CN106699965A - Concrete performance regulator and preparation method thereof - Google Patents
Concrete performance regulator and preparation method thereof Download PDFInfo
- Publication number
- CN106699965A CN106699965A CN201611161300.3A CN201611161300A CN106699965A CN 106699965 A CN106699965 A CN 106699965A CN 201611161300 A CN201611161300 A CN 201611161300A CN 106699965 A CN106699965 A CN 106699965A
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- Prior art keywords
- concrete performance
- concrete
- conditioning agent
- agent
- percent
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2652—Nitrogen containing polymers, e.g. polyacrylamides, polyacrylonitriles
- C04B24/2658—Nitrogen containing polymers, e.g. polyacrylamides, polyacrylonitriles containing polyether side chains
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/40—Redox systems
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a concrete performance regulator. The concrete performance regulator is prepared from the following components by mass percent: 14 to 25 percent of acrylamide, 3 to 10 percent of AMPS, 4 to 10 percent of cross-linking agent, 8 to 20 percent of sorbitol, 3 to 10 percent of initiator, and 50 to 68 percent of water, wherein the initiator is an oxidization reduction system and consists of a reducing agent and an oxidant, the reducing agent accounts for 1 to 5 percent of the total mass of the formula, and the oxidant accounts for 2 to 8 percent of the total mass of the oxidant. The concrete performance regulator contains a three-dimensional netted structure, so that the dispersity of a binding material can be improved, the mixability of the concrete is improved, the compatibility with polycarboxylate superplasticizer is good, and the concrete performance regulator is suitable for various sand aggregates.
Description
Technical field
The present invention relates to a kind of concrete admixture, more particularly, to a kind of concrete performance conditioning agent, one kind is further related to
The preparation method of concrete performance conditioning agent.
Background technology
Recently as continuing to increase for engineering construction amount, concrete amount constantly rises, for concrete strength, construction
The requirement such as difficulty and durability is also improved constantly, therefore the additive research being improved for concrete performance is constantly sent out
Exhibition.Such as Chinese patent CN2014107176014 discloses a kind of concrete viscosity conditioning agent, its composition (mol ratio) for sun from
Sub- monomer:Anionic monomer:Internal crosslinker=1:(0.5~5):(0.01~0.1), for improving concrete viscosity and suppressing mixed
Solidifying soil isolation bleeding；Chinese patent CN2016102012568 discloses a kind of concrete admixture, by following raw material group
Into：Hex godajam (colebr) Wall 25-33 parts, polyacrylamide 35-42 parts, sodium acetate 8-15 parts, 20-28 parts of octadecylamine emulsion, it is mixed for improving
Coagulate the workability and excreting water phenomenon of soil；Chinese patent CN2014106580405 discloses a kind of Concrete synergist, by following heavy
Amount percentage raw material composition triethanolamine 20~35%, contracting propyl methocel 15~28%, polyacrylamide 10~15%,
Poly carboxylic acid series water reducer 20~26%, sodium lignin sulfonate 5~12%, silicon ash 2~6%, sodium tripolyphosphate 1~5%, dodecane
Base benzene sulfonic acid sodium salt 0.001~0.006%, sodium gluconate 0.01~0.05% can improve concrete workability and anti-bleeding
Isolation, but its compression strength and rupture strength in order to improve concrete, constitute relative complex；Chinese patent
CN2014100241309 discloses a kind of concrete thickening water-loss reducer, and the raw material dosage percentage for being used is respectively：Polypropylene
Acid amides 10%, hydrolyst 8%, water 82%, can improve the workability of concrete and suppress concrete bleeding；It is Chinese special
Sharp CN201410404173X discloses a kind of high-strength underwater concrete additive of retardation setting type high fluidity, and component includes kaolin
And composite modifier, it is directed to mobility and durability of underwater concrete etc. is improved.
Improved to some extent for concrete workability in the additive of above-mentioned technology, but its not directed to common C25,
C30 concrete, C25, C30 are undesirable due to the low grading of aggregates of cement amount, stone accumulation, bleeding, bleeding etc. easily occur no
Good phenomenon, while not embodying the solution to the consistency problem of polycarboxylate water-reducer above-mentioned additive, it is impossible to which meeting the modern times builds more
Build the engineering concrete demand increasing to polycarboxylate water-reducer.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of conditioning agent that can improve concrete workability.
The technical scheme is that a kind of concrete performance conditioning agent is provided, including following component：
As a further improvement, the initiator is redox system, it is made up of reducing agent and oxidant, wherein reducing
Agent accounts for conditioner formulations gross mass percentage for 1~5wt%, oxidant account for conditioner formulations gross mass percentage for 2~
8wt%；
As a further improvement, the reducing agent is in sodium pyrosulfite, sodium hydrogensulfite, ferrous sulfate, vitamin C
One or more；
As a further improvement, the oxidant is one or more in ammonium persulfate, hydrogen peroxide, potassium peroxydisulfate；
The present invention also provides a kind of preparation method of concrete performance conditioning agent, comprises the following steps：
(1) each raw material of above-mentioned formula ratio is taken；
(2) acrylamide and AMPS are dissolved in the water；
(3) sorbierite and crosslinking agent are added, 100~120 DEG C are persistently stirred and be warming up to, 20~40min is reacted；
(4) after adding initiator, 90~120 DEG C of constant temperature are incubated 1~1.5h, form colloidal liquid.
The advantages of the present invention are：
1st, acrylamide and AMPS react and to form graft copolymer and can adsorb excessive moisture, concrete is kept suitable
Mobility；Crosslinking copolymerization forms tridimensional network simultaneously, spatially has compartmentation for Binder Materials, improves gelling
The dispersiveness of material such as cement, so as to improve the cohesiveness of concrete, is effectively improved concrete workability；
2nd, reduce polycarboxylate water-reducer to the sensitiveness of concrete raw material, water consumption and volume, and with polycarboxylic acids diminishing
The compatibility of agent is very good, it is adaptable to various aggregates such as Machine-made Sand, Weathered Sand, coarse sand river sand；
3rd, acrylamide has thickening power under neutral and acid condition, and facile hydrolysis is in half netted knot when pH >=10
Structure, the workability for adjusting concrete has been benefited, even if therefore acrylamide monomer not polymerization or poly- from grafting completely
It is decomposed on compound, can't also influences the performance of concrete；
4th, using the preparation method of Ligature after being first crosslinked, it is ensured that acrylamide is preliminary on specific site with AMPS
Activated polymerization, then carry out link aggregation, monomer that will be needed for glycerol polymerization is controlled in the range of relatively small molecular weight, is reduced point
The resistance of sub- glycerol polymerization, improves graft polymerization yield, and temperature required for reducing glycerol polymerization reduces the reaction time, reduces energy
Consumption.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
The present invention provides a kind of concrete performance conditioning agent, including following mass percent component：
Acrylamide 14wt%, AMPS 6wt%, crosslinking agent 6wt%, sorbierite 18wt%, sodium hydrogensulfite 2wt%, mistake
Ammonium sulfate 4wt%, water 50wt%.
The present invention also provides a kind of preparation method of concrete performance conditioning agent, comprises the following steps：
(1) each raw material of above-mentioned formula ratio is taken；
(2) by acrylamide and AMPS dilute with waters；
(3) sorbierite and crosslinking agent are added, 120~140 DEG C are stirred and be warming up to, 20~40min is reacted；
(4) sodium hydrogensulfite and ammonium persulfate are added；
(5) 90~120 DEG C of constant temperature are incubated 1~1.5h, form colloidal liquid.
Embodiment 2
The present invention provides a kind of concrete performance conditioning agent, including following mass percent component：
Acrylamide 16wt%, AMPS 8wt%, crosslinking agent 8wt%, sorbierite 12wt%, sodium pyrosulfite 3wt%, mistake
Hydrogen oxide 3wt%, water 50wt%.
The present embodiment preparation method is with embodiment 1.
Embodiment 3
The present invention provides a kind of concrete performance conditioning agent, including following mass percent component：
Acrylamide 25%, AMPS 3wt%, crosslinking agent 4wt%, sorbierite 8wt%, ferrous sulfate 2wt%, peroxidating
Hydrogen 3wt%, water 55wt%.
The present embodiment preparation method is with embodiment 1.
Embodiment 4
The present invention provides a kind of concrete performance conditioning agent, including following mass percent component：
Acrylamide 14wt%, AMPS 10wt%, crosslinking agent 10wt%, sorbierite 8wt%, vitamin C 1wt%, mistake
Potassium sulfate 2wt%, water 55wt%.
The present embodiment preparation method is with embodiment 1.
According to《Standard for test methods of longterm performance and durability of ordinary concrete standard (GB/T 50082-2009)》With《It is mixed
Solidifying soil quality control standard (GB/T 50164-2011)》, concrete performance conditioning agent workability energy index of the invention is carried out
Test, it is as a result as follows：
By taking intensity C25 concrete as an example, proportion design such as table 1
Table 1
| Concrete material | Cement | Sand | Stone | Water |
| Concrete material consumption kg/m3 | 395 | 570 | 1260 | 174 |
Detection performance indications are shown in Table 2
Table 2
Knowable to the data of table 2, conditioning agent of the present invention has good workability and anti-bleeding performance, be conducive to constructing into
OK.
The above, only the preferred embodiments of the present invention, it is noted that for those skilled in the art
For, on the premise of core technology of the invention is not departed from, improvements and modifications can also be made, these improvements and modifications also should
Belong to scope of patent protection of the invention.Any change in the implication and scope suitable with claims of the present invention, all
It is considered as being included within the scope of the claims.
Claims (7)
1. a kind of concrete performance conditioning agent, it is characterised in that the raw material including following mass percent：Acrylamide 14~
25wt%, 2- 3~10wt% of acrylamide-2-methyl propane sulfonic, 4~10wt% of crosslinking agent, 8~20wt% of sorbierite, trigger
3~13wt% of agent, 50~68wt% of water.
2. concrete performance conditioning agent as claimed in claim 1, it is characterised in that the initiator is redox system,
Wherein reducing agent accounts for conditioner formulations gross mass percentage for 1~5wt%, and oxidant accounts for conditioner formulations gross mass percentage and is
2~8wt%.
3. concrete performance conditioning agent as claimed in claim 2, it is characterised in that the reducing agent is sodium pyrosulfite, Asia
One or more in niter cake, ferrous sulfate, vitamin C.
4. concrete performance conditioning agent as claimed in claim 2, it is characterised in that the oxidant is ammonium persulfate, peroxide
Change hydrogen, one or more in potassium peroxydisulfate.
5. the method for preparing the concrete performance conditioning agent as described in Claims 1 to 4 any one, it is characterised in that including
Following steps：
(1) each raw material of above-mentioned formula ratio is taken；
(2) by acrylamide and the methyl propane sulfonic acid dilute with water of 2- acrylamides -2；
(3) sorbierite and crosslinking agent are added, 120~140 DEG C are persistently stirred and be warming up to, 20~40min is reacted；
(4) initiator, 90~120 DEG C of constant temperature is added to be incubated 1~1.5h, form colloidal liquid.
6. the side of the concrete performance conditioning agent as described in Claims 1 to 4 any one is prepared as claimed in claim 5
Method, it is characterised in that it is 20~40min to continue mixing time in the step (4), is warming up to 120~140 DEG C.
7. the side of the concrete performance conditioning agent as described in Claims 1 to 4 any one is prepared as claimed in claim 5
Method, it is characterised in that thermostat temperature is 90~120 DEG C in the step (5), soaking time is 40~60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161300.3A CN106699965A (en) | 2016-12-15 | 2016-12-15 | Concrete performance regulator and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161300.3A CN106699965A (en) | 2016-12-15 | 2016-12-15 | Concrete performance regulator and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106699965A true CN106699965A (en) | 2017-05-24 |
Family
ID=58937818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201611161300.3A Pending CN106699965A (en) | 2016-12-15 | 2016-12-15 | Concrete performance regulator and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746878A (en) * | 2016-11-29 | 2017-05-31 | 长沙加美乐素化工有限公司 | A kind of viscosity modifier and preparation method thereof |
| CN111635162A (en) * | 2020-06-10 | 2020-09-08 | 广东创亨建设有限公司 | Green and environment-friendly mortar regulator and preparation method thereof |
| CN112851168A (en) * | 2021-01-25 | 2021-05-28 | 安徽马钢张庄矿业有限责任公司 | High-silicon tailing composite admixture applied to concrete and preparation method thereof |
| CN113651912A (en) * | 2021-06-30 | 2021-11-16 | 扬州科苑化工有限公司 | PAM anionic liquid thickener |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270333A (en) * | 1987-04-28 | 1988-11-08 | Kyoritsu Yuki Co Ltd | Viscous cement composition |
| CN101679119A (en) * | 2007-06-14 | 2010-03-24 | 建筑研究和技术有限公司 | Dry construction material mixtures based on calcium sulfate |
| CN102712530A (en) * | 2009-11-11 | 2012-10-03 | 巴斯夫聚合建材有限公司 | Dry mortar mixture |
| CN103241977A (en) * | 2013-05-29 | 2013-08-14 | 上海市建筑科学研究院(集团)有限公司 | Novel water retention agent for architectural dry powder mortar, and preparation method and application thereof |
-
2016
- 2016-12-15 CN CN201611161300.3A patent/CN106699965A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270333A (en) * | 1987-04-28 | 1988-11-08 | Kyoritsu Yuki Co Ltd | Viscous cement composition |
| CN101679119A (en) * | 2007-06-14 | 2010-03-24 | 建筑研究和技术有限公司 | Dry construction material mixtures based on calcium sulfate |
| CN102712530A (en) * | 2009-11-11 | 2012-10-03 | 巴斯夫聚合建材有限公司 | Dry mortar mixture |
| CN103241977A (en) * | 2013-05-29 | 2013-08-14 | 上海市建筑科学研究院(集团)有限公司 | Novel water retention agent for architectural dry powder mortar, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姜锡瑞等主编: "《生物发酵产业技术》", 31 May 2016 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746878A (en) * | 2016-11-29 | 2017-05-31 | 长沙加美乐素化工有限公司 | A kind of viscosity modifier and preparation method thereof |
| CN111635162A (en) * | 2020-06-10 | 2020-09-08 | 广东创亨建设有限公司 | Green and environment-friendly mortar regulator and preparation method thereof |
| CN112851168A (en) * | 2021-01-25 | 2021-05-28 | 安徽马钢张庄矿业有限责任公司 | High-silicon tailing composite admixture applied to concrete and preparation method thereof |
| CN113651912A (en) * | 2021-06-30 | 2021-11-16 | 扬州科苑化工有限公司 | PAM anionic liquid thickener |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |