WO2016013823A1 - 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물과 그 제조방법 - Google Patents
수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물과 그 제조방법 Download PDFInfo
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- WO2016013823A1 WO2016013823A1 PCT/KR2015/007494 KR2015007494W WO2016013823A1 WO 2016013823 A1 WO2016013823 A1 WO 2016013823A1 KR 2015007494 W KR2015007494 W KR 2015007494W WO 2016013823 A1 WO2016013823 A1 WO 2016013823A1
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- cement
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- hydraulic 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/16—Polyurethanes
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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
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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
- C04B28/02—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
- C04B28/08—Slag cements
- C04B28/082—Steelmaking slags; Converter 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/103—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam the foaming being obtained by the introduction of a gas other than untreated air, e.g. nitrogen
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Definitions
- the present invention relates to a low moisture content plastic composition including a hydraulic cement and a method for manufacturing the same, wherein water is removed from a fluid cement pool prepared by mixing hydraulic cement and water using a foaming force during formation of the foamed polyurethane. It is related with the low water content plastic composition obtained by the process and its manufacturing method.
- Cement based on the Latin word for 'crushed stone', refers to a material that binds a substance together.
- Hydraulic cement refers to a cement that forms a water-resistant product.
- the clinker obtained by mixing limestone and clay in an appropriate mixing ratio and then heating to a temperature between 1,450 ° C. and 1,550 ° C. using a rotary chilon to control the hydraulic curing reaction Portland cement, which is pulverized to a size of 75 ⁇ m or less by using a ball mill with about 5 wt% gypsum (calcium sulphate), is typical.
- Improved portland cement and cold concrete and refractory materials such as colored cement produced by adding pigments such as iron oxide, chromium oxide and cobalt blue to white cement and white cement produced by reducing the iron content of oil well cement and portland cement obtained by pro-crushing Calcium aluminate cements used in the manufacture of
- Hydraulic cement mixes with water to cause chemical reactions to form hydrates, forming a hardened water-resistant hardened product. This process involves (1) a solidification step that loses fluidity from a physical point of view, and (2) solidification of the plastic cement pool. It can be divided into the coagulation step, and (3) the curing step caused.
- hydraulic cement can be mixed with water simply to produce a fluid cement paste.
- Sand is added to mortar, sand and aggregate is added to concrete, fine aggregate is added to grout and spraying shotcrete. After being applied to various products and cured according to the purpose, they are widely used in the form of composite materials, from construction to civil engineering and art production.
- the cement paste cured product contains not only a large amount of (1) pores of various sizes and irregular shapes, but also crystal products produced by hydration of hydraulic cement (2) are also known to be very irregular.
- the cured product manufactured using hydraulic cement has a tensile strength of only 7% to 11% of the compressive strength due to the presence of pores and structural irregularities.
- the expansion and contraction of temperature and humidity caused by climate change causes frequent expansion and contraction due to temperature expansion and contraction.
- the cured product of the cement paste is subjected to tensile force, so it has a fatal disadvantage of easily deteriorating due to cracking.
- the low tensile strength of the hardened cement hardener is a major factor limiting the application range of cement.
- Pore formation of hardened cement products is affected by factors such as air entrainment, curing period and conditions, and size of moldings, but it is known to be most closely related to the amount of water added to the cement paste manufacturing process. It is known that the cement paste cured product prepared by the method has a higher pore content and a lower strength than the cement paste cured product using a small amount of water.
- This research and development is largely (1) the method of adding reinforcing material in the form of fiber, such as asbestos, glass fiber, metal fiber, ceramic fiber, natural fiber, synthetic fiber, and (2) producing cement paste with a small amount of water added , A method of compacting by applying mechanical compression or vibration before hardening, (3) developing and applying admixtures that perform functions such as surface activity and condensation control of cement particles, and (4) liquid or particulate plastics. It can be classified as a method of adding an additive.
- the method of adding liquid or particulate plastic additives to cement paste not only reduces the use of mixed water by improving the fluidity of hydraulic cement, but also after the curing, the plastic additives are uniformly present in the cement cured product. Since it improves the adhesion between the cured cement / cement hardened or aggregate / cement cured, it is attracting attention as a method that can fundamentally compensate for the disadvantages of the hydraulic cement cured product.
- U.S. Patent No. 3,951,674 points out that excess water is required for cement to improve workability, which leads to a decrease in strength of the hardened cement product.
- water-soluble cellulose acetate sulfate can be replaced with portland cement weight.
- U.S. Patent No. 4,880,467 claims that the cured cement should have a flexural strength of at least 15 MPa or more, preferably 40 MPa or more, in order to have sufficient durability to withstand changes in the external environment.
- Uncured cementitious granular dough with added particles wherein the styrene-butadiene copolymer, acrylester polymer, vinyl acetate polymer, vinylidene chloride polymer, between 1 and 20 parts by weight relative to 100 parts by weight of one or more hydraulic cements
- Synthetic resin selected from epoxy resin, phenol resin, urethane resin and acrylic resin is added, and this can be achieved by cementitious dough in which water is mixed between 8 and 20 parts by weight with respect to 100 parts by weight of hydraulic cement.
- Plastics that can be applied to the method of adding liquid or particulate plastic additives to the cement paste are various, and until recently, techniques for applying numerous kinds of plastic materials to cement have been introduced.
- the affinity between the plastic additives and the cement hardened materials should be considered first. .
- Polyurethane is a plastic with a urethane bond in its molecule. It is a material produced by the reaction of an isocyanate compound with a polyol, and is abrasion resistance, oil resistance and rubber elasticity. Research is being extensively applied to cargo.
- Korean Patent No. 0892247 discloses a coating film waterproofing material and a coating material by being coated on a substrate such as asphalt / concrete prepared by mixing 50 to 1,000 parts by weight of dry mortar to 100 parts by weight of a resin mixture containing a main agent and a curing agent 1: 1. , Polyurethane-cement compositions that can be applied to the use of the base adjustment material.
- Korean Patent No. 1135593 discloses a cement mixture powder is prepared by mixing 50 to 70 parts by weight of cement powder and 10 to 30 parts by weight of powder additive, and then isocyanate, polyol, and foaming agent are mixed and mixed with the previously prepared mixed powder. It introduces composites with excellent sound insulation and heat insulation produced through the pressure foaming process.
- Korean Patent No. 1075260 discloses 150 to 200 parts by weight of cement, 25 to 75 parts by weight of inorganic pigment, 25 to 75 parts by weight of anti-settling agent, and 25 to 75 weight of self-leveling agent based on 100 parts by weight of liquid acrylic urethane resin.
- the urethane resin mortar composition for floor packaging manufactured by mixing with a negative composition ratio is introduced.
- the present invention has been made to solve the problems of the above-mentioned conventional hydraulic cement and techniques for improving the same, by separating the water blended into the hydraulic cement, the hydraulic caused by the water added to obtain the hydration cured product of the hydraulic cement It is an object of the present invention to provide a low water content plastic composition containing a hydraulic cement which can effectively solve the problem of deterioration of physical properties of a cement cured product and obtain a cured product having excellent durability, and a method of manufacturing the same.
- composition of the low water content plastic composition prepared using the hydraulic cement according to the present invention for achieving the above object
- foaming during the formation of the foamed polyurethane removes part of the water used in the mixture, resulting in loss of fluidity and plasticity. Characterized in having a.
- the homogeneous mixture is characterized in that 2.5 parts by weight to 150 parts by weight of water and 10 parts by weight to 100 parts by weight of the foamable polyurethane forming material are mixed with respect to 100 parts by weight of the hydraulic cement.
- Polyurethane is polymerized and foamed in a fluid, homogeneous mixture obtained by mixing hydraulic cement, water, and a polyol and an isocyanate compound, which are raw materials for forming a foamable polyurethane, thereby discharging free water existing between cement particles by using a foaming force.
- the present invention is characterized by removing the phase separated water by phase separation into a liquid composition and a plastic composition comprising a foamed polyurethane and a hydraulic cement that lost fluidity.
- plastic composition composed of cement particles and polyurethane, which contain a very small amount of water and are uniformly wet.
- cement blending water which lowers the adhesive strength of polyurethane, is effectively removed in the manufacturing process of the mixed composition and thus exhibits excellent overall adhesion. Therefore, it is easy to apply reinforcing materials such as metal mesh, glass surface, glass cotton mesh, synthetic fiber, synthetic fiber cloth, pulp, It can be mixed with particles such as wood powder, dry sand, etc. to form a rigid composite, and can be widely used as a coating with various materials requiring high adhesion, as an adhesive for laminating, and as a core material.
- compositions containing a relatively small amount of urethane and exhibiting the surface characteristics of the urethane as a whole can be provided, which is more economical than general petrochemical adhesives, and can reduce the use of chemicals having a lot of controversy.
- a cured product which exhibits high abrasion resistance and excellent rigidity due to the uniform hydration formation of the hydraulic cement uniformly added with moisture and the dense structural features between the polyurethane and the cement hardener.
- the polyurethane stably traps the hydraulic cement particles, so that the cured product having excellent wear resistance and rigidity can be formed in the water or in the oil without loss of the hydraulic cement.
- the low moisture content plastic composition including the hydraulic cement according to the present invention having such an effect can be used as a durable structural material and a structural material for a composite material, a surface material and a core material for laminating, a coating agent and an adhesive.
- Example 1 is a photograph sequentially showing the state after adding and stirring the polymeric MDI in Example 1 of the present invention
- Figure 2 is a photograph showing a state observed from the top of the beaker after the slow stirring for 60 seconds in Example 1 of the present invention
- Figure 3 is a photograph showing the dense surface appearance of the cured product cured after molding the composition obtained in Example 1 of the present invention in the form of a film using a roller;
- Figure 4 is a photograph showing the surface appearance of the cured product cured after molding the composition obtained in Example 2 of the present invention in the form of a film using a roller;
- Example 5 is a photograph showing the surface of the cured product obtained by curing the composition obtained in Example 3 of the present invention in the form of a film using a roller;
- Figure 6 is a photograph showing the surface appearance of the composite molding using the wood powder obtained in Example 40 of the present invention.
- the low water content plastic composition prepared by using the polyurethane and cement according to the present invention is a fluid obtained by mixing together a hydraulic cement mainly composed of Portland cement with water and a liquid polyol and an isocyanate compound forming an expandable polyurethane. It is obtained through agitation for a certain time in a uniform mixture and separation of the discharged free water.
- a fluidized cement paste is prepared by uniformly mixing four materials, that is, a liquid isocyanate compound forming water-based cement, water, and foamed urethane, and a polyol.
- the excellent adhesion of the polyurethane present in the mixture is uniformly mixed with the cement paste, and the mixed cement paste is exhibited as a whole. It provides plasticity that can be deformed and has high hardness due to cement hardened material with ideal uniformity when mixed cement completes hydration reaction and high wear resistance due to dense structural characteristics between hydrated cement and urethane And a cured product exhibiting excellent rigidity.
- a liquid polyester, polyether, and perm oil, in which two or more hydroxyl groups (-OH) are present in the molecular structure is useful, and when it is required to enhance flame retardancy, A halogenated polyol may be used, and an amine catalyst may be mixed in an amount of 0.5 wt% to 5 wt% based on the weight of the polyol in order to increase the reaction rate with the isocyanate compound.
- the hydraulic cement used in the present invention is Portland cement and blast furnace slag cement, pozzolanic cement, expansion cement, portland cement and calcium aluminate cement mixed with the fastening / sharp cement, oil well cement, white cement and pigment added Any of cement, cement and calcium aluminate cement can be used.
- the amount of water added relative to 100 parts by weight of hydraulic cement may be added between 2.5 parts by weight and 150 parts by weight. If the amount of water is too small, workability such as stirring and conveying becomes worse due to the high viscosity of the mixture. In too many cases, the loss of cement particles may occur during the agglomeration of the mixture, and the agglomeration of the polyurethane is weakened. Therefore, water may be added between 5 parts by weight and 65 parts by weight with respect to 100 parts by weight of hydraulic cement. Can be.
- the isocyanate compound is added while the hydraulic cement, water, and polyol are uniformly mixed.
- the polyol mixed with the isocyanate compound is a raw material for forming the expandable urethane, and forms a urethane bond in the mixture, grows into macromolecules, collects hydraulic cement particles, and expresses adhesion.
- the amount of the polyol and the isocyanate compound may be added between 10 parts by weight and 100 parts by weight with respect to 100 parts by weight of the hardened cement to improve wear resistance and rigidity of the cement cured product.
- the polyol and isocyanate are respectively controlled in a weight ratio of 2: 7 to 7: 5 by weight ratio. It is important.
- the speed of the stirring impeller is reduced so that the resultant urethane aggregates into one mass inside the stirring vessel, and the mixture is stirred until the appropriate amount of water is separated from the mixture. Removal of water results in a low water content plastic composition prepared using the expandable polyurethane and cement of the present invention.
- the amount of water separated and removed from the mixture may vary depending on the amount of water added or the mixing ratio of the other components, approximately 5 to 85% of the initial added water.
- the obtained plastic composition is in a state of high adhesiveness and flexibility, but after the passage of time between 30 minutes and 60 minutes at room temperature, it loses the adhesiveness by the curing of the primary urethane and can be handled in durability, bending and cutting. This shows the degree of hardness, and after 4 hours or more, a hardened product having high hardness and strength is obtained due to the hydration process of the hydraulic cement particles.
- Example 1 immediately after the injection of the polymeric MDI, the state after the high-speed stirring for 10 seconds, the state after the 30-second low-speed stirring and the state after the 60-second low-speed stirring, respectively, and photographed (a) of FIG. , (B), (c) and (d) are shown. It can be confirmed that water is rapidly separated from the plastic composition by stirring.
- FIG. 2 is a photograph showing the appearance observed in the top of the beaker after the low speed stirring for 60 seconds in Example 1 of the present invention, the liquid mixture separated and discharged from the mixed composition of the polyurethane and cement paste and the mixed composition phase separated The free water is shown well
- FIG. 3 is a photograph of a cured product obtained by molding the composition obtained in Example 1 of the present invention in the form of a film by using a roller, and shows a fine surface appearance.
- Figure 4 is a photograph showing the surface appearance of the cured product obtained by curing the composition obtained in Example 2 of the present invention in the form of a film using a roller, the affinity with urethane in the case of gypsum rather than hydraulic cement Insufficient polyurethane is shown on the surface of the cured product.
- FIG. 5 is a photograph showing the surface of a cured product obtained by molding the composition obtained in Example 3 in the form of a film using a roller, and has excellent affinity with urethane even in the case of a relatively large white cement. This demonstrates that polyurethane does not elute.
- the portland cement was found to exhibit excellent properties in both the properties of the plastic composition and the cured product.
- the blending ratio of the foamable polyurethane forming material showing the best result was found to be 20 to 35 parts by weight based on 100 parts by weight of hydraulic cement.
- Figure 6 is a photograph showing the surface appearance of the composite molding using the wood powder obtained in Example 40 of the present invention.
Abstract
Description
Claims (5)
- 수경성 시멘트와 물 및 발포성 폴리우레탄 형성 원료인 폴리올과 이소시아네이트 화합물의 유동성인 균일 혼합물 상태에서, 발포성 폴리우레탄의 형성과정에서의 발포에 의해 혼합물 중에 사용된 물의 일부가 분리 제거되어, 유동성을 상실하고 가소성을 갖는 것을 특징으로 하는 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물.
- 제 1항에 있어서, 상기 수경성 시멘트가 포틀랜드 시멘트, 고로슬래그 시멘트, 포졸란 시멘트, 팽창시멘트, 급결/급경 시멘트, 유정시멘트, 백색시멘트, 착색시멘트, 칼슘알루미네이트 시멘트 단독 또는 둘 이상 임의 선택되어진 것의 혼합물, 또는 이들 중 어느 하나와 석고와의 혼합물인 것을 특징으로 하는 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물.
- 제 1항에 있어서, 상기 균일 혼합물은 상기 수경성 시멘트 100중량부에 대해서, 물 2.5중량부 내지 150중량부 및 발포성 폴리우레탄 형성원료 10중량부 내지 100중량부가 혼합된 것을 특징으로 하는 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물.
- 수경성 시멘트와 물 및 발포성 폴리우레탄 형성 원료인 폴리올과 이소시아네이트 화합물을 혼합하여 얻어지는 유동성인 균일한 혼합물 상태에서 폴리우레탄을 중합, 발포시킴으로써, 시멘트 입자 사이에 존재하는 자유수를 발포력을 이용하여 배출시켜, 유동성을 상실한 발포성 폴리우레탄과 수경성 시멘트를 포함하는 가소성 조성물과 액상의 물로 상분리하고, 상분리된 물을 제거하는 것을 특징으로 하는 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물 제조방법.
- 제 4항에 있어서, 상기 수경성 시멘트에 물과 폴리올을 이소시아네이트 화합물보다 먼저 먼저 혼합하여 주는 것을 특징으로 하는 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물의 제조방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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EP15824493.9A EP3173391B1 (en) | 2014-07-25 | 2015-07-20 | Method for making a low water content plastic composition comprising hydraulic cement |
JP2017523754A JP6404471B2 (ja) | 2014-07-25 | 2015-07-20 | 水硬性セメントを含む低い含水量の可塑性組成物及びその製造方法 |
AU2015292997A AU2015292997B2 (en) | 2014-07-25 | 2015-07-20 | Low water content plastic composition comprising hydraulic cement and method for manufacturing same |
CN201580040493.4A CN106536446B (zh) | 2014-07-25 | 2015-07-20 | 含有水凝水泥的具有低水含量的塑料组合物及其制备方法 |
CA2956134A CA2956134C (en) | 2014-07-25 | 2015-07-20 | Low water content plastic composition comprising hydraulic cement and method for manufacturing same |
US15/326,209 US10118859B2 (en) | 2014-07-25 | 2015-07-20 | Low water content plastic composition comprising hydraulic cement and method for manufacturing same |
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KR10-2014-0094774 | 2014-07-25 | ||
KR20140094774A KR101498986B1 (ko) | 2014-07-25 | 2014-07-25 | 수경성 시멘트를 포함한 낮은 함수량의 가소성 조성물과 그 제조방법 |
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WO2016013823A1 true WO2016013823A1 (ko) | 2016-01-28 |
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US (1) | US10118859B2 (ko) |
EP (1) | EP3173391B1 (ko) |
JP (1) | JP6404471B2 (ko) |
KR (1) | KR101498986B1 (ko) |
CN (1) | CN106536446B (ko) |
AU (1) | AU2015292997B2 (ko) |
CA (1) | CA2956134C (ko) |
WO (1) | WO2016013823A1 (ko) |
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KR101594745B1 (ko) * | 2015-11-25 | 2016-02-16 | 주정미 | 불연성 폴리우레탄 발포체 및 그 제조방법 |
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CA2956134A1 (en) | 2016-01-28 |
AU2015292997B2 (en) | 2019-01-31 |
JP6404471B2 (ja) | 2018-10-10 |
CA2956134C (en) | 2020-06-23 |
US10118859B2 (en) | 2018-11-06 |
CN106536446B (zh) | 2020-02-07 |
EP3173391A4 (en) | 2018-03-07 |
EP3173391A1 (en) | 2017-05-31 |
CN106536446A (zh) | 2017-03-22 |
EP3173391B1 (en) | 2020-08-26 |
AU2015292997A1 (en) | 2017-02-16 |
KR101498986B1 (ko) | 2015-03-05 |
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