할 수 있는 슬래그미분말과 건조수축 감소 및 균열방지를 위한 무수석고 및 백시멘트, 결합재 입자 사이의 공극을 채워 입자간 최밀충전 기능을 부여하는 슬라임, 시공성능 및 응결시간의 조절을 위한 감수제 및 지연제를 첨가함으로써 친환경적이고 양생기간이 짧아 경제성이 우수하며, 일정한 강도를 확보할 수 있는 모르타르 조성물 및 이를 이용한 모르타르에 관한 것이다.The present invention relates to a mortar composition comprising a slurry as a filler, a β-hemihydrate gypsum as a main component, and a mortar using the mortar composition, and more particularly, to a slag powder which can supplement late strength to β- Anhydrous gypsum and white cement for reducing drying shrinkage and cracking, slime for filling the gap between binder particles to give the highest filling capacity among the particles, environment-friendly and curing by adding water reducing agent and retarding agent for control of setting performance and setting time The present invention relates to a mortar composition and a mortar using the mortar composition.
Description
본 발명은 슬라임을 충진제로 적용하고, β-반수석고를 주성분으로 하는 모르타르 조성물 및 이를 이용한 모르타르에 관한 것으로서, 보다 상세하게는 산업 부산물인 β-반수석고에 후기 강도를 보완할 수 있는 슬래그미분말과 건조수축 감소 및 균열방지를 위한 무수석고 및 백시멘트, 결합재 입자 사이의 공극을 채워 입자간 최밀충전 기능을 부여하는 슬라임, 시공성능 및 응결시간의 조절을 위한 감수제 및 지연제를 첨가함으로써 친환경적이고 양생기간이 짧아 경제성이 우수하며, 일정한 강도를 확보할 수 있는 모르타르 조성물 및 이를 이용한 모르타르에 관한 것이다.The present invention relates to a mortar composition comprising a slurry as a filler, a β-hemihydrate gypsum as a main component, and a mortar using the mortar composition, and more particularly, to a slag fine powder capable of supplementing late strength with β- Anhydrous gypsum and white cement for reducing drying shrinkage and cracking, slime for filling the gap between binder particles to give the highest filling capacity among the particles, environment-friendly and curing by adding water reducing agent and retarding agent for control of setting performance and setting time The present invention relates to a mortar composition and a mortar using the mortar composition.
공동주택 등에 사용되는 바닥난방용 모르타르는 경제성과 편의성을 이유로 시멘트, 규사골재, 혼화제를 주성분으로 하는 시멘트계 모르타르가 광범위하게 사용되고 있다. 그러나 시멘트계 모르타르는 긴 양생시간으로 인해 시공기간이 길며, 건조수축에 따른 균열, 초기강도 발현의 저하 등이 발생하는 문제점이 있다. 따라서, 이러한 단점을 개선하고자 화력발전소에서 발생되는 부산물인 탈황석고를 이용하고자 하는 연구가 진행되고 있다.For floor heating mortar used in apartment houses, cement mortar containing cement, silica sand and admixture as main components is widely used for economic and convenience reasons. However, the cement mortar has a problem that the construction period is long due to a long curing time, cracks due to drying shrinkage, deterioration of initial strength development, and the like. Therefore, in order to overcome such disadvantages, researches are being conducted to use desulfurization gypsum, which is a byproduct generated in a thermal power plant.
일반적으로 석고분말은 이수석고(CaSO4·2H2O), 반수석고(α형, β형 CaSO4·1/2H2O), Ⅲ형, Ⅱ형 무수석고 등이 있다. 이 중, α형-반수석고(황산칼슘 알파-반수화물, calcium sulfate alpha-hemihydrate)는 100-150℃의 온도조건에서 오토클레이브(Autoclave) 반응기를 이용하여 제조되기 때문에 생산비가 높아, 의료용이나 공업용 등 특수용도에 한정되어 있다. 반면 β형 반수석고(황산칼슘 베타-반수화물, calcium sulfate Beta-hemihydrate, 이하 β-반수석고)는 그 제조비용이 저렴하나, 강도 저하를 이유로 주로 석고보드와 시멘트 응결조절제로 사용하고 있는 실정이다.In general, the gypsum powder is CaSO 4 · 2H 2 O, semi -gypsum (α-type, β-type CaSO 4 · 1 / 2H 2 O), Ⅲ-type and Ⅱ-type anhydrous gypsum. Among them, the α-hemihydrate (calcium sulfate alpha-hemihydrate) is produced by using an autoclave reactor at a temperature of 100-150 ° C. Therefore, the production cost is high, And so on. On the other hand, β-hemihydrate gypsum (calcium sulfate beta-hemihydrate, β-hemihydrate, hereinafter referred to as β-hemihydrate) is inexpensive to manufacture but is mainly used as a gypsum board and cement modifier .
탈황석고를 가압수열법으로 처리하여 제조한 α-반수석고를 이용한 모르타르 조성물이 개시된 바 있으나(예컨대, 한국 등록특허 특허 제 10-2009-0114192호 및 제 10-2005-01255541호), 바닥난방재 등에 광범위하게 적용되기 위해서는 시멘트계 모르타르와 같이 대량생산될 필요성이 있기 때문에, 대량 생산에 한계가 있는 α-반수석고를 주성분으로 하는 모르타르의 시공율은 낮은편이다. 그러나, 향후 전력수급을 위한 화력발전소의 증가 및 배연탈황설비의 증설로 인하여 탈황석고의 생산량이 급격하게 증가할 것으로 예상된다.A mortar composition using an α-hemihydrate gypsum prepared by treating a desulfurized gypsum with a hydrothermal method has been disclosed (for example, Korean Patent No. 10-2009-0114192 and No. 10-2005-01255541) , There is a need to mass-produce such as cement mortar, so that the construction rate of mortar composed mainly of α-hemihydrate gypsum, which is limited in mass production, is low. However, the production of desulfurization gypsum is expected to increase sharply due to the increase in thermal power plants for power supply and expansion of flue gas desulfurization facilities.
따라서, 소성비용이 낮고 대량생산이 가능한 산업 부산물인 β-반수석고를 주성분으로 하여 양생시간을 단축함으로써 경제성을 확보할 수 있으며, 친환경적이면서 기존의 탈황석고를 이용한 모르타르의 물성을 보완할 수 있다. 여기에 충진제로 슬라임 적용 시 결합재 간의 입자 사이에 공극을 채워주는 최밀충전효과로 압축강도 상승효과를 확보할 수 있는 모르타르 조성물의 개발이 요구된다.Therefore, it is possible to secure economical efficiency by shortening the curing time by using β-hemihydrate gypsum, which is an industrial by-product which has a low firing cost and can mass-produce, as a main component, and can complement the physical properties of the mortar using the environmentally friendly and desulfurized gypsum. It is required to develop a mortar composition capable of securing a compressive strength increasing effect by filling the gap between particles of the binder when the slime is applied as a filler.
본 발명은 상기와 같은 종래기술의 문제점을 해결하고자 한 것으로, 산업 부산물인 β-반수석고에 후기 강도를 보완할 수 있는 슬래그미분말과 건조수축 감소 및 균열방지를 위한 무수석고 및 백시멘트, 결합재 입자 사이의 공극을 채워 입자간 최밀충전 기능을 부여하는 슬라임, 시공성능 및 응결시간의 조절을 위한 감수제 및 지연제를 첨가함으로써, 친환경적이고 양생기간이 짧아 경제성이 우수하며, 상승된 압축강도를 확보할 수 있는 모르타르 조성물 및 이를 이용한 모르타르를 제공하는 것을 기술적 과제로 한다.Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a slag fine powder capable of supplementing late- Slurry that gives the highest filling capacity between particles by filling the gap between the particles, and addition of a water reducing agent and a retarding agent for controlling the performance and the setting time of the slurry, it is environmentally friendly, has a short curing period and is excellent in economy, And a mortar using the mortar composition.
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로, β-반수석고 50 - 60 중량부; 무수석고 1 - 6중량부; 백시멘트 1 - 6 중량부; 슬래그미분말 1 - 25 중량부; 슬라임 1 - 10 중량부; 탄산칼슘 1 - 20 중량부; 및 지연제, 소포제, 증점제, 유동화제, 수지 및 이들의 조합으로부터 선택되는 혼화제 0.01 - 5 중량부를 포함한다. The mortar composition of the present invention comprises, based on 100 parts by weight of the total composition, 50 to 60 parts by weight of? 1 - 6 parts by weight of anhydrous gypsum; 1 to 6 parts by weight of white cement; 1 to 25 parts by weight of a slag fine powder; 1 to 10 parts by weight of slime; 1 to 20 parts by weight of calcium carbonate; And 0.01 to 5 parts by weight of an admixture selected from retardants, defoamers, thickeners, fluidizers, resins and combinations thereof.
본 발명의 모르타르는 상기 모르타르 조성물을 이용하여 형성된다.The mortar of the present invention is formed using the mortar composition.
본 발명에 따른 모르타르 조성물은 친환경적이고 양생기간이 짧아 경제성이 우수하며, 슬라임을 포함함에 따라 적합한 작업성, 압축강도 및 셀프레벨링성을 확보할 수 있다.The mortar composition according to the present invention is eco-friendly, has a short curing period and is excellent in economy, and it can secure suitable workability, compressive strength and self-leveling property by including slime.
이하, 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로, β-반수석고 50 - 60 중량부; 무수석고 1 - 6중량부; 백시멘트 1 - 6 중량부; 슬래그미분말 1 - 25 중량부; 슬라임 1 - 10 중량부; 탄산칼슘 1 - 20 중량부; 및 지연제, 소포제, 증점제, 유동화제, 수지 및 이들의 조합으로부터 선택되는 혼화제 0.01 - 5 중량부를 포함한다. The mortar composition of the present invention comprises, based on 100 parts by weight of the total composition, 50 to 60 parts by weight of? 1 - 6 parts by weight of anhydrous gypsum; 1 to 6 parts by weight of white cement; 1 to 25 parts by weight of a slag fine powder; 1 to 10 parts by weight of slime; 1 to 20 parts by weight of calcium carbonate; And 0.01 to 5 parts by weight of an admixture selected from retardants, defoamers, thickeners, fluidizers, resins and combinations thereof.
본 발명의 모르타르 조성물은 α-반수석고를 전혀 사용하지 않으며, β-반수석고의 혼입량이 전체 조성물 100중량부에 대해 50 - 60중량부(예컨대 52 - 58중량부)이므로, 부산물 활용을 극대화할 수 있다. β-반수석고의 사용량이 50중량부 미만이면 산업부산물을 적게 활용하여 제조 원가가 높아지는 문제가 있고, 60중량부를 초과하면 혼수량이 증가하여 요구하는 압축강도를 얻을 수 없다.The mortar composition of the present invention does not use any α-hemihydrate gypsum, and since the amount of β-hemihydrate gypsum incorporated is 50 to 60 parts by weight (eg, 52 to 58 parts by weight) relative to 100 parts by weight of the total composition, . When the amount of β-hemihydrate gypsum is less than 50 parts by weight, there is a problem that the manufacturing cost is increased by utilizing less by-products of the industry. When the amount of β-hemihydrate is more than 60 parts by weight, the amount of mixed water increases and the required compressive strength can not be obtained.
β-반수석고, 무수석고, 백시멘트 및 슬래그미분말을 혼합한 후 물을 첨가하면 수화반응에 의해 에트링가이트(ettringite, 칼슘 설포 알루미네이트(Calcium Sulfor Aluminate, 3CaO·Al2O33CaSO4·32H2O)와 같은 수화물을 생성시키며, 슬래그미분말의 잠재수경성으로 인하여 장기간에 걸쳐 강도가 증가하므로, β-반수석고의 장기강도가 하락하는 단점을 획기적으로 개선할 수 있다.When water is added after the mixing of β-hemihydrate, anhydrous gypsum, white cement and slag fine powder, the hydration reaction causes ettringite (Calcium Sulfor Aluminate, 3CaO · Al 2 O 3 3CaSO 4 · 32H 2 O), and the strength of the slag fine powder is increased over a long period of time owing to the latent hydraulic properties of the slag fine powder, so that the disadvantage that the long-term strength of the β-hemihydrate gypsum is lowered can be drastically improved.
특별히 한정하지 않으나, 상기 β-반수석고는 평균 입경이 10 - 50㎛이고, 결정수 1 - 6중량%를 포함할 수 있다. 예를 들어, 화력발전소로부터 평균 입경이 30 - 60㎛이고, 자유수분 10%, 순도가 90% 이상인 탈황석고를 입수하여, 1차로 케이즈 밀(Case Mill)에서 80 - 90℃, 2차로 임팩트 밀(Impact Mill)에서 150 - 160℃로 소성 및 분쇄 공정을 거쳐서, 평균 입경이 10 - 50㎛로 제조된 β-반수석고를 본 발명에서 사용할 수 있다.Although not particularly limited, the β-hemihydrate gypsum may have an average particle diameter of 10-50 μm and contain 1-6% by weight of crystals. For example, a desulfurized gypsum having an average particle diameter of 30 to 60 탆, a free water content of 10% and a purity of 90% or more was obtained from a thermal power plant, and the desulfurized gypsum was firstly introduced into a case mill at 80 to 90 캜, A β-hemihydrate produced by sintering and pulverizing at 150 to 160 ° C. in an impact mill at an average particle size of 10 to 50 μm can be used in the present invention.
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로 무수석고 1 - 6중량부(예컨대 1 - 3중량부)를 포함한다. 무수석고 사용량이 1중량부 미만이면 응결시간이 단축되어 작업성 확보에 문제가 있으며, 6중량부를 초과하면 응결시간이 지연되며 제조원가가 높아지는 문제가 있다. The mortar composition of the present invention comprises 1 to 6 parts by weight (e.g., 1 to 3 parts by weight) of anhydrous gypsum based on 100 parts by weight of the total composition. If the amount of the anhydrous gypsum used is less than 1 part by weight, the coagulation time is shortened and there is a problem in securing workability. If the amount is more than 6 parts by weight, the coagulation time is delayed and the manufacturing cost is increased.
상기 무수석고로는, 그 비표면적이 예컨대 3,000 내지 6,000㎠/g 정도로 분말화된 것이 바람직하다.The anhydrous gypsum preferably has a specific surface area of about 3,000 to 6,000 cm < 2 > / g.
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로 백시멘트 1 - 6중량부(예컨대 1 - 3중량부)를 포함한다. 백시멘트 사용량이 1중량부 미만이면 모르타르에서 발현되는 압축강도가 낮아 요구하는 강도를 얻을 수 없으며, 6중량부를 초과하면 산업부산물의 활용이 줄어들어 친환경적이 못하다는 문제가 있다. The mortar composition of the present invention comprises 1 to 6 parts by weight (e.g., 1 to 3 parts by weight) of white cement based on 100 parts by weight of the total composition. If the amount of the white cement is less than 1 part by weight, the compressive strength developed in the mortar is low and the required strength can not be obtained. If the amount of the white cement is more than 6 parts by weight, the use of industrial byproducts is reduced.
상기 백시멘트로는 백색 포틀랜드 시멘트가 사용가능하며, 이는 Fe2O3, SO3 및 MgO로부터 선택되는 하나 이상을 포함할 수 있고, 이 경우, 예를 들어 Fe2O3를 0.5중량% 이하로, SO3를 3.5중량% 이하로, MgO를 5.0중량% 이하로 포함할 수 있으나, 이에 한정되지는 않는다. The white cement may be at least one selected from Fe 2 O 3 , SO 3 and MgO. In this case, for example, Fe 2 O 3 may be contained in an amount of not more than 0.5% by weight , SO 3 to 3.5 wt% or less, and MgO to 5.0 wt% or less, but the present invention is not limited thereto.
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로 슬래그미분말 1 - 25중량부(예컨대 10 - 25중량부)를 포함한다. 슬래그미분말 사용량이 1중량부 미만이면 모르타르의 장기 강도가 저하되는 문제가 있으며, 25중량부를 초과하면 모르타르의 초기 강도가 저하되는 문제가 있다. The mortar composition of the present invention comprises 1 to 25 parts by weight (for example, 10 to 25 parts by weight) of a slag fine powder based on 100 parts by weight of the total composition. When the amount of the slag fine powder used is less than 1 part by weight, there is a problem that the long-term strength of the mortar is lowered, and when it exceeds 25 parts by weight, the initial strength of the mortar is lowered.
특별히 한정하지 않으나, 슬래그미분말로는 MgO 4.0 - 8.0중량% 및 SO3 2.0 - 3.0중량%를 포함하고, 밀도 2.80 - 2.95g/㎤, 평균입경 8 - 12㎛, 비표면적 4,000 - 6,000㎠/g인 것을 사용할 수 있다.The slag powder includes 4.0 to 8.0 wt% of MgO and 2.0 to 3.0 wt% of SO 3 , and has a density of 2.80 to 2.95 g / cm 3, an average particle diameter of 8 to 12 탆, and a specific surface area of 4,000 to 6,000 cm 2 / g Can be used.
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로 슬라임 1 - 10중량부(예컨대 3 - 6중량부)를 포함한다. 본 명세서 내의 '슬라임'은 규사 생산 시 부산물로 발생하는 저품위 규사를 의미한다. 슬라임의 사용량이 1 중량부 미만이면 유동성 및 초기강도가 향상되나 모르타르의 장기강도가 저하되는 문제가 있으며, 10중량부를 초과하는 경우 응결시간이 너무 빨라 작업성이 떨어지고, 초기 및 장기강도 모두 저하되는 문제가 있다. 특별히 한정하지 않으나, 슬라임은 SiO2 90%중량, Al2O3 4.0 - 6.0중량부를 포함하고, 밀도가 1.1 - 1.5 g/㎤이고, 입도 0.1mm 90% 이상이며, 수분이 1 - 2 중량%이내일 수 있다.The mortar composition of the present invention comprises 1 to 10 parts by weight (e.g., 3 to 6 parts by weight) of a slime based on 100 parts by weight of the total composition. The term 'slime' in the present specification means a low-grade silica sand produced as a by-product in the production of silica sand. If the amount of the slime is less than 1 part by weight, the flowability and the initial strength are improved but the long-term strength of the mortar is lowered. When the amount of the slime is more than 10 parts by weight, the setting time is too fast, there is a problem. The slurry contains 90% by weight of SiO 2 and 4.0 to 6.0 parts by weight of Al 2 O 3 , and has a density of 1.1 to 1.5 g / cm 3, a particle size of 0.1 mm to 90% and a water content of 1 to 2% by weight, Lt; / RTI >
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로 필러로 사용되는 탄산칼슘 1 - 20중량부(예컨대 10 - 16중량부)를 포함한다. 탄산칼슘 사용량이 1중량부 미만이면 필러로써 요구되는 효과를 얻을 수 없으며, 20중량부를 초과하면 제조 원가가 높아져 경제성이 낮아진다.The mortar composition of the present invention comprises 1 to 20 parts by weight (e.g., 10 to 16 parts by weight) of calcium carbonate used as a filler based on 100 parts by weight of the total composition. If the amount of calcium carbonate used is less than 1 part by weight, the effect required by the filler can not be obtained. If the amount is more than 20 parts by weight, the manufacturing cost is increased and the economical efficiency is lowered.
특별히 한정되지 않으나, 탄산칼슘으로는 밀도가 2.65 - 2.72 g/㎤이고, 평균입경이 9 - 11㎛이며, 잔분45㎛가 0.5 - 2.0%이고, 수분이 0.2 중량% 이하이며, 2㎛이하(%)≥15(즉, 2㎛ 이하의 입자가 15% 이상)인 것을 사용할 수 있다.The calcium carbonate preferably has a density of 2.65 to 2.72 g / cm3, an average particle size of 9 to 11 占 퐉, a remainder of 45 占 퐉 of 0.5 to 2.0%, a water content of not more than 0.2% %) ≫ = 15 (i.e., particles having a particle diameter of 2 mu m or less of 15% or more).
본 발명의 모르타르 조성물은, 조성물 총 100중량부를 기준으로 지연제, 소포제, 증점제, 유동화제, 수지 및 이들의 조합으로부터 선택되는 혼화제 0.01 - 5 중량부(예컨대 0.04 - 1.5중량부)를 포함한다.The mortar composition of the present invention comprises 0.01 to 5 parts by weight (e.g., 0.04 to 1.5 parts by weight) of an admixture selected from retardants, defoamers, thickeners, fluidizers, resins and combinations thereof based on 100 parts by weight of the total composition.
본 발명의 모르타르 조성물은, β-반수석고의 급결성을 지연시켜 작업시간을 확보하기 위하여, 조성물 총 100중량부를 기준으로 지연제 0.01 - 1중량부(보다 바람직하게는 0.1 - 1중량부)를 포함한다. The mortar composition of the present invention preferably contains 0.01 to 1 part by weight (more preferably 0.1 to 1 part by weight) of retarder based on 100 parts by weight of the total composition in order to delay the tidability of the? .
상기 지연제로서 폴리아미드 화합물, 시트르산, 타르타르산 및 이들의 조합으로부터 선택되는 것을 사용할 수 있으며, 상기 폴리아미드 화합물로는 예를 들어 칼슘이 첨가된 폴리아미드 화합물을 사용할 수 있으나, 이에 한정되지는 않는다.As the retarder, a polyamide compound, citric acid, tartaric acid, or a combination thereof may be used. As the polyamide compound, for example, calcium-added polyamide compound may be used, but the present invention is not limited thereto.
본 발명의 모르타르 조성물은, 모르타르의 기포를 제거하여 깨끗한 마감면을 얻고, 강도증진을 확보하기 위해, 조성물 총 100중량부를 기준으로 소포제 0.01 - 1중량부를 포함한다. 상기 소포제로서 에스테르계, 지방산계, 광유계, 알코올계, 아미드계, 실리콘계, 식물성 오일계 및 이들의 조합으로부터 선택되는 것을 사용할 수 있으며, 예를 들어 Ph 7.5이고, 밀도가 0.55 g/㎤인 분말형태의 소포제를 사용할 수 있으나, 이에 한정되지는 않는다..The mortar composition of the present invention contains from 0.01 to 1 part by weight of an antifoaming agent based on 100 parts by weight of the total composition in order to obtain a clean finished surface by removing air bubbles in the mortar and secure the strength enhancement. The antifoaming agent may be selected from ester, fatty acid, mineral oil, alcohol, amide, silicone, vegetable oil, and combinations thereof. For example, Antifoaming agents may be used, but are not limited to these.
본 발명의 모르타르 조성물은, 접착력 및 작업성을 향상시키고, 재료의 분리를 방지하여 시공성을 향상시키시 위해, 조성물 총 100중량부를 기준으로 증점제 0.01 - 1중량부를 포함한다. 상기 증점제로서 메킬셀룰로오스, 히드록시메틸셀룰로오스, 카복시메틸셀룰로오스, 에틸셀루로오스, 하이드록시에틸셀룰로오스 및 이들의 조합으로부터 선택되는 것을 사용 할 수 있으나, 이에 한정되지는 않는다.The mortar composition of the present invention contains 0.01 to 1 part by weight of a thickener based on 100 parts by weight of the total composition in order to improve the adhesive strength and workability and to prevent segregation of materials to improve workability. The thickening agent may be selected from the group consisting of meckel cellulose, hydroxymethylcellulose, carboxymethylcellulose, ethylcellulose, hydroxyethylcellulose, and combinations thereof, but is not limited thereto.
본 발명의 모르타르 조성물은, 단위수량을 감소시켜 워커빌리티 및 강도를 개선하고 유동성 향상, 경화시간 단축, 감수효과 등을 위해, 조성물 총 100중량부를 기준으로 유동화제 0.01 - 1중량부를 포함한다. 상기 유동화제로서 멜라민계, 폴리카본산계, 나프탈렌계, 리그닌계 및 이들의 조합으로부터 선택되는 것을 사용할 수 있으나, 이에 한정되지는 않는다. The mortar composition of the present invention comprises 0.01 to 1 part by weight of a fluidizing agent based on 100 parts by weight of the total composition for improving the workability and strength, improving flowability, shortening of curing time, reducing effect and the like. Examples of the fluidizing agent include, but are not limited to, melamine-based, polycarbonate-based, naphthalene-based, lignin-based, and combinations thereof.
본 발명의 모르타르 조성물은, 부착 및 휨강도를 증진시키고, 내마모성을 증가시키기 위해, 조성물 총 100중량부를 기준으로 수지 0.01 - 1중량부를 포함한다. 상기 수지로서 비닐아세테이트-에틸렌 코폴리머, 아크릴수지, 유리섬유, 실리카계 수지, 초산비닐수지 및 이들의 조합으로부터 선택되는 것을 사용할 수 있으나, 이에 한정되지는 않는다.The mortar composition of the present invention comprises from 0.01 to 1 part by weight of a resin based on 100 parts by weight of the total composition to improve adhesion and flexural strength and increase abrasion resistance. As the resin, a resin selected from a vinyl acetate-ethylene copolymer, an acrylic resin, a glass fiber, a silica-based resin, a vinyl acetate resin, and a combination thereof may be used, but is not limited thereto.
상기의 성분들로 배합된 모르타르 조성물은 약간의 팽창성을 가지고 있으므로 시멘트계 모르타르에 비하여 균열 발생이 적고, 석고 자체가 갖는 평활성을 바탕으로 유동성이 높다는 장점을 갖는다. The mortar composition blended with the above components has an advantage that it has a little swelling property and therefore has less cracking occurrence than cement mortar and has high fluidity based on the smoothness of the gypsum itself.
이러한 본 발명의 모르타르 조성물은, 응결시간으로서 바람직하게는 1시간 이상의 초결 시간(예컨대, 1 - 4시간, 보다 바람직하게는 1 - 3시간) 및 15시간 이내의 종결 시간(예컨대 4 - 15시간, 보다 바람직하게는 4 - 8시간)을 나타낼 수 있다. The mortar composition of the present invention preferably has a setting time (for example, 1 to 4 hours, more preferably 1 to 3 hours) and a termination time (for example, 4 to 15 hours, More preferably 4 to 8 hours).
본 발명의 다른 측면에 따르면, 상기 모르타르 조성물을 이용하여 형성된 모르타르가 제공된다. According to another aspect of the present invention, there is provided a mortar formed using the mortar composition.
본 발명의 모르타르는, 예컨대 상기 모르타르 조성물 100중량부에 대하여 물 35 - 55중량부, 보다 구체적으로는 물 40 - 50중량부를 혼합하여 제조될 수 있으나, 이에 한정되지는 않는다. The mortar of the present invention can be produced, for example, by mixing 35 to 55 parts by weight of water, more specifically, 40 to 50 parts by weight of water, with respect to 100 parts by weight of the mortar composition, but is not limited thereto.
본 발명의 모르타르는 기존의 β-반수석고계 모르타르가 갖는 강도 저하의 문제점을 개선한 것으로서, 200kgf/㎠ 이상(예컨대, 200 - 500kgf/㎠)의 압축강도(재령 7일 기준)를 나타낼 수 있다. 본 발명의 모르타르는 건축재로서 다양한 용도로 사용될 수 있으며, 예를 들어 바닥난방 용도(즉, 난방용 바닥재 용도)로 사용될 수 있다. The mortar of the present invention is an improvement of the problem of the strength deterioration of existing β-semi-rigid high-grade mortar and can exhibit a compressive strength of 200 kgf / cm 2 or more (for example, 200 to 500 kgf / . The mortar of the present invention can be used for various purposes as a building material, and can be used, for example, as a floor heating application (i.e., as a flooring for heating).
이하, 실시예 및 비교예를 통하여 본 발명을 보다 상세하게 설명한다. 그러나, 본 발명의 범위가 이들로 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. However, the scope of the present invention is not limited thereto.
[실시예][Example]
표 1에 나타낸 조성으로 배합된, 슬라임 첨가 모르타르 조성물을 이용하여 모르타르를 제조한 후, 압축강도 및 응결시간을 측정하여 표 1에 나타내었다. The mortar was prepared using the slime-added mortar composition blended with the composition shown in Table 1, and then the compressive strength and the settling time were measured and shown in Table 1.
모르타르의 제조는 KS L 5109 수경성시멘트 페이스트 및 모르타르의 기계적 혼합방법에 따라 실시하였고, KS L 5105 수경성시멘트 모르타르의 압축강도 시험방법에 따라 재령 3일과 7일, 28일에 각각 모르타르의 압축강도를 측정하였다. Mortar was prepared according to the mechanical mixing method of KS L 5109 hydraulic cement paste and mortar, and the compressive strength of mortar was measured at 3, 7, and 28 days of age according to the compressive strength test method of KS L 5105 hydraulic cement mortar Respectively.
[원료 성분][Ingredients of raw materials]
β-반수석고: 평균 입경 25㎛, 결정수 5중량% 함유β-hemihydrate Gypsum: average particle diameter 25 μm, content of crystals 5 wt%
무수석고: 천연무수석고(청해소재), 비표면적 약 4,000㎠/g Anhydrous gypsum: natural anhydrous gypsum (Qinghai), specific surface area of about 4,000㎠ / g
백시멘트: 백색 보통포틀랜드시멘트(유니온)White cement: White ordinary Portland cement (Union)
슬래그미분말: 밀도 2.90 g/㎤, 평균입경 10㎛, 잔분45㎛ 1.0%, 수분 0.2%, 비표면적 5,000㎠/gSlag fine powder: density 2.90 g / cm 3, average particle diameter 10 μm, residual 45 μm 1.0%, water content 0.2%, specific surface area 5,000 cm 2 / g
슬라임: 밀도 1.3 g/㎤, 입도 0.1mm 90% 이상, 수분 1 - 2 중량%이내(KCC 가평공장 생산분)Slime: density 1.3 g / ㎤, particle size 0.1mm 90% or more, water 1-2% (KCC Gapyeong factory production)
탄산칼슘: 밀도 2.68 g/㎤, 평균입경 10㎛, 잔분45㎛ 1.0%, 수분 0.2%, 비표면적 5,000㎠/gCalcium carbonate: density 2.68 g / cm3, average particle diameter 10 占 퐉, residual 45 占 퐉 1.0%, water 0.2%, specific surface area 5,000 cm2 / g
지연제: 칼슘이 첨가된 폴리아미드 화합물[PLAST RETARD PE, (SICIT 2000 S.p.A)]Retardant: calcium-added polyamide compound [PLAST RETARD PE, (SICIT 2000 S.p.A)]
소포제: Agitan P841(식물성 오일계)Antifoaming agent: Agitan P841 (vegetable oil type)
증점제: Bermoco11 M10, M30(에틸셀룰로오스, 저점도 및 고점도 증점제 사용)Thickening agents: Bermoco11 M10, M30 (ethyl cellulose, low viscosity and high viscosity thickener)
유동화제: Conpac 149S(폴리카본산계)Fluidizer: Conpac 149S (polycarbonate-based)
수지: VINNAPAS 5111L(비닐아세테이트-에틸렌 코폴리머)Resin: VINNAPAS 5111L (Vinyl Acetate-Ethylene Copolymer)
실시예 1Example 1
표 1에 나타낸 조성의 성분들을 혼합하여, 슬라임이 3중량부 첨가된 모르타르 조성물을 제조한 뒤, 이 모르타르 조성물 100중량부를 기준으로 물 45중량부를 혼합하여 모르타르를 제조하였다.Components of the composition shown in Table 1 were mixed to prepare a mortar composition containing 3 parts by weight of slime and 45 parts by weight of water based on 100 parts by weight of the mortar composition to prepare a mortar.
실시예 2Example 2
표 1에 나타낸 조성의 성분들을 혼합하여, 슬라임이 6중량부 첨가된 모르타르 조성물을 제조한 뒤, 이 모르타르 조성물 100중량부를 기준으로 물 45중량부를 혼합하여 모르타르를 제조하였다The components of the composition shown in Table 1 were mixed to prepare a mortar composition to which 6 parts by weight of slime was added and then 45 parts by weight of water was mixed with 100 parts by weight of the mortar composition to prepare a mortar
실시예 3Example 3
표 1에 나타낸 조성의 성분들을 혼합하여, 슬라임이 8중량부 첨가된 모르타르 조성물을 제조한 뒤, 이 모르타르 조성물 100중량부를 기준으로 물 45중량부를 혼합하여 모르타르를 제조하였다Components of the composition shown in Table 1 were mixed to prepare a mortar composition to which 8 parts by weight of slime was added and then 45 parts by weight of water was mixed with 100 parts by weight of the mortar composition to prepare a mortar
실시예 4Example 4
표 1에 나타낸 조성의 성분들을 혼합하여, 슬라임이 10중량부 첨가된 모르타르 조성물을 제조한 뒤, 이 모르타르 조성물 100중량부를 기준으로 물 45중량부를 혼합하여 모르타르를 제조하였다The components of the composition shown in Table 1 were mixed to prepare a mortar composition to which 10 parts by weight of slime was added and then 45 parts by weight of water was mixed with 100 parts by weight of the mortar composition to prepare a mortar
비교예 1Comparative Example 1
표 1에 나타낸 조성의 성분들을 혼합하여, 슬라임을 첨가하지 않은 모르타르 조성물을 제조한 뒤, 이 모르타르 조성물 100중량부를 기준으로 물 45중량부를 혼합하여 모르타르를 제조하였다.The components of the composition shown in Table 1 were mixed to prepare a mortar composition to which no slime was added, and 45 parts by weight of water was mixed with 100 parts by weight of the mortar composition to prepare a mortar.
비교예 2Comparative Example 2
표 1에 나타낸 조성의 성분들을 혼합하여, 슬라임이 12중량부 첨가된 모르타르 조성물을 제조한 뒤, 이 모르타르 조성물 100중량부를 기준으로 물 45중량부를 혼합하여 모르타르를 제조하였다.Components of the composition shown in Table 1 were mixed to prepare a mortar composition containing 12 parts by weight of slime and 45 parts by weight of water based on 100 parts by weight of the mortar composition to prepare a mortar.
상기 실시예 1 내지 4에서 얻어진 석고계 모르타르의 응결시간 및 압축강도는 바닥마감용 모르타르의 기준[압축강도: 재령 7일 기준 200㎏f/㎠ 이상, 응결시간: 초결 1시간 이상, 종결 15시간 이내]에 적합한 수치임을 확인 할 수 있었다.The solidification time and the compressive strength of the gypsum mortar obtained in Examples 1 to 4 were determined based on the basis of the mortar for bottom finishing [compression strength: 200 kgf / cm 2 or more at 7 days of age, 1 hour or more of solidification time, Within the above range.
또한 상기 실시예 1 내지 4의 경우, 슬라임이 포함되지 않은 비교예 1 및 슬라임이 과도하게 포함된 비교예 2에 비해 우수한 압축 강도를 나타내면서, 바닥마감용 모르타르 기준에 적합한 응결시간을 나타냄을 확인할 수 있었다. In addition, in Examples 1 to 4, it was confirmed that the composition exhibited excellent compression strength as compared with Comparative Example 1 in which no slime was contained and Comparative Example 2 in which slime was excessively contained, and showed a condensation time suitable for a floor finish mortar standard there was.
상기 비교예 2의 경우 슬라임의 함량이 증가할수록 응결시간은 빠르게 진행되어 적합한 작업시간의 확보가 불가능하였으며, 압축강도 또한 저하되는 것을 확인 할 수 있었다.In the case of Comparative Example 2, as the slime content was increased, the setting time became faster and it was impossible to obtain a suitable working time and the compressive strength was also lowered.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437660A (en) * | 2018-12-29 | 2019-03-08 | 山东宏艺科技股份有限公司 | A kind of Ceramic Balls pulverizing cement auxiliary agent and preparation method thereof |
| CN110256019A (en) * | 2019-07-25 | 2019-09-20 | 重庆秦恒建筑材料有限公司 | A kind of polyphenyl plate bond |
| CN113105151A (en) * | 2021-04-19 | 2021-07-13 | 贵州宇昆湿拌砂浆环保建材有限公司 | Additive for improving performance of phosphogypsum cement-based wet-mixed mortar and preparation method thereof |
| CN114031358A (en) * | 2021-11-19 | 2022-02-11 | 百色市志盛新型材料科技有限公司 | Gypsum-based thermal insulation mortar and preparation method thereof |
-
2016
- 2016-06-24 KR KR1020160079208A patent/KR20180001628A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437660A (en) * | 2018-12-29 | 2019-03-08 | 山东宏艺科技股份有限公司 | A kind of Ceramic Balls pulverizing cement auxiliary agent and preparation method thereof |
| CN109437660B (en) * | 2018-12-29 | 2020-12-15 | 临沂宏艺科技发展有限公司 | Ceramic ball grinding cement additive and preparation method thereof |
| CN110256019A (en) * | 2019-07-25 | 2019-09-20 | 重庆秦恒建筑材料有限公司 | A kind of polyphenyl plate bond |
| CN113105151A (en) * | 2021-04-19 | 2021-07-13 | 贵州宇昆湿拌砂浆环保建材有限公司 | Additive for improving performance of phosphogypsum cement-based wet-mixed mortar and preparation method thereof |
| CN114031358A (en) * | 2021-11-19 | 2022-02-11 | 百色市志盛新型材料科技有限公司 | Gypsum-based thermal insulation mortar and preparation method thereof |
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