WO2019021740A1 - セメント組成物、それを使用する施工方法、及びその製造方法 - Google Patents
セメント組成物、それを使用する施工方法、及びその製造方法 Download PDFInfo
- Publication number
- WO2019021740A1 WO2019021740A1 PCT/JP2018/024680 JP2018024680W WO2019021740A1 WO 2019021740 A1 WO2019021740 A1 WO 2019021740A1 JP 2018024680 W JP2018024680 W JP 2018024680W WO 2019021740 A1 WO2019021740 A1 WO 2019021740A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cement composition
- cement
- mixing
- aggregate
- calcium aluminate
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
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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
- 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
- C04B22/08—Acids or salts thereof
-
- 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
- C04B22/10—Acids or salts thereof containing carbon in the anion
-
- 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
-
- 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
-
- 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
- C04B24/06—Carboxylic acids; Salts, anhydrides or esters thereof containing hydroxy groups
-
- 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
- C04B24/38—Polysaccharides or derivatives thereof
-
- 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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
Definitions
- the present invention relates mainly to cement compositions used in the civil engineering and construction industry.
- Patent Document 1 In the repair method of Patent Document 1, the operation can be simplified and reduced by the automated concrete mixing device, but there is a possibility that the cost of concrete may increase because a special mixing device is required. Moreover, patent document 2 can be open
- a pothole means the hole formed in the pavement surface of a road resulting from the cyclic load by the vehicle which passes a road, the shape of a road, the stagnant water of a pavement, etc.
- Patent document 3 knead mixes the mortar material which consists of a cement, a cement rapid-hardening material, and a fine aggregate with a maximum particle diameter of 2.5 mm and a particle diameter of 0.5 mm 50 to 80% in water, and is hardened in water
- Unnecessary construction method is disclosed.
- the permeability to water can not be obtained sufficiently, and the problem that the compressive strength of the obtained cured product is lowered can not be solved.
- the inventors of the present invention conducted intensive studies to solve the above-mentioned problems, and found that using a specific aggregate and calcium aluminate in combination enables curing without the need for mixing.
- the present invention has been achieved.
- embodiments of the present invention can provide the following.
- the CaO / Al 2 O 3 molar ratio of the calcium aluminate is 1.0 or more and 3.0 or less
- the mixing-unnecessary cement composition characterized in that a proportion of a particle diameter of 2.5 mm or more in the aggregate is 30% or more.
- the cement composition according to the embodiment of the present invention is filled in a target location, and watering is performed if necessary, work of mixing cement material and water, compression work after construction, special treatments such as heating and moisture retention It is possible to cure in a short time of 10 minutes or less, without requiring curing at all.
- cement composition referred to in the present specification is defined as containing cement, calcium aluminate, aggregate, and may further contain a setting regulator and polysaccharide gum.
- the cement that can be contained in the cement composition includes various Portland cements such as normal strength, super high strength, low heat, moderate heat, and various mixtures of blast furnace slag, fly ash, silica, etc. mixed with these portland cements. Filler cement etc. which mixed cement, limestone powder, blast furnace slowly cooled slag fine powder, etc. are mentioned. Furthermore, environment-friendly cements produced by using municipal waste incineration ash and sewage sludge incineration ash as raw materials, so-called eco-cement can be mentioned. In the embodiment of the present invention, one or more of the above can be used in combination.
- the calcium aluminate which can be contained in the present cement composition, is obtained by mixing a calcia raw material and an alumina raw material and calcining with a kiln, or crystalline and amorphous obtained by melting and cooling with an electric furnace.
- the CaO and Al 2 O 3 is a compound mainly.
- Alumina cement is a typical calcium aluminate of the present invention, and commercially available alumina cement No. 1 and alumina cement No. 2 can be used.
- amorphous calcium aluminate which is melted in an electric furnace and then quenched is preferable.
- the molar ratio of CaO to Al 2 O 3 (hereinafter referred to as C / A molar ratio) of calcium aluminate is 1.0 or more and 3.0 or less, preferably 1.7 or more and 2.5 or less. Even in the case of 1.0 to 1.7 where the C / A molar ratio is small, it is possible to shorten the setting time and enhance the initial strength development by blending cement, slaked lime, quick lime and the like. In producing the cement composition according to the present invention, it is preferable to carry out without additionally adding gypsum in order to increase the strength of the cured product.
- the strength can be enhanced because the combined system of calcium aluminate and gypsum, which is known as a conventional quick-hardening material, produces ettringite as a hydrate when it is added to water, while the calcium aluminide scale alone is rapidly hardened.
- C2AH8 2CaO ⁇ Al 2 O 3 ⁇ 8H 2 O
- C3AH6 3CaO ⁇ Al 2 O 3 ⁇ 6H 2 O
- the content of components other than CaO and Al 2 O 3 contained in calcium aluminate is preferably 15% or less from the viewpoint of initial strength development, and more preferably 10% or less. If it exceeds 15%, curing takes time, and it may not be solidified in a low temperature environment.
- Silicon dioxide is a typical example of components other than CaO and Al 2 O 3 , and, for example, alkali metal oxides, alkaline earth metal oxides, titanium oxides, iron oxides, alkali metal halides, alkali earth halides, etc.
- the metal halides include metal halides, alkali metal sulfates, and alkaline earth metal sulfates, and are not particularly limited.
- the particle size of the calcium aluminate, in terms of initial strength development, in the Blaine specific surface area value is preferably not less than 3000cm 2 / g, 4000cm 2 / g or more is more preferable.
- the brane specific surface area value is less than 3000 cm 2 / g, the initial strength development may decrease.
- the amount of calcium aluminate used is preferably 1 to 20 parts per 100 parts of cement, and more preferably 2 to 10 parts. If the amount of calcium aluminate used exceeds 20 parts, the time to cure may be too short to inhibit the penetration of water into the inside of the solidified body, and if it is less than 1 part, it may be uniformly mixed in cement It is difficult and it is not preferable because curing may be poor.
- the aggregate that can be contained in the cement composition includes commonly used river sand, sea sand, crushed sand, silica sand, lightweight aggregate and the like, and one or more of them may be used by mixing It is possible and preferred to use these dried products when used as a premix product.
- the ratio of the particle diameter of 2.5 mm or more of the aggregate is 30% or more, and preferably 40% or more and less than 90%. If the ratio of the particle diameter of 2.5 mm or more of the aggregate is less than 30%, there is a problem that the penetration of water into the material is inhibited.
- the amount of aggregate used is preferably 100 parts or more and 500 parts or less based on 100 parts of the total amount of cement and calcium aluminate. If it is less than 100 parts, the penetration of water into the material may be inhibited, and if it exceeds 500 parts, insufficient strength may occur or the workability may be impaired.
- the setting modifier having a carboxylic acid structure is preferably one having a structure in which a part of the hydrocarbon (C m H n ) structure is substituted by a carboxylic acid or a carboxylic acid salt, and the total molecular weight is 1000 or less.
- citric acid, tartaric acid, succinic acid, lactic acid, gluconic acid and the like can be mentioned.
- an alkali salt of carboxylic acid sodium salt, potassium salt, calcium salt etc. are mentioned.
- tartaric acid and citric acid are preferable in terms of strength development.
- the usage-amount of the setting regulator which has the carboxylic acid structure which this cement composition can contain, 0.05 parts or more and 2 parts or less are preferable with respect to a total amount of 100 parts of cement and calcium aluminate. If the amount is less than 0.05 part, the penetration of water into the material may be inhibited, and if it exceeds 2 parts, insufficient strength may occur or the workability may be impaired.
- the setting modifiers which are alkali metal inorganic salts include inorganic salts whose cations are lithium, sodium and potassium and whose anions are hydroxide, chloride, bromide, carbonic acid, nitric acid, nitric acid, nitrous acid, sulfuric acid and acetic acid It corresponds and these 1 type, or 2 or more types can be used.
- lithium carbonate, sodium carbonate, potassium carbonate, lithium chloride, sodium chloride, potassium chloride, lithium nitrate, sodium nitrate and potassium nitrate are preferable from the viewpoint of strength development.
- the use amount of the setting regulator which is the above-mentioned alkali metal inorganic salt, is not particularly limited, but preferably 0.05 parts or more and 1 part or less with respect to 100 parts of the total amount of cement and calcium aluminate, 0.1 parts or more and 0.5 parts or less are more preferable. If the amount of the cement additive used is less than 0.05 parts or more than 1 part, the effects of the present invention may not be sufficiently obtained.
- polysaccharide gums examples include dutan gum, welan gum, rhamsan gum, gellan gum, xanthan gum, alginic acid gum, carrageenan gum and locust bean gum, and the like, with preference given to dutan gum and welan gum.
- the amount of polysaccharide gum that can be contained in the present cement composition is preferably 0.1 parts or more and 2 parts or less with respect to 100 parts of the total amount of cement and calcium aluminate. If it is less than 0.1 part, mixing failure may occur, and if it exceeds 2 parts, workability may deteriorate.
- cement composition in addition to cement, calcium aluminate, aggregate and a modifier, an expanding agent, a water reducing agent, an AE water reducing agent, a high performance water reducing agent, a high performance AE water reducing agent, an extinction Foaming agents, thickeners, rust inhibitors, antifreeze agents, shrinkage reducing agents, clay minerals such as bentonite, anion exchangers such as hydrotalcite, slags such as ground granulated blast furnace slag and ground granulated slowly cooled slag, etc.
- One or more of the group consisting of admixtures such as fine limestone powder can be used in combination as long as the object of the present invention is not substantially impaired.
- the cement composition according to the embodiment of the present invention may be mixed partially or entirely in advance.
- a mixing device for pre-mixing an existing mixing device can be used, and for example, a tilt cylinder mixer, an omni mixer, a Henschel mixer, a V-type mixer, a professional shear mixer, a Nauta mixer, etc. can be used.
- the mixing-unnecessary cement composition As a method of using the mixing-unnecessary cement composition according to the embodiment of the present invention, it is possible to fill the target location and spray water as needed. Specifically showing the method of use, put 70 parts or less of water per 100 parts of the total amount of cement and calcium aluminate in the cement composition of the present invention in a construction target site such as a road surface or a slope Fill the cement composition in the target area, and spray 5 parts or more and 50 parts or less of water per 100 parts of the total amount of cement and calcium aluminate as needed. Although it is not necessary to supply water to the cement composition of the present invention from both the upper and lower surfaces, it is desirable to supply water from both sides for the purpose of suppressing scattering of materials and generation of dust.
- Example 1 10 parts of calcium aluminate and 400 parts by mass of aggregate were mixed with 100 parts of ordinary portland cement with a Nauta mixer to prepare a cement composition without adding gypsum.
- 100 ml of water was placed, and 1000 g of a cement composition was placed thereon to quickly flatten the surface, and 50 ml of water was sprinkled and cured. After 3 minutes from the watering, it was demolded, and the compressive strength and the permeation rate of water were immediately measured.
- Compressive strength The upper and lower surfaces of the cured product after removal of the mold were smoothed, and a compression test was performed according to JIS A 1108: 2006.
- Cement Normal Portland cement, Blaine specific surface area 3210 cm 2 / g, manufactured by Denka.
- Calcium aluminate Prepared by using limestone and bauxite as raw materials in the range of 1.0 to 3.0 in C / A molar ratio, heat treated, melted and quenched in an electric furnace for 1 hour, and vitrified ( Vitrification rates are all 95%). Then, it grind
- Aggregate River sand from Himekawa, Niigata Prefecture, with a specific gravity of 2.64, adjusted in particle size and dried. Deutun gum: Sanki Co., Ltd.
- Coagulation modifier 1 L-tartaric acid: made by Kanto Chemical Co., Ltd. Citric acid: made by Kanto Chemical Co., Ltd. Lithium carbonate: made by Kanto Chemical Co., Ltd. Sodium chloride: made by Kanto Chemical Co., Ltd. Potassium nitrate: made by Kanto Chemical Co., Ltd. Potassium sulfate: made by Kanto Chemical Co., Ltd. polysaccharide gum Welan gum: made by San-Ei Gen F.F. Made in Japan
- Example 3 The experimental No. 1 experiment No. 1 was changed except that the amount of calcium aluminate used was changed and a setting modifier was added. No. 1-2 and Experimental example 2 No. 1 The same test as in 2-1 was performed. The results are shown in Table 3.
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
Description
前記カルシウムアルミネートのCaO/Al2O3モル比が、1.0以上3.0以下であり、
前記骨材のうち2.5mm以上の粒径が占める割合が30%以上である
ことを特徴とする、練混ぜ不要のセメント組成物。
充填した前記セメント組成物に対して散水するステップと
を含むことを特徴とする施工方法。
ガラス化率χ(%)=100×(1-S/S0)
普通ポルトランドセメント100部に対して、カルシウムアルミネート10部、骨材400質量部をナウタミキサで混合し、石膏を追加することなくセメント組成物を調製した。
直径10cm、高さ50cmの円筒容器に、水100mlを入れ、その上からセメント組成物1000gを入れて、素早く表面を平らにし、水50mlをじょうろで散水し硬化させた。散水から3分経過したのちに、脱型し、直ちに圧縮強度と水の浸透割合を測定した。
圧縮強度:脱型後の硬化体の上下面を平滑にし、JIS A 1108:2006に準じて、圧縮試験を行った。
水の浸透割合:硬化体上下の中心部を通るように半分に切断し、水の浸透割合を下記式から算出した。
水の浸透割合(%)=((硬化体の直径―水の非浸透部の直径)/(硬化体の直径))×100=((10―水の非浸透部の直径)/10)×100
セメント:普通ポルトランドセメント、ブレーン比表面積3210cm2/g、デンカ社製。
カルシウムアルミネート:C/Aモル比で1.0~3.0の範囲になるように石灰石とボーキサイトを原料にして調整し、電気炉で1700℃1時間熱処理溶融後急冷し、ガラス化した(ガラス化率は全て95%)。その後、粉砕し、ブレーン比表面積値3000、4000、5000cm2/gに調整した。
骨材:新潟県姫川産の川砂、比重2.64を、粒度調整し、乾燥したもの。
デュータンガム:三晶株式会社製
凝結調整剤及び多糖類ガムを使用し、凝結調整剤及び多糖類ガムの使用量を表2に示すように変化したこと以外は実験例1の実験No.1-2と同様の試験を行った。結果を表2に示す。
凝結調整剤1
L-酒石酸:関東化学株式会社製
クエン酸:関東化学株式会社製
凝結調整剤2
炭酸リチウム:関東化学株式会社製
塩化ナトリウム:関東化学株式会社製
硝酸カリウム:関東化学株式会社製
硫酸カリウム:関東化学株式会社製
多糖類ガム
ウェランガム:三栄源エフ・エフ・アイ株式会社製
デュータンガム:三晶株式会社製
カルシウムアルミネートの使用量を変え、凝結調整剤を添加したこと以外は、実験例1実験のNo.1-2および実験例2のNo.2-1と同様の試験を行った。結果を表3に示す。
Claims (6)
- セメント、カルシウムアルミネート、及び骨材を含有し、
前記カルシウムアルミネートのCaO/Al2O3モル比が、1.0以上3.0以下であり、
前記骨材のうち2.5mm以上の粒径が占める割合が30%以上である
ことを特徴とする、練混ぜ不要のセメント組成物。 - 更に、カルボン酸構造を持つ凝結調整剤を含有することを特徴とする、請求項1に記載の練混ぜ不要のセメント組成物。
- 更に、アルカリ金属無機塩である凝結調整剤を含有することを特徴とする、請求項1または2に記載の練混ぜ不要のセメント組成物。
- 更に、多糖類ガムを含有することを特徴とする、請求項1~3のいずれか一項に記載の練混ぜ不要のセメント組成物。
- 請求項1~4のいずれか一項に記載の練混ぜ不要のセメント組成物を、対象箇所に充填するステップと、
充填した前記セメント組成物に対して散水するステップと
を含むことを特徴とする施工方法。 - セメントと、CaO/Al2O3モル比が1.0以上3.0以下であるカルシウムアルミネートと、2.5mm以上の粒径が占める割合が30%以上である骨材とを、石膏を追加することなく混合することを特徴とする、練混ぜ不要のセメント組成物の製造方法。
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AU2018307119A AU2018307119B2 (en) | 2017-07-26 | 2018-06-28 | Cement composition, construction method using same, and method for producing same |
MYPI2019006721A MY197203A (en) | 2017-07-26 | 2018-06-28 | Cement composition, construction method using same, and method for producing same |
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JP2017144655A JP2020158311A (ja) | 2017-07-26 | 2017-07-26 | 練混ぜ不要のセメント系組成物及びその使用方法 |
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Cited By (2)
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CN113149707A (zh) * | 2021-04-24 | 2021-07-23 | 上海练定新材料科技有限公司 | 一种抗压泡沫混凝土及其制备方法 |
WO2021201051A1 (ja) * | 2020-03-30 | 2021-10-07 | ニチレキ株式会社 | 路盤層の構築方法とそれに用いる混合物 |
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JP4417571B2 (ja) * | 2001-01-29 | 2010-02-17 | ケルネオ | 吹付けモルタル乾式工法で使用するアルミン酸カルシウムドライモルタル |
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2017
- 2017-07-26 JP JP2017144655A patent/JP2020158311A/ja active Pending
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2018
- 2018-06-28 WO PCT/JP2018/024680 patent/WO2019021740A1/ja active Application Filing
- 2018-06-28 MY MYPI2019006721A patent/MY197203A/en unknown
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Patent Citations (3)
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JPH04132644A (ja) * | 1990-09-26 | 1992-05-06 | Denki Kagaku Kogyo Kk | モルタル材料及びそれを用いた混練り不要工法 |
JPH11130562A (ja) * | 1997-10-31 | 1999-05-18 | Sumitomo Forestry Co Ltd | コンクリート亀裂部の補修方法および補修用セメント |
JP2005314140A (ja) * | 2004-04-27 | 2005-11-10 | Taiheiyo Material Kk | 流体状硬化材 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021201051A1 (ja) * | 2020-03-30 | 2021-10-07 | ニチレキ株式会社 | 路盤層の構築方法とそれに用いる混合物 |
JPWO2021201051A1 (ja) * | 2020-03-30 | 2021-10-07 | ||
JP7382492B2 (ja) | 2020-03-30 | 2023-11-16 | ニチレキ株式会社 | 路盤層の構築方法とそれに用いる混合物 |
CN113149707A (zh) * | 2021-04-24 | 2021-07-23 | 上海练定新材料科技有限公司 | 一种抗压泡沫混凝土及其制备方法 |
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AU2018307119A1 (en) | 2019-12-05 |
JP2020158311A (ja) | 2020-10-01 |
MY197203A (en) | 2023-05-31 |
AU2018307119B2 (en) | 2023-07-27 |
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