CN108503258A - A kind of cement grinding aid and its application - Google Patents
A kind of cement grinding aid and its application Download PDFInfo
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- CN108503258A CN108503258A CN201710105014.3A CN201710105014A CN108503258A CN 108503258 A CN108503258 A CN 108503258A CN 201710105014 A CN201710105014 A CN 201710105014A CN 108503258 A CN108503258 A CN 108503258A
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- Prior art keywords
- cement
- grinding aid
- hydramine
- acetone
- parts
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- 239000004568 cement Substances 0.000 title claims abstract description 115
- 238000000227 grinding Methods 0.000 title claims abstract description 99
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 36
- 230000006315 carbonylation Effects 0.000 claims abstract description 35
- 238000005810 carbonylation reaction Methods 0.000 claims abstract description 35
- 239000000126 substance Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 51
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 44
- 238000010792 warming Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 229930006000 Sucrose Natural products 0.000 claims description 11
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 11
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 11
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical group [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 10
- -1 diethyl monoisopropanolamine Chemical compound 0.000 claims description 8
- 238000006277 sulfonation reaction Methods 0.000 claims description 8
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 150000001299 aldehydes Chemical class 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical class CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 239000008103 glucose Substances 0.000 claims 1
- 239000000376 reactant Substances 0.000 claims 1
- 229910052938 sodium sulfate Inorganic materials 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- WQABCVAJNWAXTE-UHFFFAOYSA-N dimercaprol Chemical compound OCC(S)CS WQABCVAJNWAXTE-UHFFFAOYSA-N 0.000 abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 abstract description 17
- 229960001051 dimercaprol Drugs 0.000 abstract description 14
- 238000003763 carbonization Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 2
- 230000036571 hydration Effects 0.000 abstract description 2
- 238000006703 hydration reaction Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 26
- 235000012207 sodium gluconate Nutrition 0.000 description 13
- 239000000203 mixture Substances 0.000 description 12
- 239000006185 dispersion Substances 0.000 description 8
- 229920005646 polycarboxylate Polymers 0.000 description 8
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 8
- 230000002411 adverse Effects 0.000 description 6
- 239000011083 cement mortar Substances 0.000 description 6
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 4
- 235000010262 sodium metabisulphite Nutrition 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000003467 diminishing effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001768 cations Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940031098 ethanolamine Drugs 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 210000004896 polypeptide structure Anatomy 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- JXAZAUKOWVKTLO-UHFFFAOYSA-L sodium pyrosulfate Chemical class [Na+].[Na+].[O-]S(=O)(=O)OS([O-])(=O)=O JXAZAUKOWVKTLO-UHFFFAOYSA-L 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
- C04B2103/52—Grinding aids; Additives added during grinding
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)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
A kind of application the invention discloses cement grinding aid and its in cement, is related to cement grinding aid field, and grinding aid of the invention includes polymerization carbonylation hydramine, dimercaprol dimercaptopropanol, slow setting component and water.Polymerization carbonization hydramine in grinding aid provided by the invention effectively inhibits traditional hydramine substance to accelerate the process of early hydration, while playing lubricating action to cement granules, can be effectively improved the compatibility of water-reducing agent and cement.
Description
Technical field
It is applied the present invention relates to a kind of cement grinding aid improving compatibility and its in cement, belongs to cement additive skill
Art field, particularly belongs to cement grinding aid production field.
Background technology
Concrete is the maximum artificial material of dosage in the world today, and cement is its important component.It is given birth in cement
A small amount of grinding aid is added during production, not only effectively reduces the energy consumption of manufacture of cement, but also the intensity of cement can be improved, oozed
Permeability etc..Cement grinding aid is easy to adsorb in cement surface, reduces particle surface free energy, reduces particle agglomeration, improves grinding
Efficiency.Therefore, grinding aid is used widely in cement production process.
But cement industry generally faces the adaptability problem of cement and water-reducing agent at present, is mainly shown as water-reducing agent pair
The function and effect of cement weaken.This is mostly derived from reason of both the composition of cement and grinding aid.For raw material composition side
Face, C in cement3A and C4The content height of AF can cause hydrated cementitious too fast, and the hydrated product of formation wraps up water-reducing agent, reduces it and subtracts
Water efficiency.From the perspective of grinding aid, on the one hand due in grinding aid contain hydramine substance, accelerate hydrated cementitious into
The hydrated product of journey, generation forms package effect to water-reducing agent, causes cement slurry fluidity loss larger, concrete slump
It loses too fast；On the other hand, grinding aid agent molecule forms competitive Adsorption with diminishing agent molecule, is also unfavorable for point of Water-reducing Admixtures To Cements
Dissipate effect.
In order to improve the compatibility of cement and admixture, effective method is to change the composition or molecule knot of water-reducing agent at present
Structure.From the composition for changing water-reducing agent, introduces new component such as starch or be easy to the silane functional of absorption, can improve and subtract
The absorption of aqua, to realize better dispersion performance；From molecular structure, such as star-like polycarboxylate water-reducer or hyperbranched poly
Object is closed, also has certain improvement to the adaptability of cement and water-reducing agent.In addition, introducing cation group in diminishing agent molecule
Amide polypeptide structure can also achieve the effect that similar.
Harmful effect of the grinding aid to cement compatibility is essentially due to hydramine substance and accelerates the aquation of cement and help
Caused by grinding agent molecule and diminishing agent molecule competitive Adsorption.Therefore improve the compatibility of cement by changing the composition of grinding aid
It is feasible.
Invention content
Application the purpose of the present invention is to provide a kind of cement grinding aid and its in cement, to solve in the prior art
Existing grinding aid and the poor problem of water reducer compatibility.
One side to achieve the above object, cement grinding aid provided by the invention use following technical scheme：
A kind of cement grinding aid, including：
Cement grinding aid according to the present invention, it is preferable that the cement grinding aid includes：8~18wt%, such as
The polymerization carbonylation hydramine of 10wt%, 12wt% or 15wt%；8~20wt%, for example, 10wt%, 15wt% or 18wt% two mercaptos
Base propyl alcohol；7~15wt%, for example, 10wt% or 12wt% slow setting component；With 55~70wt%, such as 60wt% or 65wt%
Water.In the preferred embodiment of the present invention, the slow setting group is divided into sodium gluconate and/or industrial white sugar.This hair
Bright to obtain grinding aid by the way that above-mentioned raw materials to be compounded to (mixing), detailed process is known in the art, is no longer gone to live in the household of one's in-laws on getting married here
It states, certainly, it will be appreciated by those skilled in the art that the cement grinding aid optionally can also include being commonly used in other cement grinding aids
Additive.
Cement grinding aid according to the present invention, it is preferable that the polymerization carbonylation hydramine is prepared by following steps：
1) acetone sulfonation：Sulfonating agent and water are added in reaction vessel, is hydrolyzed in 30~40 DEG C, is then added third
Ketone is warming up to the sulfonating reaction of 50~60 DEG C of progress acetone, obtains sulfonated acetone solution；
2) it polymerize：Hydramine substance is added into the sulfonated acetone solution, is warming up to 70~80 DEG C, is then gradually adding
Formaldehyde, after be warming up to 90~95 DEG C progress polymerisations, with synthesized polymer carbonylation hydramine.Preferably, first is added in step 2)
During aldehyde, temperature of reaction system is kept to be no more than 85 DEG C, to improve convergence reaction effect.
Cement grinding aid according to the present invention, it is preferable that the molecular weight of the polymerization carbonylation hydramine is 1000~2500, excellent
1500~2000 are selected, the study found that when by the molecular weight control of the polymerization carbonylation hydramine within the above range, grinding aid effect
Fruit is more preferable.
According to above-mentioned steps, it will be understood by those skilled in the art that after the polymerisation of step 2), gained polymerizate
In not only contain polymerization carbonylation hydramine, it is also so inevitable that contain water, it is preferable that institute in polymerisation products therefrom in step 2)
It states and polymerize the content of carbonylation hydramine for 20~50wt%, further preferably 30~40wt%, for example 35wt%, surplus are essentially
Water.In the present invention, due to also needing to add a certain amount of water in cement grinding aid, the above-mentioned polymerizate containing water can be with
It is directly used in the configuration cement grinding aid, without deliberately detaching the polymerization carbonylation hydramine with water therein.
Cement grinding aid according to the present invention, it is preferable that the molar ratio of the sulfonating agent and acetone is 1:1-1:9, into one
Step preferably 1:4-1:6, such as 1:2、1:5 or 1:7；The hydramine substance and the molar ratio of acetone are：1:1-3:1, into one
Step preferably 1:1-1.5:1, such as 1.2:1、1.4:1 or 2:1；The molar ratio of the formaldehyde and acetone is 1:1-5:1, further
Preferably 1:1-3:1, such as 1.5:1、2.5:1 or 4:1.
In the present invention, the sulfonating agent can be sulfonating agent commonly used in the art, it is preferable that the sulfonating agent is sulfurous
It is one or more in sour sodium, sodium pyrosulfite, sodium hydrogensulfite, such as optional two kinds of mixture；In the present invention, described
Hydramine substance can be hydramine substance commonly used in the art, it is preferable that it is three that the hydramine substance, which is hydramine substance,
It is one or more in ethanol amine, triisopropanolamine, diethyl monoisopropanolamine, such as optional two kinds of mixture.
Another aspect for achieving the above object, the present invention also provides above-mentioned cement grinding aid answering in cement
With, it is preferable that the additive amount of the cement grinding aid is the 0.05wt%-0.15wt% of cement, such as 0.1wt.
Compared with prior art, the cement grinding aid for the improvement compatibility that prepared by the present invention has the following advantages：
1, the present invention proposes in cement production process, introduces the polymerization carbonylation hydramine of synthesis to improve the compatible of cement
Property；The composition and molecular structure of grinding aid are adjusted, a kind of novel molecular structure (polymerization carbonylation hydramine) is introduced, it is right
Hydramine is carbonylated, and inhibits hydramine substance to accelerate the process of hydrated cementitious, while optimizing the absorption of grinding aid, is effectively solved
The consistency problem of cement.
2, sulfonic acid group is carried in the polymerization carbonylation hydramine molecular structure in grinding aid of the present invention, can effectively be adsorbed on band
The C of positive electricity3A and C4AF particle surfaces form clad, delay dissolving-diffusion process of cement, delay the aquation of cement, inhibit
The promotion hydration of hydramine substance, is conducive to the dispersion of Water-reducing Admixtures To Cements；
3, the polar group such as carbonyl that the polymerization carbonylation hydramine in grinding aid of the present invention carries has stronger hydrophilic interaction,
Lubricating action is played to being mutually shifted for cement granules；
4, by applying the present invention, the compatibility of cement is improved, the grinding of cement is not influenced, is conducive to its intensity hair
Exhibition.
5, in the present invention, by effectively controlling synthesis condition and corresponding raw material dosage, it can make the correlation selected
Raw material can be totally consumed substantially during the reaction, and product is nontoxic.
Specific implementation mode
Further to illustrate that the present invention is up to technological means used by predetermined purpose and effect, in fact with reference to synthesis
Applying example and application case, invention is further described in detail, but the present invention is not limited to this.
In following embodiment or comparative example, according to GB/T1346-2011《Cement normal consistency water consumption, setting time, peace
Qualitative reaction method》、GB8077-2008《Concrete admixture homogeneity experimental method》And GB/T17671-1999《Cement gel
Sand ruggedness test method》Setting time, paste flowing degree and intensity test, fluidity test are carried out respectively to cement sample
The polycarboxylate water-reducer of cement quality 0.2% is added in the process.
In following embodiment or comparative example, the content or volume are mass content or volume if not otherwise specified；Institute
If not otherwise specified with reagent, it is that analysis is pure.
In following embodiment or comparative example, the cement composition is as shown in Tables 1 and 2：
1 cement proportion of table (wt%)
| Clinker | Gypsum |
| 95 | 5 |
2 clinker chemical composition of table and mineral composition analysis (wt%)
| Loss | SiO2 | Al2O3 | Fe2O3 | CaO | MgO |
| 0.41 | 21.39 | 5.66 | 5.34 | 63.22 | 2.10 |
| f-CaO | SO3 | C3S | C2S | C3A | C4AF |
| 0.60 | 0.33 | 47.63 | 25.42 | 5.94 | 16.23 |
Embodiment 1：
Sodium sulfite 11.4g, water 260g are sequentially added in the reaction kettle with condensing reflux, are warming up to 35 DEG C, thermostatted water
30min is solved, acetone 31.5g is added, is warming up to 50 DEG C, sulfonation 30min, triethanolamine 80.8g is added, then heats to 75 DEG C,
Formaldehyde 16.3g is added dropwise, controls rate of addition, so that system temperature is no more than 85 DEG C, with the dropwise addition of formaldehyde, solution gradually becomes purple
Brown after formaldehyde is added dropwise, is warming up to 98 DEG C, isothermal reaction 5h, cooling can be obtained deep purple solution to get to containing poly-
Close the polymerizate P1 of carbonylation hydramine (polymerization carbonylation alcohol amine content is 35wt%).According to quality proportioning：20 parts of P1,20 part of two mercapto
Base propyl alcohol, 15 parts of sodium gluconates and 45 parts of water are configured to grinding aid A1；40 parts of P1,18 parts of dimercaprol dimercaptopropanol, 10 parts of industry are white
Sugar and 32 parts of water are configured to grinding aid A2.In order to protrude polymerization carbonization hydramine function and effect, by 15 parts of triethanolamines, 15 part two
The grinding aid A0 that mercaprol, 10 parts of sodium gluconates and 60 parts of water compound out is compared, and above-mentioned grinding aid is mixed water respectively
Mud, and test its performance.The cement for not mixing grinding aid is also tested simultaneously.
Experimental result is as shown in table 3.It is learnt by table 3：Compatibilities of the grinding aid A0 without polymerization carbonylation hydramine to cement
Have an adverse effect, shows as reducing initial flow degree.Compared with blank cement, heretofore described grinding aid A1 and A2 tool
Have better performance, dispersion performance of the polycarboxylate water-reducer to cement can be improved, show as initial flow degree and through when flow
Degree increases；The development for being conducive to strength of cement mortar has no significant effect the setting time of cement.
Influences of the 3 grinding aid A1 and A2 of table to cement performance
Embodiment 2：
Sodium pyrosulfite 7.5g, sodium sulfite 5g, water 260g are sequentially added in the reaction kettle with condensing reflux, are warming up to
30 DEG C, constant temperature hydrolyzes 30min, and acetone 23g is added, and is warming up to 50 DEG C, sulfonation 30min, and triethanolamine 35.4g and three isopropyls are added
Hydramine 45.4g；70 DEG C are then heated to, formaldehyde 23.7g is added dropwise, controls rate of addition, system temperature is made to be no more than 85 DEG C, with
The dropwise addition of formaldehyde, solution gradually become puce, after formaldehyde is added dropwise, are warming up to 95 DEG C, isothermal reaction 3h, cooling can obtain
To deep purple solution to get to containing polymerization carbonylation hydramine and polymerizate P2 (polymerization carbonylation alcohol amine content be 35wt%).It presses
According to quality proportioning：25 parts of P2,13 parts of dimercaprol dimercaptopropanol, 4 parts of sodium gluconates, 4 parts of industrial white sugar and 54 parts of water are configured to grinding aid
Agent A3；35 parts of P2,12 parts of dimercaprol dimercaptopropanol, 7 parts of industrial white sugar and 48 parts of water are configured to grinding aid A4.In order to protrude polymerization carbonization
The function and effect of hydramine are helped by what 15 parts of triethanolamines, 15 parts of dimercaprol dimercaptopropanol, 10 parts of sodium gluconates and 60 parts of water compounded out
Grinding agent A0 is compared, and above-mentioned grinding aid is mixed cement respectively, and test its performance.Simultaneously to do not mix the cement of grinding aid also into
Experiment is gone.
Experimental result is as shown in table 4.It is learnt by table 4：Compatibilities of the grinding aid A0 without polymerization carbonylation hydramine to cement
Have an adverse effect, shows as reducing initial flow degree.Compared with blank cement, heretofore described grinding aid A3 and A4 tool
Have better performance, dispersion performance of the polycarboxylate water-reducer to cement can be improved, show as initial flow degree and through when flow
Degree increases；The development for being conducive to strength of cement mortar has no significant effect the setting time of cement.
Influences of the 4 grinding aid A3 and A4 of table to cement performance
Embodiment 3：
Sodium pyrosulfite 8g, sodium hydrogensulfite 4.4g, water 260g are sequentially added in the reaction kettle with condensing reflux, are heated up
To 40 DEG C, constant temperature hydrolyzes 30min, and acetone 19.4g is added, and is warming up to 50 DEG C, sulfonation 30min, and triethanolamine 37.4g and two is added
Second monoisopropanolamine 40.8g then heats to 80 DEG C, and formaldehyde 30g is added dropwise, and controls rate of addition, and system temperature is made to be no more than 85
DEG C, with the dropwise addition of formaldehyde, solution gradually becomes puce, after formaldehyde is added dropwise, is warming up to 97 DEG C, isothermal reaction 4h, drop
Temperature can be obtained deep purple solution to get (polymerizeing carbonylation alcohol amine content is to the polymerizate P3 containing polymerization carbonylation hydramine
35wt%).According to quality proportioning：50 parts of P3,8 parts of dimercaprol dimercaptopropanol, 3 parts of sodium gluconates, 4 parts of industrial white sugar and 35 parts of water are matched
Grinding aid A5 is made；30 parts of P3,12 parts of dimercaprol dimercaptopropanol, 7 parts of industrial white sugar and 46 parts of water are configured to grinding aid A6.For protrusion
The function and effect of polymerization carbonization hydramine, are answered by 15 parts of triethanolamines, 15 parts of dimercaprol dimercaptopropanol, 10 parts of sodium gluconates and 60 parts of water
The grinding aid A0 allotted is compared, and above-mentioned grinding aid is mixed cement respectively, and test its performance.Simultaneously to not mixing grinding aid
Cement is also tested.
Experimental result is as shown in table 5.It is learnt by table 5：Compatibilities of the grinding aid A0 without polymerization carbonylation hydramine to cement
Have an adverse effect, shows as reducing initial flow degree.Compared with blank cement, heretofore described grinding aid A5 and A6 tool
Have better performance, dispersion performance of the polycarboxylate water-reducer to cement can be improved, show as initial flow degree and through when flow
Degree increases；The development for being conducive to strength of cement mortar has no significant effect the setting time of cement.
Influences of the 5 grinding aid A5 and A6 of table to cement performance
Embodiment 4：
Sodium pyrosulfite 14.8g, water 260g are sequentially added in the reaction kettle with condensing reflux, are warming up to 40 DEG C, constant temperature
30min is hydrolyzed, acetone 18.2g is added, is warming up to 50 DEG C, sulfonation 30min, triisopropanolamine 83.6g is added, then heats to 80
DEG C, formaldehyde 23.4g is added dropwise, controls rate of addition, so that system temperature is no more than 85 DEG C, with the dropwise addition of formaldehyde, solution gradually becomes
At puce, after formaldehyde is added dropwise, be warming up to 97 DEG C, isothermal reaction 4h, cooling can be obtained deep purple solution to get to containing
There is the polymerizate P4 of polymerization carbonylation hydramine (polymerization carbonylation alcohol amine content is 35wt%).According to quality proportioning：23 parts of P3,20 parts
Dimercaprol dimercaptopropanol, 4 parts of sodium gluconates, 4 parts of industrial white sugar and 49 parts of water are configured to grinding aid A7；28 parts of P3,15 parts of dimercaptos
Propyl alcohol, 12 parts of industrial white sugar and 45 parts of water are configured to grinding aid A8.In order to protrude the function and effect of polymerization carbonization hydramine, by 15 parts
The grinding aid A0 that triethanolamine, 15 parts of dimercaprol dimercaptopropanol, 10 parts of sodium gluconates and 60 parts of water compound out is compared, and is helped above-mentioned
Grinding agent mixes cement respectively, and tests its performance.The cement for not mixing grinding aid is also tested simultaneously.
Experimental result is as shown in table 6.It is learnt by table 6：Compatibilities of the grinding aid A0 without polymerization carbonylation hydramine to cement
Have an adverse effect, shows as reducing initial flow degree.Compared with blank cement, heretofore described grinding aid A7 and A8 tool
Have better performance, dispersion performance of the polycarboxylate water-reducer to cement can be improved, show as initial flow degree and through when flow
Degree increases；The development for being conducive to strength of cement mortar has no significant effect the setting time of cement.
Influences of the 6 grinding aid A7 and A8 of table to cement performance
Embodiment 5：
Sodium sulfite 9.0g, water 260g are sequentially added in the reaction kettle with condensing reflux, are warming up to 35 DEG C, constant temperature hydrolysis
Acetone 20.6g is added in 30min, is warming up to 50 DEG C, sulfonation 30min, and triethanolamine 79.7g is added, and then heats to 75 DEG C, drop
Add formaldehyde 10.7g, control rate of addition, so that system temperature is no more than 85 DEG C, with the dropwise addition of formaldehyde, solution gradually becomes purple brown
Color after formaldehyde is added dropwise, is warming up to 95 DEG C, isothermal reaction 5h, cooling can be obtained deep purple solution to get to containing polymerization
The polymerizate P5 of carbonylation hydramine (polymerization carbonylation alcohol amine content is 30%).According to quality proportioning：30 parts of P5,15 parts of dimercaptos third
Alcohol, 15 parts of sodium gluconates and 40 parts of water are configured to grinding aid A9；40 parts of P5,17 parts of dimercaprol dimercaptopropanol, 11 parts of industrial white sugar and
32 parts of water are configured to grinding aid A10.In order to protrude the function and effect of polymerization carbonization hydramine, by 15 parts of triethanolamines, 15 part of two mercapto
The grinding aid A0 that base propyl alcohol, 10 parts of sodium gluconates and 60 parts of water compound out is compared, and above-mentioned grinding aid is mixed cement respectively,
And test its performance.The cement for not mixing grinding aid is also tested simultaneously.
Experimental result is as shown in table 7.It is learnt by table 7：Compatibilities of the grinding aid A0 without polymerization carbonylation hydramine to cement
Have an adverse effect, shows as reducing initial flow degree.Compared with blank cement, heretofore described grinding aid A9 and A10
With better performance, dispersion performance of the polycarboxylate water-reducer to cement can be improved, show as initial flow degree and through when flow
Dynamic degree increases；The development for being conducive to strength of cement mortar has no significant effect the setting time of cement.
Influences of the 7 grinding aid A9 and A10 of table to cement performance
Embodiment 6：
Sodium sulfite 5.5g sodium pyrosulfates 8.2g, water 260g are sequentially added in the reaction kettle with condensing reflux, are warming up to
35 DEG C, constant temperature hydrolyzes 30min, and acetone 30.2g is added, and is warming up to 50 DEG C, sulfonation 30min, and diethanol monoisopropanolamine is added
84.9g then heats to 75 DEG C, and formaldehyde 31.2g is added dropwise, and controls rate of addition, so that system temperature is no more than 85 DEG C, with formaldehyde
Dropwise addition, solution gradually becomes puce, after formaldehyde is added dropwise, is warming up to 95 DEG C, isothermal reaction 5h, cooling can be obtained depth
Purple solution is to get to the polymerizate P6 (polymerization carbonylation alcohol amine content be 40%) for containing polymerization carbonylation hydramine.According to quality
Proportioning：20 parts of P6,15 parts of dimercaprol dimercaptopropanol, 15 parts of sodium gluconates and 45 parts of water are configured to grinding aid A11；30 parts of P6,17 parts
Dimercaprol dimercaptopropanol, 11 parts of industrial white sugar and 42 parts of water are configured to grinding aid A12.In order to protrude the effect effect of polymerization carbonization hydramine
Fruit, the grinding aid A0 compounded out by 15 parts of triethanolamines, 15 parts of dimercaprol dimercaptopropanol, 10 parts of sodium gluconates and 60 parts of water oppose
Than above-mentioned grinding aid being mixed cement respectively, and test its performance.The cement for not mixing grinding aid is also tested simultaneously.
Experimental result is as shown in table 8.It is learnt by table 8：Compatibilities of the grinding aid A0 without polymerization carbonylation hydramine to cement
Have an adverse effect, shows as reducing initial flow degree.Compared with blank cement, heretofore described grinding aid A9 and A10
With better performance, dispersion performance of the polycarboxylate water-reducer to cement can be improved, show as initial flow degree and through when flow
Dynamic degree increases；The development for being conducive to strength of cement mortar has no significant effect the setting time of cement.
Influences of the 8 grinding aid A11 and A12 of table to cement performance
Claims (10)
1. a kind of cement grinding aid, including：
2. cement grinding aid according to claim 1, which is characterized in that cement grinding aid, including：
3. cement grinding aid according to claim 1 or 2, which is characterized in that the polymerization carbonylation hydramine passes through following step
Suddenly it is prepared：
1) acetone sulfonation：Sulfonating agent and water are added in reaction vessel, is hydrolyzed in 30~40 DEG C, acetone is then added, is risen
Temperature obtains sulfonated acetone solution to the sulfonating reaction of 50~60 DEG C of progress acetone；
2) it polymerize：Hydramine substance is added into the sulfonated acetone solution, is warming up to 70~80 DEG C, is then gradually adding first
Aldehyde, after be warming up to 90~95 DEG C progress polymerisations, with synthesized polymer carbonylation hydramine.
4. cement grinding aid according to claim 3, which is characterized in that in step 2) described in polymerisation products therefrom
The content for polymerizeing carbonylation hydramine is 20~50wt%, preferably 30~40wt%.
5. method according to claim 3 or 4, which is characterized in that during formaldehyde is added in step 2), keep reactant
It is that temperature is no more than 85 DEG C.
6. according to the method described in any one of claim 3-5, which is characterized in that the molar ratio of the sulfonating agent and acetone is
1:1-1:9, the molar ratio of hydramine substance and acetone is：1:1-3:1, the molar ratio of formaldehyde and acetone is 1:1-5:1；
Preferably, the molar ratio of the sulfonating agent and acetone is 1:4-1:6, the molar ratio of hydramine substance and acetone is：1:1-
1.5:1, the molar ratio of formaldehyde and acetone is 1:1-3:1.
7. the method according to any one of claim 3~6, which is characterized in that the sulfonating agent is sodium sulfite, Jiao Ya
It is one or more in sodium sulphate, sodium hydrogensulfite；The hydramine substance is that hydramine substance is triethanolamine, three isopropanols
It is one or more in amine, diethyl monoisopropanolamine.
8. according to the cement grinding aid described in any one of claim 1-7, which is characterized in that point of the polymerization carbonylation hydramine
Son amount is 1000~2500, preferably 1500~2000.
9. according to the cement grinding aid described in any one of claim 1-8, which is characterized in that the slow setting group is divided into glucose sugar
Sour sodium and/or industrial white sugar.
10. application of the cement grinding aid according to any one of claim 1-9 in cement；Preferably, the cement
The additive amount of grinding aid is the 0.05wt%-0.15wt% of cement.
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| CN113354330A (en) * | 2021-08-09 | 2021-09-07 | 湖南大学 | Preparation method of activated grinding aid for concrete composite admixture |
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