CN1026228C - multi-effect cement modifier - Google Patents
multi-effect cement modifier Download PDFInfo
- Publication number
- CN1026228C CN1026228C CN 88107704 CN88107704A CN1026228C CN 1026228 C CN1026228 C CN 1026228C CN 88107704 CN88107704 CN 88107704 CN 88107704 A CN88107704 A CN 88107704A CN 1026228 C CN1026228 C CN 1026228C
- Authority
- CN
- China
- Prior art keywords
- resin emulsion
- modifier
- cement
- cement modifier
- polyvinyl acetal
- 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.)
- Expired - Fee Related
Links
- 239000004568 cement Substances 0.000 title claims abstract description 20
- 239000003607 modifier Substances 0.000 title claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 16
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 16
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 10
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims abstract description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 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 4
- 238000004132 cross linking Methods 0.000 claims abstract description 3
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims abstract 3
- -1 acrylic ester Chemical class 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 235000021419 vinegar Nutrition 0.000 claims 1
- 239000000052 vinegar Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004576 sand Substances 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 108090000623 proteins and genes Proteins 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 9
- 150000001241 acetals Chemical class 0.000 description 6
- 239000000178 monomer Substances 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000006359 acetalization reaction Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 208000020584 Polyploidy Diseases 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A multi-effect cement modifier belongs to acrylic acid and acrylate resin emulsion. The modifier is a pre-crosslinking system prepared by mixing acrylic acid or acrylate resin emulsion with film-forming property and cohesiveness and polyvinyl acetal solution. The system has good hydrophilicity, film forming property, cohesiveness and a plurality of functional genes, so that the binding force of cement sand and mortar-reinforcing steel bar can be improved, and the system has a plurality of effects of reducing water, early strength, preventing rust, reducing shrinkage and the like.
Description
The present invention relates to sand-cement slurry, relate in particular to effective additive wherein.
For quality and the speed of application that improves buildings, in order to reduce cement consumption, the life-span of reinforcing bar in the profile of assurance buildings and the cement, the effective constituent of adding as softening agent, accelerating chemicals, water reducer, swelling agent, rust-preventive agent, binding agent and so in sand-cement slurry is necessary, in the past, Chang Yong plasticizer component had the compound of alcohols, phenols, ethers, carboxylic acid or its esters, fat, carbohydrate and derivative thereof, nitrogenous compound, sulfocompound, macromolecular compound, siliceous or titaniferous or zirconium; Setting accelerator commonly used has metallic element, oxide compound or oxyhydroxide, acid or its esters; Water reducer has silicon oxide-containing-lime type mixture, contains alkylammonium or alkalimetal silicate etc.; Swelling agent has macromolecular compound, the polycondensate of aldehydes or ketones, urethane, polyepoxides etc.; Rust-preventive agent has metal oxide, high molecular polymer etc.; Binding agent has synthetic resins, natural resin etc.The category of cement modifier is very various, can't give an example one by one.But above-mentioned these properties-correcting agent have only single modified performance mostly, and minority has 2～3 kinds of modified performances, do not have an energy to improve the properties-correcting agent of sand-cement slurry performance so far as yet aspect mainly comprehensively.
The present invention's purpose aims to provide a kind of multi-efficiency cement modifier that has diminishing, strong, aerating early, expansion, rapid hardening, froth breaking, antirust usefulness concurrently.
The present invention realizes above-mentioned purpose like this:
This cement modifier is hydrophilic acrylic acid series or acrylic ester resin emulsion and the polyvinyl acetal thing solution that all has cementability and film-forming properties with two kinds, the precrosslink volume that mixes, so its viscosity is higher, have good cohesiveness and film-forming properties, so can improve the bounding force between cement sand grains and mortar one reinforcing bar (plate), with the chloride-penetration resistance ability, and make the rebar surface conjunctiva antirust; Combination water in this hydrophilic pre-crosslinking system is slowly emitted from its network in the drying process that thes cement solidifies, and the volume profile that solid water is clay can remain unchanged (shrinking percentage is little), and the space of this resin network and aerating effect are equal to;
The prescription and the preparation method of this cement modifier are as follows:
Prescription one:
Acrylic resin emulsion (solid content 39 ± 1%) 25～50%
Polyvinyl acetal thing solution (10 ± 1%) 50～75%
Prescription two:
Acrylic ester resin emulsion (solid content 39 ± 1%) 25～50%
Polyvinyl acetal thing solution (10 ± 1%) 50～75%
The preparation method is: at normal temperatures and pressures, the two is added reaction vessel by above-mentioned prescription, under agitation thorough mixing is even, the cement modifier of precrosslink structure.
At raw materials used solid content, when concentration changes, can calculate proportioning raw materials by above-mentioned requirements and the actual solid content of raw material.Wherein, described acrylic resin emulsion is the acrylic resin emulsion that is contained 2～6 yuan of bodies that 1～5 kind of monomer copolymerization in the vinyl material forms by Acrylic Acid Monomer and vinylbenzene, vinyl cyanide, divinyl, iso-butylene etc.; Described acrylic ester resin emulsion is to contain the acrylic ester resin emulsion that 1～5 kind of monomer copolymerization in the vinyl material forms by 1～4 kind of monomer in the monomers such as acrylate, ethyl propenoate, Jia Jibingxisuanyizhi, butyl methacrylate and vinylbenzene, vinylformic acid, divinyl, iso-butylene, vinyl cyanide etc.; Described polyvinyl acetal thing solution be degree of acetalization be 15～45% polyvinyl formal, polyvinylacetal, polyvinyl butyral acetal, polyvinyl alcohol contract urea aldehyde, with urea-modified polyvinyl formal solution or its mixing solutions.
Consider that from performance diploid acrylic acid series or acrylic ester resin emulsion are available but are good with certain ternary or polyploid, be that resin emulsion is the best with ternary or multicomponent methacrylate especially wherein.Described polyvinyl acetal thing solution all is available, so from cost consideration, and polyvinyl formal and the most economic with urea-modified polyvinyl formal, its degree of acetalization is good with 20～40%.
Embodiment and effect:
This human solid content is that 39 ± 1% acrylic resin emulsion or acrylic ester resin are respectively 10 ± 1% polyvinyl formal solution with concentration, and the mixed with 1: 1,1: 1.5,1: 2.3 and 1: 3 makes 8 revise properties-correcting agent; It is made the cement-like piece respectively, judge acrylic ester properties-correcting agent better performances from experience, sample presentation is tested, the result shows: the ratio of acrylate resin emulsion (solid content 39 ± 1%) and polyvinyl formal (10 ± 1%) is 1: 2.3 and 1: 3(is 2.5～30%70～75%) the properties-correcting agent best results, to strong, diminishing, raising early extend intensity, improve cohesive force, reduce shrinking percentage, improve anti-chlorine seepage force etc. certain effect is arranged more, and its price is also more cheap.Its addition only needs 3～5% of cement.
Claims (1)
1, a kind of resin type cement modifier is characterized in that: this cement modifier is the pre-crosslinking system that mixes with two kinds of acrylic acid seriess that all have cementability and a film-forming properties or acrylic ester resin emulsion and polyvinyl acetal thing solution, and its prescription is:
Acrylic resin emulsion (solid content 39 ± 1%) 25～50%
Polyvinyl acetal thing solution (10 ± 1%) 50～75%
Perhaps:
Acrylic ester resin emulsion (solid content 39 ± 1%) 25～50%
The polyvinyl alcohol vinegar thing solution (10 ± 1%) 50～75% that contracts
The preparation method is: at normal temperatures and pressures, the two is added reaction vessel by above-mentioned prescription, under agitation thorough mixing is even, the cement modifier of precrosslink structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107704 CN1026228C (en) | 1988-11-07 | 1988-11-07 | multi-effect cement modifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107704 CN1026228C (en) | 1988-11-07 | 1988-11-07 | multi-effect cement modifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1042531A CN1042531A (en) | 1990-05-30 |
| CN1026228C true CN1026228C (en) | 1994-10-19 |
Family
ID=4834754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88107704 Expired - Fee Related CN1026228C (en) | 1988-11-07 | 1988-11-07 | multi-effect cement modifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026228C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4231161A1 (en) * | 1992-09-17 | 1994-03-24 | Hilti Ag | Mortar and device for fixing anchoring means in boreholes |
| CN112456945A (en) * | 2020-12-01 | 2021-03-09 | 肖水 | Preparation process for quick-drying cement |
-
1988
- 1988-11-07 CN CN 88107704 patent/CN1026228C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1042531A (en) | 1990-05-30 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |