WO2023188655A1 - Améliorateur de résistance pour composition hydraulique, adjuvant pour composition hydraulique, composition hydraulique et produit durci à base de composition hydraulique - Google Patents

Améliorateur de résistance pour composition hydraulique, adjuvant pour composition hydraulique, composition hydraulique et produit durci à base de composition hydraulique Download PDF

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Publication number
WO2023188655A1
WO2023188655A1 PCT/JP2022/048316 JP2022048316W WO2023188655A1 WO 2023188655 A1 WO2023188655 A1 WO 2023188655A1 JP 2022048316 W JP2022048316 W JP 2022048316W WO 2023188655 A1 WO2023188655 A1 WO 2023188655A1
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Prior art keywords
component
hydraulic composition
hydraulic
strength
strength enhancer
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Application number
PCT/JP2022/048316
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English (en)
Japanese (ja)
Inventor
善將 田中
卓哉 大石
章宏 古田
陽 澤田
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竹本油脂株式会社
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Publication of WO2023188655A1 publication Critical patent/WO2023188655A1/fr

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Classifications

    • 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
    • C04B24/02—Alcohols; Phenols; Ethers
    • 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
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • 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
    • C04B24/16—Sulfur-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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

Definitions

  • the present invention relates to a strength enhancer for hydraulic compositions, an admixture for hydraulic compositions, a hydraulic composition, and a cured product of the hydraulic composition. More specifically, a strength enhancer for a hydraulic composition that can develop high compressive strength early during curing of the hydraulic composition and maintain strength development after a long period of time, and water containing the same.
  • the present invention relates to an admixture for a hard composition, a hydraulic composition containing the strength enhancer or the admixture, and a cured hydraulic composition formed from the hydraulic composition.
  • hydraulic compositions typified by concrete are composed of cement, water, fine aggregate, coarse aggregate, admixtures for hydraulic compositions, and the like.
  • the admixture for hydraulic compositions contains a dispersion component whose main component is a polycarboxylic acid copolymer or the like, from the viewpoint of increasing the fluidity of the hydraulic composition.
  • Patent Document 1 discloses a strength improver for cement that causes less deterioration in the fluidity of a cement composition and can exhibit high compressive strength at an early age.
  • Patent Document 2 discloses a strength improver composition for hydraulic powders that provides a cured product with high initial strength.
  • Patent Document 3 discloses an early-strengthening agent for hydraulic compositions that is excellent in improving short-term strength.
  • an object of the present invention to provide a hydraulic composition that can develop high compressive strength at an early stage during curing of the hydraulic composition and maintain strength development after a long period of time.
  • the purpose of the present invention is to provide a strength enhancer.
  • the present inventors found that the above problems could be solved by containing both diethylene glycol (component A) and glycerin (component B).
  • component A diethylene glycol
  • component B glycerin
  • the following strength enhancers for hydraulic compositions, admixtures for hydraulic compositions, hydraulic compositions, and cured products of hydraulic compositions are provided.
  • a strength enhancer for a hydraulic composition used in a hydraulic composition containing a hydraulic binder A strength enhancer for a hydraulic composition, characterized by containing the following component A and the component B below.
  • Component A diethylene glycol.
  • Ingredient B Glycerin.
  • Component C a nitrogen-containing organic compound with a molecular weight of 500 or less.
  • Component D a sulfur-containing organic compound with a molecular weight of 500 or less.
  • Component E Divalent to tetrahydric polyhydric alcohol with a molecular weight of 500 or less (excluding those corresponding to component A, component B, component C, component D, and saccharides).
  • Component F carbonate ester compound with a molecular weight of 500 or less.
  • An admixture for a hydraulic composition comprising the strength enhancer for a hydraulic composition according to any one of [1] to [6] above, and a dispersant.
  • a hydraulic composition comprising the strength enhancer for hydraulic compositions according to any one of [1] to [6] above.
  • a cured product of a hydraulic composition which is a cured product of the hydraulic composition according to [8] or [9].
  • the strength enhancer for hydraulic compositions of the present invention has the effect of allowing the hydraulic composition to develop high compressive strength at an early stage during curing, while maintaining strength development even after a long period of time. It is.
  • the admixture for hydraulic compositions of the present invention can express high compressive strength at an early stage during curing of the hydraulic composition, and can be used for a long period of time. This has the effect that later strength development can also be maintained.
  • the hydraulic composition of the present invention exhibits high compressive strength at an early stage during curing, and maintains strength development after a long period of time. This has the effect of
  • the cured product of the hydraulic composition of the present invention is formed by the hydraulic composition of the present invention, and has the effect of having high compressive strength at an early stage during curing, and also maintaining strength development after a long period of time. It is something.
  • the strength enhancer for hydraulic compositions of the present invention is a strength enhancer for hydraulic compositions used in hydraulic compositions containing a hydraulic binder, and contains the following component A and component B. be.
  • Component A diethylene glycol.
  • Ingredient B Glycerin.
  • Such a strength enhancer for hydraulic compositions is capable of developing high compressive strength at an early stage (e.g., 24 to 48 hours of age) during curing of the hydraulic composition, while maintaining it for a long period of time (e.g., about 28 days of age). ) It is also possible to maintain strength development after the lapse of time.
  • the details of the mechanism by which the hydraulic composition exhibits high strength development at an early stage and maintains strength development after a long period of time are unknown, but it is presumed as follows.
  • the components of cement do not undergo hydration in an orderly manner, but instead undergo hydration and hardening as each component reacts with each other in a complex manner. Therefore, when only a single component is added, hydration progresses unevenly. That is, the progress of hydration is improved only in some parts, and the progress of hydration is reduced in some parts, so it is considered that the cured product as a whole does not exhibit sufficient strength.
  • component A and component B in the present invention, the bias in the progress of hydration can be eliminated, and it is possible to achieve high strength development at an early stage while maintaining strength development even after a long period of time. It will be done.
  • components having different functional groups such as component C, component D, component E, and component F, the above-mentioned effects can be expressed even better.
  • the strength enhancer for hydraulic compositions of the present invention has good compatibility with the dispersant, and is suitable for use in hydraulic compositions containing the strength enhancer for hydraulic compositions of the present invention and the dispersant.
  • the drug exhibits high formulation stability.
  • a component and B component In the present invention, it contains both diethylene glycol (component A) and glycerin (component B).
  • component A diethylene glycol
  • component B glycerin
  • the strength enhancer for hydraulic compositions of the present invention preferably further contains at least one selected from the following component C, component D, component E, and component F.
  • component C a nitrogen-containing organic compound with a molecular weight of 500 or less.
  • component D a sulfur-containing organic compound with a molecular weight of 500 or less.
  • Component E Divalent to tetrahydric polyhydric alcohol with a molecular weight of 500 or less (excluding components A, B, C, D, and sugars).
  • Component F carbonate ester compound with a molecular weight of 500 or less.
  • Component C is a nitrogen-containing organic compound with a molecular weight of 500 or less.
  • the lower limit of this molecular weight can be set to the same value as the nitrogen-containing organic compound that theoretically has the smallest molecular weight among the nitrogen-containing organic compounds.
  • the lower limit of the molecular weight of this nitrogen-containing organic compound can be 31.
  • component C includes tris(hydroxymethyl)aminomethane, diethanolamine, methyldiethanolamine, triethanolamine, diisopropanolamine, methyldiisopropanolamine, triisopropanolamine, diethanolisopropanolamine, ethanoldiisopropanolamine, and diethylenetriamine.
  • Component C may be used alone or in combination of two or more.
  • Component D is a sulfur-containing organic compound with a molecular weight of 500 or less.
  • the lower limit of this molecular weight can be set to the same value as the sulfur-containing organic compound that theoretically has the smallest molecular weight among sulfur-containing organic compounds.
  • the lower limit of the molecular weight of this sulfur-containing organic compound can be 94.
  • Component D specifically includes dimethylsulfone, ethylmethylsulfone, diethylsulfone, 2-hydroxyethylmethylsulfone, isopropylmethylsulfone, ethylphenylsulfone, tetramethylenesulfone, 4,4-dioxo-1,4-oxathiane.
  • hydroxymethanesulfonic acid ethylsulfonic acid, aminomethanesulfonic acid, 2-hydroxyethanesulfonic acid, 2-aminoethanesulfonic acid, benzenesulfonic acid, toluenesulfonic acid, 4-hydroxybenzenesulfonic acid, aminobenzene Examples include sulfonic acid, 3-amino-4-hydroxybenzenesulfonic acid, toluidine sulfonic acid, cresolsulfonic acid, methanesulfinic acid, hydroxymethanesulfinic acid, dicyclohexylsulfosuccinic acid, and their alkali metal salts and alkaline earth metal salts. I can do it.
  • Component D may be used alone or in combination of two or more.
  • Component E is a di- to tetrahydric polyhydric alcohol with a molecular weight of 500 or less (excluding components A, B, C, D, and sugars).
  • the lower limit of the molecular weight can be set to the same value as the divalent to tetravalent polyhydric alcohol that theoretically has the smallest molecular weight among the above polyhydric alcohols.
  • the lower limit of the molecular weight of the polyhydric alcohol can be 62.
  • Component E specifically includes ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 2,3-butanediol, 1, 4-butanediol, 3-methyl-1,3-butanediol, 1,2,4-butanetriol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,5- Pentanediol, 2,3-pentanediol, 2,4-pentanediol, 2,4-dimethyl-2,4-pentanediol, 2,4-dimethyl-1,5-pentanediol, 2,2,4-trimethyl -1,3-pentanediol, 1,2-cyclopentanediol, 1,3-cyclopentanediol, 1,4-cyclopen
  • Component E may be used alone or in combination of two or more.
  • Component F is a carbonate ester compound with a molecular weight of 500 or less.
  • the lower limit of this molecular weight can be set to the same value as the carbonate ester compound that theoretically has the smallest molecular weight among carbonate ester compounds.
  • the lower limit of the molecular weight of the carbonate ester compound can be 88.
  • component F examples include glycerol-1,2-carbonate, ethylene carbonate, propylene carbonate, dimethyl 2,5-dioxahexanedioate, dimethyl carbonate, diethyl carbonate, and 1,3-dioxan-2-one. , ethyl methyl carbonate and the like.
  • the F component may be used alone or in combination of two or more.
  • the strength enhancer for hydraulic compositions of the present invention more preferably contains at least two components selected from C component, D component, E component, and F component, and C component, D component, E component, and F component. It is particularly preferable to contain at least three components selected from the group consisting of: In this way, it is preferable that a plurality of components C, D, E, and F are included, and by doing so, particularly high compressive strength can be developed at an early stage during curing of the hydraulic composition. Furthermore, the strength development property after a long period of time can be maintained.
  • the total content of A component, B component, C component, D component, E component, and F component is 100 parts by mass
  • the total of A component and B component is 55 to 99 parts by mass
  • C component, D It is preferable that the total amount of components E, E and F is contained in a proportion of 1 to 45 parts by mass.
  • the C component, D component, E component, and F component in a total of 10 to 40 parts by mass
  • the strength enhancer for hydraulic compositions of the present invention may further contain other components in addition to component A, component B, component C, component D, component E, and component F.
  • constituents include conventional compounds such as sodium nitrite, calcium nitrite, sodium nitrate, calcium nitrate, sodium sulfite, calcium sulfite, lithium sulfate, sodium sulfate, potassium sulfate, sodium carbonate, sodium hydrogen carbonate, and calcium formate.
  • G component Known strength enhancers
  • the content ratio of other components can be, for example, 0 to 10 parts by mass, preferably 0 to 5 parts by mass, based on 100 parts by mass of the total amount of components A to F. .
  • the strength enhancer for hydraulic compositions of the present invention is used when preparing a hydraulic composition by adding kneading water to a binder (hydraulic binder).
  • the admixture for hydraulic compositions of the present invention contains the strength enhancer for hydraulic compositions of the present invention and a dispersant.
  • a dispersant By containing the strength enhancer for hydraulic compositions of the present invention, such admixtures for hydraulic compositions can quickly develop high compressive strength during curing of the hydraulic composition, and further, The strength development property of the cured product of the hydraulic composition after a long period of time can be maintained. Further, the strength enhancer for hydraulic compositions of the present invention has good compatibility with the dispersant, and the admixture for hydraulic compositions of the present invention has good formulation stability when it is an aqueous solution. Demonstrated.
  • the value of the blending ratio of the strength enhancer for hydraulic compositions and the dispersant is not particularly limited and can be set as appropriate. For example, it can be set to 0.25 to 4, preferably 0.5 to 2.5.
  • the dispersant is not particularly limited, and any dispersant used in conventionally known admixtures for hydraulic compositions can be appropriately selected. Examples include dispersants such as polycarboxylic acid copolymers, phosphate ester copolymers, naphthalene condensates, melamine condensates, phenol condensates, and lignin sulfonates.
  • the admixture for hydraulic compositions of the present invention may further contain other additives in addition to the strength enhancer and dispersant for hydraulic compositions of the present invention.
  • additives there are no particular restrictions on other additives, and they may be included as appropriate within a range that does not impair the effect.
  • other additives include setting retarders made of sugars and oxycarboxylate salts, AE agents made of anionic surfactants, antifoaming agents made of oxyalkylene compounds, etc., polyoxyalkylene Examples include shrinkage reducing agents such as alkyl ethers, thickeners such as cellulose ether compounds, preservatives such as isothiazoline compounds, and rust preventive agents such as nitrites.
  • the content of other additives can be, for example, 0 to 20% by mass in the admixture for hydraulic compositions.
  • Hydraulic composition In its first embodiment, the hydraulic composition of the present invention contains the admixture for hydraulic compositions of the present invention.
  • a second embodiment of the hydraulic composition of the present invention contains the strength enhancer for hydraulic compositions of the present invention. That is, in the second embodiment, instead of an admixture for hydraulic compositions as in the first embodiment, a strength enhancer for hydraulic compositions may be directly contained.
  • such hydraulic compositions can quickly develop high compressive strength during curing. Furthermore, the strength development property of the cured product after a long period of time is maintained.
  • the hydraulic composition of the present invention can contain a binder (hydraulic binder), water, fine aggregate, coarse aggregate, etc., like conventionally known hydraulic compositions.
  • the content ratio of the admixture for hydraulic compositions of the present invention or the strength enhancer for hydraulic compositions of the present invention is not particularly limited and can be set as appropriate.
  • the content of the admixture for hydraulic compositions of the present invention can be 0.01 to 3.0 parts by mass based on 100 parts by mass of the binder.
  • the content of the strength enhancer for the hydraulic composition of the present invention can be 0.01 to 1.5 parts by mass based on 100 parts by mass of the binder.
  • various Portland cements such as ordinary Portland cement, moderate heat Portland cement, low heat Portland cement, early strength Portland cement, sulfate-resistant Portland cement, various cements such as blast furnace cement, fly ash cement, silica fume cement, etc. can be mentioned.
  • various admixtures such as fly ash, pulverized blast furnace slag powder, pulverized limestone powder, stone powder, silica fume, and expansive materials may be used as the binder.
  • fine aggregate examples include river sand, mountain sand, land sand, sea sand, silica sand, crushed sand, various slag fine aggregates, etc., and may also contain fine particles such as clay.
  • Examples of the coarse aggregate include river gravel, mountain gravel, land gravel, crushed stone, various slag coarse aggregates, lightweight aggregates, and the like.
  • the hydraulic composition of the present invention may further contain other admixtures as appropriate within a range that does not impair the effect.
  • other admixtures include setting retardants made of sugars and oxycarboxylic acid salts, various water reducing agents, AE agents made of anionic surfactants, etc., antifoaming agents made of oxyalkylene compounds, etc. , curing accelerators made of alkanolamines, etc., shrinkage reducers made of polyoxyalkylene alkyl ethers, etc., thickeners made of cellulose ether compounds, rapid setting agents made of calcium sulfonate, etc., preservatives made of isothiazoline compounds, etc. Rust inhibitors made of , nitrite, etc. can be mentioned.
  • the content ratio of other admixtures can be, for example, 0 to 5 parts by mass based on 100 parts by mass of the binder.
  • a conventionally known ratio can be appropriately adopted as the ratio of water to binder (water/binder ratio).
  • water/binder ratio can be 20 to 70% by mass.
  • Hardened mortar, concrete, etc. can be obtained by filling this hydraulic composition into a mold or the like and curing it at room temperature or heating it with steam.
  • the cured product of the hydraulic composition of the present invention is a cured product of the hydraulic composition of the present invention.
  • the cured product of the hydraulic composition is formed from the hydraulic composition of the present invention, and has a high compressive strength at an early stage when cured, and further maintains strength development after a long period of time.
  • the hardened hydraulic composition refers to hardened mortar (hardened mortar), hardened concrete (hardened concrete), and the like.
  • Table 3 shows various mixing ratios of components A to F. However, if the content of component A or component B is "0", write "-" in the column of "component A/component B mass ratio".
  • the following admixture was used to maintain mortar flow within 220 ⁇ 15 mm.
  • the antifoaming agent was adjusted and added so that the air content of the finished mortar was 2% or less.
  • the strength enhancer is 0.2 to 0.3% of the binder (hydraulic binder) as shown in Table 5 (Table 5-1 to Table 5-2) when the concentration is 100%. It was added within the range of Further, the amount of dispersant Y-1 added was such that the mortar flow was within 220 ⁇ 15 mm. Further, the antifoaming agent was adjusted and added so that the air content of the finished mortar was 2% or less.
  • the compressive strength (compressive strength at 24 hours and 48 hours) was measured for each of the obtained 24-hour and 48-hour specimens, and then the average value of the compressive strengths of the three specimens was calculated. . Furthermore, the compressive strength ratio (%) was calculated based on Comparative Example 1, and evaluation was performed according to the evaluation criteria shown in Table 6. The results are shown in Table 5 (Table 5-1 to Table 5-2).
  • blast furnace slag powder #4000 manufactured by Esment Chubu Co., Ltd., density 2.88 g/cm 3
  • fly ash type II manufactured by Chubu Fly Ash Co., Ltd., density 2.33 g/cm 3
  • cm 3 was added at the same time as ordinary Portland cement.
  • each strength enhancer shown in Table 10 dispersant Y-1, and antifoaming agent (AFK-2 (trade name) manufactured by Takemoto Yushi Co., Ltd.) were mixed together, considering them to be part of the mixing water. It was added together with water and then kneaded for 120 seconds.
  • "Blank" means that no strength enhancer was added.
  • the amount of dispersant Y-1 added was such that the slump was within 18 ⁇ 1.5 cm. Further, the antifoaming agent was adjusted and added so that the air content of the mixed concrete was 2% or less.
  • Dispersants Y-1 to Y-4 were prepared as follows, and dispersant Y-1 was used to prepare the hydraulic composition (concrete).
  • reaction mixture was obtained by adjusting the pH to 8 and the concentration to 40% with ion-exchanged water and a 30% aqueous sodium hydroxide solution. This reaction mixture was designated as dispersant Y-1.
  • Dispersant Y-2, Y-4 Dispersant Y-2 was prepared in the same manner as Dispersant Y-1, except that it contained each of the structural units L and M shown in Table 7 in a predetermined proportion and had predetermined physical property values. Further, Y-4 was prepared in the same manner as dispersant Y-3, except that it contained each of the structural units L and M shown in Table 7 in a predetermined ratio and had predetermined physical property values.
  • L-1 to L-4, M-1, and M-2 are as follows.
  • M-1 Methacrylic acid
  • M-2 Acrylic acid
  • a cured body was prepared from the obtained hydraulic composition (concrete), and the compressive strength of the cured body was measured by the following method. The results are shown in Table 10.
  • the compressive strength (compressive strength at 24 hours and 48 hours) was measured for each of the obtained 24-hour and 48-hour specimens, and then the average value of the compressive strengths of the three specimens was calculated. . Furthermore, the compressive strength ratio (%) was calculated based on each of Comparative Examples 6 to 9, and the evaluation was performed according to the evaluation criteria shown in Table 9. The results are shown in Table 10.
  • a strength enhancer diluted solution was prepared in advance by diluting the strength enhancer shown in Table 11 with ion-exchanged water to a concentration of 40%. Then, this diluted solution of the strength enhancer and each of the dispersants Y-1 to Y-4 were mixed at a ratio of 55:45 (mass ratio), and then allowed to stand in a 20°C environment for one month. The stability of the formulation was evaluated by checking the state of the mixed solution after standing. The evaluation results are shown in Table 11.
  • the evaluation criteria for the formulation stability test is that if the mixed solution is separated into two layers after being left to stand, or if floating matter or precipitates are generated during standing, it is judged as "NG”, and if the mixture is not allowed to stand still, If no separation, floating matter, or precipitate was observed when the mixed solution was visually observed, it was judged as "OK.”
  • the strength enhancer for hydraulic compositions and the admixture for hydraulic compositions of the present invention can be used as additives for hydraulic compositions such as concrete and mortar. Furthermore, the hydraulic composition of the present invention can be used to form a cured hydraulic composition such as a cured concrete or a cured mortar.

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

Abstract

L'invention concerne un améliorateur de résistance pour une composition hydraulique, l'améliorateur de résistance permettant de manifester une résistance à la compression élevée à un stade précoce et de maintenir la manifestation de la résistance après une période de temps prolongée.　Un améliorateur de résistance pour une composition hydraulique utilisé dans une composition hydraulique contenant un liant hydraulique, l'améliorateur de résistance pour une composition hydraulique étant caractérisé par le fait qu'il contient du diéthylène glycol, qui est le composant A, et de la glycérine, qui est le composant B.
PCT/JP2022/048316 2022-03-29 2022-12-27 Améliorateur de résistance pour composition hydraulique, adjuvant pour composition hydraulique, composition hydraulique et produit durci à base de composition hydraulique WO2023188655A1 (fr)

Applications Claiming Priority (2)

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JP2022052924A JP2023145979A (ja) 2022-03-29 2022-03-29 水硬性組成物用強度増進剤、水硬性組成物用混和剤、水硬性組成物、及び水硬性組成物硬化体
JP2022-052924 2022-03-29

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110818310A (zh) * 2019-10-24 2020-02-21 中建西部建设西南有限公司 一种混凝土减胶剂及其制备方法和应用
JP2020050825A (ja) * 2018-09-28 2020-04-02 花王株式会社 地盤改良用固化材の製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020050825A (ja) * 2018-09-28 2020-04-02 花王株式会社 地盤改良用固化材の製造方法
CN110818310A (zh) * 2019-10-24 2020-02-21 中建西部建设西南有限公司 一种混凝土减胶剂及其制备方法和应用

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