CN101434466A - Polymer composite expansion agent and production method thereof - Google Patents
Polymer composite expansion agent and production method thereof Download PDFInfo
- Publication number
- CN101434466A CN101434466A CNA2007101899471A CN200710189947A CN101434466A CN 101434466 A CN101434466 A CN 101434466A CN A2007101899471 A CNA2007101899471 A CN A2007101899471A CN 200710189947 A CN200710189947 A CN 200710189947A CN 101434466 A CN101434466 A CN 101434466A
- Authority
- CN
- China
- Prior art keywords
- polymer composite
- expansion agent
- composite expansion
- production method
- latex powder
- 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.)
- Pending
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Classifications
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- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
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- 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
- C04B40/0042—Powdery mixtures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a polymer composite expansion admixture applied in the construction field, and a production method thereof. The invention comprises the following three main parts: 1. the components of the invention are fly ash, dead plaster, heavy polymer resin and redispersible emulsoid powder; 2. the production method comprises the following steps: evenly mixing the fly ash, the dead plaster, carboxymethyl cellulose and PVA emulsion powder according to proportion, which are then conveyed to a raymond mill so as to be ground into 120 items, thus obtaining the finished products; 3. the invention has the following advantages: (1) the fly ash belongs to industrial solid waste utilization and complies with the energy-conserving and environment-protective policy of the nation; (2) the property that after absorbing water, heavy polymer resin slowly releases avoids or reduces the severe desiccation fissure phenomena caused by lack of maintenance and insufficient functions of expansion admixture; and (3) after being evenly dispersed in cement concrete, the redispersible emulsoid powder can form stereoscopic network structure, which obviously improves the tensile and anti-folding properties of cement products.
Description
Technical field: the present invention relates to a kind of swelling agent that is used for building field.Particularly relate to a kind of polymer composite expansion agent and production method.
Background technology: swelling agent is applied to produce in the Cement Concrete microdilatancy, offsets or reduce cement products to produce shrinkage crack in process of setting.Common swelling agent is used widely in construction work, hydro project, public works etc., and forms technological standard.Relate to addition and the using method all stipulated in the construction technique normalizing of Cement Concrete swelling agent.The existing both at home and abroad swelling agent that is used for the building field Cement Concrete has: calcium sulphoaluminate class, calcium sulphoaluminate-calcium oxide and three kinds of swelling agents of calcium oxide of national sector standard regulation.Calcium sulphoaluminate class swelling agent is present main product, domestic and international most expansive concrete all adopts aquation calcium sulphoaluminate (being ettringite) to be expansion sources, calcium oxide expansion agents also occupies certain market share, and is rarely found on the calcium sulphoaluminate one calcium oxide expansion agents market.
Calcium sulphoaluminate class swelling agent has the mitigation of expansion, and controllability is good, and is safe in utilization, the characteristics that staging life is long, thereby use more extensive.In the swelling agent of selling on the market; UEA, AEA, FS and UEA-X all belong to the calcium sulphoaluminate class; wherein; UEA-X is a class composite expanding agent that is composited by swelling agent and other chemical admixture; know through consulting relevant documentation ﹠ info; this class composite expanding agent has early strong composite expanding agent, diminishing composite expanding agent etc.; they are the same with common swelling agent; all need sufficient curing in water of long period just to have the effect of prestressed that expands well, but do not reach ideal expansion effect of prestressed because of maintenance is not in place through regular meeting's appearance in actual applications.
Summary of the invention: the object of the present invention is to provide a kind of polymer composite expansion agent and production method.Product of the present invention belongs to calcium sulphoaluminate class swelling agent.When it is applied to Cement Concrete, under the relatively poor situation of curing condition, still can bring into play its expansion effectively, avoid or reduce the shrinkage crack of cement.And significantly improve tension, the folding strength of Cement Concrete.
Technical scheme of the present invention is:
1, a kind of polymer composite expansion agent comprises following composition: flyash 40～80%, anhydrous calciumsulphate 15～55%, macromolecule copolymer resin 1～5%, redispersable latex powder 5～10%.
2, a kind of polymer composite expansion agent and production method is characterized in that: with flyash, anhydrous calciumsulphate, macromolecule copolymer resin, redispersable latex powder, uniform mixing is milled down to more than 120 orders in proportion, and packing is finished product after the assay was approved.
The present invention compared with prior art has following advantage:
1, the flyash in the polymer composite expansion agent is the one-level or the secondary drying flyash of power plant emission, belongs to utilization of waste material, meets national energy-conserving and environment-protective policy.
2, the macromolecule copolymer resin in the polymer composite expansion agent is polyacrylamide class or sodium polyacrylate or the cellulose material with high power water-absorbing rate.In the cement setting process of setting, macromolecule copolymer resin slowly discharges the moisture of its intermolecular containing and supplies with Cement Concrete, promote swelling agent effective constituent in cement products, to condense with the aquation of ettringite composition, produce microdilatancy, avoid or reduce the cement desciccation crack that causes because of curing condition is relatively poor, improve the quality of cement products.
3, redispersable latex powder is PVA latex powder or MD200 latex powder in the polymer composite expansion agent.It is formed the glue state by water dissolution, is dispersed in to form the cubic network structure in the Cement Concrete, increases the toughness of cement products after the dehydration drying, significantly improves cement products tension, fracture resistance.
Embodiment: following explanation Example formulations and production technique.
Embodiment 1: use following composition and proportioning in this example: flyash 40～80%, anhydrous calciumsulphate 15～55%, macromolecule copolymer resin 1～5%, redispersable latex powder 5～10%.
Embodiment 2: use following composition and proportioning in this example: flyash 50%, anhydrous calciumsulphate 40%, macromolecule copolymer resin 3%, redispersable latex powder 7%.
Described flyash, anhydrous calciumsulphate, carboxymethyl cellulose, PVA latex powder are measured in proportion, and it is even to add stirrer for mixing successively, is transported in the Raymond mill levigately to 120 orders again, and the discharging packing is finished product of the present invention.
Claims (6)
1, a kind of polymer composite expansion agent comprises following composition: flyash 40～80%, anhydrous calciumsulphate 15～55%, macromolecule copolymer resin 1～5%, redispersable latex powder 5～10%.
2, a kind of polymer composite expansion agent and production method, it is characterized in that: with flyash, anhydrous calciumsulphate, macromolecule copolymer resin, redispersable latex powder, be mixed in proportion the back and fully stir, and be milled down to more than 120 orders, packing is finished product after the assay was approved.
3, polymer composite expansion agent according to claim 1, wherein said flyash are the one-level or the secondary drying flyash of power plant emission.
4, polymer composite expansion agent according to claim 1, wherein said anhydrous calciumsulphate is for having
Imitate the Industrial products of composition 〉=95%.
5, polymer composite expansion agent according to claim 1, wherein said macromolecule copolymer resin are polyacrylamide class or sodium polyacrylate or the methylcellulose gum with high power water-absorbing rate.
6, polymer composite expansion agent according to claim 1, wherein said redispersable latex powder are PVA latex powder or MD200 latex powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101899471A CN101434466A (en) | 2007-11-12 | 2007-11-12 | Polymer composite expansion agent and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101899471A CN101434466A (en) | 2007-11-12 | 2007-11-12 | Polymer composite expansion agent and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101434466A true CN101434466A (en) | 2009-05-20 |
Family
ID=40709123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101899471A Pending CN101434466A (en) | 2007-11-12 | 2007-11-12 | Polymer composite expansion agent and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101434466A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671697A (en) * | 2015-02-05 | 2015-06-03 | 江苏苏博特新材料股份有限公司 | Modified calcium oxide expansive agent used for cement concrete and preparation method thereof |
| CN104671695A (en) * | 2015-02-05 | 2015-06-03 | 江苏苏博特新材料股份有限公司 | Modified calcium oxide expansive agent used for cement concrete and preparation method thereof |
| CN107082588A (en) * | 2016-04-22 | 2017-08-22 | 秦皇岛博茂环境工程有限公司 | A kind of water absoption expanding agent, preparation method and applications |
| CN108558330A (en) * | 2018-05-22 | 2018-09-21 | 武汉源锦建材科技有限公司 | A kind of tunnel-liner vault band mould grouting microdilatancy grout material |
| CN112624691A (en) * | 2020-12-18 | 2021-04-09 | 马鞍山市国林建材有限公司 | Production method of high-efficiency low-emission silent crushing agent for producing Z-shaped concrete hollow blocks |
-
2007
- 2007-11-12 CN CNA2007101899471A patent/CN101434466A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671697A (en) * | 2015-02-05 | 2015-06-03 | 江苏苏博特新材料股份有限公司 | Modified calcium oxide expansive agent used for cement concrete and preparation method thereof |
| CN104671695A (en) * | 2015-02-05 | 2015-06-03 | 江苏苏博特新材料股份有限公司 | Modified calcium oxide expansive agent used for cement concrete and preparation method thereof |
| CN104671697B (en) * | 2015-02-05 | 2017-10-10 | 江苏苏博特新材料股份有限公司 | A kind of modified oxidized calcium class cement concrete swelling agent and preparation method thereof |
| CN107082588A (en) * | 2016-04-22 | 2017-08-22 | 秦皇岛博茂环境工程有限公司 | A kind of water absoption expanding agent, preparation method and applications |
| CN107082588B (en) * | 2016-04-22 | 2020-03-06 | 秦皇岛博茂环境工程有限公司 | Water-absorbing swelling agent, preparation method and application thereof |
| CN108558330A (en) * | 2018-05-22 | 2018-09-21 | 武汉源锦建材科技有限公司 | A kind of tunnel-liner vault band mould grouting microdilatancy grout material |
| CN108558330B (en) * | 2018-05-22 | 2021-01-08 | 武汉源锦建材科技有限公司 | Micro-expansion grouting material for grouting with mold at arch crown of tunnel lining |
| CN112624691A (en) * | 2020-12-18 | 2021-04-09 | 马鞍山市国林建材有限公司 | Production method of high-efficiency low-emission silent crushing agent for producing Z-shaped concrete hollow blocks |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |