CN106587706B - A kind of self-compaction high workability concrete polycarboxylate superplasticizer composition - Google Patents

Abstract

The invention discloses a kind of self-compaction high workability concrete polycarboxylate superplasticizer compositions.The water-reducing agent composition gross mass is 100 parts, is made of the raw material by following mass parts：Middle acid ether is put 0.02 0.1 parts of type cement-based gelling material plastic expansion agent and is compounded than 35 50 parts of high-adaptability polycarboxylate superplasticizer mother liquor, low sour ether than low 20 35 parts of diminishing high collapse protection type polycarboxylate superplasticizer mother liquor, wide 15 30 parts of molecular weight distribution high-adaptability type polycarboxylic acid slump retaining agent mother liquor, 0.025 0.1 parts of cement-based gelling material viscosity modifier, soluble Xu.The present invention provides a kind of self-compaction high workability concrete polycarboxylate superplasticizer composition, viscosity modifier and plastic expansion agent reduce water-reducing agent and protect thick dose of matching sensibility, in, low sour ether matches than water-reducing agent and high-adaptability type slump retaining agent, promote diminishing component sustained release, it is lasting, adaptable to protect plasticity.

Description

A kind of polycarboxylate superplasticizer composition for self-compacting high workability concrete

technical field

The invention belongs to the field of cement additives and is suitable for micro-expansion, non-shrinkage, high-strength, high-impermeability, vibration-free concrete in houses, roads, bridges and water conservancy structures. Specifically relates to a polycarboxylate water reducer composition for self-compacting high workability concrete.

Background technique

With the continuous innovation of architectural design concepts, key projects have put forward higher requirements for concrete technology and construction methods. Self-compacting concrete increases the freedom of building structure design due to its characteristics of self-filling, self-leveling, self-compacting, and micro-expansion. The workability and stability of self-compacting concrete is the key to realizing self-compacting pouring construction, and the water reducing agent has a direct impact on the performance of self-compacting concrete.

In addition to the usual water reducer, the self-compacting concrete admixture is generally matched with a thickener to retain water and plastic. Polycarboxylate superplasticizer products can obtain polycarboxylate superplasticizer products with a predetermined molecular structure through the independent design principle of polymers and solution radical polymerization technology, but because the functional index design of the superplasticizer is biased towards a single, self-compacting concrete High workability indicators such as water retention, plastic retention, and slump retention of the water reducing agent are difficult to solve by a single component, so the water reducing agent needs to be matched with different functional mother liquors and auxiliary small materials to achieve the functional design of self-compacting concrete.

CN 105330193 A discloses an ultra-dense concrete polycarboxylate water reducer for nuclear power and a preparation method thereof. The water reducer includes the following components and parts by weight per 100 parts: dispersed ether polycarboxylate water reducer 50-55 20-25 parts of slump-preserving ether polycarboxylate superplasticizer, 3-5 parts of retarder, 0.01-0.05 parts of defoamer, 1-3 parts of water-retaining agent, 1-2 parts of shrinkage reducing agent, preservative 0.1-0.3 parts, water is the balance; during preparation, the components can be uniformly mixed by weight. .

CN 105293987 A discloses a polycarboxylate compound water reducer for hydraulic self-compacting concrete and its preparation method and application, wherein the compound water reducer is composed of the following components in weight percentage: water reducing component 50-80%; slump-preserving component 5-40%; thickening component 1-10%; retarding component 1-20%; air-entraining component 0.1-2%. The invention improves the workability, fluidity, segregation resistance and slump retention performance of the self-compacting concrete.

CN 104829159 A discloses a method for preparing a slow-release controllable polycarboxylate water-reducer special for CRTS type III slab self-compacting concrete. Carboxylic acid superplasticizer mother liquor, type 2 slow-release polycarboxylate superplasticizer mother liquor, type 3 slow-release polycarboxylate superplasticizer mother liquor, slow-release control agent, retarder, liquid phase concrete thixotropic agent, stabilizer Foaming agent, defoaming agent and air-entraining agent compounded. The invention provides a special water-reducing agent for self-compacting concrete, which reduces the sensitivity of concrete water consumption, increases the stability of system performance, and reduces thixotropic changes. Strong adaptability and other technical advantages.

Contents of the invention

The technical problem to be solved by the present invention is to provide a polycarboxylate water reducer composition for self-compacting high workability concrete.

The molecular weight of the polycarboxylate superplasticizer constructed by the present invention has a multi-regional range. During the cement hydration process, the superplasticizer molecules of different time periods are anchored on the surface of cement particles and hydration products, ensuring that the slump retention performance of the superplasticizer is excellent. Molecular continuity supplement of water reducer with different molecular structure; the use of viscosity modifier is different from general thickener, the viscosity control is more independent and controllable; soluble plastic expansion agent assists water reducer to keep slump To a certain extent, the settlement and bleeding effect of concrete pouring after standing still can be reduced, and the shrinkage can be reasonably compensated.

A polycarboxylate superplasticizer composition for self-compacting high workability concrete, with a total mass of 100 parts, composed of the following raw materials by weight:

Medium acid ether ratio and high adaptability polycarboxylate superplasticizer mother liquor: 35~50 parts;

Mother liquor of polycarboxylate superplasticizer with low acid-ether ratio, low water reduction and high slump retention: 20~35 parts;

Wide molecular weight distribution and high adaptability polycarboxylate slump inhibitor mother liquor: 15~30 parts;

Viscosity modifier for cement-based cementitious materials: 0.025~0.1 part;

Plastic expansion agent for soluble slow-release cement-based cementitious materials: 0.02~0.1 parts;

The mass percentage of each mother liquor is 40%. The mother liquor of medium-acid-ether-ratio high-adaptability polycarboxylate superplasticizer is polymerized from the following components. The total mass of raw materials is 1000 parts. Each component includes:

Polyether macromonomer: 345~355;

Acrylic acid: 40.0~45.0;

Chain transfer agent: 1.63~2.10;

Hydrogen peroxide: 3.0~5.0;

Vitamin C: 0.80~0.95;

Liquid alkali: 10~20;

Water: the rest.

The medium-acid-ether ratio high-adaptability polycarboxylate superplasticizer mother liquor, as a preference, the polyether macromonomer is methallyl polyoxyethylene ether, isopentenol polyoxyethylene ether, isobutylene One or more compositions of alcohol polyoxyethylene ether; the polyether macromonomer is preferably 350~355; the amount of acrylic acid is preferably 40.0~42.5; the chain transfer agent is mercaptoacetic acid, mercaptopropionic acid One or two of them; the chain transfer agent is preferably thioglycolic acid, and the consumption is 1.63~1.90. Described hydrogen peroxide is 27.5wt% technical grade hydrogen peroxide. The liquid caustic soda is an industrial-grade NaOH solution with a mass percentage of 30-32%.

The low-acid-ether ratio, low water-reducing and high-slump-retaining polycarboxylate superplasticizer mother liquor is formed by polymerizing the following components. The total mass of raw materials is 1000 parts, and each component includes:

Polyether macromonomer: 360~375;

Acrylic acid: 22.0~35.0;

Chain transfer agent: 1.25~1.80;

Hydrogen peroxide: 2.0~3.5;

Vitamin C: 0.55~0.75;

Liquid caustic soda: 10~15;

Water: the rest.

The low acid-ether ratio, low water reduction and high slump retention polycarboxylate superplasticizer mother liquor, as a preference, the polyether macromonomer is preferably 360~365; the amount of acrylic acid is preferably 28.5~35.0; The chain transfer agent mentioned is thioglycolic acid, and the consumption is 1.25~1.65.

The polyether macromonomer is composed of one or more of methallyl polyoxyethylene ether, isopentenol polyoxyethylene ether, and isobutylene alcohol polyoxyethylene ether; the preferred quality of the polyether macromonomer is Composition of 2000 and 2400 molecular weight isobutenol ethoxylates in a ratio of 1:2. Described hydrogen peroxide is 27.5wt% technical grade hydrogen peroxide. The liquid caustic soda is an industrial-grade NaOH solution with a mass percentage of 30-32%.

Described a kind of broad molecular weight distribution high adaptability polycarboxylate slump retaining agent mother liquor is formed by the polymerization of the following components, with a total mass of 1000 parts, and the specific steps are as follows:

1) Add 325~335 parts of polyether macromonomer and 200~250 parts of water into the reaction kettle, and continue to stir until the solution has no obvious lumps or flakes; control the temperature in the kettle at 5~25°C, and Put in 2.0~5.0 parts of hydrogen peroxide and 2.1~4.5 parts of sulfonic acid small monomers;

2) Within 10 minutes of adding hydrogen peroxide, start to drop the initiator and small monomer solution in sequence; the initiator is composed of 5.0~10.0 parts of organic weak reducing agent and 100~120 parts of water; the small monomer solution is composed of 4.9~10.5 parts of sulfonic acid Small monomers, 5.0-10.0 parts of fumaric acid, 30.0-45.0 parts of acrylate monomers and 60-90 parts of water; the dripping time of the initiator is 0.5 hours longer than that of the small monomer solution;

During the dropwise addition of the small monomer solution, add 1/2 of the small monomer solution in the first 1/3 of the time, add 1/3 of the small monomer solution in the middle 1/3 of the time, and add six One-third of the amount of small monomer solution;

3) After the dropwise addition, mature for 1~2h. When the temperature of the reaction solution is lower than 30°C, add 6~10 parts of liquid caustic soda, add water and stir evenly, and then let stand for 10~15h.

The polyether macromonomer is preferably prenol polyoxyethylene ether with a molecular weight of 3000.

The mother liquor of a wide molecular weight distribution and high adaptability type polycarboxylic acid slump-retaining agent, the sulfonic acid small monomer in the preparation process is one or more of sodium vinyl sulfonate and sodium allyl sulfonate; The organic weak reducing agent is one or both of glucose monohydrate and fructose; the acrylate monomer is hydroxyethyl acrylate, hydroxypropyl acrylate, methyl acrylate, ethyl acrylate, methacrylic acid One or several compositions of methyl esters; the dropping time of the small monomer solution is 4.0~5.0h.

The hydrogen peroxide is industrial-grade hydrogen peroxide with a mass percentage of 27.5%; the liquid caustic soda is an industrial-grade NaOH solution with a mass percentage of 30-32%.

The preparation method of the medium-acid-ether ratio high-adaptability polycarboxylate water-reducer and low-acid-ether ratio low water-reducing high-slump-retaining polycarboxylate water-reducer is as follows:

Put the polyether macromonomer in the reaction vessel, and keep stirring until the stirred solution has no obvious block or flake material;

After hydrogen peroxide is added into the fully dissolved polyether macromonomer solution, the initiator and small monomer solution are sequentially added within 10 minutes. The initiator is an aqueous solution mixture of chain transfer agent and vitamin C (reducing agent). The small monomer solution is an aqueous solution of acrylic acid; the dropping time of the small monomer solution is 3~4h, and the initiator lags behind the small monomer solution for 10~20min before the dropwise addition is completed;

Do not turn on the cooling water circulation, put it in the reactor for 1~2h, then automatically cool down for 10~15h, add liquid caustic soda, replenish water, and stir evenly.

The viscosity modifier for cement-based cementitious materials is a solid-liquid composition with a total mass of 100 parts, containing the following raw materials in parts by weight:

Salt intercalation agent: 65~75 parts;

Organic intercalation agent: 10~20 parts;

Cationic monomer: 10~20 parts;

Alkylphenol polyoxyethylene ether: 5~15 parts.

The salt intercalation agent is a mixture of sodium nitrate and sodium sulfate with a mass ratio of 1:1; the organic intercalation agent is preferably one or both of polyethylene glycol and polypropylene glycol with a molecular weight of 400-1000 Composition; the cationic monomer is one or Several compositions; the alkylphenol polyoxyethylene ether is one or two compositions of OP-10 and NP-10 nonylphenol polyoxyethylene ethers.

The plastic expansion agent for the soluble slow-release cement-based gelling material is N,N'-dinitrosopentamethylenetetramine.

The beneficial effects of the present invention are:

1. Medium acid-ether ratio and high adaptability polycarboxylate superplasticizer The design concept of medium acid-ether ratio and high branched chain density, the molecular size becomes larger, to a certain extent, assists the length of the main chain of the superplasticizer molecule to constrain the superplasticizer molecules in the strong adsorption The initial adsorption capacity in a high-quality hydration environment reduces the probability of segregation and bleeding; the low acid-ether ratio design of the low-acid-ether ratio low water reduction high-slump polycarboxylate superplasticizer and high branched chain density design, the polycarboxylate mother liquor performance The initial water reduction rate is low, and the later water reduction rate is gradually enlarged.

2. The difference in the main chain length of the wide molecular weight distribution and high adaptability polycarboxylate slump-retaining agent is within a reasonable range; the diversified design of acrylate monomers is matched with ester-based monomers at different hydrolysis time points to meet the needs of different water levels. Adsorption-dispersion in chemical environment and medium; high-performance viscosity modifier uses cationic monomers to disperse early-strength minerals to stimulate their hydration and increase viscosity, and then supplemented with salts and organic intercalants for layered The hydration product is filled to reduce the probability of adsorption of water reducer molecules to ensure the fluidity of the mixture.

Detailed ways

The present invention is further elaborated below by examples, and the following description is only for explaining the present invention, and does not limit the content.

Example 1,

A medium-acid-ether ratio high-adaptability polycarboxylate superplasticizer masterbatch, which is polymerized from the following components. The total mass of raw materials is 1000. The components and process parameters are as follows:

Primer: 2000 molecular weight isobutenol polyoxyethylene ether: 116.7, 2400 molecular weight isobutenol polyoxyethylene ether: 233.3, water: 250;

Hydrogen peroxide solution: 27.5wt% Industrial grade hydrogen peroxide: 5.0, water: 20;

Add the initiator and the small monomer solution sequentially within 10 minutes after adding the hydrogen peroxide;

Initiator: thioglycolic acid: 1.85, vitamin C: 0.88, water: 120;

Small monomer solution: acrylic acid: 42.4, water: 50;

Initiator dropping time: 3.5h;

The small monomer solution dripping time is 3.0h;

Holding time: 2h;

Liquid caustic: 10

Hydration: 149.87.

A masterbatch of polycarboxylate superplasticizer with low acid-ether ratio, low water reduction and high slump retention. The superplasticizer is polymerized from the following components. The total mass of raw materials is 1000. The components and process parameters are as follows:

Primer: 2000 molecular weight isobutenol polyoxyethylene ether: 123, 2400 molecular weight isobutenol polyoxyethylene ether: 246, water: 250;

Hydrogen peroxide solution: 27.5wt% Industrial grade hydrogen peroxide: 3.3, water: 12;

Add the initiator and the small monomer solution sequentially within 10 minutes after adding the hydrogen peroxide;

Initiator: mercaptopropionic acid: 1.55, vitamin C: 0.58, water: 120;

Small monomer solution: acrylic acid: 28.7, water: 50;

Initiator dropping time: 2.2h;

The small monomer solution dripping time is 1.8h;

Holding time: 2h;

Liquid caustic: 10;

Hydration: 155.77.

A mother liquid of polycarboxylate slump-retaining agent with wide molecular weight distribution and high adaptability. The water reducer is polymerized from the following components. The total mass of raw materials is 1000. The components and process parameters are as follows:

Primer: 3000 molecular weight isopentenol polyoxyethylene ether: 327, water: 235;

Hydrogen peroxide solution: 27.5wt% Industrial grade hydrogen peroxide: 4.2, water: 10;

Sodium vinyl sulfonate: 3.0;

After adding hydrogen peroxide solution and sodium vinyl sulfonate at one time, add initiator and small monomer solution sequentially within 10 minutes;

Initiator: glucose monohydrate: 8.6, water: 110;

Small monomer solution: sodium vinyl sulfonate: 7.0, fumaric acid: 10.0, hydroxyethyl acrylate: 15.7, hydroxypropyl acrylate: 15.5, methyl methacrylate: 8.2, water: 70;

Initiator dropping time: 5.0h;

The small monomer solution dripping time is 4.5h;

Add 1/2 of the small monomer solution in the first 1/3 of the time period, add 1/3 of the small monomer solution in the middle 1/3 of the time period, and add 1/6 of the small monomer solution in the last 1/3 of the time period solution volume;

The initiator solution is added dropwise at a constant speed;

Holding time: 2.0h;

When the temperature of the reaction solution is lower than 30 degrees, slowly add liquid caustic soda 8, replenish water 167.8;

After stirring evenly, let it stand for 12 hours to obtain the finished product.

A viscosity modifier for cement-based cementitious materials, the viscosity modifier is a solid-liquid composition, the total mass of the solid-liquid composition is 100 parts, and the solid-liquid composition contains the following raw materials in parts by weight:

The salt intercalation agent is sodium nitrate and sodium sulfate, and the specific dosage is:

Sodium nitrate: 32.5 parts, sodium sulfate: 32.5 parts;

The organic intercalation agent uses polyethylene glycol with a molecular weight of 400, and the specific dosage is:

Molecular weight 400 polyethylene glycol: 10 parts;

The cationic monomer is acryloyloxyethyltrimethylammonium chloride, and the specific dosage is:

Acryloyloxyethyltrimethylammonium chloride: 12 parts;

Alkylphenol polyoxyethylene ether is selected from OP-10 type nonylphenol polyoxyethylene ether, and the specific dosage is:

OP-10 type nonylphenol polyoxyethylene ether: 13 parts.

The plastic expansion agent for soluble slow-release cement-based cementitious materials is N,N'-dinitrosopentamethylenetetramine.

Example 2

A polycarboxylate superplasticizer composition for self-compacting concrete, compounded from the following raw materials, with a total mass part of 100, containing the following raw materials in parts by weight:

Mother liquor of polycarboxylate superplasticizer with medium acid-ether ratio and high adaptability: 35 parts;

Mother liquor of polycarboxylate superplasticizer with low acid-ether ratio, low water reduction and high slump retention: 35 parts;

Broad molecular weight distribution and high adaptability polycarboxylate slump retaining agent mother liquor: 29.92 parts;

High-performance viscosity modifier for cement-based cementitious materials: 0.03 parts;

Plastic expansion agent for soluble slow-release cement-based cementitious materials: 0.05 parts.

Example 3

A polycarboxylate superplasticizer composition for self-compacting high workability concrete, compounded from the following raw materials, with a total mass of 100, containing the following raw materials by weight:

Medium acid ether ratio high adaptability polycarboxylate superplasticizer mother liquor: 49.9 parts;

Mother liquor of polycarboxylate superplasticizer with low acid-ether ratio, low water reduction and high slump retention: 30 parts;

Broad molecular weight distribution and high adaptability polycarboxylate slump retention agent mother liquor: 20 parts;

High-performance viscosity modifier for cement-based cementitious materials: 0.08 parts;

Plastic expansion agent for soluble slow-release cement-based cementitious materials: 0.02 parts.

Example 4

A polycarboxylate superplasticizer composition for self-compacting high workability concrete, compounded from the following raw materials, the total mass parts are 100, and the masterbatch contains the following raw materials by weight:

Medium acid ether ratio high adaptability polycarboxylate superplasticizer mother liquor: 42.5 parts;

Mother liquor of polycarboxylate superplasticizer with low acid-ether ratio, low water reduction and high slump retention: 27.5 parts;

Broad molecular weight distribution and high adaptability polycarboxylate slump inhibitor mother liquor: 29.85 parts;

High-performance viscosity modifier for cement-based cementitious materials: 0.06 parts;

Plastic expansion agent for soluble slow-release cement-based cementitious materials: 0.09 parts.

The polycarboxylate water reducer mother liquor for self-compacting high workability concrete of Examples 2, 3, and 4 was prepared into a 10% concentration water reducer with the common polycarboxylate water reducer mother liquor, and different types of water reducers with the same amount were tested. Concrete initial slump/expansion degree and time-lapse slump/expansion degree, bleeding rate, strength and other indicators under the action of water agent. The cement used in the experiment is Huaxin 42.5 ordinary silicate cement, referring to the test standard of GB/8076-2008 "Concrete Admixtures".

According to fluidity data, bleeding rate, strength and other indicators, it can be observed that the fluidity of polycarboxylate superplasticizers for self-compacting high workability concrete tends to high fluidity and high fluidity retention, and water retention and Good cohesion and low bleeding rate. This high workability state ensures that the self-compacting concrete is not easy to segregate, settle and stratify after pouring. Therefore, the self-compacting high workability concrete uses polycarboxylate superplasticizer to improve the concrete strength. Qualitative development has a guaranteed effect, and the 28d strength is better than that of ordinary water reducers.

Effect of different water reducing agents on concrete performance

Types of superplasticizers Initial slump/expansion mm 1h slump/expansion mm Initial bleeding rate % 28d Strength MPa Ordinary water reducer 190/570 165/485 2.1 42.3 Example 2 200/560 180/530 0.4 45.2 Example 3 205/555 190/550 0.3 44.8 Example 4 200/550 180/545 0.3 45.6

Claims (5)

1. a kind of self-compaction high workability concrete polycarboxylate superplasticizer composition, gross mass part is 100, by following weight parts Raw material compounding composition：

Middle acid ether is than high-adaptability polycarboxylate superplasticizer mother liquor：35 ~ 50 parts；

Low acid ether is than low diminishing high collapse protection type polycarboxylate superplasticizer mother liquor：20 ~ 35 parts；

Wide molecular weight distribution high-adaptability type polycarboxylic acid slump retaining agent mother liquor：15 ~ 30 parts；

Cement-based gelling material viscosity modifier：0.025 ~ 0.1 part；

Soluble Xu puts type cement-based gelling material plastic expansion agent：0.02 ~ 0.1 part；

Each mother liquor mass percent is 40%, and the middle sour ether is than high-adaptability polycarboxylate superplasticizer mother liquor, for by following each Component is polymerized, and raw material gross mass is 1000 parts, and each component includes：

Polyether macromonomer：345~355；

Acrylic acid：40.0~45.0；

Chain-transferring agent：1.63~2.10；

Hydrogen peroxide：3.0~5.0；

Victoria C：0.80~0.95；

Liquid caustic soda：10~20；

Water：Remaining；

The low sour ether is polymerized than low diminishing high collapse protection type polycarboxylate superplasticizer mother liquor by following each components, the total matter of raw material Amount is 1000 parts, and each component includes：

Polyether macromonomer：360~375；

Acrylic acid：22.0~35.0；

Chain-transferring agent：1.25~1.80；

Hydrogen peroxide：2.0~3.5；

Victoria C：0.55~0.75；

Liquid caustic soda：10~15；

Water：Remaining；

A kind of wide molecular weight distribution high-adaptability type polycarboxylic acid slump retaining agent mother liquor, is polymerized by following each components, total matter Amount is 1000 parts, is as follows：

1) 325 ~ 335 parts of polyether macromonomers and 200 ~ 250 parts of water are added in reaction kettle, it is lasting to stir, until solution is without bright Aobvious blocky or sheet material；Temperature in the kettle is controlled at 5 ~ 25 DEG C, disposably puts into 2.0 ~ 5.0 parts of hydrogen peroxide and 2.1 ~ 4.5 parts of sulphurs Acids minor comonomer；

2) hydrogen peroxide is added in 10min, starts that initiator, minor comonomer solution is added dropwise successively；Initiator is organic by 5.0 ~ 10.0 parts Class weak reductant and 100 ~ 120 parts of water compositions；Minor comonomer solution is by 4.9 ~ 10.5 parts of sulphonic acids minor comonomers, 5.0 ~ 10.0 parts of rich horses Acid, 30.0 ~ 45.0 parts of acrylic ester monomers and 60 ~ 90 parts of water compositions；Initiator time for adding is 0.5 small more than minor comonomer solution When；

During minor comonomer solution is added dropwise, the minor comonomer amount of solution of half is added in preceding 1/3 time, and intermediate 1/3 time is added / 6th minor comonomer amount of solution is added in the minor comonomer amount of solution of one third, rear 1/3 time；

3) after completion of dropwise addition, 1 ~ 2h is cured, when reaction solution temperature is less than 30 DEG C, 6 ~ 10 parts of liquid caustic soda is added, moisturizing stirring is equal 10 ~ 15h is stood after even；

The cement-based gelling material viscosity modifier is solid-liquid combination object, and gross mass is 100 parts, contains following weight parts Raw material：

Salt intercalator：65 ~ 75 parts；

Organic intercalation agent：10 ~ 20 parts；

Cationic monomer：10 ~ 20 parts；

Alkyl phenol polyoxyethylene ether：5 ~ 15 parts；

It is N, N '-dinitrosopentamethlyene tetramines that soluble Xu, which puts type cement-based gelling material with plastic expansion agent,.

2. self-compaction high workability concrete polycarboxylate superplasticizer composition according to claim 1, which is characterized in that The middle sour ether than in high-adaptability polycarboxylate superplasticizer mother liquor, the polyether macromonomer be methyl allyl polyoxyethylene ether, One or more of compositions of isoamyl alcohol polyoxyethylene ether, isobutene alcohol polyoxyethylene ether；The chain-transferring agent is sulfydryl second It is one or two kinds of in acid, mercaptopropionic acid；The hydrogen peroxide is 27.5wt% industrial grade hydrogen peroxides；The liquid caustic soda is mass percent 30 ~ 32% technical grade NaOH solution.

3. self-compaction high workability concrete polycarboxylate superplasticizer composition according to claim 1, which is characterized in that The low sour ether is described double than in low diminishing high collapse protection type polycarboxylate superplasticizer mother liquor, the chain-transferring agent is thioacetic acid Oxygen water is 27.5wt% industrial grade hydrogen peroxides, and the liquid caustic soda is the technical grade NaOH solution of mass percent 30 ~ 32%, the polyethers Polymeric monomer is methyl allyl polyoxyethylene ether, isoamyl alcohol polyoxyethylene ether, one kind or several of isobutene alcohol polyoxyethylene ether Kind composition.

4. self-compaction high workability concrete polycarboxylate superplasticizer composition according to claim 1, which is characterized in that The preparation process of the width molecular weight distribution high-adaptability type polycarboxylic acid slump retaining agent mother liquor, the polyether macromonomer are 3000 molecules The isoamyl alcohol polyoxyethylene ether of amount, the sulphonic acids minor comonomer be sodium vinyl sulfonate, Sodium Allyl Sulfonate one kind or several Kind composition；The organic weak reductant is one or two kinds of compositions of Dextrose Monohydrate, fructose；The acrylic ester monomer For the one or more of hydroxy-ethyl acrylate, hydroxypropyl acrylate, methyl acrylate, ethyl acrylate, methyl methacrylate Composition；The hydrogen peroxide is that mass percent is 27.5% industrial grade hydrogen peroxide；The liquid caustic soda is the work of mass percent 30 ~ 32% Industry grade NaOH solution.

5. self-compaction high workability concrete polycarboxylate superplasticizer composition according to claim 1, which is characterized in that In the cement-based gelling material viscosity modifier, it is 1 that the salt intercalator, which is mass ratio,：1 sodium nitrate and sodium sulphate Mixture；The organic intercalator is one or two kinds of combinations of the polyethylene glycol of molecular weight 400 ~ 1000, polypropylene glycol Object；The cationic monomer is acryloyloxyethyl trimethyl ammonium chloride, n,N-Dimethylformamide, N, N- dimethyl second The one or more combination object of amide, erucyl amide；The alkyl phenol polyoxyethylene ether is OP-10, NP-10 type polyoxyethylene nonyl phenyl One or two kinds of compositions of vinethene.