WO1997042133A1 - Composition aqueuse auto-lissante a base de ciment - Google Patents

Composition aqueuse auto-lissante a base de ciment Download PDF

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Publication number
WO1997042133A1
WO1997042133A1 PCT/JP1996/001207 JP9601207W WO9742133A1 WO 1997042133 A1 WO1997042133 A1 WO 1997042133A1 JP 9601207 W JP9601207 W JP 9601207W WO 9742133 A1 WO9742133 A1 WO 9742133A1
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WO
WIPO (PCT)
Prior art keywords
cement
weight
fluidity
aqueous composition
parts
Prior art date
Application number
PCT/JP1996/001207
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English (en)
Japanese (ja)
Inventor
Kazuo Yamada
Hiroshi Hayashi
Katsuo Hosono
Koichi Soeda
Original Assignee
Chichibu Onoda Cement Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chichibu Onoda Cement Corporation filed Critical Chichibu Onoda Cement Corporation
Priority to PCT/JP1996/001207 priority Critical patent/WO1997042133A1/fr
Publication of WO1997042133A1 publication Critical patent/WO1997042133A1/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
    • 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
    • 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
    • C04B2111/60—Flooring materials
    • C04B2111/62—Self-levelling compositions

Definitions

  • the present invention relates to a self-pelling aqueous composition for building a horizontal floor in a building, and more particularly, to maintain a fluidity that can be applied for a long time after production and has sufficient strength after curing.
  • the present invention relates to a cement-based self-leveling aqueous composition having excellent surface flatness and exhibiting excellent dimensional stability even in a dry or wet state over a long period of time.
  • a method using trowel finishing has been adopted to obtain a flat floor with a flat structure, but in recent years, a self-leveling aqueous composition has been used, and construction with a flatter floor or high efficiency It is possible.
  • One of such self-leveling aqueous compositions is a cement-based self-leveling aqueous composition.
  • Cement-based self-leveling aqueous compositions have the characteristic of having excellent water resistance, but have a long working life until production and construction (meaning the time during which sufficient fluidity can be maintained after production to obtain a flat surface). There are problems such as insufficient sampling, large temperature dependence of the pot life, large material separation, many initial cracks, and large drying shrinkage.
  • Japanese Patent Publication No. 5-35100 states that if a mixture of granulated blast furnace slag powder, gypsum and cement is slurried together with other usual additives, it can flow freely and be easily and easily poured or pumped. It is disclosed that a horizontal surface can be formed quickly and accurately.
  • Japanese Patent Publication No. 2-40624 discloses that hardening and drying shrinkage can be reduced by adding 5 to 10% by weight of gypsum to a cement and further adding an amide compound of a specific component. .
  • Japanese Patent Publication No. 01-053226 discloses that the use of a specific hydroxycarboxylic acid and a specific component of an alkali metal salt in combination with a self-leveling material can suppress the deterioration of high fluidity over time. It is disclosed that if such a self-leveling material is mixed with an inorganic filler such as silica sand, calcium carbonate, fly ash, blast furnace slag, etc., an increase in economic effect and abrasion resistance will be improved.
  • an inorganic filler such as silica sand, calcium carbonate, fly ash, blast furnace slag, etc.
  • the present invention provides a cement-based self-leveling aqueous composition which has water resistance while maintaining fluidity, surface smoothness, and strength, can secure a long pot life, and has a small amount of shrinkage upon drying. It is intended to provide. Disclosure of the invention
  • the present inventor has conducted extensive research, and as a result, has been able to achieve the above object by blending anhydrous gypsum and a specific fluidity improving material with cement in specific ratios. It has been found that it is possible to obtain a cement-based self-pelling aqueous composition.
  • a specific amount of inorganic powder having no hydraulic or latent hydraulic properties should be blended as a fluidity improving material at the initial stage of cement hydration.
  • gypsum used as a base
  • a specific amount of anhydrous gypsum which has the property of slowly setting and showing a slight expansion, is used in a specific amount or more.
  • the present invention relates to a cement-based self-leveling aqueous composition containing cement, anhydrous gypsum, a fluidity improving material, a polycarboxylic acid-based dispersant, and water, wherein the water-free gypsum Z cement (weight ratio) or the 5Z 9 5 or more and less than 20 Z 80, and the fluidity improving material is 0.5 / ⁇ !
  • the water-free gypsum Z cement (weight ratio) or the 5Z 9 5 or more and less than 20 Z 80 and the fluidity improving material is 0.5 / ⁇ !
  • the initial stage of cement hydration it is composed of an inorganic powder having no hydraulic or latent hydraulic properties, and has a flowability improving material of Z cement (weight ratio) of 5 to 9 mm.
  • the polycarboxylic acid-based dispersant is contained in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of the total amount of cement, anhydrite and the fluidity improving material.
  • a cement-based self-pelling aqueous composition BEST MODE FOR CARRYING OUT THE INVENTION
  • the cement used in the present invention is not particularly limited, and examples thereof include ordinary cement, early-strength cement, moderate heat cement, ultra-high-strength cement, portland cement of sulfate-resistant cement, and mixed cement.
  • the compounding amount of the cement is 55 to 90% by weight, preferably 60 to 82% by weight, based on the total weight of the cement, the anhydrous gypsum and the fluidity improving material. If it is less than 55% by weight, the strength is insufficient, and if it exceeds 90% by weight, drying shrinkage becomes large. However, fly ash and silica in the mixed cement are excluded from the weight of the cement.
  • anhydrous gypsum used in the present invention examples include, but are not particularly limited to, natural type II anhydrous gypsum and by-product anhydrous gypsum.
  • Gypsum dihydrate, hemihydrate gypsum, etc. do not have a long-term shrinkage reduction effect because of the high rate of hydration reaction with cement.
  • the mixing amount of anhydrous gypsum should be such that the ratio of anhydrous gypsum Z cement (weight ratio) should be at least 5 955 and less than 20 Z80, and 8 Z92 to 14 Z86. Power, cement Dry shrinkage can be compensated for well by swelling, and excessive hydration reaction can be suppressed, and stabilization can be performed for a long period without swelling and separation.
  • the inorganic powder that does not show hydraulic or latent hydraulic properties is replaced with cement in J IS R5201 ⁇ Physical test method of cement ''. Except that a mixed powder of an inorganic powder sample (90 parts by weight) and calcium hydroxide (10 parts by weight) is used, the initial setting time of coagulation obtained by the same method is 6 hours or more, preferably 8 hours or more. Refers to the inorganic powder shown. That is, the above mixed powder was kneaded with an appropriate amount of water (water injection), placed in a container of 80 cm in height and 40 countries in height, and lowered to a standard size of 10 strokes using a Vicat needle device.
  • water injection water injection
  • a paste of standard softness is obtained so that the distance from the bottom is 6 mm and 1 mm.
  • the time when the tip of the needle stops at one stroke from the bottom surface is the first time, and the time (h) from the time when the mixed powder is injected to the first time is the first time.
  • the fluidity improving material used in the present invention an inorganic powder showing a starting time of 6 hours or more by the method is determined to be suitable. If the initial time is less than 6 hours, the fluidity is reduced, the transport time is restricted, and it is difficult to finish a large area flat.
  • k hydraulic property refers to the property of hardening by reacting with water when coexisting with water
  • latent hydraulic property refers to the power that does not exhibit the property of hardening even when coexisting with water.
  • the fluidity improving material used in the present invention needs to have an average particle size of 0.5 m to 0.1 mra.
  • the average particle size exceeds 0.1 fraction 1, the effect of improving fluidity is lost, and material separation is increased. If the average particle size is less than 0.5 / m, the fluidity is deteriorated.
  • the fluidity improving material used in the present invention is not particularly limited as long as it is an inorganic powder that satisfies the above properties, unless it has harmful properties as a self-leveling aqueous composition. , Coal ash, fly ash, limestone powder (charcoal powder), silica stone powder, crushed stone powder, alumina powder, gypsum and the like.
  • blast furnace slag When blast furnace slag is used, the behavior is the same as when the amount of cement is increased, The pot life is shortened, drying shrinkage increases, and it leads to cracks, which is not preferable.
  • a powder exhibiting a pozzolanic reaction that does not adversely affect the fluidity improvement described above, for example, a hydration-solidification reaction that lags behind the cement hydration reaction, does not adversely affect the pot life. Rather, it is preferable in terms of long-term strength enhancement.
  • a reaction between soluble silica and the like contained in fly ash and the like and calcium hydroxide generated by hydration of the cement examples include a reaction between soluble silica and the like contained in fly ash and the like and calcium hydroxide generated by hydration of the cement.
  • the fluidity improving material preferably contains as little carbon as possible in the coal ash and does not contain an organic substance that adsorbs a dispersing material such as organic impurities in crushed stone powder.
  • the compounding amount of the fluidity improving material used in the present invention is as follows.
  • Weight ratio is 5 to 95 to 40 Z 60, and particularly preferably 5 to 95 to 30 Z 70. If it is less than 5 Z95, there will be no fluidity improving effect, and if it exceeds 40/60, the strength will be adversely affected. When using a fluidity improving material, it is preferable to use it after mixing it with cement in advance.
  • the polycarboxylic acid-based dispersant used in the present invention is not particularly limited, but the following ones can ensure sufficient fluidity required for construction and can easily obtain a floor surface having excellent smoothness. Is preferred.
  • Dispersant d1 having the following structure is preferable because it has excellent flowability at high temperatures and keeps the working life in summer.
  • R 1 and R 4 each represent a hydrogen atom or a tyl group
  • R 2 represents an alkylene group having 2 to 4 carbon atoms
  • R 3 represents a hydrogen atom ⁇ Represents 1 to 5 alkyl groups
  • M! Represents a hydrogen atom, an alkali metal, an alkaline metal, ammonium or an organic amine, and 0 represents an integer of 1 to 100.
  • a structural unit (a) derived from a monomer copolymerizable with these monomers wherein the formula (1) is 10 to 95% by weight in all the structural units. %, Preferably 50 to 80% by weight, formula (2) is 95 to 5% by weight, preferably 20 to 50% by weight, and the structural unit (i) is a polycarboxylic acid based on 0 to 50% by weight. Powder.
  • the dispersant having the following structure is preferable because it has excellent performance in ensuring the pot life in summer and also has excellent fluidity at low temperatures, and can ensure pot life in winter. That is, the following formulas)-(7)
  • R 5 to R S are the same as R 1 , R ′ ° and R 11 each represent an alkyl group having i to 3 carbon atoms, and M 2 represents an alkali metal, an alkaline earth metal, ammonium or organic. Represents an amine, and X 1 is a sulfonic acid group or a compound of the formula (8) 10 S0 3 M 3 (8)
  • formula (3) or 45 to 65 mol% formula (4) is 8 to 23 mol%
  • formula (5) is 3 to 25 mol%
  • a polypyrrolic acid-based dispersant comprising Formula (6) in a proportion of 5 to 25 mol% and Formula (7) in a proportion of 3 to 15 mol%
  • the dispersant d3 having the following structure has high resistance to material separation in addition to the ability to secure the pot life in summer, and is particularly suitable for construction of a thick floor.
  • R 12 to R 16 are the same as R 1 , R 17 represents an alkyl group having 1 to 5 carbon atoms, X 2 represents a methylene group, an ethyleneoxy group or a propyleneoxy group, and X 3 represents an acryl group.
  • Ami de group and 2 _ acrylamide - 2 salt of methyl sulfonic acid showed a polymer block obtained by radical copolymerization, M 4 and M 5 are same as the M 2, r from 0 to 1 0 And s represents an integer of 0 to 30.
  • the formula (9) is 40 to 80 mol%
  • the formula (10) is 1 to 30 mol%
  • the formula (11) is 1 to 20 mol%
  • the dispersant d4 having the following structure is extremely excellent in maintaining fluidity at high and low temperatures, and has a performance capable of ensuring a sufficient pot life even under severe low temperature conditions of about 0 ° C.
  • R 1S , R 2 ⁇ R 21 and R 22 are the same as R 1
  • R IS is a phenyl group or a benzyl group
  • M 6 , M 7 and M 8 are the same as M 2
  • t is 10 is an integer of 30 to 30
  • u is an integer of 7 to 50
  • V is an integer of 1 to 20.
  • Consisting of the structural units represented by Formula (13) + Formula (14) is 25 to 45% by weight, preferably 30 to 40% by weight
  • Formula (14) + Formula (15) is 25 to 50% by weight, preferably 30% ⁇ 45% by weight
  • Formula (16) + Formula (17) is 5 to 25% by weight, preferably 5 to 20% by weight, and
  • Equation (18) + Equation (19) is the remainder, and each is a weight ratio
  • Formula (14) / Formula (13 is 15/8 / 5-4 0/60, preferably 15Z8 5-35Z65
  • Formula (15) / Formula (14) is 64/3 6-85Z15, Preferably, 7 ⁇ 30 to 85/15, a polycarboxylic acid dispersion comprising the formula (17) and the formula (16) in a ratio of 25/75 to 75/25, preferably 40/60 to 75Z25. Agent.
  • polycarboxylic acid-based dispersant those having a number average molecular weight of 2000 to 2000 (GPC method, in terms of pullulan) are preferable.
  • GPC method in terms of pullulan
  • Aquaqual PM-06 Korean Chemical Co., Ltd.
  • Pozoris NP-20R Long Term Evolution (Lot)
  • Leobuild SP-8N both manufactured by Nisso Master I-Builders
  • 7-750 manufactured by Zeon Corporation
  • OF-8 manufactured by Onoda
  • HP -8 Takemoto Yushi
  • a melamine-based dispersant in addition to the polycarboxylic acid-based dispersant, a melamine-based dispersant, a naphthylene-based dispersant, a lignin-based dispersant, or the like can be used alone or as a mixture of two or more kinds.
  • the blending amount of the polycarboxylic acid-based dispersant is preferably 0.1 to 3 parts by weight with respect to 100 parts by weight of cement, anhydrous gypsum and the fluidity improving material, and particularly preferably 0 to 3 parts by weight. 5 to 1.5 parts by weight is more preferable. If the amount is less than 0.1 part by weight, the dispersing effect is inferior.
  • the amount of water used in the present invention is such that the flow value specified in JAS S 15M-103 “Self-leveling material quality standards” of the Architectural Institute of Japan is 19 cm or more. It is preferable to use 30 to 80 parts by weight, more preferably 34 to 70 parts by weight, based on 100 parts by weight of the base material.
  • the cement-based self-leveling aqueous composition of the present invention may further comprise, as necessary, a setting accelerator for anhydrous gypsum, a shrinkage reducing agent, an antifoaming agent, a thickener, an aggregate, etc., in addition to the above essential components. Can be used.
  • setting accelerators for anhydrous gypsum include alkali metal salts and sulfur earth metal salts of sulfuric acid. Of these, potassium sulfate is preferred.
  • the setting amount of the setting accelerator for anhydrous gypsum is 0.05 to 5 parts by weight based on 100 parts by weight of cement, anhydrous gypsum and flow improver. The amount is preferably 1 part by weight, particularly preferably 0.2 to 1 part by weight.
  • shrinkage reducing agent examples include polyoxypropylene glycol having the number of repeating propylene units or 2 to 12; the number of repeating oxypropylene units is 2 to 12, and the number of repeating oxyethylene units is 2 to 12.
  • a polyoxypropylenepolyoxyethylene glycol having 6; an alkoxypolyoxy group having 1 to 6 carbon atoms, wherein the number of repeating ⁇ -pyrene units is 2 to 12, and the number of repeating oxyethylene units is 2 to 6, of this c propylene polyoxyethylene da recall include, Poriokishipuro propylene glycol are preferred repetition number of O carboxymethyl propylene units is from 2 to 1 2.
  • the compounding amount of the shrinkage reducing agent is usually 0.2 to 6 parts by weight, especially 0.5 to 2 parts by weight, based on 100 parts by weight of cement, anhydrous gypsum and flowability improving material. It is preferable because shrinkage due to drying is reduced.
  • the antifoaming agent examples include a silicone-based surfactant and a nonionic surfactant. Of these, nonionic surfactants are preferred.
  • the compounding amount of the antifoaming agent is preferably 0.01 to 0.6 parts by weight, more preferably 0.01 part by weight, based on 100 parts by weight of the total of cement, anhydrous gypsum and the flowability improving material. It is preferably from 5 to 0.4 parts by weight.
  • the thickener is not particularly restricted but includes methylcellulose, hydroquinethyl cellulose and carboxymethylcellulose. Of these, methyl cellulose is preferred. Use of such a thickener improves the resistance of the cured product to drying shrinkage.
  • the compounding amount of the thickener is preferably 0.01 to 0.6 parts by weight, more preferably 0.1 to 0.6 parts by weight, based on 100 parts by weight of cement, anhydrous gypsum, flowability improving material and aggregate. It is preferable to use 0.5 to 0.4 parts by weight from the viewpoint of reducing material separation during production.
  • the aggregate examples include, but are not limited to, river sand, sea sand, land sand, crushed sand, and artificial aggregate.
  • the particle size of the aggregate varies depending on the thickness of the self-leveling aqueous composition, but generally, it is preferably 5 fine or less and the coarse particle ratio is 1.5 to 3.0.
  • Aggregates can be used alone or in combination of two or more.
  • the amount of the aggregate is preferably 60 to 150 parts by weight, preferably 75 to 125 parts by weight, based on 100 parts by weight of the total of cement, anhydrous stone, and flowability improving material. It is more preferable to use parts by weight. When the amount of aggregate is less than 60 parts by weight, the drying shrinkage becomes large, and If it exceeds, appropriate fluidity cannot be obtained.
  • the initial setting time (h) of the setting is based on JIS R5201 “Physical test method for cement” using a mixture (90Z10 weight ratio) of a fluidity improver and calcium hydroxide reagent instead of cement. Except for I and T, the same method was used.
  • Dispersant Poly-L-uronic acid-based dispersant d 1 to d 4: Table 2
  • the average particle size was determined by optical, microscopic or electron microscopic observation.
  • coal ash, fly ash, silica stone powder, limestone powder, crushed stone powder, dihydrate gypsum, alumina powder, and silica powder do not show hydraulicity at the initial stage of hydration, and slag, hemi-gypsum, and ordinary cement Shows hydraulic properties.
  • silica fume has a preferable range of latent hydraulic property but an unfavorable range of particle size.
  • the flow value specified in the Architectural Institute of Japan JASS15M-103 (quality standard of self-leveling material) was measured. The measurement was performed immediately after production at 20 ° C, and at 3 hours and 6 hours after production, and at 30 ° C, 5 ° C, and 0 ° C at 6 hours after production, and kneaded for about 1 minute with a kneading spoon. Thereafter, the flow value was measured.
  • ⁇ indicates a value of 210 or more
  • ⁇ indicates a value of 190 to 209
  • X indicates a value of less than 190.
  • the termination time at 20 ° C was measured according to the physical test method of cement (J [SR 5201]). ⁇ indicates less than 12 hours, ⁇ indicates 12 to 14 hours, and X indicates more than 14 hours.
  • Judgment was evaluated as ⁇ when all the evaluation items were ⁇ , ⁇ when the evaluation consisted of ⁇ and ⁇ , and X when there was at least one X.
  • ffiS 1 ⁇ 2S (ran), attached J3 ⁇ 4fi) IR.
  • the abbreviation of ffiS indicates one.
  • Example 14 From the fluidity characteristics and material separation characteristics of Example 14 and Comparative Examples 3 and 4, when the average particle size exceeds 0.1, a large amount of water is required to secure the initial fluidity, If there is a problem in material separation (Comparative Example 3), and a large amount of very small particles having a mean particle size of less than 0.5 m is added to the fluidity improving material, it is qualified in the qualification test. Even so, a large amount of water is required to secure the initial fluidity, and it is thought that this is due to the gradual water absorption after kneading, but the fluidity declines quickly (Comparative Example 4). Inorganic powders having an average particle size of not more than 0.1 and not more than 0.5 / m are suitable (Examples 1, 8 to 14).
  • a polycarboxylic acid-based dispersant is suitable as a dispersant. More specifically, when a dispersant other than a polycarboxylic acid is used (Comparative Example 10), a sufficient pot life cannot be secured to obtain the initial fluidity.
  • the dispersant (d 1) can extend the pot life to 6 hours and shows excellent pot life characteristics even at high temperatures (Example 16).
  • Dispersant (d 2) shows excellent pot life characteristics even at low temperatures (Example 17), dispersant (d 3) has excellent material separation properties (Example 18), dispersant (d 4) Is particularly excellent in the pot life characteristic in all temperature ranges (Example 1).
  • the cement-based self-pelling aqueous composition of the present invention maintains fluidity that allows work for a long time after production, maintains sufficient strength after curing, and is dried or wet for a long period of time. It has excellent dimensional stability even if it is in a flat state, and is a very excellent flooring material in both aspects of quality and construction.

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

Abstract

Composition aqueuse auto-lissante à base de ciment contenant de l'anhydrite, un amplificateur de fluidité, un dispersant d'acide polycarboxylique et de l'eau, le rapport en poids entre l'anhydrite et le ciment étant compris entre 5:95 et moins de 20:80, l'amplificateur de fluidité possédant un diamètre moyen de particules de 0,5 νm à 0,1 mm et contenant une poudre inorganique exempte de caractère hydraulique ou de caractère hydraulique latent dans une étape précoce d'hydratation du ciment, le rapport en poids entre l'amplificateur de fluidité et le ciment étant de 5:95 à 40:60. La proportion de dispersant d'acide polycarboxylique est comprise entre 0,1 et 3 parties en poids sur la base de 100 parties en poids de la totalité du ciment, de l'anhydrite et de l'amplificateur de fluidité. Cette composition présente une fluidité suffisamment élevée pour permettre l'exécution de travaux pendant une durée prolongée après sa production, une résistance satisfaisante après durcissement, ainsi qu'une stabilité dimensionnelle excellente pendant une durée prolongée.
PCT/JP1996/001207 1996-05-02 1996-05-02 Composition aqueuse auto-lissante a base de ciment WO1997042133A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63129052A (ja) * 1986-11-15 1988-06-01 株式会社トクヤマ セメント系セルフレベリング材組成物
JPS641425B2 (fr) * 1983-04-28 1989-01-11 Ube Kosan Kk
JPH0153226B2 (fr) * 1982-06-30 1989-11-13 Denki Kagaku Kogyo Kk
JPH07267704A (ja) * 1994-03-31 1995-10-17 Chichibu Onoda Cement Corp セルフレベリング性水性組成物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0153226B2 (fr) * 1982-06-30 1989-11-13 Denki Kagaku Kogyo Kk
JPS641425B2 (fr) * 1983-04-28 1989-01-11 Ube Kosan Kk
JPS63129052A (ja) * 1986-11-15 1988-06-01 株式会社トクヤマ セメント系セルフレベリング材組成物
JPH07267704A (ja) * 1994-03-31 1995-10-17 Chichibu Onoda Cement Corp セルフレベリング性水性組成物

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