CN110436815A - A kind of low-temperature stabilization type concrete pump-feed agent - Google Patents
A kind of low-temperature stabilization type concrete pump-feed agent Download PDFInfo
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- CN110436815A CN110436815A CN201910724257.4A CN201910724257A CN110436815A CN 110436815 A CN110436815 A CN 110436815A CN 201910724257 A CN201910724257 A CN 201910724257A CN 110436815 A CN110436815 A CN 110436815A
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- 239000004567 concrete Substances 0.000 title claims abstract description 64
- 230000006641 stabilisation Effects 0.000 title claims abstract description 21
- 238000011105 stabilization Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 140
- 238000002156 mixing Methods 0.000 claims abstract description 74
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 51
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 21
- 239000011669 selenium Substances 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000944 linseed oil Substances 0.000 claims abstract description 13
- 235000021388 linseed oil Nutrition 0.000 claims abstract description 13
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims abstract description 8
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940080314 sodium bentonite Drugs 0.000 claims abstract description 8
- 229910000280 sodium bentonite Inorganic materials 0.000 claims abstract description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000010792 warming Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 22
- 230000000996 additive effect Effects 0.000 claims description 22
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000003054 catalyst Substances 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 17
- 238000009792 diffusion process Methods 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 14
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 239000012141 concentrate Substances 0.000 claims description 12
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 12
- 238000005119 centrifugation Methods 0.000 claims description 8
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 7
- 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 7
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 7
- 239000004359 castor oil Substances 0.000 claims description 7
- 235000019438 castor oil Nutrition 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000009514 concussion Effects 0.000 claims description 7
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 7
- 239000000787 lecithin Substances 0.000 claims description 7
- 229940067606 lecithin Drugs 0.000 claims description 7
- 235000010445 lecithin Nutrition 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 6
- 229910021577 Iron(II) chloride Inorganic materials 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- AZZSPOIDZDRHNB-UHFFFAOYSA-M [Se].[Cl-].C1(=CC=CC=C1)[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1 Chemical compound [Se].[Cl-].C1(=CC=CC=C1)[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1 AZZSPOIDZDRHNB-UHFFFAOYSA-M 0.000 claims description 6
- 235000019270 ammonium chloride Nutrition 0.000 claims description 6
- WDODWFPDZYSKIA-UHFFFAOYSA-N benzeneselenol Chemical compound [SeH]C1=CC=CC=C1 WDODWFPDZYSKIA-UHFFFAOYSA-N 0.000 claims description 6
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 6
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical class C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 claims description 6
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims description 6
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 6
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 6
- 239000004200 microcrystalline wax Substances 0.000 claims description 6
- 235000019808 microcrystalline wax Nutrition 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 6
- 229920005646 polycarboxylate Polymers 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- 238000002390 rotary evaporation Methods 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000001509 sodium citrate Substances 0.000 claims description 6
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 6
- 235000010288 sodium nitrite Nutrition 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 229960001763 zinc sulfate Drugs 0.000 claims description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 239000008159 sesame oil Substances 0.000 claims description 2
- 235000011803 sesame oil Nutrition 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 3
- 238000005086 pumping Methods 0.000 abstract description 11
- 239000002244 precipitate Substances 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 150000003346 selenoethers Chemical class 0.000 abstract description 5
- -1 iron ion Chemical class 0.000 abstract description 3
- 229910021645 metal ion Inorganic materials 0.000 abstract description 3
- 230000001376 precipitating effect Effects 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000013019 agitation Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- 230000036571 hydration Effects 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000012615 aggregate Substances 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 229940092782 bentonite Drugs 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000005809 transesterification reaction 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of low-temperature stabilization type concrete pump-feed agents, belong to concrete pump-feed agent field.The present invention is modified linseed oil structure, increases the compatible and mobile performance between each component, carries out phase transfer compared with small molecular alcohol with pentaerythrite etc. and has an effect with acrylic acid, dispersion and mobility are kept at low temperature, it avoids precipitating crystal under cryogenic, precipitates, cause line clogging；The material containing selenium of addition can react under low temperature with institute's metal ion in the systems such as iron ion, generate metal selenide, in pumping procedure, metal selenide thin film is longitudinally formed in pipeline, avoid occur pipeline obstruction, improve internal composition between infiltration dispersion effect, to sodium bentonite and diatomite mixing, access it is sulfhydryl modified, slump can also be suitably adjusted, stablizes and pumping effect is provided.The present invention solves the common poor fluidity of concrete pump-feed agent at low temperature at present, easily precipitates crystal, precipitates, and the problem that slump-loss is too fast.
Description
Technical field
The invention belongs to concrete pump-feed agent technical fields, and in particular to a kind of low-temperature stabilization type concrete pump-feed agent.
Background technique
Concrete (concrete) is one of the present age most important construction material, it is by cementing material, gather materials, aggregate and
Water is prepared by a certain percentage, agitated molding of vibrating, artificial stone made of conserving under certain condition.The concrete usually said
Refer to and make cementitious material with cement, sand, masonry gather materials, and cooperate by a certain percentage with water, water obtained by agitated, molding, maintenance
Cement concrete, also referred to as normal concrete.The characteristics of concrete has abundant raw material, cheap, simple production process, simultaneously also
With the features such as compression strength height, durability is good, and strength grade range is wide, it is widely used in civil engineering.In concrete works
In work progress, the transport of concrete and to pour be a heavy, critical job.It requires rapid, timely, guarantee matter
Amount and reduction labour expenditure.This seems further in modern concrete engineering with the characteristics of by large-scale, high-rise and more complexity
It is important.Then, Concrete Pumping Construction technology is come into being, and one of the mark for having become modern concrete.Pumped concrete
The mix-design of soil be unable to do without additive, and wherein pumping admixture is undoubtedly most common one kind.To guarantee coagulation in pumping procedure
The workability and mobility of soil need that pumping admixture is added in concrete.Pumping admixture can improve concrete mix pump-conveying property
Additive is known as pumping admixture, also known as concrete pump-feed agent.So-called pump-conveying property is exactly that concrete mix has and can smoothly lead to
Conveyance conduit is crossed, do not block, isolate, the good performance of visco-plasticity.However the speed of cement aquation is removed and concrete sheet
Body composition material and match ratio have outside the Pass, also closely related with ambient temperature.Hydration is accelerated when the temperature increases, and intensity increases
Long to accelerate, and when temperature is reduced to 0 DEG C and spends, some starts to freeze the water being present in concrete, gradually by liquid phase
(water) becomes solid phase (ice), and the water at this moment participating in cement aquation reduces, and hydration slows down, and gain in strength mutually strains
Slowly.Temperature continues to reduce, when the water being present in concrete becomes ice completely, that is, becomes solid phase by liquid phase completely, water
Mud hydration stops substantially, and the intensity of concrete will not increase again at this time.Volume about increases 9% after becoming ice due to water, together
When generate about 2.5MPa swelling stress, this stress commonly greater than concrete inside formed initial intensity value, make coagulation
Soil is by different degrees of destruction (i.e. early freezc destruction).In addition, after water becomes ice, it can also be on aggregate and rebar surface
The biggish ice slush of particle is generated, the cohesive force of cement slurry and aggregate and reinforcing bar is weakened.It, can also be in concrete after ice slush melts
Portion forms various gaps, and reduces the durability of concrete.Many scholars at home and abroad have carried out greatly the concrete of winter construction
The test of amount, the results showed that before hydration stopping occurs for cement in concrete of enduring cold, concrete is made to reach a minimum
(China is defined as 30% not less than design strength and not less than 3.5MPa) critical intensity, and concrete can be made to be not subjected to freeze
Evil, final strength do not incur loss.So extending the liquid form of water in concrete, being allowed to have ample time occurs with cement
Hydration reaction, the minimum critical intensity for reaching concrete and the content for reducing Free water in concrete prevent freeze injury of concrete
It is crucial.Concrete pump-feed agent currently on the market generally mostly uses one-component water-reducing agent and retarder to be formulated, thus exists
Following disadvantage: inferior suitability is typically only capable to adapt to a small number of cement types, and mobility is bad, is precipitated under the conditions of winter low temperature
Crystal, precipitating, cause line clogging, can not normal use, meanwhile, quality is extremely unstable, and slump-loss is fast.
Summary of the invention
The technical problems to be solved by the invention: commonly using the poor fluidity of concrete pump-feed agent at low temperature for current,
It easily precipitates crystal, precipitate, and the problem that slump-loss is too fast, a kind of low-temperature stabilization type concrete pump-feed agent is provided.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of low-temperature stabilization type concrete pump-feed agent, according to the mass fraction, including following component: 2 ~ 5 parts of polyethylene glycol, 1 ~ 3 part
Polycarboxylate water-reducer TH-925,2 ~ 5 parts of ethylene bis stearic acid amides, 1 ~ 4 part of retarder, 1 ~ 4 part of antifreezing agent, further includes: 25 ~ 50
Part composite diffusion makees materials, 12 ~ 20 parts of compound guarantors are collapsed material.
The composite diffusion makees the preparation method of materials, includes the following steps:
(1) it in 20 ~ 35 DEG C, takes linseed oil 10 ~ 20:3 in mass ratio that glycerol is added and is mixed, be warming up to 40 ~ 55 DEG C, be added sub-
The trimethylolpropane of sesame oil quality 30 ~ 50% is mixed, and is passed through nitrogen protection, is warming up to 210 ~ 220 DEG C, and heat preservation must react
Material takes reactant 110 ~ 150:1 in mass ratio ~ 3 that catalyst mixing is added, cooling in 220 ~ 230 DEG C of insulated and stirreds, must disperse
Expect A；
(2) in 25 ~ 35 DEG C, 1:5 ~ 8 take alcohol material, water mixing in mass ratio, are warming up to 70 ~ 85 DEG C, are stirred, obtain mixed liquor,
It takes acrylic acid 3:14 ~ 20:1 in mass ratio that mixed liquor, lecithin mixing is added, is warming up to 80 ~ 90 DEG C, is stirred, it is naturally cold
But to room temperature, concentration is vacuumized, concentrate is obtained, take concentrate object 10 ~ 15:1 in mass ratio that sodium hydroxide solution is added, stirring is mixed
Close, obtain disperse materials B, according to the mass fraction, take 30 ~ 45 parts of disperse materials A, 12 ~ 25 parts of disperse materials B, 3 ~ 6 parts of material containing selenium, 2 ~ 5 parts it is auxiliary
Material, 1 ~ 4 part of FeCl3, 1 ~ 4 part of FeCl2, 15 ~ 25 parts of sodium carbonate liquors be mixed, in 50 ~ 70 DEG C of rotary evaporations to get compound
Peptizaiton material.
Catalyst in the step (1): 3 ~ 7:1 in mass ratio takes lithium hydroxide, ferrocene mixing to get catalyst.
Alcohol material in the step (2): 1:2 ~ 5:10 in mass ratio takes pentaerythrite, isopropanol, dehydrated alcohol mixing, i.e.,
Obtain alcohol material.
Material containing selenium in the step (2): 2 ~ 4:1 in mass ratio takes selenophenol, the mixing of tetraphenylphosphonium chloride selenium to get containing selenium
Material.
Auxiliary material in the step (2): 1:2 ~ 5:1 in mass ratio takes castor oil, stearic amide, microcrystalline wax mixing,
Up to auxiliary material.
The compound preparation for protecting the material that collapses: 4 ~ 8:3 in mass ratio takes sodium bentonite, diatomite mixed grinding, must grind
Material takes abrasive 1:16 in mass ratio ~ 20 that ammonium chloride solution mixing is added, and in 35 ~ 60 DEG C, ultrasonic treatment obtains disperse materials, takes point
Mercaptoethylmaine mixing concussion is added in bulk cargo 20 ~ 30:1 in mass ratio, and centrifugation is collected centrifugation object and is washed with water, dry, obtains drying
Object takes dried object 20 ~ 35:1 in mass ratio that additive mixing is added and protects the material that collapses to get compound.
The additive: 2:3 ~ 7 take cetyl trimethylammonium bromide, polyvinyl alcohol to get addition in mass ratio
Agent.
The antifreezing agent: 1:4 ~ 8:1 in mass ratio takes ethylene glycol, methanol, sodium nitrite mixing to get antifreezing agent.
The retarder: 3 ~ 6:1:1 ~ 4 take sodium citrate, zinc sulfate, wooden sodium sulfonate's mixing to get slow setting in mass ratio
Agent.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention occurs nucleophilic displacement of fluorine through catalysis and carries out alcoholysis, urge with linseed oil, glycerol, trimethylolpropane etc. for raw material
Lithium hydroxide in agent with strong basicity has the ability for capturing proton, then intermediate by reaction generation with the glyceride of generation
The process of body ketenes ion transesterification may make internal polarity matrix and non-while being modified to linseed oil structure
Polar group reasonable branch to a certain extent is conducive to the increase of internal steric hindrance, reduces the reunion occurred between component, also,
Contained grease, castor oil have greasy property, can increase the compatible and mobile performance between each component, with pentaerythrite etc. compared with
Small molecular alcohol carries out the role of phase transfer, and has an effect with acrylic acid, constitutes the active material of oligomeric small molecule, and institute is negatively charged
Lotus can be conducive to that the dispersion effect that its charge is positive and negative, inside stabilization can be changed in Inner Constitution electric double layer, and what is be added has
Amphiphilic Lecithin Content, adjustable internal charge enable its molecule occur to each other so that partial charge is uneven
Repulsive interaction, biggish repulsion to disperse between component, can keep stable dispersion and mobility at low temperature, avoid in the winter
It precipitates crystal, precipitate under season cryogenic conditions, cause line clogging；
(2) material containing selenium that adds of the present invention can react under low temperature with institute's metal ion in the systems such as iron ion,
Metal selenide is generated, metal selenide thin film can be longitudinally formed in pipeline in pumping procedure, lubrication is played, reduces stream
The effect of dynamic resistance can be avoided the obstruction that pipeline occurs, and improve the infiltration dispersion effect between internal composition, cooperate subsequent slow
It coagulates, protect the action component that collapses, can effectively reinforce the effect of pumping, ensure the mobility under low temperature, avoid the generation of precipitating, and can be steady
Surely slump is kept, and it is sulfhydryl modified mixing, accessing to sodium bentonite and diatomite, so that side of the mercaptoethylmaine to lie down
Formula enters interlayer or is adsorbed on earth material surface, and the partial cation of interlayer can be substituted, and additive therefor can also play slotting
Layer effect can also suitably adjust slump so that the gravitation reduction of interlayer causes its structure that slight collapsing and removing occurs,
Raising acts on the workability after concrete, stablizes and provides pumping effect；
(3) present invention improves the dispersibility of internal composition, and pass through lubricating action promotion by being modified to oil components
Mobility is constituted metal selenide thin film with the bind metal ion of material containing selenium, is played the role of lubrication and is improved mobility, and to sodium
Base bentonite, diatomite carry out sulfhydrylation etc. and are modified to stablize slump, and the present invention exists for common concrete pump-feed agent at present
Poor fluidity under low temperature is easily precipitated crystal, is precipitated, and the problem that slump-loss is too fast, and improvement is significant, is had very
Good application prospect.
Specific embodiment
Catalyst: 3 ~ 7:1 in mass ratio takes lithium hydroxide, ferrocene mixing to get catalyst.
Material containing selenium: 2 ~ 4:1 in mass ratio takes selenophenol, the mixing of tetraphenylphosphonium chloride selenium to get material containing selenium.
Alcohol material: 1:2 ~ 5:10 in mass ratio takes pentaerythrite, isopropanol, dehydrated alcohol mixing to get alcohol material.
Auxiliary material: 1:2 ~ 5:1 in mass ratio takes castor oil, stearic amide, microcrystalline wax mixing to get auxiliary material.
Antifreezing agent: 1:4 ~ 8:1 in mass ratio takes ethylene glycol, methanol, sodium nitrite mixing to get antifreezing agent.
Retarder: 3 ~ 6:1:1 ~ 4 take sodium citrate, zinc sulfate, wooden sodium sulfonate's mixing to get retarder in mass ratio.
Additive: 2:3 ~ 7 take cetyl trimethylammonium bromide, polyvinyl alcohol to get additive in mass ratio.
Composite diffusion makees the preparation method of materials, includes the following steps:
(1) in 20 ~ 35 DEG C, take linseed oil 10 ~ 20:3 in mass ratio that glycerol mixing is added, with 400 ~ 700r/min magnetic agitation 40
~ 60min is warming up to 40 ~ 55 DEG C, and 25 ~ 45min is mixed in the trimethylolpropane that flax oil quality 30 ~ 50% is added, and is passed through
Nitrogen protection is warming up to 210 ~ 220 DEG C, keeps the temperature 25 ~ 50min, obtains reaction material, and reactant 110 ~ 150:1 ~ 3 in mass ratio is taken to add
Enter catalyst mixing, in 220 ~ 230 DEG C of 1 ~ 3h of insulated and stirred, cooled to room temperature obtains disperse materials A；
(2) in 25 ~ 35 DEG C, 1:5 ~ 8 take alcohol material, water mixing in mass ratio, are warming up to 70 ~ 85 DEG C, are stirred 20 ~ 45min, obtain
Mixed liquor takes acrylic acid 3:14 ~ 20:1 in mass ratio that mixed liquor, lecithin mixing is added, is warming up to 80 ~ 90 DEG C, is stirred,
Cooled to room temperature vacuumizes concentration, obtains concentrate, takes concentrate object 10 ~ 15:1 in mass ratio that mass fraction is added
For 20% sodium hydroxide solution, be stirred 30 ~ 50min, obtain disperse materials B, according to the mass fraction, take 30 ~ 45 parts of disperse materials A,
12 ~ 25 parts of disperse materials B, 3 ~ 6 parts of material containing selenium, 2 ~ 5 parts of auxiliary materials, 1 ~ 4 part of FeCl3, 1 ~ 4 part of FeCl2, 15 ~ 25 parts of mass fractions be
20% sodium carbonate liquor is mixed in reaction kettle, with 500 ~ 800r/min, 40 ~ 60min of magnetic agitation, in 50 ~ 70 DEG C of rotary evaporations
30 ~ 45% to original volume make materials to get composite diffusion.
Compound guarantor is collapsed the preparation of material: 4 ~ 8:3 in mass ratio takes sodium bentonite, diatomite to mix in mortar, with 350 ~
550r/min grinds 2 ~ 4h, obtains abrasive, takes abrasive 1:16 in mass ratio ~ 20 that the ammonium chloride that mass fraction is 15% is added molten
Liquid mixing, in ultrasonic oscillation instrument with 35 ~ 60 DEG C of temperature, 50 ~ 65kHz frequency ultrasound handles 15 ~ 25min, obtains disperse materials, takes point
Bulk cargo 20 ~ 30:1 in mass ratio be added mercaptoethylmaine mixing, with 200 ~ 250r/min concussion 20 ~ for 24 hours after, move to centrifuge, with
3000 ~ 5000r/min is centrifuged 12 ~ 20min, collects after centrifugation object is washed with water 2 ~ 4 times, moves to baking oven, in 65 ~ 80 DEG C dry 2 ~
4h obtains dried object, and taking dried object 20 ~ 35:1 to be in mass ratio added, additive is uniformly mixed to protect the material that collapses to get compound.
A kind of low-temperature stabilization type concrete pump-feed agent, according to the mass fraction, including following component: 2 ~ 5 parts of polyethylene glycol, 1 ~
3 parts of polycarboxylate water-reducer TH-925,2 ~ 5 parts of ethylene bis stearic acid amides, 1 ~ 4 part of retarder, 1 ~ 4 part of antifreezing agent, 25 ~ 50 parts it is multiple
Close peptizaiton material, 12 ~ 20 parts of compound guarantors are collapsed material.
Embodiment 1
Catalyst: 3:1 in mass ratio takes lithium hydroxide, ferrocene mixing to get catalyst.
Material containing selenium: 2:1 in mass ratio takes selenophenol, the mixing of tetraphenylphosphonium chloride selenium to get material containing selenium.
Alcohol material: 1:2:10 in mass ratio takes pentaerythrite, isopropanol, dehydrated alcohol mixing to get alcohol material.
Auxiliary material: 1:2:1 in mass ratio takes castor oil, stearic amide, microcrystalline wax mixing to get auxiliary material.
Antifreezing agent: 1:4:1 in mass ratio takes ethylene glycol, methanol, sodium nitrite mixing to get antifreezing agent.
Retarder: 3:1:1 in mass ratio takes sodium citrate, zinc sulfate, wooden sodium sulfonate's mixing to get retarder.
Additive: 2:3 in mass ratio takes cetyl trimethylammonium bromide, polyvinyl alcohol to get additive.
Composite diffusion makees the preparation method of materials, includes the following steps:
(1) it in 20 DEG C, takes linseed oil 10:3 in mass ratio that glycerol mixing is added, with 400r/min magnetic agitation 40min, is warming up to
40 DEG C, 25min is mixed in the trimethylolpropane that flax oil quality 30% is added, and is passed through nitrogen protection, is warming up to 210 DEG C, protects
Warm 25min, obtains reaction material, takes reactant 110:1 in mass ratio that catalyst mixing is added, naturally cold in 220 DEG C of insulated and stirred 1h
But to room temperature, disperse materials A is obtained；
(2) in 25 DEG C, 1:5 in mass ratio takes alcohol material, water mixing, is warming up to 70 DEG C, is stirred 20min, obtain mixed liquor, takes third
Mixed liquor, lecithin mixing is added in olefin(e) acid 3:14:1 in mass ratio, is warming up to 80 DEG C, is stirred, and cooled to room temperature is taken out
Vacuum concentration processing, obtains concentrate, takes concentrate object 10:1 in mass ratio that the sodium hydroxide solution that mass fraction is 20% is added,
It is stirred 30min, obtains disperse materials B, according to the mass fraction, takes 30 parts of disperse materials A, 12 parts of disperse materials B, 3 parts of material containing selenium, 2 parts
Auxiliary material, 1 part of FeCl3, 1 part of FeCl2, 15 parts of mass fractions be 20% sodium carbonate liquor mixed in reaction kettle, with 500r/min magnetic
Power stirs 40min, makees materials in 50 DEG C of rotary evaporations to the 30% of original volume to get composite diffusion.
The compound preparation for protecting the material that collapses: 4:3 in mass ratio takes sodium bentonite, diatomite to mix in mortar, with 350r/min
2h is ground, abrasive is obtained, takes abrasive 1:16 in mass ratio that the ammonium chloride solution that mass fraction is 15% is added and mixes, Yu Chaosheng
For wave concussion instrument with 35 DEG C of temperature, 50kHz frequency ultrasound handles 15min, obtains disperse materials, takes disperse materials 20:1 in mass ratio that mercapto is added
The mixing of base ethamine moves to centrifuge after shaking 20h with 200r/min, is centrifuged 12min with 3000r/min, collects centrifugation object water
After washing 2 times, baking oven is moved to, in 65 DEG C of dry 2h, obtains dried object, takes dried object 20:1 in mass ratio that additive mixing is added equal
It is even to protect the material that collapses to get compound.
A kind of low-temperature stabilization type concrete pump-feed agent, according to the mass fraction, including following component: 2 parts of polyethylene glycol, 1 part
Polycarboxylate water-reducer TH-925,2 parts of ethylene bis stearic acid amides, 1 part of retarder, 1 part of antifreezing agent, 25 parts of composite diffusion effects
Material, 12 parts of compound guarantors are collapsed material.
Embodiment 2
Catalyst: 7:1 in mass ratio takes lithium hydroxide, ferrocene mixing to get catalyst.
Material containing selenium: 4:1 in mass ratio takes selenophenol, the mixing of tetraphenylphosphonium chloride selenium to get material containing selenium.
Alcohol material: 1:5:10 in mass ratio takes pentaerythrite, isopropanol, dehydrated alcohol mixing to get alcohol material.
Auxiliary material: 1:5:1 in mass ratio takes castor oil, stearic amide, microcrystalline wax mixing to get auxiliary material.
Antifreezing agent: 1:8:1 in mass ratio takes ethylene glycol, methanol, sodium nitrite mixing to get antifreezing agent.
Retarder: 6:1:4 in mass ratio takes sodium citrate, zinc sulfate, wooden sodium sulfonate's mixing to get retarder.
Additive: 2:7 in mass ratio takes cetyl trimethylammonium bromide, polyvinyl alcohol to get additive.
Composite diffusion makees the preparation method of materials, includes the following steps:
(1) it in 35 DEG C, takes linseed oil 20:3 in mass ratio that glycerol mixing is added, with 700r/min magnetic agitation 60min, is warming up to
55 DEG C, 45min is mixed in the trimethylolpropane that flax oil quality 50% is added, and is passed through nitrogen protection, is warming up to 220 DEG C, protects
Warm 50min, obtains reaction material, takes reactant 150:3 in mass ratio that catalyst mixing is added, naturally cold in 230 DEG C of insulated and stirred 3h
But to room temperature, disperse materials A is obtained；
(2) in 35 DEG C, 1:8 in mass ratio takes alcohol material, water mixing, is warming up to 85 DEG C, is stirred 45min, obtain mixed liquor, takes third
Mixed liquor, lecithin mixing is added in olefin(e) acid 3:20:1 in mass ratio, is warming up to 90 DEG C, is stirred, and cooled to room temperature is taken out
Vacuum concentration processing, obtains concentrate, takes concentrate object 15:1 in mass ratio that the sodium hydroxide solution that mass fraction is 20% is added,
It is stirred 50min, obtains disperse materials B, according to the mass fraction, takes 45 parts of disperse materials A, 25 parts of disperse materials B, 6 parts of material containing selenium, 5 parts
Auxiliary material, 4 parts of FeCl3, 4 parts of FeCl2, 25 parts of mass fractions be 20% sodium carbonate liquor mixed in reaction kettle, with 800r/min magnetic
Power stirs 60min, makees materials in 70 DEG C of rotary evaporations to the 45% of original volume to get composite diffusion.
The compound preparation for protecting the material that collapses: 8:3 in mass ratio takes sodium bentonite, diatomite to mix in mortar, with 550r/min
4h is ground, abrasive is obtained, takes abrasive 1:20 in mass ratio that the ammonium chloride solution that mass fraction is 15% is added and mixes, Yu Chaosheng
Wave concussion instrument is handled 25min, is obtained disperse materials with temperature 60 C, 65kHz frequency ultrasound, takes disperse materials 30:1 in mass ratio that mercapto is added
The mixing of base ethamine moves to centrifuge after 250r/min concussion for 24 hours, is centrifuged 20min with 5000r/min, collects centrifugation object water
After washing 4 times, baking oven is moved to, in 80 DEG C of dry 4h, obtains dried object, takes dried object 35:1 in mass ratio that additive mixing is added equal
It is even to protect the material that collapses to get compound.
A kind of low-temperature stabilization type concrete pump-feed agent, according to the mass fraction, including following component: 5 parts of polyethylene glycol, 3 parts
Polycarboxylate water-reducer TH-925,5 parts of ethylene bis stearic acid amides, 4 parts of retarder, 4 parts of antifreezing agents, 50 parts of composite diffusion effects
Material, 20 parts of compound guarantors are collapsed material.
Embodiment 3
Catalyst: 5:1 in mass ratio takes lithium hydroxide, ferrocene mixing to get catalyst.
Material containing selenium: 3:1 in mass ratio takes selenophenol, the mixing of tetraphenylphosphonium chloride selenium to get material containing selenium.
Alcohol material: 1:3:10 in mass ratio takes pentaerythrite, isopropanol, dehydrated alcohol mixing to get alcohol material.
Auxiliary material: 1:3:1 in mass ratio takes castor oil, stearic amide, microcrystalline wax mixing to get auxiliary material.
Antifreezing agent: 1:6:1 in mass ratio takes ethylene glycol, methanol, sodium nitrite mixing to get antifreezing agent.
Retarder: 5:1:3 in mass ratio takes sodium citrate, zinc sulfate, wooden sodium sulfonate's mixing to get retarder.
Additive: 2:5 in mass ratio takes cetyl trimethylammonium bromide, polyvinyl alcohol to get additive.
Composite diffusion makees the preparation method of materials, includes the following steps:
(1) it in 25 DEG C, takes linseed oil 15:3 in mass ratio that glycerol mixing is added, with 500r/min magnetic agitation 50min, is warming up to
45 DEG C, 35min is mixed in the trimethylolpropane that flax oil quality 40% is added, and is passed through nitrogen protection, is warming up to 215 DEG C, protects
Warm 30min, obtains reaction material, takes reactant 120:2 in mass ratio that catalyst mixing is added, naturally cold in 225 DEG C of insulated and stirred 2h
But to room temperature, disperse materials A is obtained；
(2) in 30 DEG C, 1:7 in mass ratio takes alcohol material, water mixing, is warming up to 75 DEG C, is stirred 35min, obtain mixed liquor, takes third
Mixed liquor, lecithin mixing is added in olefin(e) acid 3:16:1 in mass ratio, is warming up to 85 DEG C, is stirred, and cooled to room temperature is taken out
Vacuum concentration processing, obtains concentrate, takes concentrate object 13:1 in mass ratio that the sodium hydroxide solution that mass fraction is 20% is added,
It is stirred 40min, obtains disperse materials B, according to the mass fraction, takes 35 parts of disperse materials A, 15 parts of disperse materials B, 5 parts of material containing selenium, 3 parts
Auxiliary material, 2 parts of FeCl3, 2 parts of FeCl2, 20 parts of mass fractions be 20% sodium carbonate liquor mixed in reaction kettle, with 700r/min magnetic
Power stirs 50min, makees materials in 60 DEG C of rotary evaporations to the 35% of original volume to get composite diffusion.
The compound preparation for protecting the material that collapses: 6:3 in mass ratio takes sodium bentonite, diatomite to mix in mortar, with 450r/min
3h is ground, abrasive is obtained, takes abrasive 1:18 in mass ratio that the ammonium chloride solution that mass fraction is 15% is added and mixes, Yu Chaosheng
For wave concussion instrument with 40 DEG C of temperature, 55kHz frequency ultrasound handles 19min, obtains disperse materials, takes disperse materials 25:1 in mass ratio that mercapto is added
The mixing of base ethamine moves to centrifuge after shaking 22h with 220r/min, is centrifuged 15min with 4000r/min, collects centrifugation object water
After washing 3 times, baking oven is moved to, in 70 DEG C of dry 3h, obtains dried object, takes dried object 25:1 in mass ratio that additive mixing is added equal
It is even to protect the material that collapses to get compound.
A kind of low-temperature stabilization type concrete pump-feed agent, according to the mass fraction, including following component: 3 parts of polyethylene glycol, 2 parts
Polycarboxylate water-reducer TH-925,3 parts of ethylene bis stearic acid amides, 2 parts of retarder, 3 parts of antifreezing agents, 30 parts of composite diffusion effects
Material, 15 parts of compound guarantors are collapsed material.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking composite diffusion makees materials.
Comparative example 2: it is essentially identical with the preparation method of embodiment 1, have only unlike lack compound guarantor and collapse material.
Comparative example 3: the concrete pump-feed agent of company, Hebei province production.
The concrete pump-feed agent that above-described embodiment is obtained with comparative example is detected, cement uses PO.42.5 cement；Powder
Coal ash is II grade of flyash；Sand is fineness modulus 2.8, and sand in IIth area, clay content is respectively 3%；Stone is nominal particle diameter
The rubble of 5mm-20mm；Additive is the concrete pump-feed agent that embodiment and comparative example obtain.Folk prescription concrete mix cement:
Sand: stone=360:780:1100, the volume of additive are respectively the 2% of cementitious material, and predetermined temperature is -15 DEG C.According to
National standard GB8076-2008 " concrete admixture " test, tests that the results are shown in Table 1.
Table 1:
In summary, concrete pump-feed agent effect of the invention is more preferable as can be seen from Table 1, is worth of widely use, described above
Preferred mode only of the invention, is not intended to limit the invention, all within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of low-temperature stabilization type concrete pump-feed agent, according to the mass fraction, including following component: 2 ~ 5 parts of polyethylene glycol, 1 ~ 3
Part polycarboxylate water-reducer TH-925,2 ~ 5 parts of ethylene bis stearic acid amides, 1 ~ 4 part of retarder, 1 ~ 4 part of antifreezing agent, feature exist
Make materials in, further includes: 25 ~ 50 parts of composite diffusions, 12 ~ 20 parts of compound guarantors are collapsed material.
2. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 1, which is characterized in that the composite diffusion effect
The preparation method of material, includes the following steps:
(1) it in 20 ~ 35 DEG C, takes linseed oil 10 ~ 20:3 in mass ratio that glycerol is added and is mixed, be warming up to 40 ~ 55 DEG C, be added sub-
The trimethylolpropane of sesame oil quality 30 ~ 50% is mixed, and is passed through nitrogen protection, is warming up to 210 ~ 220 DEG C, and heat preservation must react
Material takes reactant 110 ~ 150:1 in mass ratio ~ 3 that catalyst mixing is added, cooling in 220 ~ 230 DEG C of insulated and stirreds, must disperse
Expect A；
(2) in 25 ~ 35 DEG C, 1:5 ~ 8 take alcohol material, water mixing in mass ratio, are warming up to 70 ~ 85 DEG C, are stirred, obtain mixed liquor,
It takes acrylic acid 3:14 ~ 20:1 in mass ratio that mixed liquor, lecithin mixing is added, is warming up to 80 ~ 90 DEG C, is stirred, it is naturally cold
But to room temperature, concentration is vacuumized, concentrate is obtained, take concentrate object 10 ~ 15:1 in mass ratio that sodium hydroxide solution is added, stirring is mixed
Close, obtain disperse materials B, according to the mass fraction, take 30 ~ 45 parts of disperse materials A, 12 ~ 25 parts of disperse materials B, 3 ~ 6 parts of material containing selenium, 2 ~ 5 parts it is auxiliary
Material, 1 ~ 4 part of FeCl3, 1 ~ 4 part of FeCl2, 15 ~ 25 parts of sodium carbonate liquors be mixed, in 50 ~ 70 DEG C of rotary evaporations to get compound
Peptizaiton material.
3. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 2, which is characterized in that in the step (1)
Catalyst: 3 ~ 7:1 in mass ratio takes lithium hydroxide, ferrocene mixing to get catalyst.
4. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 2, which is characterized in that in the step (2)
Alcohol material: 1:2 ~ 5:10 in mass ratio takes pentaerythrite, isopropanol, dehydrated alcohol mixing to get alcohol material.
5. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 2, which is characterized in that in the step (2)
Material containing selenium: 2 ~ 4:1 in mass ratio takes selenophenol, the mixing of tetraphenylphosphonium chloride selenium to get material containing selenium.
6. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 2, which is characterized in that in the step (2)
Auxiliary material: 1:2 ~ 5:1 in mass ratio takes castor oil, stearic amide, microcrystalline wax mixing to get auxiliary material.
7. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 1, which is characterized in that the compound guarantor is collapsed material
Preparation: 4 ~ 8:3 in mass ratio takes sodium bentonite, diatomite mixed grinding, obtains abrasive, take abrasive 1:16 in mass ratio ~
20 are added ammonium chloride solution mixing, and in 35 ~ 60 DEG C, ultrasonic treatment obtains disperse materials, and disperse materials 20 ~ 30:1 in mass ratio is taken to be added
Mercaptoethylmaine mixing concussion, centrifugation are collected centrifugation object and are washed with water, dry, obtain dried object, take dried object in mass ratio 20 ~ 35:
1 addition additive mixing protects the material that collapses to get compound.
8. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 7, which is characterized in that the additive: pressing matter
Amount takes cetyl trimethylammonium bromide, polyvinyl alcohol to get additive than 2:3 ~ 7.
9. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 1, which is characterized in that the antifreezing agent: pressing matter
Amount takes ethylene glycol, methanol, sodium nitrite mixing to get antifreezing agent than 1:4 ~ 8:1.
10. a kind of low-temperature stabilization type concrete pump-feed agent according to claim 1, which is characterized in that the retarder: pressing matter
Amount takes sodium citrate, zinc sulfate, wooden sodium sulfonate's mixing to get retarder than 3 ~ 6:1:1 ~ 4.
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