CN1026228C - Multi-efficiency cement modifier - Google Patents
Multi-efficiency 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
- cement
- ester resin
- acrylic ester
- acrylic
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a multi-efficiency cement modification agent which belong to acrylic acid and acrylic ester resin emulsion. The modification agent is a pre-crosslinking system which is manufactured by using the acrylic acid or acrylic ester resin emulsion having film-forming capability and bonding performance to be mixed with polyvinyl acetal substance solution. The system has the favorable hydrophilicity, film-forming capability and bonding performance, and the system comprises various functional genes; thereby, the bonding force of cement, sand and mortar to steel bars can be improved, and the present invention has the various properties of water reduction, early strength, rust prevention, shrinkage reduction, etc.
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-efficiency cement modifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107704 CN1026228C (en) | 1988-11-07 | 1988-11-07 | Multi-efficiency 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-efficiency 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Aslamazova | Emulsifier-free latexes and polymers on their base | |
| CN1137165C (en) | Branched polymer contg. imidazolyl, producing method and use thereof | |
| CN1202192A (en) | Improved drying shrinkage cement admixture | |
| CN109134783B (en) | Air-entraining type polycarboxylate superplasticizer and preparation method thereof | |
| US4722976A (en) | Macromonomer-based polymer concrete compositions | |
| CN107722191A (en) | The poly carboxylic acid series water reducer and its synthetic method that a kind of xylitol is modified | |
| JPH01145358A (en) | Cement dispersant | |
| CN1026228C (en) | Multi-efficiency cement modifier | |
| CN105712650A (en) | Method for preparing high-adaptability polycarboxylate water-reducing agent | |
| JP2001151942A (en) | Asphalt reforming agent comprising styrene-butadiene- styrene block copolymer and styrene-butadiene latex | |
| CN111978461B (en) | Water-based functional acrylic resin and preparation method thereof | |
| EP0401200B1 (en) | Copolymer and its use | |
| CN102206314B (en) | Polycarboxylic acid and application thereof, and cement water reducing agent containing polycarboxylic acid | |
| WO1985000802A1 (en) | Concrete composition for underwater application | |
| CN110951011A (en) | Preparation method of anti-mud polycarboxylic acid sustained-release agent for concrete | |
| CN111285965A (en) | Slow-release concrete water-retaining agent and preparation method thereof | |
| EP0470650A2 (en) | Water-absorbent polymer and its method of production | |
| CN102093522A (en) | Polycarboxylic acid, use thereof and water reducer containing same | |
| CN114292367B (en) | Mud-resistant water-retaining polycarboxylate water reducer for machine-made sand concrete and preparation method thereof | |
| JP4152984B2 (en) | (Meth) acrylic resin emulsion and production method thereof | |
| CN1148403A (en) | Polymerizable composition | |
| CN113336964B (en) | Modified emulsified asphalt for normal temperature cold state asphalt pavement and preparation method thereof | |
| CN112079591B (en) | Method for synthesizing environment-responsive polymer by copolymerization modification of alkenyl sulfonate monomer | |
| US4508572A (en) | Cement composition for laying underwater | |
| JPH0971448A (en) | Polymer concrete containing incineration ash and secondary product produced from polymer concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |