CN101549973A - Compound concrete high efficiency water reducing agent - Google Patents
Compound concrete high efficiency water reducing agent Download PDFInfo
- Publication number
- CN101549973A CN101549973A CNA2009100265232A CN200910026523A CN101549973A CN 101549973 A CN101549973 A CN 101549973A CN A2009100265232 A CNA2009100265232 A CN A2009100265232A CN 200910026523 A CN200910026523 A CN 200910026523A CN 101549973 A CN101549973 A CN 101549973A
- Authority
- CN
- China
- Prior art keywords
- high efficiency
- water reducing
- reducing agent
- efficiency water
- concrete high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 26
- 150000001875 compounds Chemical class 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000007859 condensation product Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 8
- 239000004034 viscosity adjusting agent Substances 0.000 claims description 6
- -1 aldehyde ketone Chemical class 0.000 claims description 5
- 230000003467 diminishing effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 5
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 5
- WPONNXIJPKZHGB-UHFFFAOYSA-N formaldehyde;sulfamic acid Chemical compound O=C.NS(O)(=O)=O WPONNXIJPKZHGB-UHFFFAOYSA-N 0.000 claims description 5
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 5
- 238000006277 sulfonation reaction Methods 0.000 claims description 5
- 229920001285 xanthan gum Polymers 0.000 claims description 5
- 239000000230 xanthan gum Substances 0.000 claims description 5
- 229940082509 xanthan gum Drugs 0.000 claims description 5
- 235000010493 xanthan gum Nutrition 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 101710194948 Protein phosphatase PhpP Proteins 0.000 claims description 4
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 4
- 239000012452 mother liquor Substances 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 229920002310 Welan gum Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 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
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
-
- 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
- C04B2103/302—Water reducers
-
- 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
- C04B2103/304—Air-entrainers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
Abstract
The invention relates to a compound concrete high efficiency water reducing agent which comprises water reducing mother liquid, a retarding and plasticity-maintaining agent, a viscosity regulator and an air entraining agent. The compound concrete high efficiency water reducing agent greatly enhances the adaptability of concrete admixture, improves the operability of the concrete, has good effect for controlling the loss of concrete slump, and improves the freeze-thaw resistance of the concrete.
Description
Technical field
The present invention relates to concrete admixture, belong to building material field, relate in particular to a kind of compound concrete high efficiency water reducing agent.
Background technology
In recent years, concrete technology is advanced by leaps and bounds, and wherein, most important technological breakthrough is the use of concrete admixture.Concrete admixture can be used to improve the fresh concrete workability, improve maturing physical and mechanical property and weather resistance.At present, the direction of concrete admixture development is high-performance, multi-functional compound additive, has only compoundization could tackle the cement component of complexity day by day, the development of promotion new concrete and new construction technology.High efficiency water reducing agent is a wherein most important class material.
Water-reduction mechanism studies show that, can reduce cement concrete water consumption (under the identical workability) by three kinds of effects, that is: dissemination, initial stage aquation restraining effect, bleed effect.
After concrete added the water stirring, system was unsettled, and wherein flocculation is agglomerating easily for the cement particle, and so a part of free-water is wrapped in the middle of the cement particle of flocculation.
Along with going deep into and environmental requirement of cement industry energy-saving and emission-reduction, the various waste adulterants in the concrete are day by day complicated, and current additive product often runs into some adaptability problems, presses for solution.
Summary of the invention
In order to overcome above-mentioned defective, the technical problem to be solved in the present invention is: a kind of high performance compound concrete high efficiency water reducing agent is provided.
In order to overcome the defective that exists in the background technology, the technical solution adopted for the present invention to solve the technical problems is: a kind of compound concrete high efficiency water reducing agent, described concrete high efficiency water reducing agent comprises: 70～90 weight % diminishing mother liquors, 1～6 weight % slow setting plasticity-retention agent, 0.1～1 weight % viscosity modifier, 0.1～2 weight % air entrapment agent, surplus is a water.
According to another technical scheme of the present invention, the water reducer that concrete high efficiency water reducing agent comprises is one or more a mixture of naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products.
According to another technical scheme of the present invention, the slow setting plasticity-retention agent that concrete high efficiency water reducing agent comprises is one or more a mixture of citric acid or Sunmorl N 60S, tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
According to another technical scheme of the present invention, the viscosity modifier that concrete high efficiency water reducing agent comprises is one or more a mixture of ether of cellulose, xanthan gum, welan gum.
According to another technical scheme of the present invention, the air entrapment agent that concrete high efficiency water reducing agent comprises is one or both a mixture of the discarded hair-hydrolyzation thing of animal, Sodium dodecylbenzene sulfonate.
The present invention also provides the method for preparing concrete high efficiency water reducing agent, at first, adds the diminishing mother liquor in reactor, and heated and stirred is warming up to 20 ℃～50 ℃; Then in solution, add the slow setting plasticity-retention agent, continue to stir; Then, in solution, add viscosity modifier and air entrapment agent stirring; At last, in solution, add entry, stir and adjust strength of solution, discharging.
The present invention has following effect with respect to prior art: after adding high efficiency water reducing agent, the negatively charged ion that the water reducer molecule becomes at dissociation in water is adsorbed on the concrete cement particle and has reduced its surface energy, and on the cement particle, form the adsorption layer of highfield, destroyed the cement aggregate, discharge this part water that is wrapped in and produce dissemination, and then improved concrete flowability; And different water reducers has different dissemination mechanism owing to having different molecular structures, uses the water reducer recombination energy of different structure to produce synergistic effect, further improves water-reducing effect.The present invention increases substantially the adaptability of concrete admixture, improves concrete operability, and the control concrete slump loss is had good effect, improves concrete antifreezing and melts performance.
Embodiment
Embodiment 1
Pressing column weight amount ratio gets the raw materials ready
At first add naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, attemperation is to 20-50 ℃, stirred ten minutes, and added citric acid, tripoly phosphate sodium STPP, continue to stir 15 minutes, add animal discarded the hair-hydrolyzation thing aqueous solution, Sodium dodecylbenzene sulfonate and xanthan gum at last, stirred 30 minutes, leave standstill 1 hour after, add water and adjust concentration, restir 15 minutes, discharging.
Embodiment 2
Get the raw materials ready by following mass ratio
At first add naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, attemperation is to 20-50 ℃, stirred ten minutes, and added Sunmorl N 60S, Sodium hexametaphosphate 99, continue to stir 15 minutes, add animal discarded the hair-hydrolyzation thing aqueous solution, Sodium dodecylbenzene sulfonate and xanthan gum at last, stirred 30 minutes, leave standstill 1 hour after, add water and adjust concentration, restir 15 minutes, discharging.
Embodiment 3
Get the raw materials ready by following mass ratio
At first add naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products, attemperation is to 20-50 ℃, stirred ten minutes, and added citric acid, tripoly phosphate sodium STPP, continue to stir 15 minutes, add animal discarded the hair-hydrolyzation thing aqueous solution, Sodium dodecylbenzene sulfonate and xanthan gum at last, stirred 30 minutes, leave standstill 1 hour after, add water and adjust concentration, restir 15 minutes, discharging.
Through detecting, the performance of product is as follows in the embodiment of the invention 1:
Table one: concrete mix and properties of hardened concrete
Annotate: volume 0.6% (the solid amount of folding) cement: reference cement.
Table two: ammonia content is measured
| Numbering | Project | Standard value | Measured value | Conclusion |
| 1 | Ammonia content % | ≤0.1 | 0.00903 | Qualified |
By above data presentation, adopt the present invention to increase substantially the adaptability of concrete admixture, improve concrete operability, the control concrete slump loss is had good effect, can improve concrete antifreezing in addition to a certain extent and melt performance.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, must determine its technical scope according to the claim scope.
Claims (6)
1, a kind of compound concrete high efficiency water reducing agent, it is characterized in that: described concrete high efficiency water reducing agent comprises: 70～90 weight % diminishing mother liquors, 1～6 weight % slow setting plasticity-retention agent, 0.1～1 weight % viscosity modifier, 0.1～2 weight % air entrapment agent, surplus is a water.
2, compound concrete high efficiency water reducing agent as claimed in claim 1 is characterized in that: described diminishing mother liquor is one or more a mixture of naphthalene sulfonic acidformaldehyde condensation product, aldehyde ketone sulfonation condenses, sulfamate formaldehyde condensation products.
3, compound concrete high efficiency water reducing agent as claimed in claim 1 is characterized in that: described slow setting plasticity-retention agent is one or more a mixture of citric acid or Sunmorl N 60S, tripoly phosphate sodium STPP or Sodium hexametaphosphate 99.
4, compound concrete high efficiency water reducing agent as claimed in claim 1 is characterized in that: described viscosity modifier is one or more a mixture of ether of cellulose, xanthan gum, welan gum.
5, compound concrete high efficiency water reducing agent as claimed in claim 1 is characterized in that: described air entrapment agent is one or both a mixture of the discarded hair-hydrolyzation thing of animal, Sodium dodecylbenzene sulfonate.
6, the method for the concrete high efficiency water reducing agent of a kind of preparation shown in claim 1 is characterized in that: at first, add the diminishing mother liquor in reactor, heated and stirred is warming up to 20 ℃～50 ℃; Then in solution, add the slow setting plasticity-retention agent, continue to stir; Then, in solution, add viscosity modifier and air entrapment agent stirring; At last, in solution, add entry, stir and adjust strength of solution, discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100265232A CN101549973B (en) | 2009-05-11 | 2009-05-11 | Compound concrete high efficiency water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100265232A CN101549973B (en) | 2009-05-11 | 2009-05-11 | Compound concrete high efficiency water reducing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101549973A true CN101549973A (en) | 2009-10-07 |
| CN101549973B CN101549973B (en) | 2012-04-18 |
Family
ID=41154505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100265232A Expired - Fee Related CN101549973B (en) | 2009-05-11 | 2009-05-11 | Compound concrete high efficiency water reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101549973B (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786888A (en) * | 2010-02-26 | 2010-07-28 | 长沙翰林化工科技有限公司 | Multifunctional ceramic composite additive |
| CN102372459A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Method for enhancing workability of concrete |
| CN102372460A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Concrete composite water reducer |
| CN102372461A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Concrete additive |
| CN102372467A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Method for preparing low-strength concrete by using polycarboxylate superplasticizer |
| CN103359971A (en) * | 2013-07-22 | 2013-10-23 | 中核混凝土股份有限公司 | Nuclear-power concrete air-entraining polycarboxylic acid additive |
| CN103613315A (en) * | 2013-11-08 | 2014-03-05 | 安徽省阜南绿原化工有限公司 | Composite concrete water reducing agent |
| CN103613313A (en) * | 2013-11-08 | 2014-03-05 | 安徽省阜南绿原化工有限公司 | Superplasticizer for bored secant pile of subway |
| CN105037628A (en) * | 2015-07-08 | 2015-11-11 | 广西科技大学 | Retarding aliphatic superplasticizer synthesis method |
| CN105271888A (en) * | 2015-09-25 | 2016-01-27 | 中国铁道科学研究院铁道建筑研究所 | Modification additive suitable for low-quality aggregate concrete, and preparation method thereof |
| CN105347726A (en) * | 2015-10-16 | 2016-02-24 | 同济大学 | Anticorrosive composite polycarboxylate superplasticizer with high slump loss resistance, and preparation method and application thereof |
| CN105384380A (en) * | 2015-12-07 | 2016-03-09 | 安徽省阜南绿原化工有限公司 | Tannin extract/polycarboxylate concrete water reducer and preparation method thereof |
| CN106277906A (en) * | 2016-08-08 | 2017-01-04 | 安徽炎胜新材料科技有限公司 | A kind of slow setting early strength concrete water reducer and preparation method thereof |
| CN106396466A (en) * | 2016-08-29 | 2017-02-15 | 宿州兴隆建材有限公司 | Concrete compound water reducing agent, and preparation method thereof |
| CN103553417B (en) * | 2013-09-30 | 2017-03-01 | 湖北三可建材科技股份有限公司 | A kind of polycarboxylic acids diminishing complexing agent and its process units |
| WO2018091659A1 (en) | 2016-11-21 | 2018-05-24 | Basf Se | Composition for inorganic binders |
| CN108516753A (en) * | 2018-06-25 | 2018-09-11 | 武汉德毅环保新材料有限公司 | A kind of additives for Dry-Mixed Mortar and dry-mixed mortar and preparation method |
| CN109369062A (en) * | 2018-11-16 | 2019-02-22 | 石家庄铁道大学 | A kind of slding form operation concrete thixotroping and autotrophy protective material and preparation method thereof |
| CN110282902A (en) * | 2019-06-21 | 2019-09-27 | 深圳市振惠通混凝土有限公司 | A kind of environment-friendly type compounding naphthalene series high-efficiency water-reducing agent and preparation method thereof |
| CN110482973A (en) * | 2019-09-12 | 2019-11-22 | 徐州金盟新型建材有限公司 | It is a kind of based on trade waste be raw material concrete and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087009C (en) * | 1999-11-17 | 2002-07-03 | 武汉大学 | Efficient water-reducing, slow-settling plasticizing agent of concrete |
| CN100381386C (en) * | 2006-07-13 | 2008-04-16 | 内蒙古科技大学 | Efficient retarding and water reducing agent for concrete |
-
2009
- 2009-05-11 CN CN2009100265232A patent/CN101549973B/en not_active Expired - Fee Related
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786888B (en) * | 2010-02-26 | 2012-07-04 | 长沙翰林化工科技有限公司 | Multifunctional ceramic composite additive |
| CN101786888A (en) * | 2010-02-26 | 2010-07-28 | 长沙翰林化工科技有限公司 | Multifunctional ceramic composite additive |
| CN102372467B (en) * | 2010-08-24 | 2013-09-11 | 上海台界化工有限公司 | Method for preparing low-strength concrete by using polycarboxylate superplasticizer |
| CN102372461A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Concrete additive |
| CN102372467A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Method for preparing low-strength concrete by using polycarboxylate superplasticizer |
| CN102372460A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Concrete composite water reducer |
| CN102372461B (en) * | 2010-08-24 | 2014-04-09 | 上海台界化工有限公司 | Concrete additive |
| CN102372459B (en) * | 2010-08-24 | 2014-06-25 | 上海台界化工有限公司 | Method for enhancing workability of concrete |
| CN102372459A (en) * | 2010-08-24 | 2012-03-14 | 上海台界化工有限公司 | Method for enhancing workability of concrete |
| CN103359971A (en) * | 2013-07-22 | 2013-10-23 | 中核混凝土股份有限公司 | Nuclear-power concrete air-entraining polycarboxylic acid additive |
| CN103359971B (en) * | 2013-07-22 | 2015-03-04 | 中核混凝土股份有限公司 | Nuclear-power concrete air-entraining polycarboxylic acid additive |
| CN103553417B (en) * | 2013-09-30 | 2017-03-01 | 湖北三可建材科技股份有限公司 | A kind of polycarboxylic acids diminishing complexing agent and its process units |
| CN103613315A (en) * | 2013-11-08 | 2014-03-05 | 安徽省阜南绿原化工有限公司 | Composite concrete water reducing agent |
| CN103613313A (en) * | 2013-11-08 | 2014-03-05 | 安徽省阜南绿原化工有限公司 | Superplasticizer for bored secant pile of subway |
| CN105037628A (en) * | 2015-07-08 | 2015-11-11 | 广西科技大学 | Retarding aliphatic superplasticizer synthesis method |
| CN105271888A (en) * | 2015-09-25 | 2016-01-27 | 中国铁道科学研究院铁道建筑研究所 | Modification additive suitable for low-quality aggregate concrete, and preparation method thereof |
| CN105271888B (en) * | 2015-09-25 | 2017-09-26 | 中国铁道科学研究院铁道建筑研究所 | It is a kind of suitable for modified additive of low quality aggregate concrete and preparation method thereof |
| CN105347726A (en) * | 2015-10-16 | 2016-02-24 | 同济大学 | Anticorrosive composite polycarboxylate superplasticizer with high slump loss resistance, and preparation method and application thereof |
| CN105384380A (en) * | 2015-12-07 | 2016-03-09 | 安徽省阜南绿原化工有限公司 | Tannin extract/polycarboxylate concrete water reducer and preparation method thereof |
| CN106277906A (en) * | 2016-08-08 | 2017-01-04 | 安徽炎胜新材料科技有限公司 | A kind of slow setting early strength concrete water reducer and preparation method thereof |
| CN106396466A (en) * | 2016-08-29 | 2017-02-15 | 宿州兴隆建材有限公司 | Concrete compound water reducing agent, and preparation method thereof |
| WO2018091659A1 (en) | 2016-11-21 | 2018-05-24 | Basf Se | Composition for inorganic binders |
| RU2761423C2 (en) * | 2016-11-21 | 2021-12-08 | Басф Се | Composition for inorganic binders |
| CN108516753A (en) * | 2018-06-25 | 2018-09-11 | 武汉德毅环保新材料有限公司 | A kind of additives for Dry-Mixed Mortar and dry-mixed mortar and preparation method |
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| CN109369062B (en) * | 2018-11-16 | 2020-12-22 | 石家庄铁道大学 | Thixotropic and self-curing material for slip-form construction concrete and preparation method thereof |
| CN110282902A (en) * | 2019-06-21 | 2019-09-27 | 深圳市振惠通混凝土有限公司 | A kind of environment-friendly type compounding naphthalene series high-efficiency water-reducing agent and preparation method thereof |
| CN110482973A (en) * | 2019-09-12 | 2019-11-22 | 徐州金盟新型建材有限公司 | It is a kind of based on trade waste be raw material concrete and preparation method thereof |
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