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CN106698998B - A kind of high-performance viscosity modifier for cement-based gelling material - Google Patents

A kind of high-performance viscosity modifier for cement-based gelling material Download PDF

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CN106698998B
CN106698998B CN201611107110.3A CN201611107110A CN106698998B CN 106698998 B CN106698998 B CN 106698998B CN 201611107110 A CN201611107110 A CN 201611107110A CN 106698998 B CN106698998 B CN 106698998B
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viscosity modifier
cement
parts
solid
polyoxyethylene ether
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CN106698998A (en
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柯凯
李学锋
常鹰
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Shandong Yongzheng Cement Co ltd
Shandong Yongzheng Industrial Technology Research Institute Co ltd
Shandong Yongzheng New Materials Co ltd
Wuxi Xiangyuan Information Technology Co ltd
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Hubei University of Technology
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/44—Thickening, gelling or viscosity increasing agents

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

Abstract

The present invention provides a kind of high-performance viscosity modifiers for cement-based gelling material.The viscosity modifier is the aqueous solution of solid-liquid combination object, and solid-liquid combination object gross mass is 100 parts, and the solid-liquid combination object contains the raw material of following weight parts component: salt intercalator: 65-75 parts；Organic intercalation agent: 10-20 parts；Cationic monomer: 10-20 parts；Alkyl phenol polyoxyethylene ether: 5-15 parts.The viscosity modifier is the aqueous solution of solid-liquid combination object, and for the solid solution capacity ratio of solid-liquid combination object in aqueous solution 5 ~ 8%, volume of the viscosity modifier in cement-based gelling material is account for cementitious material quality summation 0.6 ~ 1.0%.The present invention disperses cement clinker high early strength type mineral C using cationic monomer in component design3A、C4AF mineral, the moisture of release early-strength mineral package；Early-strength mineral are excited, cohesiveness is increased；The microdilatancy effect of early-strength hydrated product, which is equivalent to, in the present invention increases cementitious material volume, has slight amplification to act on to wrapped.

Description

A kind of high-performance viscosity modifier for cement-based gelling material
Technical field:
The present invention relates to the field of building materials, and in particular to a kind of high-performance viscosity for cement-based gelling material Modifying agent.
Background technique:
As modern architecture is to high level and complicated form development, Steel Bars in Concrete Structure arranges intensive and interstitital texture Shape is changeable, and concrete must not only meet construction high fluidity requirement, should also have good cohesiveness and water-retaining property, and flows Property with water-retaining property, the mutually contradictory contradiction of cohesiveness index, homogenieity is good in order to obtain, viscosity is appropriate, favorable working performance newly mixes Concrete usually obtains the mixed of flow properties ideal by increasing water-reducing agent dosage or taking high water reducing rate type water-reducing agent in engineering Solidifying soil, but also easily lead to concrete and isolation excreting water phenomenon occur.
Excreting water phenomenon is isolated to eliminate, controls the rheological parameter of concrete by the way that thickener, air entraining agent is added, and adjust The cohesiveness and water-retaining property of the inside of concrete, most common is cellulose ethers and polyacrylamide thickener to adjust The viscosity of concrete is saved, the bridge effect between thickener class high molecular polymer and cement granules will form a large amount of flocculation knot Structure, which can consume the Free water in slurry, but its volume is not easy to adjust, and mobility and the more difficult matching of viscosity are flat Weighing apparatus.Therefore suggest the viscosity modifier using non-adsorbed type, to guarantee the function and effect of water-reducing agent.
104973817 A of patent CN discloses a kind of concrete viscosity tune suitable for polycarboxylate water-reducer compatible use Save agent and preparation method thereof, components in weight percent: clay stabilizer: 0.1 ~ 10%；Air entraining agent: 0.01 ~ 5%；Foam stabilizer: 0.001~5%；Thickener: 0.001 ~ 10%；Water: 75 ~ 99%.Blender is first added water to, other components are sufficiently mixed uniformly, open It opens after blender runs smoothly, then slowly investment, holds material and sufficiently dissolve and stir evenly.
104031464 A of patent CN discloses the viscosity modifier of the high concentration dispersion for fine inorganic particles, passes through Assign high concentration dispersion (such as the printing ink composition of the high concentration dispersion of fine inorganic particles, the function of fine inorganic particles Can paste compound or coating compositions) excellent viscosity modifier effect, it is possible to reduce the print steps of manufacture component or substrate or Inconvenient generation in application step, and the high concentration dispersion of the fine inorganic particles comprising the viscosity modifier is provided.Institute The high concentration dispersion for stating the fine inorganic particles of viscosity modifier, as main component, which is included in molecule knot Reaction product in structure with 2 to 20 phosphoric acid foundations or carboxyl, the reaction product is by the polyalcohol with two to six hydroxyls Material is introduced with phosphate or completes base and introduces material, and material is introduced to phosphate with the hydroxyl of 3:1 to 1:1 or carboxyl introduces material Expect that molar ratio reaction is made.
104479066 A of patent CN discloses a kind of concrete viscosity regulator and preparation method thereof, the viscosity modifier It is obtained by cationic monomer, anionic carboxyl monomer and internal crosslinker by free-radical polymerized, cationic monomer, anion carboxylic Base monomer, internal crosslinker molar ratio be 1:(0.5 ~ 5): (0.01 ~ 0.1).The present invention uses cationic monomer, anionic carboxyl Monomer is copolymerized to obtain amphoteric polymer, has apparent anti-poly- electric matter property, shows preferable thickening property；In being added simultaneously Crosslinking agent makes to form tridimensional network between viscosity modifier and gelling material particles, and concrete disintegration bleeding is greatly reduced and asks Topic, improves the workability of concrete.
Summary of the invention:
It is an object of that present invention to provide a kind of high-performance viscosity improvers for cement-based gelling material.In view of this, The technical problem to be solved in the present invention is that providing a kind of grasp is suitable for high-flowing concrete and single conventional polycarboxylic acids Water-reducing agent component can not solve high fluidity mixture while meet the auxiliary compounding component of cohesiveness and water-retaining property, building not with Thickener consumes the non-adsorbent viscosity modifier system of Free water, is difficult point and the pass of viscosity modifier multicomponent mixture matched design Where key.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of high-performance viscosity modifier for cement-based gelling material, it is characterised in that: the viscosity modifier For the aqueous solution of solid-liquid combination object, solid-liquid combination object gross mass is 100 parts, and the solid-liquid combination object contains following weight parts component 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.
The salt intercalator be phosphorous acid group, sulfate radical, nitrate anion salt compounds, i.e., sodium phosphate, potassium phosphate, Sodium nitrate, potassium nitrate, sodium sulphate, any several composition in potassium sulfate；The salt intercalator is preferably that early-strength is ripe Expect the salt compounds of mineral adsorption capacity nitrate anion, sulfate radical larger and without slow setting effect；The salt intercalator is preferred For the higher sodium salt of cost performance, i.e. one or both of sodium sulphate, sodium nitrate combines；The salt intercalator is preferably quality Than the mixture of sodium nitrate and sodium sulphate for 1:1.
The organic intercalator is containing-CH2-OH、-CH(CH3)-OH minor comonomer or polymer, i.e., triethanolamine, One of triisopropanolamine, diethanol monoisopropanolamine, polyethylene glycol, polypropylene glycol or any several compositions；It is described to have Machine class intercalator preferably contains-CH2-OH、-CH(CH3)-OH middle-molecular-weihydroxyethyl is smaller but has the poly of certain space steric effect One of object, i.e. polyethylene glycol, polypropylene glycol or any two kinds of compositions；The organic intercalator is preferably molecular weight One or two kinds of compositions of 400 ~ 1000 polyethylene glycol, polypropylene glycol.
The cationic monomer is minor comonomer or polymer containing-CO-NH- ,-NH-, i.e. acryloyl-oxyethyl three Ammonio methacrylate, n,N-Dimethylformamide, n,N-dimethylacetamide, erucyl amide, stearic amide, gathers acrylamide One of acrylamide or any several compositions；The cationic monomer be preferably contain-CO-NH- ,-NH- has point Son measures minor comonomer or polymer smaller but that have certain space steric hindrance, i.e. acryloyloxyethyl trimethyl ammonium chloride, N, N- One of dimethylformamide, n,N-dimethylacetamide, erucyl amide or any several compositions.
The alkyl phenol polyoxyethylene ether is nonylphenol polyoxyethylene ether, octyl phenol polyoxyethylene ether, dodecyl are poly- One of ethylene oxide ether, Dinonylphenol Polyoxyethylene Ether or any several compositions；The alkyl phenol polyoxyethylene ether is preferred For the stronger nonylphenol polyoxyethylene ether of hydrophobic end oleophylic ability；The alkyl phenol polyoxyethylene ether is preferably water-soluble preferable One or two kinds of compositions of OP-10, NP-10 type nonylphenol polyoxyethylene ether.
A kind of high-performance viscosity modifier for cement-based gelling material, it is characterised in that: the viscosity modifier For the aqueous solution of solid-liquid combination object, the solid solution capacity ratio of solid-liquid combination object in aqueous solution is 5 ~ 8%, and the viscosity modifier is in water Volume in mud based cementitious material is account for cementitious material quality summation 0.6 ~ 1.0%, the solid solution measurer of the solid solution matter composition Body ratio and volume are determined in cement-based gelling material using rear mobility and water-retaining property according to viscosity modifier.
The positive effect of the present invention is
1, the present invention disperses cement clinker high early strength type mineral C using cationic monomer in component design3A、C4AF mineral, Discharge the moisture of early-strength mineral package；Early-strength mineral are excited, cohesiveness is increased；
2, the microdilatancy effect of early-strength hydrated product is equivalent to increase cementitious material volume in the present invention, to package Property there is slight amplification to act on；
3, invention prevents cationic monomers to disperse early-strength mineral, avoids and excites its aquation, will not cause to cause Viscosity increases, and causes polycarboxylate water-reducer branch intercalation in the stratiform aquation product structure of its early-strength mineral, loses branch Space steric effect causes mobility to reduce and lose and accelerates；
4, it is aided with salt in the viscosity modifying components in the invention, organic species intercalator carries out stratiform hydrated product Filling processing, consumes interlayer surface energy, to reduce the early-strength hydrated product to the sticking probability of polycarboxylate water-reducer molecule, with Guarantee the mobility of cement-based gelling material mixture.
Specific embodiment
Clear, complete description further is carried out to technical solution of the present invention below with reference to embodiment.
Embodiment 1:
Salt intercalator selects sodium nitrate and sodium sulphate, specific dosage are as follows: sodium nitrate: 32.5 parts, sodium sulphate: 32.5 parts；
Organic intercalator selects the polyethylene glycol of molecular weight 400, specific dosage are as follows: 400 polyethylene glycol of molecular weight: 10 Part；
Cationic monomer selects acryloyloxyethyl trimethyl ammonium chloride, specific dosage are as follows: acryloyl-oxyethyl Trimethyl ammonium chloride: 12 parts；
Alkyl phenol polyoxyethylene ether selects OP-10 type nonylphenol polyoxyethylene ether, specific dosage are as follows: OP-10 type nonyl phenol Polyoxyethylene ether: 13 parts.
Viscosity modifier is configured according to the above ratio and is dissolved 5 grams of composition, adds 95 grams of water, is configured according to solid solution matter ratio 5% At viscosity modifier；The viscosity modifier volume is 1.0%.
Embodiment 2
Salt intercalator selects sodium nitrate and sodium sulphate, specific dosage are as follows: sodium nitrate: 35 parts, sodium sulphate: 35 parts；
Organic intercalator selects 400 polyethylene glycol of molecular weight and 800 polypropylene glycol of molecular weight, specific dosage are as follows: molecule Measure 400 polyethylene glycol: 5 parts, 800 polypropylene glycol of molecular weight: 10 parts；
Cationic monomer selects n,N-Dimethylformamide, n,N-dimethylacetamide, specific dosage are as follows: N, N- diformazan Base formamide: 5 parts, n,N-dimethylacetamide: 5 parts；
Alkyl phenol polyoxyethylene ether selects NP-10 type nonylphenol polyoxyethylene ether, specific dosage are as follows: NP-10 type nonyl phenol Polyoxyethylene ether: 5 parts.
Viscosity modifier is configured according to the above ratio and is dissolved 6.5 grams of composition, adds 93.5 grams of water, according to solid solution matter ratio 6.5% is configured to viscosity modifier；The viscosity modifier volume is 0.8%.
Embodiment 3
Salt intercalator selects sodium nitrate, specific dosage are as follows: sodium nitrate: 67 parts；
Organic intercalator selects 600 polyethylene glycol of molecular weight, specific dosage are as follows: 600 polyethylene glycol of molecular weight: 10 parts；
Cationic monomer selects erucyl amide, specific dosage are as follows: erucyl amide: 12 parts；
Alkyl phenol polyoxyethylene ether selects NP-10 type nonylphenol polyoxyethylene ether, specific dosage are as follows: NP-10 type nonyl phenol Polyoxyethylene ether: 11 parts.
Viscosity modifier is configured according to the above ratio and is dissolved 7.5 grams of composition, adds 92.5 grams of water, according to solid solution matter ratio 7.5% is configured to viscosity modifier；The viscosity modifier volume is 0.6%.
Embodiment 4
Salt intercalator selects sodium nitrate and sodium sulphate, specific dosage are as follows: sodium nitrate: 37.5 parts, sodium sulphate: 37.5 parts；
Organic intercalator selects 400 polyethylene glycol of molecular weight and 800 polypropylene glycol of molecular weight, specific dosage are as follows: molecule Measure 400 polyethylene glycol: 10 parts, 800 polypropylene glycol of molecular weight: 10 parts；
Cationic monomer selects n,N-Dimethylformamide, n,N-dimethylacetamide, specific dosage are as follows: N, N- diformazan Base formamide: 10 parts, n,N-dimethylacetamide: 10 parts；
Alkyl phenol polyoxyethylene ether selects NP-10 type nonylphenol polyoxyethylene ether, specific dosage are as follows: NP-10 type nonyl phenol Polyoxyethylene ether: 15 parts.
Viscosity modifier is configured according to the above ratio and is dissolved 6.5 grams of composition, adds 93.5 grams of water, according to solid solution matter ratio 5.5% is configured to viscosity modifier；The viscosity modifier volume is 0.7%.
Example detection result
The high-performance viscosity modifier of example 1,2,3,4 is compared with general thickener, tests different viscosities respectively Modifying agent and general thickener be combined to concrete initial slump/divergence under water-reducing agent and through when the slump/divergence, The indexs such as bleeding rate.Testing cement used is new 42.5 ordinary portland cement of China, is surveyed with reference to GB/8076-2008 " concrete admixture " Test-object is quasi-.
Different viscosities modifying agent and thickener influence concrete performance
Water-reducing agent type Initial slump/divergence mm The 1h slump/divergence mm Bleeding rate %
Ordinary water-reducing agent 190/580 180/500 2.2
Ordinary water-reducing agent+thickener 195/560 185/520 1.0
Ordinary water-reducing agent+example 1 200/580 190/540 0.9
Ordinary water-reducing agent+example 2 205/590 195/535 0.6
Ordinary water-reducing agent+example 3 200/585 190/545 0.7
Ordinary water-reducing agent+example 4 210/595 195/540 0.6
According to indexs such as mobility data, bleeding rates, high-performance viscosity modifier can be observed and compare the stream of thickener From the point of view of dynamic property, initial fluidity is intended to more greatly relative to the blank sample for the ordinary water-reducing agent not compounded using any small powder, and Thickener, which is added, would generally reduce initial fluidity；On slump retaining, viscosity modifier overall effect is also significantly better than common diminishing The blank sample and compounding thickener sample of agent；On bleeding rate, thickener and viscosity modifier can reduce bleeding rate, and viscosity modifier Agent is slightly good to bleeding improvement；In conclusion the use of viscosity modifier can not reduce initial fluidity, and significantly improve guarantor Collapsing property, bleeding rate is synchronous to be reduced.
All features disclosed in this specification or disclosed all formulas and volume, in addition to mutually exclusive feature and/ Or it other than formula, volume, can combine in any way.It is any disclosed in this specification (including claim, abstract) Feature can be replaced by other alternative features that are equivalent or have similar purpose unless specifically stated.It removes and non-specifically chats It states, each feature is an example in a series of equivalent or similar characteristics.
Described above is only the non-limiting embodiment of invention, a large amount of embodiment can also be derived, for this field Those of ordinary skill for, not departing from the invention design and under the premise of do not make creative work, can also do The embodiment of several modifications and improvements out, these are all within the scope of protection of the present invention.

Claims (9)

1.一种用于水泥基胶凝材料的高性能粘度改性剂，其特征在于：所述的粘度改性剂为固液组合物的水溶液，固液组合物总质量为100份，所述固液组合物含有下述重量份组分的原料：1. a high-performance viscosity modifier for cement-based cementitious material, characterized in that: the viscosity modifier is an aqueous solution of a solid-liquid composition, and the solid-liquid composition gross mass is 100 parts, and the The solid-liquid composition contains the following raw materials in parts by weight: 含磷酸根、硫酸根、硝酸根的盐类插层剂：65-75份；Salt intercalating agent containing phosphate, sulfate and nitrate: 65-75 parts; 含-CH2-OH、-CH(CH3)-OH的小单体或多聚物的有机物插层剂：10-20份；Organic intercalating agent for small monomers or polymers containing -CH 2 -OH and -CH(CH 3 )-OH: 10-20 parts; 含-CO-NH-、-NH-的小单体或多聚物的阳离子型单体：10-20份；Cationic monomers of small monomers or polymers containing -CO-NH- and -NH-: 10-20 parts; 烷基酚聚氧乙烯醚：5-15份。Alkylphenol polyoxyethylene ether: 5-15 parts. 2.根据权利要求1所述的用于水泥基胶凝材料的 高性能粘度改性剂，其特征在于：所述的盐类插层剂为含磷酸根、硫酸根、硝酸根的盐类化合物，即磷酸钠、磷酸钾、硝酸钠、硝酸钾、硫酸钠、硫酸钾中的任意几种组合物。2. The high-performance viscosity modifier for cement-based cementitious material according to claim 1, wherein the salt intercalating agent is a salt compound containing phosphate, sulfate and nitrate , that is, any combination of sodium phosphate, potassium phosphate, sodium nitrate, potassium nitrate, sodium sulfate, and potassium sulfate. 3.根据权利要求1或2所述的用于水泥基胶凝材料的 高性能粘度改性剂，其特征在于：所述盐类插层剂为质量比为1：1的硝酸钠和硫酸钠的混合物。3. The high-performance viscosity modifier for cement-based cementitious material according to claim 1 or 2, wherein the salt intercalation agent is sodium nitrate and sodium sulfate with a mass ratio of 1:1 mixture. 4.根据权利要求1所述的用于水泥基胶凝材料的高性能粘度改性剂，其特征在于：所述的有机类插层剂为含-CH2-OH、-CH(CH3)-OH的小单体或多聚物，即三乙醇胺、三异丙醇胺、二乙醇单异丙醇胺、聚乙二醇、聚丙二醇中的一种或任意几种组合物。4. The high-performance viscosity modifier for cement-based cementitious materials according to claim 1, characterized in that: the organic intercalation agent is a compound containing -CH 2 -OH, -CH(CH 3 ) A small monomer or polymer of -OH, that is, one or any combination of triethanolamine, triisopropanolamine, diethanol monoisopropanolamine, polyethylene glycol, and polypropylene glycol. 5.根据权利要求1或4所述的用于水泥基胶凝材料的 高性能粘度改性剂，其特征在于：所述有机类插层剂为分子量400~1000的聚乙二醇、聚丙二醇的一种或两种组合物。5. The high-performance viscosity modifier for cement-based cementitious material according to claim 1 or 4, wherein the organic intercalating agent is polyethylene glycol and polypropylene glycol with a molecular weight of 400-1000. of one or both combinations. 6.根据权利要求1所述的用于水泥基胶凝材料的高性能粘度改性剂，其特征在于：所述的阳离子型单体为含-CO-NH-、-NH-的小单体或多聚物，即丙烯酰氧基乙基三甲基氯化铵、丙烯酰胺、N，N-二甲基甲酰胺、N，N-二甲基乙酰胺、芥酸酰胺、硬脂酸酰胺、聚丙烯酰胺中的一种或任意几种组合物。6. The high-performance viscosity modifier for cement-based cementitious materials according to claim 1, wherein the cationic monomer is a small monomer containing -CO-NH- and -NH- or polymers, i.e. acryloyloxyethyltrimethylammonium chloride, acrylamide, N,N-dimethylformamide, N,N-dimethylacetamide, erucamide, stearic acid amide , one or any combination of polyacrylamide. 7.根据权利要求1所述的用于水泥基胶凝材料的高性能粘度改性剂，其特征在于：所述的烷基酚聚氧乙烯醚为壬基酚聚氧乙烯醚、辛基酚聚氧乙烯醚、十二烷基聚氧乙烯醚、二壬基酚聚氧乙烯醚中的一种或任意几种组合物。7. The high-performance viscosity modifier for cement-based cementitious materials according to claim 1, wherein the alkylphenol polyoxyethylene ether is nonylphenol polyoxyethylene ether, octylphenol One or any combination of polyoxyethylene ether, lauryl polyoxyethylene ether and dinonylphenol polyoxyethylene ether. 8.根据权利要求1或7所述的用于水泥基胶凝材料的 高性能粘度改性剂，其特征在于：所述烷基酚聚氧乙烯醚为水溶性较好的OP-10、NP-10型壬基酚聚氧乙烯醚的一种或两种组合物。8. The high-performance viscosity modifier for cement-based cementitious materials according to claim 1 or 7, wherein the alkylphenol polyoxyethylene ether is OP-10, NP with better water solubility - One or two combinations of nonylphenol ethoxylate type 10. 9.一种根据权利要求1所述的用于水泥基胶凝材料的高性能粘度改性剂的使用方法，其特征在于：所述的粘度改性剂为固液组合物的水溶液，固液组合物在水溶液中的固溶量比例在5~8%，该粘度改性剂在水泥基胶凝材料中的掺量为占胶凝材料质量总和的0.6~1.0%，所述固溶质组合物的固溶量具体比例和掺量根据粘度改性剂在水泥基胶凝材料应用后流动性和保水性来确定。9. A method of using a high-performance viscosity modifier for cement-based cementitious materials according to claim 1, wherein the viscosity modifier is an aqueous solution of a solid-liquid composition, and the solid-liquid The solid solution ratio of the composition in the aqueous solution is 5~8%, the dosage of the viscosity modifier in the cement-based cementitious material is 0.6~1.0% of the total mass of the cementitious material, and the solid solute composition The specific proportion and dosage of the solid solution amount are determined according to the fluidity and water retention of the viscosity modifier after the application of the cement-based cementitious material.
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CN107640921B (en) * 2017-09-30 2019-12-24 湖北工业大学 Preparation method of highly adaptable non-alkali quick-setting agent auxiliary material
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CN103553413A (en) * 2013-09-25 2014-02-05 中国建筑材料科学研究总院 Viscosity-control type polycarboxylate superplasticizer and preparation method thereof
CN104479066A (en) * 2014-12-01 2015-04-01 中建商品混凝土有限公司 Concrete viscosity adjusting agent and preparation method thereof
CN104973817A (en) * 2015-07-06 2015-10-14 水利部交通运输部国家能源局南京水利科学研究院 Concrete viscosity regulator suitable for compatible use with polycarboxylic acid water reducer and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN103553413A (en) * 2013-09-25 2014-02-05 中国建筑材料科学研究总院 Viscosity-control type polycarboxylate superplasticizer and preparation method thereof
CN104479066A (en) * 2014-12-01 2015-04-01 中建商品混凝土有限公司 Concrete viscosity adjusting agent and preparation method thereof
CN104973817A (en) * 2015-07-06 2015-10-14 水利部交通运输部国家能源局南京水利科学研究院 Concrete viscosity regulator suitable for compatible use with polycarboxylic acid water reducer and preparation method thereof

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