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 PDFInfo
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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
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- solid
- gelling material
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- 239000004034 viscosity adjusting agent Substances 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000004568 cement Substances 0.000 title claims abstract description 25
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 29
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 29
- 239000000138 intercalating agent Substances 0.000 claims abstract description 23
- 239000000178 monomer Substances 0.000 claims abstract description 19
- -1 Alkyl phenol Chemical compound 0.000 claims abstract description 16
- 125000002091 cationic group Chemical group 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000006104 solid solution Substances 0.000 claims abstract description 11
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 230000002687 intercalation Effects 0.000 claims abstract description 4
- 238000009830 intercalation Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 15
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 13
- 239000002202 Polyethylene glycol Substances 0.000 claims description 13
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 13
- 229920001223 polyethylene glycol Polymers 0.000 claims description 13
- 239000004317 sodium nitrate Substances 0.000 claims description 13
- 235000010344 sodium nitrate Nutrition 0.000 claims description 13
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 11
- 235000011152 sodium sulphate Nutrition 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 9
- 229920001451 polypropylene glycol Polymers 0.000 claims description 9
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 7
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 claims description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical class [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 3
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 2
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 claims description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 2
- 235000011009 potassium phosphates Nutrition 0.000 claims description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 2
- 235000011151 potassium sulphates Nutrition 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- 235000011008 sodium phosphates Nutrition 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 235000019441 ethanol Nutrition 0.000 claims 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 11
- 239000011707 mineral Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 4
- 230000003321 amplification Effects 0.000 abstract description 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 description 16
- 239000004567 concrete Substances 0.000 description 15
- 239000002562 thickening agent Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000740 bleeding effect Effects 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 5
- 239000010954 inorganic particle Substances 0.000 description 5
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229920005646 polycarboxylate Polymers 0.000 description 3
- 239000004971 Cross linker Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000012496 blank sample Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000003335 steric effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JKTAIYGNOFSMCE-UHFFFAOYSA-N 2,3-di(nonyl)phenol Chemical compound CCCCCCCCCC1=CC=CC(O)=C1CCCCCCCCC JKTAIYGNOFSMCE-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- AJXBTRZGLDTSST-UHFFFAOYSA-N amino 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)ON AJXBTRZGLDTSST-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
Landscapes
- 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
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. a kind of high-performance viscosity modifier for cement-based gelling material, it is characterised in that: the viscosity modifier is
The aqueous solution of solid-liquid combination object, solid-liquid combination object gross mass are 100 parts, and the solid-liquid combination object contains following weight parts component
Raw material:
Phosphorous acid group, sulfate radical, nitrate anion salt intercalator: 65-75 parts；
Containing-CH2-OH、-CH(CH3)-OH minor comonomer or polymer organic intercalation agent: 10-20 parts；
Cationic monomer containing-CO-NH-, the minor comonomer of-NH- or polymer: 10-20 parts；
Alkyl phenol polyoxyethylene ether: 5-15 parts.
2. the high-performance viscosity modifier according to claim 1 for cement-based gelling material, it is characterised in that: institute
The salt intercalator stated is the salt compounds of phosphorous acid group, sulfate radical, nitrate anion, i.e. sodium phosphate, potassium phosphate, sodium nitrate, nitre
Sour potassium, sodium sulphate, any several compositions in potassium sulfate.
3. the high-performance viscosity modifier according to claim 1 or 2 for cement-based gelling material, it is characterised in that:
The salt intercalator is the mixture of sodium nitrate and sodium sulphate that mass ratio is 1:1.
4. the high-performance viscosity modifier according to claim 1 for cement-based gelling material, it is characterised in that: described
Organic intercalator be containing-CH2-OH、-CH(CH3)-OH minor comonomer or polymer, i.e. triethanolamine, triisopropanolamine, two
One of ethyl alcohol monoisopropanolamine, polyethylene glycol, polypropylene glycol or any several compositions.
5. the high-performance viscosity modifier according to claim 1 or 4 for cement-based gelling material, it is characterised in that:
The organic intercalator is one or two kinds of compositions of the polyethylene glycol of molecular weight 400 ~ 1000, polypropylene glycol.
6. the high-performance viscosity modifier according to claim 1 for cement-based gelling material, it is characterised in that: described
Cationic monomer be minor comonomer or polymer containing-CO-NH- ,-NH-, i.e., acryloyloxyethyl trimethyl ammonium chloride,
Acrylamide, n,N-Dimethylformamide, n,N-dimethylacetamide, erucyl amide, stearic amide, in polyacrylamide
One or any of several composition.
7. the high-performance viscosity modifier according to claim 1 for cement-based gelling material, it is characterised in that: described
Alkyl phenol polyoxyethylene ether be nonylphenol polyoxyethylene ether, octyl phenol polyoxyethylene ether, dodecyl polyoxyethylene ether, two nonyls
One of base phenol polyethenoxy ether or any several compositions.
8. the high-performance viscosity modifier according to claim 1 or claim 7 for cement-based gelling material, it is characterised in that:
The alkyl phenol polyoxyethylene ether is one or two kinds of groups of water-soluble preferable OP-10, NP-10 type nonylphenol polyoxyethylene ether
Close object.
9. a kind of application method of the high-performance viscosity modifier according to claim 1 for cement-based gelling material,
It is characterized by: the viscosity modifier is the aqueous solution of solid-liquid combination object, the solid solution capacity of solid-liquid combination object in aqueous solution
Ratio 5 ~ 8%, volume of the viscosity modifier in cement-based gelling material be account for cementitious material quality summation 0.6 ~
1.0%, the specific ratio of solid solution capacity and volume of the solid solution matter composition are according to viscosity modifier in cement-based gelling material application
Mobility and water-retaining property determine afterwards.
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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 |
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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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