TWI748111B - Additive for hydraulic composition - Google Patents

Abstract

Provided is an additive for a hydraulic composition, which is composed of: a first component containing at least one fatty alcohol phosphate, and an organic amine salt of fatty alcohol phosphate neutralized with a second component containing an organic amine.

Description

Additives for hydraulic compositions

The present invention relates to an additive for hydraulic composition. In particular, it relates to an additive for hydraulic composition, which has high stability as an aqueous solution, and has excellent compatibility with existing additives for hydraulic composition, and can improve the hardened concrete body obtained from the hydraulic composition. Freeze-thaw resistance.

In recent years, hardened bodies obtained from hydraulic compositions, such as hardened concrete bodies, are required to have high durability. It is known that "freeze-thaw resistance" is one of the indicators showing this high durability. Therefore, for the purpose of improving the freeze-thaw resistance of the hardened concrete body, AE concrete formed by mixing fine air bubbles in the hardened concrete body was produced. However, depending on various conditions such as the various materials used in the hardened concrete body or the mixing ratio of various materials, even AE concrete may not have sufficient freeze-thaw resistance. Therefore, various adjustments such as an increase in air volume or a modification of the formula are carried out in accordance with the manufacturing conditions.

For example, in the process of manufacturing AE concrete, additives are used to adjust the amount of air. At this time, depending on the type of additives used, the freeze-thaw resistance of the resulting hardened concrete body varies individually. Here, as an additive with excellent freeze-thaw resistance, a method of using a phosphate-based additive as an AE regulator has been proposed (refer to Patent Documents 1 to 3).

Prior art literature

Patent literature

Patent Document 1: Japanese Invention Publication No. 61-048480

Patent Document 2: Japanese Invention Publication No. 2010-100478

Patent Document 3: Japanese Invention Publication No. 2010-285291

[Summary of the invention]

However, the phosphate ester additives shown in Patent Documents 1 to 3 have poor compatibility with water and existing additives for hydraulic compositions. As a result, problems such as insufficient freeze-thaw resistance of the hardened concrete body still occur. .

In view of the above-mentioned facts, the additive for hydraulic composition of the present invention has high stability as an aqueous solution, and has excellent compatibility with existing additives for hydraulic composition, and the resulting hardened concrete body can express Additives for hydraulic compositions with good freeze-thaw resistance values are the subject.

In order to solve the above-mentioned problems, the inventors of the present invention, after intensive research, found that it is particularly preferable to be an additive for a hydraulic composition containing a specific fatty alcohol phosphate and a specific organic amine.

That is to say, the present invention relates to an additive for hydraulic composition, which is composed of: at least one first component of the fatty alcohol phosphate represented by the following chemical formula 1, chemical formula 2 and chemical formula 3; and , To include an organic amine salt of fatty alcohol phosphate neutralized by the second component of the organic amine shown in the following chemical formula 4.

Chemical formula 1

However, in the above chemical formulas 1 to 3, R ¹ to R ⁵ represent the residues of aliphatic alcohols with carbon numbers of 6 to 24 after removing the hydroxyl group or fats with carbon numbers of 6 to 24 per mole Group alcohol, after adding a total of 1-10 moles of ethylene oxide and/or propylene oxide, the residue after removing the hydroxyl group; n represents an integer of 2 or 3; M ¹ ~M ⁴ represent hydrogen , Alkali metals and alkaline earth metals, and ^{at least one of M 1} to M ⁴ means those containing alkali metals or alkaline earth metals.

Chemical formula 4

However, in the above chemical formula 4, R ⁶ represents an alkyl group with a carbon number of 1 to 30 and/or an alkenyl group with a carbon number of 2 to 30, AO and BO each represent an oxyalkylene group, and a and b are 0 or more It is an integer, and satisfies the condition of a+b≦100.

Here, as mentioned above, in the above chemical formula 1, R ¹ represents the residue of an aliphatic alcohol with a carbon number of 6 to 24 after removing the hydroxyl group or a fat with a carbon number of 6 to 24 per mole Group alcohol, after adding a total of 1-10 moles of ethylene oxide and/or propylene oxide, the residue after removing the hydroxyl group.

Examples of such R ¹ include: 1) hexanol, heptanol, octanol, 2-ethane-hexanol, nonanol, decanol, 2-propan-heptanol, undecyl alcohol, dodecanol, 2 -Butyl-octanol, tridecanol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, eicosanol, behenyl alcohol, tetracosanol, etc. The carbon number is 6~24 The residue of the aliphatic alcohol after removing the hydroxyl group; 2) hexanol, heptanol, octanol, 2-ethane-hexanol, nonanol, decanol, 2-propanol, undecyl alcohol, decyl alcohol Glycol, 2-butanol, tridecanol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, eicosanol, behenyl alcohol, tetracosanol, etc. Mole of aliphatic alcohols with carbon numbers of 6-24, add a total of 1-10 moles of ethylene oxide and/or propylene oxide, and then remove the residues of the hydroxyl group. Among them, as R ¹ , octanol, 2-ethane-hexanol, nonanol, dodecanol, 2-but-octanol, tridecanol, tetradecanol, cetyl alcohol, stearyl alcohol, isotene The residue of aliphatic alcohols with carbon number of 8-22 such as octanol and oleyl alcohol after removing the hydroxyl group.

Examples of the fatty alcohol phosphate ester represented by the chemical formula 1 include: monohexyl phosphate, monooctyl phosphate, mono-2-ethyl-hexyl phosphate, monononyl phosphate, monodecyl phosphate, monododecyl phosphate, mono-2- -Butyl-octyl phosphate, monotridecyl phosphate, monotetradecyl phosphate, monohexadecyl phosphate, monooctadecyl phosphate, monoisooctadecyl phosphate, monooleyl phosphate, etc.

In Chemical Formula 2, R ² and R ³ are the same as those described for ^{R 1} in Chemical Formula 1. Therefore, detailed description is omitted below.

As the fatty alcohol phosphate represented by the chemical formula 2, for example, octyl diphosphate, di-2-ethyl-hexyl phosphate, dinonyl phosphate, didecyl phosphate, behenyl phosphate, di-2-butan-phosphate Octyl ester, trichotris phosphoric acid ester, tetracosyl phosphate, hexadecanoic acid ester, octadecanoic acid ester, diisooctadecyl phosphate, di-oil phosphate, didecyl oil phosphate, etc.

In Chemical Formula 3, R ⁴ and R ⁵ are the same as those described for ^{R 1} in Chemical Formula 1. Therefore, detailed description is omitted below. In addition, n is an integer of 2 or 3.

Examples of fatty alcohol phosphate esters represented by Chemical Formula 3 include: monooctyl pyrophosphate, dioctyl pyrophosphate, mono-2-ethylhexyl pyrophosphate, di-2-ethyl-hexyl pyrophosphate, monononyl Pyrophosphate, dinonyl pyrophosphate, monododecyl pyrophosphate, behenyl pyrophosphate, monooleyl pyrophosphate, dioleyl pyrophosphate, dodecyl oleyl Pyrophosphate, dioleyl polyphosphate, etc.

In Chemical Formula 4, R ⁶ is an alkyl group with a carbon number of 1-30 and/or an alkenyl group with a carbon number of 2-30. Examples of R ⁶ in general include: methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, Fourteen bases, fifteen bases, sixteen bases, seventeen bases, eighteen bases, nineteen bases, 20 bases, 21 bases, 22 bases, 23 bases, 24 bases, eighteen bases Carbalkenyl, octadecadienyl, etc. R ⁶ may also be a group obtained by removing amino groups from amines such as tallow amine, hydrogenated tallow amine, coconut oil amine, palm oleyl amine, or soybean oleyl amine.

R ⁶ can also be composed of either a straight chain or a branched chain. The carbon number of R ⁶ is 1-30, but the best is 6-22. If ^{the carbon number of R 6} exceeds 30, the hydrophobicity of the organic amine will increase.

In the chemical formula 4, AO and BO are oxyalkylene groups with a carbon number of 2 to 4, but preferably oxyethylene or oxypropylene groups, and particularly preferably ethylene oxide. a and b represent the number of additional moles of oxyalkylene groups.

In Chemical Formula 4, a and b are integers greater than 0, and are integers satisfying a+b≦100. It is better to satisfy an integer of 1≦a+b≦50, more preferably to satisfy an integer of 2≦a+b≦50, particularly preferably to satisfy an integer of 2≦a+b≦35, and most preferably to satisfy 3≦a+ b≦35 is an integer.

In addition, in the fatty alcohol phosphate ester of the first component, R ¹ to R ⁵ in the above chemical formulas 1 to 3 may also be alkyl and/or alkenyl groups with 8 to 22 carbon atoms.

In addition, in the organic amine of the second component, R ⁶ in the above chemical formula 4 may also be an alkyl group and/or alkenyl group with a carbon number of 6-22.

In addition, the acid value of the fatty alcohol phosphate ester of the first component is not particularly limited, but for example, it can be in the range of 0.1 to 500 mg/g. Among them, it is preferably in the range of 40 to 400 mg/g, and particularly preferably in the range of 100 to 250 mg/g.

Here, the acid value is, for example, a mixture of isopropanol and xylene/isopropanol (volume ratio 1/1), a reagent dissolved in a solvent such as water, and 0.1N potassium hydroxide and ethylene glycol/isopropyl The mixed solution of alcohol (volume ratio 1/1), potentiometric titration with a potentiometric titrator, measure the end point (ml) of the titration, and the amount of potassium hydroxide required to neutralize the acidic base of the phosphate contained in 1g of the reagent The value calculated by the following formula 1.

Formula 1 Acid value (KOH mg/g)=(A1×f1×5.61)/W1

In the above formula 1, A1: Titration (ml)

f1: Titer of 0.1N potassium hydroxide solution

W1: reagent volume (g)

In addition, the amine value of the organic amine of the second component is not particularly limited, but, for example, it can be in the range of 20 to 200 mg/g. Among them, it is preferably in the range of 30 to 150 mg/g, and more preferably in the range of 50 to 100 mg/g.

The amine value is, for example, a mixture of isopropanol, xylene/isopropanol (volume ratio 1/1), a reagent dissolved in a solvent such as water, and 0.1N hydrochloric acid and ethylene glycol/isopropanol (volume ratio 1 For the mixed solution of /1), perform potentiometric titration with a potentiometric titrator, and measure the end point (ml) of the titration. The hydrochloric acid and the equivalent amount of potassium hydroxide required for neutralization of the amine group of the organic amine contained in 1g of the reagent pass through in mg. The value calculated by the following formula 2.

Formula 2 Amine value (KOH mg/g)=(A2×f2×5.61)/W2

In the above formula 2, A2: Titration (ml)

f2: the titer of 0.1N potassium hydroxide solution

W2: reagent volume (g)

In addition, the value of dividing the amine value of the second component by the acid value of the first component and multiplying by 100 (hereinafter referred to as "amine value/acid value×100") can be in the range of 10 to 300. Among them, it is preferably in the range of 30 to 250, and more preferably in the range of 50 to 150.

The organic amine salt of the fatty alcohol phosphate ester constituting the additive for the hydraulic composition of the present invention is an aliphatic alcohol with a carbon number of 6 to 24 or a fatty alcohol with a carbon number of 6 to 24 per mole. The ratio of 1~10 moles of ethylene oxide and/or propylene oxide, plus for example, dioxin pentoxide is reacted to obtain fatty alcohol phosphate ester, and then the fatty alcohol phosphate ester is used with alkaline components such as potassium hydroxide and The organic amine shown in chemical formula 4 is neutralized. The fatty alcohol phosphate ester generally forms a mixture of the fatty alcohol phosphate ester shown in Chemical Formula 1 and the fatty alcohol phosphate ester shown in Chemical Formula 2, but in some cases, a mixture containing the fatty alcohol phosphate ester shown in Chemical Formula 3 is formed.

The additive for hydraulic composition of the present invention is used in civil engineering, construction, secondary products, etc., and is a hydraulic composition of a hydraulic binder. Examples of such hydraulic compositions include paste, mortar, concrete, and the like.

The additive for hydraulic composition of the present invention can be used in combination with existing additives for hydraulic composition. Examples of additives for such hydraulic compositions include AE water reducing agents, high-performance AE water reducing agents, AE agents as air content regulators, defoamers, shrinkage inhibitors, tackifiers, hardening accelerators, and the like.

As the hydraulic binder of the hydraulic composition, which is used to prepare the additive for the hydraulic composition of the present invention, various types such as ordinary portland cement, early-strength portland cement, and moderate thermal cement can be cited. Blue cement; and various mixed cements such as blast furnace cement, fly ash cement, and silica fume cement. In addition, various mixed materials such as blast furnace ballast powder, fly ash, silica fume, etc., can be combined with the aforementioned cements.

In addition, if pellets are used in the process of preparing the hydraulic composition, the pellets can include fine pellets and coarse pellets. As the fine aggregate, river sand, mountain sand, sea sand, crushed sand, and ballast fine aggregates can be cited; as the coarse aggregate, river gravel, crushed stone, lightweight aggregates, and the like can be cited.

In addition, the water-to-gel ratio of the hydraulic composition is usually 70% or less, preferably 20-60%, particularly preferably 30-55%, particularly preferably 35-55%. Generally speaking, the larger the water-binder ratio, the lower the freeze-thaw resistance of the hydraulic composition. Once it is higher than 70%, the freeze-thaw resistance cannot be obtained in most cases.

With the present invention, the following effects can be obtained: the stability of itself as an aqueous solution is high, and the compatibility with existing additives for hydraulic compositions is also high, so that the resulting hardened concrete body has excellent freeze-thaw resistance.

Hereinafter, embodiments are listed in order to more specifically describe the structure and effects of the present invention, but the present invention is not limited to these embodiments. In addition, in the following examples and comparative examples, unless otherwise stated, "parts" means parts by mass, and "%" means mass%.

1. Synthesis of polycarboxylic acid type water reducing agent

Add 244.3 parts of ion-exchanged water and 368.3 parts of poly(3-methyl-3-butenyl) ether of poly(53 mol on average) ethylene glycol mono(3-methyl-3-butenyl) ether into the reaction vessel, and add the gas in the reaction vessel to After the nitrogen is replaced, stir and slowly warm up. The temperature of the reaction system was maintained at 70°C in a warm water bath, and 23.5 parts of 3.5% hydrogen peroxide aqueous solution was dropped in 3 hours. At the same time, 117.5 parts of ion exchange water and 23.5 parts of acrylic acid were dissolved in 3 hours. At the same time, 15.0 parts of ion-exchanged water was dropped over 4 hours, and an aqueous solution of 1.9 g of L-ascorbic acid and 1.9 g of 3-mercaptopropionic acid was dissolved and reacted. Finally, 45.5 parts of 30% sodium hydroxide aqueous solution and ion exchange water are added to the obtained copolymer to obtain a 40% water-soluble vinyl copolymer aqueous solution (water reducing agent B liquid). When the water-soluble vinyl copolymer was analyzed, its mass average molecular weight was measured to be 45,000. In addition, the weight average molecular weight of the copolymer is measured by gel permeation chromatography.

2. Measurement conditions

Device: Shodex GPC-101 (manufactured by Showa Denko)

Column: OHpak SB-G+SB-806M HQ+SB-806M HQ (manufactured by Showa Denko)

Detector: Differential Refractometer (RI)

Eluent: 50MM sodium nitrate aqueous solution

Flow rate: 0.7ml/min

Reagent concentration: eluent solution with a reagent concentration of 0.5% by mass

Standard material: PEG/PEO (manufactured by Agilent Technologies)

3. Example 1 (AE-1) (Preparation of organic amine salt of fatty alcohol phosphate, etc.)

Add 41.6 parts of 1-octanol into the reaction vessel, after 2 hours of dehydration treatment under the conditions of 120℃ and 0.05MPa, make it return to normal atmospheric pressure, and put in the pentoxide in 0.5 hours under the environment of 60±5℃ Burn 18.1 parts and continue to stir. After aging for 3 hours in an environment of 80°C, 1.2 parts of ion-exchanged water was added and aging for another 0.5 hour. Next, 18.8 parts of a 48% potassium hydroxide aqueous solution was dropped in a 50° C. environment to perform a neutralization reaction. The acid value measured by potentiometric titration was 222 mg/g. Next, 182.4 parts by mass of dodecylamine-polyoxyethylene 20 mol adduct (amine value 55mg/g) was added dropwise under a 50°C environment to neutralize, and ion-exchanged water was added to prepare a 25% hydraulic composition. Additive aqueous solution (Example (AE-1)).

4. Examples 2-17 ((AE-2~AE-17) and Comparative Example 1 (RAE-1), Comparative Example 2 (RAE-2)

As in Example 1 above, 25% hydraulic combinations of Examples 2 to 17 ((AE-2) to (AE-17)) and Comparative Example 1 (RAE-1) and Comparative Example 2 (RAE-2) were prepared Material additive aqueous solution.

5. Comparative Example 3 (RAE-3)

Add 135.8 parts by mass of 1-octanol into the reaction vessel, and after dehydration treatment at 120°C and 0.05MPa for 2 hours, make it return to normal atmospheric pressure. At 60±5°C, add pentoxide in 0.5 hours Dilin 59.1 parts and continue to stir. After aging for 3 hours in an environment of 80°C, 4.1 parts of ion-exchange water was added and aging for another 0.5 hour. Next, 153.4 parts of 48% potassium hydroxide aqueous solution was dropped in a 50°C environment to neutralize the reaction, and ion-exchanged water was added to prepare a 25% aqueous additive solution for hydraulic composition (Comparative Example 3 (RAE-3)).

6. Comparative example 4 (RAE-4), comparative example (RAE-5)

As in Comparative Example 3 (RAE-3), 25% aqueous solutions of Comparative Example 4 (RAE-4) and Comparative Example 5 (RAE-5) were prepared, respectively.

7. Comparative Example 6 (RAE-6)

After adding 701.7 parts of ion-exchanged water and 76.3 parts of 48% potassium hydroxide aqueous solution into the reaction vessel, it was heated to 90°C. At this time, 222.0 parts of rosin (manufactured by Wako Pure Chemical Industries, Ltd.) was added and stirred at the same time. After the addition, it was aged for 1 hour to prepare a 25% rosin potassium salt aqueous solution (Rosin K).

The contents of the organic amine salts of fatty alcohol phosphate esters prepared in the above items 1.~6. are summarized as shown in Table 1 below. In addition, the P nuclear integral ratio is based on the condition that excess KOH is added to the organic amine salt of fatty alcohol phosphate to make the pH value above 12, and then ³¹ P-NMR (manufactured by VALIAN company, trade name is MERCURY plus NMR Spectrometor) System, 300MHz) The measured value is calculated by the following formula 3 to formula 5. The solvent is a mixed solvent of heavy water/tetrahydrofuran=8/2 (volume ratio).

Here, in the above formulas 3 to 5, the tables of P1, P2, and P3 are as follows: "P1: P nuclear NMR of organic amine salts belonging to fatty alcohol phosphate esters shown in Chemical formula 1. "Integral value", "P2: P-nuclear NMR integrated value attributable to the organic amine salt of the fatty alcohol phosphate shown in Chemical Formula 2" and "P2: Organic amine attributable to the fatty alcohol phosphate of Chemical Formula 3 P nuclear NMR integral value of salt, etc.".

In addition, in the above table 1, the tables of Hua1, Hua2, and Hua3 are as follows: "Chem1: P-core points ratio calculated by self-calculation formula 3", "Chemistry 2: P-core points calculated by self-calculation formula 4" "Ratio" and "Conversion 3: Self-calculating P core point ratio calculated by formula 5".

In addition, in the first component (fatty alcohol phosphate) in Table 1, the C8, C9, C12, and C18 tables are as follows: "C8: Octanol", "C9: Nonanol", "C12: Dodecanol", "C18: oleyl alcohol (only, C18 of AE-13 and AE-15 is oleyl alcohol-polyoxyethylene 4 mol adduct)"; ^{among R 6} of the second component (organic amine), C12, C18, C8 The tables are as follows: "C12: Dodecyl", "C18: Stearyl" and "C8: Octyl"; other K, Na, EO tables are as follows: "K: Potassium Salt", "Na: Sodium Salt" And "EO: Ethylene Oxide".

10. Stability of the aqueous solution of additives for hydraulic compositions and compatibility with water reducing agents (existing additives for hydraulic compositions)

10-1. Stability of aqueous solution of additives for hydraulic composition

After shaking and mixing the 25% hydraulic composition prepared in Table 1 with the additive aqueous solution, pour it into a transparent container and let it stand for one week at 5°C, 20°C, 40°C, etc., visually confirm the solubility, and use The evaluation is performed based on the evaluation criteria described later. The results are summarized as shown in Table 2 below.

10-2. Compatibility of additives for hydraulic compositions with aqueous solutions and water reducing agents

Respectively in the polycarboxylic acid high-performance AE water reducing agent "CHUPOL HP-11 (manufactured by TAKEMOTO OIL & FAT CO., LTD-water reducing agent A liquid)", water reducing agent B liquid, a composite of denatured lignin sulfonic acid and polycarboxylic acid compounds The sulfonic acid water-reducing agent "CHUPOL EX60 (manufactured by TAKEMOTO OIL & FAT CO., LTD-Water-reducing agent C liquid)" is added with 25% aqueous solution of additives for hydraulic composition to make it 1% by mass, and in an environment of 20°C Let it stand for one week, visually confirm the solubility, and perform evaluation using the evaluation criteria mentioned later. The results are summarized as shown in Table 2 below.

10-3. Evaluation criteria for stability and compatibility

A: Dissolved after 1 week

B: Dissolved after 1 day

C: Separated within 1 day

11. Modulation and evaluation of concrete composition

11-1. Modulation of AE concrete composition

Under the mixing conditions described in Table 3, in a 50L compulsory disc mixer, mix the specified amount of ordinary portland cement (made by Pacific Cement, Ufen Mitsubishi Cement, Sumitomo Osaka Cement, etc.) Quantity mixture, density=3.16g/cm ³ ), land sand (produced in Oigawa water system, density=2.58g/cm ³ ), crushed stone (made in Okazaki gravel, density=2.66g/cm ³ ), water reducing agent A liquid or Water reducing agent B liquid, 25% aqueous solution of additives for hydraulic composition, 0.0005% cement quality defoamer "AFK-2 (manufactured by TAKEMOTO OIL & FAT CO., LTD)", stirring water (tap water) are put together and stirred In 90 seconds, it is prepared into an AE concrete composition with an assumed slump of 18±1cm and an assumed air content of 4.5±0.5%. The freeze-thaw resistance is obtained as an indicator of the slump, air content and freeze-thaw resistance. After the sex index (300 cycles) (details are described later), the results are summarized as shown in Table 4. In addition, in the case of using the water reducing agent C liquid, the same test was carried out according to the mixing conditions shown in Table 5. The results are summarized as shown in Table 6.

11-2. Measurement of air content, slump and freeze-thaw resistance index.

Air content (volume%): Measure the AE concrete composition shortly after mixing according to the JIS A 1128 standard.

Slump flow (cm): While measuring the air content, it is measured according to the JIS A 1101 standard.

Freeze-thaw resistance index: For the AE concrete composition hardened body prepared by using 25% hydraulic composition with additive aqueous solution in each case, use the value measured in accordance with JIS A 1148 standard, and then use ASTM-C-666-75 The durability index calculates the freeze-thaw resistance index value. The maximum value of this value is 100, and the closer it is to 100, the better the freeze-thaw resistance is exhibited.

Here, in Table 4 and Table 6, the amount of water reducing agent and the amount of 25% aqueous additive solution for hydraulic composition are expressed as a percentage relative to cement (C).

11-3. Evaluation criteria for freeze-thaw resistance index

The evaluation of freeze-thaw resistance is carried out based on the evaluation criteria described later. In other words, those with a freeze-thaw resistance index above 80% are rated as "A"; on the other hand, those with a freeze-thaw resistance index less than 80% are rated as "B".

As shown in the results shown in Table 2, Table 4 and Table 6, it is obvious that the additive for hydraulic composition of the present invention has excellent stability and is comparable to existing additives for hydraulic composition. Solubility) is good, and it is confirmed that a hardened concrete body with excellent freeze-thaw resistance is obtained.

Claims (8)

An additive for a hydraulic composition is composed of the following components: including at least one first component of the fatty alcohol phosphate ester represented by the following chemical formula 1, chemical formula 2 and chemical formula 3; The organic amine salt of fatty alcohol phosphate neutralized by the second component of the organic amine shown,

Among them, R ¹ ~ R ⁵ represent the residues of aliphatic alcohols with carbon numbers of 6 to 24 after removing the hydroxyl group, or aliphatic alcohols with carbon numbers of 6 to 24 per mole, plus 1 to 10 in total After the molar ratio of ethylene oxide and/or propylene oxide, the residue after removing the hydroxyl group; n represents an integer of 2 or 3; M ¹ ~M ⁴ represent hydrogen, alkali metals and alkaline earth metals, And, ^{at least one of M 1} to M ⁴ represents an alkali metal or alkaline earth metal containing, and, wherein R ⁶ represents an alkyl group with a carbon number of 1 to 30 and/or an alkenyl group with a carbon number of 2 to 30; AO, Each BO represents an oxyalkylene group; a and b are integers greater than 0, and satisfy the condition of a+b≦100. The additive for hydraulic composition as described in item 1 of the scope of patent application, wherein among the fatty alcohol phosphate ester of the first component, the R ¹ ~R ⁵ in the above chemical formula 1 to 3 are carbon numbers of 8-22 Alkyl or alkenyl with 8-22 carbons. The additive for hydraulic composition described in item 2 of the scope of patent application, wherein among the organic amine of the second component, R ⁶ in the above chemical formula 4 is an alkyl and/or alkenyl group with carbon number of 6-22. The additive for hydraulic composition described in item 1 of the scope of patent application, wherein among the organic amine of the second component, R ⁶ in the above chemical formula 4 is an alkyl and/or alkenyl group with carbon number of 6-22. The additive for hydraulic composition as described in item 1 of the scope of patent application, wherein the acid value of the first component is in the range of 0.1 to 500 mg/g; the amine value of the second component is in the range of 20 to 200 mg/g The value of dividing the amine value by the acid value and multiplying by 100 is within the range of 10~300. The additive for hydraulic composition as described in item 5 of the scope of patent application, wherein the amine valence is in the range of 30-150 mg/g. For the additive for hydraulic composition described in item 6 of the scope of patent application, the value of dividing the amine value by the acid value and multiplying by 100 is within the range of 50 to 150. For the additive for hydraulic composition described in item 5 of the scope of patent application, the value of dividing the amine value by the acid value and multiplying by 100 is in the range of 50 to 150.