JP6275467B2 - Hydraulic composition - Google Patents

Description

  The present invention relates to a hydraulic composition and a method for producing the hydraulic composition.

  Due to the recent increase in safety awareness, there is an increasing demand for concrete work even in places with water, such as seismic protection work for revetments in civil engineering-related work, and the demand for underwater non-separable concrete is also increasing.

  Underwater non-separable concrete contains various thickeners so that cement components are not dispersed and dissolved in water. The inseparability of concrete in water can be improved with an increase in the amount of thickener added, but on the other hand, it increases the viscosity of the concrete and may adversely affect handling properties. For example, there are cases where the fluidity of concrete decreases and causes poor filling, and when pumping, a load exceeding the pumping capacity is applied to the pump, causing poor pumping. In addition, in order to prevent poor pumping, it is necessary to install a pump with high pumping capability in advance, leading to an increase in cost.

  In order to prevent these problems, there is a demand for underwater inseparable concrete capable of reducing concrete viscosity without reducing underwater inseparability.

  Patent Document 1 discloses that a specific slurry rheology modifier containing two kinds of water-soluble low molecular weight compounds can impart rheological properties such as material separation resistance. Patent Document 2 discloses a one-component rheology modifier containing a specific quaternary salt type cationic compound.

JP 2003-313536 A JP 2004-124007 A

  The present invention provides a hydraulic composition suitable for underwater inseparable concrete and the like that can reduce viscosity without lowering underwater inseparability.

The present invention is a hydraulic composition containing the following component (A), the following component (B), a hydraulic powder, and water,
(A) Content of a component is 0.75 mass part or more and 5.0 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition,
(B) Content of a component is 0.010 mass part or more and 1.5 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition,
When the content of the component (A) is 0.75 parts by mass or more and less than 2.5 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (A) and (B) The mass ratio of the component contents is 0.0080 or more and 0.32 or less in [(B) component content / (A) component content],
When the content of the component (A) is 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (A) and (B) The mass ratio of the component content is [(B) component content / (A) component content], which is 0.032 or more and 0.32 or less.
It relates to a hydraulic composition.
(A) Component: Cationic surfactant (A1) and salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid, m-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid A combination of an anionic aromatic compound (A2) selected from one or more of acid, p-phenolsulfonic acid, m-xylene-4-sulfonic acid, cumenesulfonic acid, methylsalicylic acid, styrenesulfonic acid, and chlorobenzoic acid, or A quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate Aromatic anionic group (a2) Quaternary salt type cationic compounds (A3)
Component (B): an anionic surfactant excluding (A2) and (a2), an anionic surfactant having a total carbon number of 8 or more and 22 or less, and a hydrocarbon having 8 or more and 22 or less carbon atoms Anionic surfactant selected from anionic surfactants having a group

Moreover, this invention is a manufacturing method of the hydraulic composition which has the process of mixing the following (A) component, the following (B) component, hydraulic powder, and water,
(A) A component is 0.75 mass part or more and 5.0 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition, (B) A component is 100 mass parts of water phases of a hydraulic composition. Is mixed at a ratio of 0.010 parts by mass or more and 1.5 parts by mass or less,
When (A) component is mixed at a ratio of 0.75 parts by mass or more and less than 2.5 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of (A) component and (B The mass ratio of the content of the component is 0.0080 or more and 0.32 or less in [(B) component content / (A) component content]
When the component (A) is mixed at a ratio of 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the amount of the component (A) and (B) The mass ratio of the component amounts is 0.032 or more and 0.32 or less in [(B) component amount / (A) component amount].
The present invention relates to a method for producing a hydraulic composition.
(A) Component: Cationic surfactant (A1) and salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid, m-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid A combination of an anionic aromatic compound (A2) selected from one or more of acid, p-phenolsulfonic acid, m-xylene-4-sulfonic acid, cumenesulfonic acid, methylsalicylic acid, styrenesulfonic acid, and chlorobenzoic acid, or A quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate Aromatic anionic group (a2) Quaternary salt type cationic compounds (A3)
Component (B): an anionic surfactant excluding (A2) and (a2), an anionic surfactant having a total carbon number of 8 or more and 22 or less, and a hydrocarbon having 8 or more and 22 or less carbon atoms Anionic surfactant selected from anionic surfactants having a group

  Moreover, this invention relates to the pumping method of the hydraulic composition which pumps the hydraulic composition of the said invention.

  Moreover, this invention relates to the placement method of the hydraulic composition which has the process of pumping the hydraulic composition of the said invention with a pump, and the process of casting the hydraulic composition pumped with the pump.

The present invention also relates to a viscosity reducing agent for a hydraulic composition comprising the following component (B), wherein the hydraulic composition contains the following component (A).
(B) component: an anionic surfactant excluding (A2) and (a2) of the following component (A), the anionic surfactant having a total carbon number of 8 or more and 22 or less, and a carbon number of 8 or more Anionic surfactant (A) component selected from anionic surfactants having a hydrocarbon group of 22 or less: cationic surfactant (A1) and salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid M-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid, p-phenolsulfonic acid, m-xylene-4-sulfonic acid, cumenesulfonic acid, methylsalicylic acid, styrenesulfonic acid, A combination of an anionic aromatic compound (A2) selected from one or more of chlorobenzoic acid, or a hydrocarbon group having 10 to 26 carbon atoms is small. 4 containing an aromatic anion group (a2) selected from one or more of quaternary cation groups (a1) and paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate. Class salt type cationic compound (A3)

  ADVANTAGE OF THE INVENTION According to this invention, the hydraulic composition suitable as underwater inseparable concrete etc. which can reduce a viscosity, without reducing inseparability in water is provided.

  The present inventors have found that the viscosity of concrete can be reduced without reducing the inseparability in water by adding the component (B) in the hydraulic composition using the component (A). (B) component selected by this invention fully penetrate | invades in the string-like micelle formed with (A) component, and as a result, it is guessed that the viscosity of a hydraulic composition is reduced. In addition, in the present invention, by setting the mass ratio of the component (A) to the component (B) as a predetermined condition, the amount of penetration of the component (B) into the string micelle becomes appropriate, and the string micelle is appropriately subdivided. It is considered that the viscosity is reduced by changing to a rod-like or spherical micelle.

[Hydraulic composition]
<(A) component>
One of the components (A) is a combination of a cationic surfactant (A1) and a specific anionic aromatic compound (A2). The other component (A) includes a quaternary cation group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and a specific aromatic anion group (a2) 4 This is a secondary salt type cationic compound (A3). Note that the quaternary salt type cationic compound having an aromatic anion group (a2) is excluded from the cationic surfactant (A1).

  From the viewpoint of forming string micelles, the component (A) includes a quaternary cation group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and a specific aromatic anion group (a2). A quaternary salt type cationic compound (A3) is preferred.

  The cationic surfactant (A1) is preferably a quaternary salt type cationic surfactant, and the quaternary salt type cationic surfactant has 10 to 26 carbon atoms in the structure. Those having at least one saturated or unsaturated linear or branched alkyl group containing are preferable. For example, alkyl (10 to 26 carbon atoms) trimethylammonium salt, alkyl (10 to 26 carbon atoms) pyridinium salt, alkyl (10 to 26 carbon atoms) imidazolinium salt, alkyl (10 to 10 carbon atoms) 26 or less) dimethylbenzylammonium salt, and the like. Specifically, hexadecyltrimethylammonium chloride, hexadecyltrimethylammonium bromide, octadecyltrimethylammonium chloride, octadecyltrimethylammonium bromide, tallow trimethylammonium chloride, tallow trimethylammonium bromide, Hydrogenated tallow trimethylammonium chloride, hydrogenated tallow trimethylammonium bromide, hexadecylethyldimethylammonium chloride Ride, octadecylethyldimethylammonium chloride, hexadecylpropyldimethylammonium chloride, hexadecylpyridinium chloride, 1,1-dimethyl-2-hexadecylimidazolinium chloride, hexadecyldimethylbenzylammonium chloride, etc. Two or more species may be used in combination. Specifically, from the viewpoint of water solubility and thickening effect, hexadecyltrimethylammonium chloride (for example, Cotamin 60W manufactured by Kao Corporation), octadecyltrimethylammonium chloride, hexadecylpyridinium chloride, and the like are preferable. In addition, two or more kinds of cationic surfactants having different carbon numbers in the above alkyl group can be used in combination.

  In addition, when the slurry rheology modifier of the present invention is applied to concrete or the like, a quaternary ammonium salt that does not contain halogen such as chlorine can be used from the viewpoint of preventing corrosion of the reinforcing steel and salt deterioration due to salt damage.

  Examples of quaternary salts containing no halogen such as chlorine include sulfates and sulfites. Specifically, hexadecyltrimethylammonium methosulfate, hexadecyldimethylethylammonium ethsulfate, octadecyltrimethylammonium methosulfate, octadecyldimethylethyl Ammonium etosulphate, tallow trimethylammonium methosulfate, tallow dimethylethylammonium etosulphate, 1,1-dimethyl-2-hexadecylimidazolinium methosulfate, hexadecyldimethylhydroxyethylammonium acetate, octadecyldimethylhydroxyethylammonium acetate, hexadecyl Dimethylhydroxyethylammonium propionate, octadecyldimethylhydride Carboxyethyl ammonium propionate, tallow dimethyl hydroxyethyl ammonium acetate, tallow dimethyl hydroxyethyl ammonium propionate, and the like. A quaternary ammonium salt containing no halogen such as chlorine can be obtained, for example, by quaternizing a tertiary amine with dimethyl sulfate or diethyl sulfate.

  Preferable cationic surfactant (A1) includes a cationic surfactant represented by the following general formula (A1-1).

[Wherein R ¹ is an alkyl group or alkenyl group having 10 to 26 carbon atoms, preferably an alkyl group, R ² is an alkyl group having 1 to 22 carbon atoms, or an alkenyl group having 2 to 22 carbon atoms. , R ³ and R ⁴ are each an alkyl group having 1 to 3 carbon atoms. X ⁻ represents an anionic group (excluding an anionic group derived from an anionic aromatic compound). ]

In General Formula (A1-1), R ¹ is preferably 12 or more carbon atoms, more preferably 14 or more carbon atoms. Preferably it is 22 or less carbon atoms, More preferably, it is 20 or less. R ² , R ³ and R ⁴ are each preferably a methyl group. X ⁻ is preferably an anionic group selected from sulfate ion, methyl sulfate ion and ethyl sulfate ion.

  Anionic aromatic compounds (A2) are salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid, m-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid, p-phenol. An anionic aromatic compound selected from one or more of sulfonic acid, m-xylene-4-sulfonic acid, cumene sulfonic acid, methyl salicylic acid, styrene sulfonic acid, and chlorobenzoic acid. These may form a salt, and two or more of these may be used in combination. When the anionic aromatic compound (A2) is a polymer, the weight average molecular weight (for example, gel permeation chromatography method / polyethylene oxide conversion) is preferably less than 500. The anionic aromatic compound (A2) is preferably p-toluenesulfonic acid or a salt thereof.

  The molar ratio of the cationic surfactant (A1) to the anionic aromatic compound (A2) is cationic surfactant (A1) / anionic aromatic compound (A2), preferably 0.15 or more, more preferably Is 0.40 or more, more preferably 0.80 or more, and preferably 1.5 or less, more preferably 1.2 or less, more preferably 1.0 or less.

  The quaternary salt type cationic compound (A3) has at least one quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms. In the quaternary cation group (a1), the hydrocarbon group preferably has 12 or more carbon atoms, more preferably 14 or more carbon atoms, and preferably 22 or less, more preferably 18 or less.

  Examples of the quaternary cationic group include a long-chain alkyl (C10 or more and 26 or less) hydroxyethyldimethylammonium group and a mono long-chain alkyl (C10 or more and 26 or less) trimethylammonium group. The quaternary cationic group (a1) can be derived from a quaternary salt type cationic compound. Specific examples of the compound include tetradecylhydroxyethyldimethylammonium, hexadecylhydroxyethyldimethylammonium, and octadecylhydroxyethyl. Dimethyl ammonium, oleyl hydroxyethyl dimethyl ammonium, tallow hydroxy ethyl dimethyl ammonium, hydrogenated tallow hydroxy ethyl dimethyl ammonium, tetradecyl trimethyl ammonium, hexadecyl trimethyl ammonium, octadecyl trimethyl ammonium, oleyl trimethyl ammonium, tallow trimethyl ammonium, hydrogenated tallow trimethyl ammonium , Hexadecyl dihydroxyethyl methyl ammonium, octadecyl dihydride Ciethylmethylammonium, oleyldihydroxyethylmethylammonium, tarodihydroxyethylmethylammonium, hydrogenated tarodihydroxyethylmethylammonium, hexadecylpyridinium, 1,1-dimethyl-2-hexadecylimidazolinium, etc. Can be mentioned. Of these, hexadecyltrimethylammonium, octadecyltrimethylammonium, tallowtrimethylammonium, and hydrogenated tallowtrimethylammonium are more preferable.

  The quaternary salt type cationic compound (A3) includes an aromatic anion group (a2) selected from one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate. . The aromatic anion group (a2) is preferably paratoluenesulfonate.

  In the quaternary salt type cationic compound (A3), the length of the hydrocarbon group is different as the quaternary cation group (a1) of the quaternary salt type cationic compound (A3) in that the temperature range for thickening can be widened. It is preferable that two or more quaternary cation groups are present. For this purpose, two or more quaternary salt type cationic compounds (A) having different quaternary cation group hydrocarbon groups may be used, Even if the quaternary salt type cationic compound (A) having a quaternary cation group in which two or more hydrocarbon groups having different lengths are bonded to one cation group, the quaternary having different hydrocarbon group lengths is used. Either a quaternary salt type cationic compound (A) having two or more cationic groups may be used, or a combination thereof may be used. Of these, two or more quaternary salt type cationic compounds (A) having different quaternary cationic hydrocarbon groups are used in combination with water solubility and rheology modification effect. Is preferred.

  Examples of the quaternary salt type cationic compound (A3) include compounds represented by the following general formula (A3-1) [hereinafter referred to as cationic compound (A3-1)].

Wherein, R ^ll is 10 or more carbon atoms, 26 an alkyl group, R ^l2 is 1 or more carbon atoms, 22 an alkyl group or the number 2 or 3 hydroxy alkyl group having a carbon, R ^l3 and R ^l4 are each , An alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 2 or 3 carbon atoms, at least one of which is a hydroxyalkyl group having 2 or 3 carbon atoms. X ^1- represents an aromatic anion group selected from one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate, preferably paratoluenesulfonate. ]

In general formula (A3-1), ^Rll is preferably an alkyl group having 12 or more carbon atoms, more preferably 14 or more, and preferably 22 or less, more preferably 20 or less. Further, it is preferable that at least one of R ^l2, R ^l3 and R ^l4 is a hydroxyalkyl group having 2 or 3 carbon atoms. If R ¹² is not a hydroxyalkyl group having 2 or 3 carbon atoms, R ^l2 is a methyl group is preferable.

  The cationic compound (A3-1) is a compound obtained by using an amine and an anionic aromatic compound as raw materials in a molar ratio of anionic aromatic compound / amine = 0.93 or more and 1.02 or less. . This anionic aromatic compound is derived from the predetermined aromatic anion group (a2). The reaction between the amine and the anionic aromatic compound can be carried out batchwise or continuously, and in any case, the molar ratio is the same as that used to produce the cationic compound (A3-1). It is calculated based on the number of moles of the amine and the anionic aromatic compound. In addition, the cationic compound (A3-1) is preferably a compound obtained by reacting an amine and an anionic aromatic compound in the molar ratio at an amine reaction rate of 99 to 100%. Here, the reaction rate of amine means a quaternization rate.

  In the method for producing the cationic compound (A3-1), the cationic compound (A3-1) is a compound obtained by using an epoxy compound as a raw material, that is, an amine and an anionic aromatic as a raw material. A compound obtained by using a compound and an epoxy compound, preferably a compound having an anionic aromatic compound / amine molar ratio of 0.93 or more and 1.02 or less. Also in this case, the reaction rate of the amine is preferably 99 or more and 100% or less. Therefore, the cationic compound (A3-1) is a step in which an epoxy compound is added to an amine in the presence of an anionic aromatic compound having a molar ratio of 0.93 to 1.02 with respect to the amine ( Compounds obtained by the production process having I) are preferred.

  In the present invention, including the case where an epoxy compound is added, the molar ratio of the anionic aromatic compound to the raw material amine is preferably an anionic aromatic compound / raw material amine, preferably 0.93 or more, more preferably 0.94 or more. , More preferably 0.95 or more, more preferably 0.98 or more, and preferably 1.02 or less, more preferably 1.01 or less, more preferably 1.00 or less. If this molar ratio is 0.93 or more, a cord-like micelle component is likely to be generated, so an appropriate slurry viscosity is obtained, and if it is 1.02 or less, there are not too many anionic aromatic compounds. A moderate slurry viscosity can be obtained without shortening the relaxation time.

  The amine is a compound derived from the quaternary cation group in the general formula (A3-1), specifically, dodecyldimethylamine, tetradecyldimethylamine, hexadecyldimethylamine, octadecyldimethylamine, behenyldimethylamine. Preferably, it is an amine selected from hexadecyldimethylamine, octadecyldimethylamine and behenyldimethylamine, more preferably hexadecyldimethylamine and / or octadecyldimethylamine.

The cationic compound (A3-1) includes a compound (A-C ₁₆ ) in which R ¹¹ in the general formula (A3-1) is an alkyl group having 16 carbon atoms and a compound (A-) that is an alkyl group having 18 carbon atoms. C ₁₈ ) are preferably contained, and these ratios are (A−C ₁₆ ) / (A−C ₁₈ ) = 20/80 or more in terms of molar ratio from the viewpoint of product stability and temperature dependency of performance. 40/60 or more is more preferable, 45/55 or more is more preferable, 80/20 or less is preferable, 60/40 or less is more preferable, 55/45 or less is more preferable, and 50/50 is more preferable. And may be 50/50. Further, the cationic compound (A3-1) is a ratio of the compound in which R ¹¹ in the general formula (A3-1) is an alkyl group having a carbon number other than an alkyl group having 16 carbon atoms and an alkyl group having 18 carbon atoms. However, from the viewpoint of the effect of imparting viscosity to the slurry, the total amount of the cationic compound (A3-1) is preferably 10 mol% or less, more preferably 5 mol% or less, more preferably 1 mol% or less. It is preferable to select the type and composition of the amine so as to satisfy the molar ratio and the ratio.

The aromatic anionic compound comprises X ⁻ in the general formula (A3-1) which is an aromatic anion group (a2), an anion group such as a sulfonic acid group or a carboxyl group, and an aromatic group such as a benzene ring. The compound which has these. Specific examples include p-toluenesulfonic acid, salicylic acid, metaxylenesulfonic acid, cumenesulfonic acid, styrenesulfonic acid, benzenesulfonic acid, benzoic acid, and salts thereof. Of these, p-toluenesulfonic acid is preferred. Further, these compounds can be used in the form of a salt such as sodium paratoluenesulfonate.

In the cationic compound (A3-1), the hydroxyalkyl groups of R ¹³ and R ¹⁴ in the general formula (A3-1) can be generated by adding an epoxy compound to an amine. After addition of one molecule of the epoxy compound, addition is continuously performed, and a compound having a chain such as diethylene glycol and polyethylene glycol may be included. That is, at least one of R ¹³ and R ¹⁴ is preferably a hydroxyalkyl group having 2 or 3 carbon atoms, but these carbon numbers are average values, and there is a distribution in the number of added moles of oxyethylene groups. It may be.

  Examples of the epoxy compound include those having 2 or 3 carbon atoms, and specific examples include ethylene oxide, propylene oxide, and epichlorohydrin from the viewpoint of reactivity.

  The molar ratio of the epoxy compound to the amine used as a raw material can be determined from the viewpoint of the production efficiency and production cost of the cationic compound (A3-1), and is preferably an epoxy compound / amine, preferably 1.0 or more. More preferably, it is 1.05 or more, more preferably 1.2 or more, and preferably 3.0 or less, more preferably 2.0 or less, more preferably 1.5 or less. If the molar ratio is 1.0 or more, string-like micelles are sufficiently formed and the effect of imparting viscosity to the slurry is good. If the molar ratio is 3.0 or less, the relaxation time of the string-like micelles is appropriate. The effect is good.

When the cationic compound (A3-1) is a compound obtained by further using an epoxy compound as a raw material, the cationic compound (A3-1) is a production method having the following steps (I) and (II): The total amount of anionic aromatic compounds used in step (I) and step (II) is 0.93 or more and 1.02 in terms of molar ratio to the amine used in step (I). The following is preferable.
Step (I): Adding an epoxy compound to an amine in the presence of an anionic aromatic compound Step (II): Further adding an anionic aromatic compound to the reaction product obtained in Step (I) Process

  Step (I) is a step of adding an epoxy compound to a raw material amine in the presence of a predetermined amount of an anionic aromatic compound. The addition reaction of an epoxy compound can be performed according to a known method. For example, the reaction temperature is preferably 30 ° C. or higher, more preferably 50 ° C. or higher, and preferably 150 ° C. or lower, more preferably 120 ° C. The reaction time is preferably 0.05 hours or longer, more preferably 0.1 hours or longer, and preferably 20 hours or shorter, more preferably 10 hours or shorter. The completion of the addition reaction of the epoxy compound can be confirmed by quantifying the residual amount of amine used as a raw material. The residual amount of raw material amine can be determined by back titration using potentiometric titration.

  In the present invention, addition of an anionic aromatic compound to the reaction product obtained in step (I) can further enhance the addition reaction of the epoxy compound, that is, the quaternization reaction is performed. Since it progresses, it is preferable from the rheology modifier excellent in viscoelasticity expression being obtained. However, when the step (II) is performed, the total of the anionic aromatic compounds used in the step (I) and the step (II) is 0. 0 by mole with respect to the amine used as the raw material used in the step (I). 93 or more and 1.02 or less. That is, based on the amine charged in step (I), the total molar ratio of the anionic aromatic compound used in step (I) and the anionic aromatic compound further added in step (II) is 0.93. As described above, an anionic aromatic compound is further added to the reaction product obtained in the step (I) so as to be 1.02 or less.

  The molar ratio of the anionic aromatic compound to the amine in step (I) is preferably 0.90 or more, more preferably 0.92 or more, and preferably 0.98 or less, more preferably 0.96 or less. The molar ratio of the anionic aromatic compound to the amine used in step (I) in step (II) is preferably 0.01 or more, more preferably 0.03 or more, and preferably 0.12 or less. Preferably it is 0.06 or less.

  Further, the ratio (M1) of the molar ratio of the anionic aromatic compound to the amine in the step (I) and the molar ratio (M2) of the anionic aromatic compound to the amine used in the step (I) in the step (II) ( M2) / (M1) is preferably 0.01 or more, more preferably 0.03 or more, and preferably 0.13 or less, more preferably 0.07 or less.

  The cationic compound (A3-1) is a quaternary salt type compound having both a quaternary cation group and an aromatic anion group (a2) having a function of forming an aggregate and increasing the viscosity in an aqueous solution or slurry. Therefore, it is not necessary to measure and add two kinds of chemicals, quaternary cationic compounds and aromatic anionic compounds separately, and the same thickened state can be obtained by measuring and adding one kind of chemicals. Excellent.

  Since the cationic compound (A3-1) does not contain a halogen element due to its production method, there is no risk of accelerating its corrosion even when a metal is present at the place of use.

The cationic compound (A3-1) preferably has two or more quaternary cationic groups having different carbon numbers of R ^{11 in} the general formula (A3-1) from the viewpoint of widening the temperature range in which the viscosity is increased. Further, from the viewpoint of enhancing the solubility of the rheology modifier in water and the effect of the rheology modification, two types of cationic compounds (A3-1) having different alkyl group (R ¹¹ ) lengths of the quaternary cationic groups are used. It is preferable to use the above.

<(B) component>
(B) component is an anionic surfactant except (A2) and (a2), Comprising: An anionic surfactant with a total carbon number of 8 or more and 22 or less, and a carbon number of 8 or more and 22 or less carbonization An anionic surfactant selected from anionic surfactants having a hydrogen group.

  Among the components (B), in the anionic surfactant having a hydrocarbon group having 8 to 22 carbon atoms, the hydrocarbon group has 8 or more, preferably 12 or more carbon atoms from the viewpoint of viscosity reduction. , 22 or less, preferably 18 or less. The hydrocarbon group is preferably an alkyl group or an alkenyl group.

  As the component (B), an alkylnaphthalenesulfonic acid having a total carbon number of 8 or more and 22 or less, an alkyl or alkenylbenzenesulfonic acid having an alkyl group or an alkenyl group having a carbon number of 8 or more and 22 or less, a carbon number of 8 or more and 22 or less Alkyl or alkenyl sulfate having an alkyl group or alkenyl group, polyoxyethylene alkyl or alkenyl ether sulfate having an alkyl group or alkenyl group having 8 to 22 carbon atoms, fatty acid having a total carbon number of 8 to 22 and these One or more anionic surfactants selected from the group consisting of alkali metal salts are exemplified.

  As the component (B), an alkylnaphthalenesulfonic acid having a total carbon number of 8 or more and 22 or less, an alkyl or alkenylbenzenesulfonic acid having an alkyl group or an alkenyl group having a carbon number of 8 or more and 22 or less, a carbon number of 8 or more and 22 or less One selected from the group consisting of alkyl or alkenyl sulfuric acid having an alkyl group or alkenyl group, polyoxyethylene alkyl or alkenyl ether sulfuric acid having an alkyl group or alkenyl group having 8 to 22 carbon atoms, and alkali metal salts thereof. The above anionic surfactants are preferred.

  As the alkyl naphthalene sulfonic acid having a total carbon number of 8 or more and 22 or less and its alkali metal salt, the number of carbon atoms of the alkyl group is preferably 2 or more, more preferably 4 or more, and preferably 8 or less from the viewpoint of viscosity reduction. More preferably, 6 or less are mentioned. Accordingly, the total number of carbon atoms of the alkylnaphthalenesulfonic acid and its alkali metal salt is preferably 12 or more, more preferably 14 or more, and preferably 18 or less, more preferably 16 or less.

  The alkyl or alkenyl benzene sulfonic acid and its alkali metal salt are those having an alkyl group or alkenyl group of 6 or more, preferably 8 or more, and 18 or less, preferably 16 or less from the viewpoint of viscosity reduction. Is mentioned. Therefore, the alkyl or alkenylbenzenesulfonic acid and the alkali metal salt thereof are alkyl or alkenylbenzenesulfonic acid having 6 or more, preferably 8 or more, and preferably 18 or less, more preferably 16 alkyl or alkenyl groups. And alkali metal salts thereof.

  Further, examples of the alkyl or alkenyl sulfuric acid and alkali metal salts thereof include those having an alkyl group or alkenyl group of 8 or more, preferably 12 or more, and 22 or less, preferably 18 or less, from the viewpoint of viscosity reduction. It is done. Therefore, the alkyl or alkenyl sulfuric acid and the alkali metal salt thereof include an alkyl or alkenyl sulfate having an alkyl group or an alkenyl group having 8 or more, preferably 12 or more, and preferably 18 or less, and an alkali metal salt thereof. Can be mentioned.

  The polyoxyethylene alkyl or alkenyl ether sulfuric acid and its alkali metal salt preferably have an ethylene oxide average addition mole number of 0.1 or more, more preferably 1 or more, and preferably 5 or less, from the viewpoint of viscosity reduction. More preferably, 3 or less are mentioned. The added mole number of ethylene oxide is preferably 1 or more, preferably 10 or less, more preferably 8 or less, and still more preferably 5 or less. The alkyl group or alkenyl group of polyoxyethylene alkyl or alkenyl ether includes those having 8 or more carbon atoms, preferably 12 or more carbon atoms, and 22 or less carbon atoms, preferably 18 or less carbon atoms. Therefore, polyoxyethylene alkyl or alkenyl ether sulfuric acid and alkali metal salts thereof have an alkyl group or an alkenyl group having 8 or more, preferably 12 or more, and 22 or less, preferably 18 or less, and an average addition of ethylene oxide. Examples thereof include polyoxyethylene alkyl or alkenyl ether sulfuric acid and alkali metal salts thereof in which the number of moles is preferably 0.1 or more, more preferably 1 or more, and preferably 5 or less, more preferably 3 or less.

  Moreover, as a fatty acid and its alkali metal salt, a total carbon number is 8 or more, Preferably it is 12 or more, and 22 or less, Preferably it is 18 or less from a viewpoint of viscosity reduction. As the fatty acid and its salt, a compound selected from caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid and alkali metal salts thereof is preferable.

  Component (B) is an alkylnaphthalene having an alkyl group with a carbon number of preferably 2 or more, more preferably 4 or more, and preferably 8 or less, more preferably 6 or less, from the viewpoint of inseparability in water and pumpability. One or more anionic surfactants selected from sulfonic acids and alkali metal salts thereof are more preferable.

<Hydraulic powder>
The hydraulic powder is a powder that hardens when mixed with water. For example, ordinary Portland cement, early-strength Portland cement, ultra-early strength Portland cement, sulfate-resistant Portland cement, low heat Portland cement, white Portland cement, Eco-cement (for example, JIS R5214 etc.) is mentioned. Among these, from the viewpoint of shortening the time required to reach the required strength of the hydraulic composition, a cement selected from early-strength Portland cement, ordinary Portland cement, sulfate-resistant Portland cement and white Portland cement is preferable. Portland cement and ordinary Portland cement are more preferable.

  The hydraulic powder may include blast furnace slag, fly ash, silica fume and the like, and may include non-hydraulic fine limestone powder and the like. As the hydraulic powder, silica fume cement or blast furnace cement in which cement and blast furnace slag, fly ash, silica fume and the like are mixed may be used.

<Aggregate>
The hydraulic composition of the present invention preferably contains an aggregate. Examples of the aggregate include fine aggregate and coarse aggregate. The fine aggregate is preferably mountain sand, land sand, river sand and crushed sand, and the coarse aggregate is preferably mountain gravel, land gravel, river gravel and crushed stone. Depending on the application, lightweight aggregates may be used. The term “aggregate” is based on “Concrete Overview” (published on June 10, 1998, published by Technical Shoin).

<Dispersant>
The hydraulic composition of the present invention preferably contains a dispersant. The dispersant is a dispersant for hydraulic powder, and includes a naphthalene polymer, a melamine polymer, a phenol polymer, and a lignin polymer, and the time required to reach the required strength of the hydraulic composition. From the viewpoint of shortening, it is preferably a dispersant selected from naphthalene polymers and polycarboxylic acid copolymers, and more preferably a dispersant selected from naphthalene polymers.

  As the naphthalene polymer, naphthalene sulfonate formaldehyde condensate (for example, Mighty 150 manufactured by Kao Corporation), and as the melamine polymer, melamine sulfonate formaldehyde condensate (for example, Mighty 150-V2 manufactured by Kao Corporation), phenol Phenolsulfonic acid formaldehyde condensates (compounds described in JP-A-49-104919) and the like as lignin polymers, and lignin sulfonate (Ultragin NA from Borregard, Nippon Paper Chemical Co., Ltd.) Company-extracted sun extract, vanillex, pearl rex, etc.) can be used.

  As the polycarboxylic acid-based copolymer, a copolymer of a monoester of polyalkylene glycol and (meth) acrylic acid and a carboxylic acid such as (meth) acrylic acid (for example, described in JP-A-8-12397) Compounds), copolymers of unsaturated alcohols having polyalkylene glycol and carboxylic acids such as (meth) acrylic acid, copolymers of unsaturated alcohols having polyalkylene glycol and dicarboxylic acids such as maleic acid, etc. Can be used. Here, (meth) acrylic acid means a carboxylic acid selected from acrylic acid and methacrylic acid.

  As a polycarboxylic acid copolymer, a monomer (1) represented by the following general formula (1) and a monomer (2) represented by the following general formula (2) are polymerized. The resulting copolymer [hereinafter referred to as polycarboxylic acid copolymer (I)] can be used.

[Where,
R ¹ , R ² : hydrogen atom or methyl group 1: number of 0 or more and 2 or less m: number of 0 or 1 AO: alkyleneoxy group of 2 or more and 4 or less carbon atoms n: average number of added moles of AO, A number between 5 and 150,
R ^{3 represents a} hydrogen atom or an alkyl group having 1 to 4 carbon atoms. ]

[Where,
R ⁴ , R ⁵ , R ⁶ : hydrogen atom, methyl group, or (CH ₂ ) _m1 COOM ²
M ¹ and M ² : each represents a number of hydrogen atom, alkali metal, alkaline earth metal (1/2 atom), ammonium, alkylammonium, or substituted alkylammonium m1: 0 to 2; Note that (CH ₂ ) _m1 COOM ² may form an anhydride with COOM ¹ . ]

  In general formula (1), AO is preferably an alkyleneoxy group (ethyleneoxy group) having 2 or 3 carbon atoms, more preferably 2 carbon atoms, from the viewpoint of fluidity of the hydraulic composition.

  From the viewpoint of improving the strength of the hydraulic composition after 24 hours, n is preferably a number of 9 or more, more preferably 20 or more, more preferably 50 or more, more preferably 70 or more. From the viewpoint of initial fluidity of the hydraulic composition, n is preferably a number of 150 or less, more preferably 130 or less.

When m is 0, l is preferably 1 or 2. When m is 1, l is preferably 0. From the viewpoint of polymerizability at the time of polymerization of the copolymer, m is preferably 1. When m is 0, R ³ is preferably a hydrogen atom from the viewpoint of ease of production of the monomer. When m is 1, R ³ is preferably an alkyl group having 1 to 4 carbon atoms from the viewpoint of ease of production of the monomer, and more preferably a methyl group from the viewpoint of water solubility.

  As the monomer (1), for example, an ester of a polyalkylene glycol and (meth) acrylic acid, an ether obtained by adding an alkylene oxide to an alkenyl alcohol, or the like can be used. Monomer (1) is preferably an ester of polyalkylene glycol and (meth) acrylic acid from the viewpoint of polymerizability during polymerization of the copolymer.

  As an ester of polyalkylene glycol and (meth) acrylic acid, an ester of alkylene glycol and (meth) acrylic acid blocked at one end can be used. Specifically, one or more kinds such as methoxypolyethylene glycol acrylate, methoxypolyethylene glycol methacrylate, ethoxypolyethylene glycol acrylate, and ethoxypolyethylene glycol methacrylate can be used.

  Further, as an ether in which an alkylene oxide is added to an alkenyl alcohol, an allyl alcohol ethylene oxide adduct or the like can be used. Specifically, an ethylene oxide adduct of methallyl alcohol, an ethylene oxide adduct of 3-methyl-3-buten-1-ol, and the like can be used.

  As a monomer (2), 1 or more types chosen from acrylic acid or its salt, methacrylic acid or its salt, maleic acid or its salt, maleic anhydride, etc. can be used. The monomer (2) is preferably methacrylic acid or a salt thereof from the viewpoint of polymerizability at the time of polymerization of the copolymer when m of the monomer (1) is 1. When m is 0, maleic acid or a salt thereof and maleic anhydride are preferred from the viewpoint of polymerizability at the time of polymerization of the copolymer.

<Other ingredients>
The hydraulic composition may further contain other components as long as the effects of the present invention are not affected. For example, AE agent, retarder, foaming agent, thickener, foaming agent, waterproofing agent, fluidizing agent, antifoaming agent and the like can be mentioned.

<Composition of hydraulic composition>
In the hydraulic composition of the present invention, the content of the component (A) is 0.75 parts by mass or more with respect to 100 parts by mass of the aqueous phase of the hydraulic composition from the viewpoint of ensuring inseparability in water and reducing the viscosity. 5.0 parts by mass or less. From the viewpoint of securing inseparability in water, the content of component (A) is 0.75 parts by mass or more, preferably 0.85 parts by mass or more, more preferably 100 parts by mass of the aqueous phase of the hydraulic composition. Is 1.0 part by mass or more, and from the viewpoint of viscosity reduction, 5.0 parts by mass or less, preferably 4.0 parts by mass or less, more preferably less than 2.5 parts by mass, more preferably 1.5 parts by mass. It is below mass parts. When the component (A) is a combination of the cationic surfactant (A1) and the anionic aromatic compound (A2), this content is the total content thereof. In addition, unless otherwise indicated, content of (A) component is content of effective component conversion, and mass ratio is also based on content of effective component conversion.

  Here, the water phase of the hydraulic composition refers to water and water such as the component (A) and the component (B) obtained by removing a solid phase insoluble in water such as hydraulic powder from the hydraulic composition. It is a liquid phase containing dissolved components. As the water of the hydraulic composition according to the present invention, those usually used in the art for the preparation of concrete can be used, and examples thereof include tap water. The aqueous phase can be based on that formed at the temperature in use. Usually, a liquid phase formed at a temperature within this range can be used as a water phase based on a dissolved state at 5 ° C. or more and 35 ° C.

  In the hydraulic composition of the present invention, the content of the component (B) is 0.010 parts by mass or more with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, from the viewpoint of reducing viscosity and securing inseparability in water. 1.5 parts by mass or less. From the viewpoint of reducing the viscosity, the content of the component (B) is 0.010 parts by mass or more, preferably 0.015 parts by mass or more, more preferably 0.005 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition. It is 020 parts by mass or more, and from the viewpoint of ensuring inseparability in water, it is 1.5 parts by mass or less, preferably 1.0 part by mass or less, more preferably 0.50 part by mass or less. In addition, unless otherwise indicated, content of (B) component is content of effective component conversion, and mass ratio is also based on content of effective component conversion.

In the hydraulic composition of the present invention, the mass ratio of the content of the component (A) and the content of the component (B) is [the content of the component (B) / the content of the component (A)], and a specific range. It is in.
That is, when the content of the component (A) is 0.75 parts by mass or more and less than 2.5 parts by mass, preferably 1.5 or less, with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, The mass ratio of the content of the component (B) / the content of the component (A) is 0.0080 or more, preferably 0.0090 or more, more preferably 0.010, from the viewpoint of ensuring inseparability in water and reducing the viscosity. As mentioned above, from the viewpoint of ensuring non-separability in water, it is 0.32 or less, preferably 0.30 or less, more preferably 0.10 or less.
In addition, when the content of the component (A) is 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (B) / The mass ratio of the content of the component (A) is 0.032 or more, preferably 0.036 or more, more preferably 0.040 or more, from the viewpoint of ensuring non-separability in water and reducing the viscosity. From the viewpoint of securing separability, it is 0.32 or less, preferably 0.30 or less, more preferably 0.10 or less.

  In the hydraulic composition of the present invention, the hydraulic powder content is preferably 30 parts by mass or more, more preferably 40 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition from the viewpoint of strength development. Part or more, more preferably 50 parts by weight or more, and from the viewpoint of viscosity reduction, preferably 700 parts by weight or less, more preferably 600 parts by weight or less, more preferably 500 parts by weight or less.

  In the hydraulic composition of the present invention, the content of the dispersant is preferably 0.02 parts by mass or more, more preferably 0.06, with respect to 100 parts by mass of the aqueous phase, from the viewpoint of expressing the fluidity of fresh concrete. From the viewpoint of ensuring retainability, it is preferably 2 parts by mass or less, more preferably 1.4 parts by mass or less, more preferably 1 part by mass or less. is there.

<Method for producing hydraulic composition, pumping method, viscosity reducing agent>
According to the present invention, there is provided a method for producing a hydraulic composition comprising a step of mixing the component (A), the component (B), a hydraulic powder, and water,
(A) A component is 0.75 mass part or more with respect to 100 mass parts of water phases of a hydraulic composition, Preferably it is 0.85 mass part or more, More preferably, it is 1.0 mass part or more. 0 parts by mass or less, preferably 4.0 parts by mass or less, more preferably 2.5 parts by mass or less, more preferably less than 2.5 parts by mass, more preferably 1.5 parts by mass or less. 0.010 parts by mass or more, preferably 0.015 parts by mass or more, more preferably 0.020 parts by mass or more, and 1.5 parts by mass or less, preferably 100 parts by mass of the aqueous phase of the hydraulic composition. Is mixed at a ratio of 1.0 part by mass or less, more preferably 0.50 part by mass or less,
When the component (A) is mixed at a ratio of 0.75 parts by mass or more and less than 2.5 parts by mass, preferably 1.5 or less, with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, (A) The mass ratio of the content of the component and the content of the component (B) is 0.0080 or more, preferably 0.0090 or more, more preferably [(B) component content / (A) component content]. Is 0.010 or more and 0.32 or less, preferably 0.30 or less, more preferably 0.10 or less,
When the component (A) is mixed at a ratio of 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the amount of the component (A) and (B) The mass ratio of the component amounts is 0.032 or more, preferably 0.036 or more, more preferably 0.040 or more, 0.32 or less, in [(B) component amount / (A) component amount]. Preferably it is 0.30 or less, more preferably 0.10 or less,
A method for producing a hydraulic composition is provided. In this method for producing a hydraulic composition, the component (A) and the component (B) are mixed so as to have the predetermined ratio with respect to 100 parts by mass of the aqueous phase of the hydraulic composition. As the preferred embodiment of the component A), the component (B), the hydraulic powder, and the preferred embodiment of the other components, those described in the hydraulic composition can be applied. Moreover, the amount of the component (A) and the amount of the component (B) are the content in terms of the effective component, respectively, and the mass ratio is also based on the content in terms of the effective component.

As a method for producing the hydraulic composition of the present invention,
(A) component is a combination of a cationic surfactant (A1) and an anionic aromatic compound (A2),
A step (1) of obtaining a mixture (1) by mixing an anionic aromatic compound (A2), a component (B), a hydraulic powder and water;
A step (2) of mixing the cationic surfactant (A1) and water to obtain a mixture (2), and a step (3) of mixing the mixture (1) and the mixture (2);
The manufacturing method of the hydraulic composition which has this is mentioned.

  In the method for producing a hydraulic composition of the present invention, it is preferable to mix aggregate in any of the production steps of the hydraulic composition. Moreover, in the manufacturing method of the hydraulic composition of this invention, it is preferable to mix a dispersing agent in either of the manufacturing process of a hydraulic composition. The dispersant is preferably 0.02 parts by mass or more, more preferably 0.06 parts by mass or more, more preferably 0.1 parts by mass or more, and preferably 100 parts by mass of the aqueous phase of the hydraulic composition. Is 2 parts by mass or less, more preferably 1.4 parts by mass or less, more preferably 1 part by mass or less.

  In the method for producing the hydraulic composition of the present invention, all the existing devices can be used for mixing each component. For example, a tilting barrel mixer, a pan-type mixer, a biaxial forced mixer, an omni mixer, a Henschel mixer, V Examples thereof include a mold mixer and a nauter mixer.

  Examples of the method for placing the hydraulic composition according to the present invention include a method having a step of pumping the hydraulic composition with a pump and a step of placing the hydraulic composition pumped with the pump.

  According to the present invention, the hydraulic composition of the present invention is transported to a casting place and then poured into a mold to perform casting. Examples of the transport method include commonly used methods, and are not particularly limited. Examples thereof include a method of pumping with a pump, a method of transporting with a mixer car, and a method of pouring and moving from a mixer to a hopper. From the viewpoint of reducing the viscosity, when placing in a place where it cannot be transported by a mixer truck or a hopper, there is an advantage that it can be pumped even by a low-capacity pump, and a transporting method by pumping with a pump is particularly suitable.

  In the case of pumping the hydraulic composition of the present invention, the hydraulic composition adjusted to the desired physical properties and kneaded can be carried out by pumping to a suitably arranged pipe. A hydraulic composition can also be pumped using pumps, such as a pump car, after conveyance with a mixer truck.

  The type of pump includes a squeeze type and a piston type that are generally used, and is not particularly limited.

  According to the present invention, there is provided a viscosity reducing agent for a hydraulic composition comprising the component (B), wherein the hydraulic composition contains the component (A).

Embodiments of the present invention are shown below.
<1> A hydraulic composition containing the following component (A), the following component (B), a hydraulic powder, and water,
(A) Content of a component is 0.75 mass part or more and 5.0 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition,
(B) Content of a component is 0.010 mass part or more and 1.5 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition,
When the content of the component (A) is 0.75 parts by mass or more and less than 2.5 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (A) and (B) The mass ratio of the component contents is 0.0080 or more and 0.32 or less in [(B) component content / (A) component content],
When the content of the component (A) is 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (A) and (B) The mass ratio of the component content is [(B) component content / (A) component content], which is 0.032 or more and 0.32 or less.
Hydraulic composition.
(A) Component: Cationic surfactant (A1) and salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid, m-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid A combination of an anionic aromatic compound (A2) selected from one or more of acid, p-phenolsulfonic acid, m-xylene-4-sulfonic acid, cumenesulfonic acid, methylsalicylic acid, styrenesulfonic acid, and chlorobenzoic acid, or A quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate Aromatic anionic group (a2) Quaternary salt type cationic compounds (A3)
Component (B): an anionic surfactant excluding (A2) and (a2), an anionic surfactant having a total carbon number of 8 or more and 22 or less, and a hydrocarbon having 8 or more and 22 or less carbon atoms Anionic surfactant selected from anionic surfactants having a group

<2> The hydraulic composition according to <1>, wherein the cationic surfactant (A1) is a quaternary salt type cationic surfactant.

<3> The hydraulic composition according to <1> or <2>, wherein the cationic surfactant (A1) is a cationic surfactant represented by the following general formula (A1-1).

[Wherein R ¹ is an alkyl group or alkenyl group having 10 to 26 carbon atoms, preferably an alkyl group, R ² is an alkyl group having 1 to 22 carbon atoms, or an alkenyl group having 2 to 22 carbon atoms. , R ³ and R ⁴ are each an alkyl group having 1 to 3 carbon atoms. X ⁻ represents an anionic group (excluding an anionic group derived from an anionic aromatic compound). ]

<4> The hydraulic composition according to any one of <1> to <3>, wherein the anionic aromatic compound (A2) is p-toluenesulfonic acid or a salt thereof.

<5> The component (A) is a combination of a cationic surfactant (A1) and an anionic aromatic compound (A2), and the moles of the cationic surfactant (A1) and the anionic aromatic compound (A2) The ratio of cationic surfactant (A1) / anionic aromatic compound (A2) is preferably 0.15 or more, more preferably 0.40 or more, more preferably 0.80 or more, and preferably The hydraulic composition according to any one of <1> to <4>, wherein is 1.5 or less, more preferably 1.2 or less, and more preferably 1.0 or less.

<6> The quaternary cationic group (a1) in which the component (A) has at least one hydrocarbon group having 10 to 26 carbon atoms, paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzene The hydraulic composition according to any one of <1> to <4>, which is a quaternary salt type cationic compound (A3) containing an aromatic anion group (a2) selected from one or more of sulfonate and benzoate .

<7> The quaternary salt type cationic compound (A3) is a compound represented by the following general formula (A3-1) [hereinafter referred to as a cationic compound (A3-1)]. The hydraulic composition according to any one of 6>.

Wherein, R ^ll is 10 or more carbon atoms, 26 an alkyl group, R ^l2 is 1 or more carbon atoms, 22 an alkyl group or the number 2 or 3 hydroxy alkyl group having a carbon, R ^l3 and R ^l4 are each , An alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 2 or 3 carbon atoms, at least one of which is a hydroxyalkyl group having 2 or 3 carbon atoms. X ^1- represents an aromatic anion group selected from one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate, preferably paratoluenesulfonate. ]

<8> The hydraulic composition according to <7>, wherein the cationic compound (A3-1) includes two or more compounds having different carbon numbers of R ^{11 in} the general formula (A3-1).

<9> cationic compound (A3-1) is the general formula (A3-1) compound R ¹¹ is an alkyl group of the compound (A-C ₁₆₎ and 18 carbon atoms is an alkyl group of 16 carbon atoms in the (A-C ₁₈ ), and the molar ratio of the compound (A-C ₁₆ ) to the compound (A-C ₁₈ ) is (A-C ₁₆ ) / (A-C ₁₈ ), preferably 20/80 Or more, more preferably 40/60 or more, more preferably 45/55 or more, and 80/20 or less, preferably 60/40 or less, more preferably 55/45 or less, more preferably 50/50. The hydraulic composition as described in <7> or <8> above, which may be 50/50.

<10> In the total amount of the cationic compound (A3-1), a compound in which R ¹¹ in the general formula (A3-1) is an alkyl group having a carbon number other than an alkyl group having 16 carbon atoms and an alkyl group having 18 carbon atoms. The hydraulic composition according to any one of <7> to <9>, wherein the ratio is preferably 10 mol% or less, more preferably 5 mol% or less, and more preferably 1 mol% or less.

<11> The component (B) is an alkylnaphthalenesulfonic acid having a total carbon number of 8 or more and 22 or less, an alkyl or alkenylbenzenesulfonic acid having an alkyl group or an alkenyl group having a carbon number of 8 or more and 22 or less, a carbon number of 8 or more, An alkyl or alkenyl sulfate having an alkyl group or an alkenyl group of 22 or less, a polyoxyethylene alkyl or alkenyl ether sulfate having an alkyl group or an alkenyl group of 8 or less and 22 or less, a fatty acid having a total carbon number of 8 or more and 22 or less, and The hydraulic composition according to any one of <1> to <10>, which is one or more anionic surfactants selected from the group consisting of these alkali metal salts.

<12> The component (B) is selected from alkyl naphthalene sulfonic acids and alkali metal salts thereof in which the number of carbon atoms of the alkyl group is preferably 2 or more, more preferably 4 or more, and preferably 8 or less, more preferably 6 or less. The hydraulic composition according to any one of <1> to <11>, wherein the hydraulic composition is one or more anionic surfactants.

<13> The hydraulic composition according to any one of <1> to <12>, further containing a dispersant.

<14> The hydraulic composition according to <13>, wherein the dispersant is a dispersant selected from naphthalene-based polymers and polycarboxylic acid-based copolymers, preferably a dispersant selected from naphthalene-based polymers.

<15> A copolymer obtained by polymerizing a monomer (1) represented by the following general formula (1) and a monomer (2) represented by the following general formula (2). The hydraulic composition according to <13> or <14>, which is a polymer [hereinafter referred to as polycarboxylic acid copolymer (I)].

[Where,
R ¹ , R ² : hydrogen atom or methyl group 1: number of 0 or more and 2 or less m: number of 0 or 1 AO: alkyleneoxy group of 2 or more and 4 or less carbon atoms n: average number of added moles of AO, 5 or more, preferably 9 or more, more preferably 20 or more, more preferably 50 or more, more preferably 70 or more, and 150 or less, preferably 130 or less,
R ^{3 represents a} hydrogen atom or an alkyl group having 1 to 4 carbon atoms. ]

[Where,
R ⁴ , R ⁵ , R ⁶ : hydrogen atom, methyl group, or (CH ₂ ) _m1 COOM ²
M ¹ and M ² : each represents a number of hydrogen atom, alkali metal, alkaline earth metal (1/2 atom), ammonium, alkylammonium, or substituted alkylammonium m1: 0 to 2; Note that (CH ₂ ) _m1 COOM ² may form an anhydride with COOM ¹ . ]

<16> The content of the component (A) is 0.75 parts by mass or more, preferably 0.85 parts by mass or more, more preferably 1.0 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition. And 5.0 parts by mass or less, preferably 4.0 parts by mass or less, more preferably 2.5 parts by mass or less, more preferably less than 2.5 parts by mass, more preferably 1.5 parts by mass. The hydraulic composition according to any one of <1> to <15>, which is the following.

<17> The content of the component (B) is 0.010 parts by mass or more, preferably 0.015 parts by mass or more, more preferably 0.020 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition. The hydraulic composition according to any one of <1> to <16>, which is at least 1.5 parts by mass, preferably 1.0 parts by mass or less, more preferably 0.50 parts by mass or less. object.

<18>
When the content of the component (A) is 0.75 parts by mass or more and less than 2.5 parts by mass, preferably 1.5 or less, with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, (B) The mass ratio of the content of the component / the content of the component (A) is 0.0080 or more, preferably 0.0090 or more, more preferably 0.010 or more, 0.32 or less, preferably 0.30 or less, more Preferably it is 0.10 or less,
When the content of the component (A) is 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (B) / (A) The mass ratio of the component content is 0.032 or more, preferably 0.036 or more, more preferably 0.040 or more, 0.32 or less, preferably 0.30 or less, more preferably 0.10 or less. ,
The hydraulic composition according to any one of <1> to <17>.

<19> The content of the hydraulic powder is preferably 30 parts by mass or more, more preferably 40 parts by mass or more, more preferably 50 parts by mass or more with respect to 100 parts by mass of the aqueous phase of the hydraulic composition. And the hydraulic composition in any one of said <1>-<18> which is 700 mass parts or less preferably, More preferably, it is 600 mass parts or less, More preferably, it is 500 mass parts or less.

<20> The content of the dispersant is preferably 0.02 parts by mass or more, more preferably 0.06 parts by mass or more, more preferably 0.1 parts by mass or more, with respect to 100 parts by mass of the aqueous phase. And the hydraulic composition in any one of said <13>-<19>, Preferably it is 2 mass parts or less, More preferably, it is 1.4 mass parts or less, More preferably, it is 1 mass part or less.

<21> A method for producing a hydraulic composition, comprising a step of mixing the following component (A), the following component (B), a hydraulic powder, and water,
(A) A component is 0.75 mass part or more with respect to 100 mass parts of water phases of a hydraulic composition, Preferably it is 0.85 mass part or more, More preferably, it is 1.0 mass part or more. 0 parts by mass or less, preferably 4.0 parts by mass or less, more preferably less than 2.5 parts by mass, more preferably 1.5 parts by mass or less, and (B) component, 100 parts by mass of the aqueous phase of the hydraulic composition To 0.010 parts by mass or more, preferably 0.015 parts by mass or more, more preferably 0.020 parts by mass or more, and 1.5 parts by mass or less, preferably 1.0 parts by mass or less. Is mixed at a ratio of 0.50 parts by mass or less,
When the component (A) is mixed at a ratio of 0.75 parts by mass or more and less than 2.5 parts by mass, preferably 1.5 or less, with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, (A) The mass ratio of the content of the component and the content of the component (B) is 0.0080 or more, preferably 0.0090 or more, more preferably [(B) component content / (A) component content]. Is 0.010 or more and 0.32 or less, preferably 0.30 or less, more preferably 0.10 or less,
When the component (A) is mixed at a ratio of 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the amount of the component (A) and (B) The mass ratio of the component amounts is 0.032 or more, preferably 0.036 or more, more preferably 0.040 or more, 0.32 or less, in [(B) component amount / (A) component amount]. Preferably it is 0.30 or less, more preferably 0.10 or less,
A method for producing a hydraulic composition.
(A) Component: Cationic surfactant (A1) and salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid, m-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid A combination of an anionic aromatic compound (A2) selected from one or more of acid, p-phenolsulfonic acid, m-xylene-4-sulfonic acid, cumenesulfonic acid, methylsalicylic acid, styrenesulfonic acid, and chlorobenzoic acid, or A quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and one or more of paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate Aromatic anionic group (a2) Quaternary salt type cationic compounds (A3)
Component (B): an anionic surfactant excluding (A2) and (a2), an anionic surfactant having a total carbon number of 8 or more and 22 or less, and a hydrocarbon having 8 or more and 22 or less carbon atoms Anionic surfactant selected from anionic surfactants having a group

<22> The component (A) is a combination of a cationic surfactant (A1) and an anionic aromatic compound (A2),
A step (1) of obtaining the mixture (1) by mixing the anionic aromatic compound (A2), the component (B) and the hydraulic powder;
A step (2) of mixing the cationic surfactant (A1) and water to obtain a mixture (2), and a step (3) of mixing the mixture (1) and the mixture (2);
The manufacturing method of the hydraulic composition as described in said <21> which has.

<23> The method for producing a hydraulic composition according to <21> or <22>, wherein the dispersant is mixed in any of the steps for producing the hydraulic composition.

<24> The method for producing a hydraulic composition according to any one of <21> to <23>, wherein the aggregate is mixed in any of the production steps of the hydraulic composition.

<25> A hydraulic composition pumping method, wherein the hydraulic composition according to any one of <1> to <20> is pumped.

<26> Placing the hydraulic composition having a step of pumping the hydraulic composition according to the above <1> to <20> with a pump and a step of placing the hydraulic composition pumped with the pump Method.

<27> A viscosity reducing agent for a hydraulic composition comprising the following component (B), wherein the hydraulic composition contains the following component (A).
(B) component: an anionic surfactant excluding (A2) and (a2) of the following component (A), the anionic surfactant having a total carbon number of 8 or more and 22 or less, and a carbon number of 8 or more Anionic surfactant (A) component selected from anionic surfactants having a hydrocarbon group of 22 or less: cationic surfactant (A1) and salicylic acid, p-toluenesulfonic acid, sulfosalicylic acid, benzoic acid M-sulfobenzoic acid, p-sulfobenzoic acid, 4-sulfophthalic acid, 5-sulfoisophthalic acid, p-phenolsulfonic acid, m-xylene-4-sulfonic acid, cumenesulfonic acid, methylsalicylic acid, styrenesulfonic acid, A combination of an anionic aromatic compound (A2) selected from one or more of chlorobenzoic acid, or a hydrocarbon group having 10 to 26 carbon atoms is small. 4 containing an aromatic anion group (a2) selected from one or more of quaternary cation groups (a1) and paratoluenesulfonate, salicylate, metaxylenesulfonate, cumenesulfonate, styrenesulfonate, benzenesulfonate, and benzoate. Class salt type cationic compound (A3)

<Preparation of mortar>
(1-1) Materials Used / Cement (C): Ordinary Portland cement (manufactured by Taiheiyo Cement Co., Ltd./Sumitomo Osaka Cement Co., Ltd. = 1/1, mass ratio), density 3.16 g / cm ³
-Fine aggregate (S): produced in Jyoyo, mountain sand, FM = 2.67, density 2.56 g / cm ³
・ Water phase (W): tap water, cement dispersant (AD), mixed system of component (A), component (B) ・ Cement dispersant (AD): High-performance water reducing agent Mighty 3000H (Poly) Carboxylic acid dispersant, aqueous solution with effective concentration of 20% by mass)
A1-1: 29% by mass aqueous solution of a mixture of hexadecyltrimethylammonium chloride / octadecyltrimethylammonium chloride in a 50/50 (mass ratio) A2-1: 20% by mass aqueous solution of sodium paratoluenesulfonate A3- 1: An aqueous solution produced in Synthesis Example 1 below and having a dimethylhydroxyethylalkylammonium paratoluenesulfonate (component (A)) concentration of 25% by mass

<Synthesis Example 1>
The flask was charged with 404 g (1.48 mol) of hexadecyldimethylamine and 444 g (1.48 mol) of octadecyldimethylamine and heated to 65 ° C. In the amine mixture, the compound having an alkyl group having 18 carbon atoms was 50 mol%. Further, 893 g of 1,2-propylene glycol, 1871 g of ion-exchanged water, 760 g of a 63.2% by mass aqueous solution of p-toluenesulfonic acid [2.81 mol as p-toluenesulfonic acid, all the above amines (hereinafter also simply referred to as amines) The molar ratio was 0.95] and stirred for 1 hour to make it uniform. The entire amount of the obtained mixed aqueous solution was charged into an autoclave, heated to 85 ° C., stirred, and the system was purged with nitrogen. 157 g (3.56 mol) of ethylene oxide was charged and reacted at 80 to 90 ° C. for 3 hours. Then, it cooled to 65 degreeC, the residual pressure in a reactor was blown out of the system, and 400 torr (53.3 kPa) and deaeration for 15 minutes were performed at 65 degreeC. Furthermore, 40 g of a 63.2% by weight aqueous solution of p-toluenesulfonic acid (0.15 mol as p-toluenesulfonic acid, a molar ratio of 0.05 with respect to the total amine) and a silicone antifoaming agent (manufactured by Toray Dow Corning Co., Ltd.) , 0.12 g of self-emulsifying compound DK Q1-1183) was charged. Further, 476.4 g of itaconic acid, 59.6 g of decanoic acid, and 850.8 g of a 35 mass% aqueous solution of poly (methacryloyloxyethyldimethylethylammonium ethyl sulfate) (weight average molecular weight 120,000) were stirred and homogenized for 0.5 hour. To produce a mixed aqueous solution A3-1. The composition of the mixed aqueous solution A3-1 was as follows: dimethylhydroxyethylalkylammonium paratoluenesulfonate [(A) component] 25.0 mass%, 1,2-propylene glycol 15.0 mass%, itaconic acid 8.0 mass%, decane The acid content was 1.0% by mass, and poly (methacryloyloxyethyldimethylethylammonium ethyl sulfate) was 5.0% by mass.

-Component (B): Anionic surfactants shown in Tables 1 and 2 were used. For the preparation of the mortar, an anionic surfactant was diluted with ion-exchanged water 10 times (mass ratio) and used. In Tables 1 and 2, an anionic surfactant that does not correspond to the component (B) is also described in the column of the component (B) for convenience.

(1-2) Preparation of mortar Kneading of the mortar was performed at a room temperature of 20 ° C. using a mortar mixer (Universal Kneader and Stirrer Model: 5DM-03-V). Cement (C) and fine aggregate (S) were added and kneaded for 10 seconds. Water, cement dispersant (AD) and anionic surfactant [component (B)] were added and stirred for 1 minute. In addition, the addition amount of a cement dispersing agent (AD) employ | adopted the quantity from which mortar flow will be set to target 24 +/- 1cm. In any mortar formulation, since the dispersant became 1.0 parts by mass with respect to 100 parts by mass of the mortar aqueous phase, the mortar flow was performed in each of the examples and comparative examples. . In this mortar flow, the mortar that does not use the component (A) and the component (B) is immediately packed in two layers in the flow cone according to JIS R 5201, and the flow cone is correctly removed upward, and the cone is removed. It was measured after 5 minutes. In the case of using A3-1, A3-1 was then added, and the mixture was further stirred for 1 minute to obtain a use mortar. Moreover, when using A1-1 and A2-1, it is the same method as the above except that only A2-1 is added at the time of addition of the dispersing agent (AD), stirred for 1 minute, and then A1-1 is added. A mortar was obtained. Tables 1 and 2 show the specific amounts of each component. In the table, the mass of the aqueous phase (W) was expressed as a mass including water, A1-1, A2-1, A3-1, (B) component, and cement dispersant (AD).

<Evaluation>
(2-1) Evaluation of underwater inseparability Underwater inseparability refers to the method for testing the degree of underwater inseparability of underwater inseparable concrete under the specifications for underwater inseparable admixture quality standards for concrete (JSCE-D 104-2007). The suspension was evaluated by measuring the turbidity of the suspension by the following method.
200 ml of ion-exchanged water was weighed into a 300 ml beaker, and 80 g of mortar after kneading was weighed into another 300 ml beaker. 80 g of mortar was poured into 200 ml of ion-exchanged water in 10 minutes, about 8 g at a time. After leaving it to stand for 3 minutes, 100 ml of the supernatant was collected, and the turbidity was measured using a lacom tester turbidimeter TN-100 manufactured by ASONE Co., Ltd. The results are shown in Tables 1 and 2.
The smaller the turbidity, the better the inseparability in water, and it is determined as follows, and a, b, and c are acceptable levels.
a: Turbidity is 100 or less b: Turbidity is more than 100, 150 or less c: Turbidity is more than 150, 200 or less d: Turbidity is more than 200, 333 or less e: Turbidity is more than 333

(2-2) Pump pumpability Pump pumpability is affected by the viscosity of the mortar. In this example, the pumpability was evaluated by the mortar flow time.
The kneaded mortar is immediately packed in two layers in a flow cone based on JIS R 5201, the flow cone is removed correctly upward, and the time for the average flow length to reach 20 cm (hereinafter referred to as mortar flow time) It was measured and used as an index of pumpability. The results are shown in Tables 1 and 2.
The smaller the mortar flow time, the better the pumpability, and it is determined as follows, and a and b are acceptable levels.
a: Mortar flow time is 30 seconds or less b: Mortar flow time is more than 30 seconds, 45 seconds or less c: Mortar flow time is more than 45 seconds

  In Tables 1 and 2, the dispersant in the mortar blending, the blending amount (g) of the component (A) indicates the blending amount (g) as an aqueous solution. In Tables 1 and 2, the mass ratio of (B) / (A) in the mortar blending indicates a mass ratio based on the blended amount in terms of effective component. Moreover, the mass part with respect to 100 mass parts of water phase of a dispersing agent, (A) component, and (B) component in Tables 1 and 2 is a mass part of effective part conversion, respectively.

Claims (9)

A hydraulic composition containing the following component (A), the following component (B), a hydraulic powder, and water,
(A) Content of a component is 0.75 mass part or more and 5.0 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition,
(B) Content of a component is 0.010 mass part or more and 1.5 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition,
When the content of the component (A) is 0.75 parts by mass or more and less than 2.5 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (A) and (B) The mass ratio of the component contents is 0.0080 or more and 0.32 or less in [(B) component content / (A) component content],
When the content of the component (A) is 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of the component (A) and (B) The mass ratio of the component content is [(B) component content / (A) component content], which is 0.032 or more and 0.32 or less.
Hydraulic composition.
Component (A): a combination of a cationic surfactant (A1)及beauty A anion aromatic compound (A2), the cationic surfactant (A1) is in quaternary salt type cationic surfactant A combination in which the anionic aromatic compound (A2) is p-toluenesulfonic acid or a salt thereof, or a quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and an aromatic quaternary salt type cationic compound containing paratoluene Natick bets a family anionic groups (a2) (A3)
Component (B): An anionic surfactant excluding (A2) and (a2), having a total carbon number of 8 or more and 22 or less, an alkylnaphthalene sulfonic acid, a carbon number of 8 or more and 22 or less, an alkyl group or an alkenyl group Alkyl or alkenylbenzenesulfonic acid having an alkyl group, alkyl having 8 to 22 carbon atoms or alkyl or alkenyl sulfate having an alkenyl group, polyoxyethylene alkyl or alkenyl having an alkyl group or alkenyl group having 8 to 22 carbon atoms One or more anionic surfactants selected from the group consisting of ether sulfuric acid and alkali metal salts thereof The content of the hydraulic powder, relative to the aqueous phase 100 parts by weight of the hydraulic composition, 30 parts by mass or more, according to claim 1 Symbol placement of the hydraulic composition is not more than 700 parts by mass. Furthermore, the hydraulic composition of Claim 1 or 2 containing a dispersing agent. A method for producing a hydraulic composition, comprising a step of mixing the following component (A), the following component (B), a hydraulic powder, and water,
(A) A component is 0.75 mass part or more and 5.0 mass parts or less with respect to 100 mass parts of water phases of a hydraulic composition, (B) A component is 100 mass parts of water phases of a hydraulic composition. Is mixed at a ratio of 0.010 parts by mass or more and 1.5 parts by mass or less,
When (A) component is mixed at a ratio of 0.75 parts by mass or more and less than 2.5 parts by mass with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the content of (A) component and (B The mass ratio of the content of the component is 0.0080 or more and 0.32 or less in [(B) component content / (A) component content]
When the component (A) is mixed at a ratio of 2.5 parts by mass or more and 5.0 parts by mass or less with respect to 100 parts by mass of the aqueous phase of the hydraulic composition, the amount of the component (A) and (B) The mass ratio of the component amounts is 0.032 or more and 0.32 or less in [(B) component amount / (A) component amount].
A method for producing a hydraulic composition.
Component (A): a combination of a cationic surfactant (A1)及beauty A anion aromatic compound (A2), the cationic surfactant (A1) is in quaternary salt type cationic surfactant A combination in which the anionic aromatic compound (A2) is p-toluenesulfonic acid or a salt thereof, or a quaternary cationic group (a1) having at least one hydrocarbon group having 10 to 26 carbon atoms and an aromatic quaternary salt type cationic compound containing paratoluene Natick bets a family anionic groups (a2) (A3)
Component (B): An anionic surfactant excluding (A2) and (a2), having a total carbon number of 8 or more and 22 or less, an alkylnaphthalene sulfonic acid, a carbon number of 8 or more and 22 or less, an alkyl group or an alkenyl group Alkyl or alkenylbenzenesulfonic acid having an alkyl group, alkyl having 8 to 22 carbon atoms or alkyl or alkenyl sulfate having an alkenyl group, polyoxyethylene alkyl or alkenyl having an alkyl group or alkenyl group having 8 to 22 carbon atoms One or more anionic surfactants selected from the group consisting of ether sulfuric acid and alkali metal salts thereof (A) component is a combination of the cationic surfactant (A1) and the anionic aromatic compound (A2),
A step (1) of obtaining a mixture (1) by mixing an anionic aromatic compound (A2), a component (B), a hydraulic powder and water;
A step (2) of mixing the cationic surfactant (A1) and water to obtain a mixture (2), and a step (3) of mixing the mixture (1) and the mixture (2);
The manufacturing method of the hydraulic composition of Claim 4 which has these. The manufacturing method of the hydraulic composition of Claim 4 or 5 which mixes a dispersing agent in either of the manufacturing process of a hydraulic composition. The hydraulic composition pumping method of pumping the hydraulic composition according to any one of claims 1 to 3 . A method for placing a hydraulic composition, comprising the steps of pumping the hydraulic composition according to any one of claims 1 to 3 and placing the hydraulic composition pumped by the pump. A viscosity reducing agent for a hydraulic composition comprising the following component (B), wherein the hydraulic composition contains the following component (A).
(B) component: an anionic surfactant excluding (A2) and (a2) of the following component (A), a total carbon number of 8 or more and 22 or less alkyl naphthalenesulfonic acid, carbon number of 8 or more and 22 or less An alkyl or alkenylbenzenesulfonic acid having an alkyl group or an alkenyl group, an alkyl or alkenyl sulfate having an alkyl group or alkenyl group having 8 to 22 carbon atoms, an alkyl or alkenyl group having 8 to 22 carbon atoms polyoxyethylene alkyl or alkenyl ether sulfate and one or more anionic surfactant selected from the group consisting of alkali metal salts of component (a): a cationic surfactant (A1)及beauty a anion aromatic compound (A2) a combination of the cationic surfactant (A1) is a quaternary salt type cationic surfactants A sexual agent, the anionic aromatic compound (A2) is p- toluenesulfonic acid, or a combination a salt thereof, or a C 10 or more, 26 or less of the hydrocarbon group having at least one quaternary cationic group (a1 ) and aromatic anionic groups (a2) paratoluene Natick preparative and quaternary salt type cationic compounds containing a (A3)