CN108250881A - A kind of concrete low water absorption protective agent, preparation method and application process - Google Patents
A kind of concrete low water absorption protective agent, preparation method and application process Download PDFInfo
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- CN108250881A CN108250881A CN201810045133.9A CN201810045133A CN108250881A CN 108250881 A CN108250881 A CN 108250881A CN 201810045133 A CN201810045133 A CN 201810045133A CN 108250881 A CN108250881 A CN 108250881A
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- gross mass
- water absorption
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of concrete low water absorption protective agent, preparation method and application process, the preparation method of the ultralow water absorption rate clear-water concrete protective agent, following steps：High speed dispersion will be added to the water 60~80 minutes after compound inorganic stuffing premixing uniformly; then organic silicon emulsion, modified pure-acrylic emulsion, thickener, preservative are sequentially added; stirring is uniformly mixed it; low speed dispersion stirring 40~after sixty minutes be made ultralow water absorption rate clear-water concrete protective agent; wherein compound inorganic stuffing is the mixture of sericite, calcium carbonate, titanium dioxide, aerosil; compound inorganic stuffing accounts for the 15~30% of gross mass; organic silicon emulsion accounts for the 10~15% of gross mass, and modified pure-acrylic emulsion accounts for the 20~30% of gross mass.The shortcomings that ultralow water absorption rate clear-water concrete protective agent that the present invention obtains can overcome existing clear-water concrete hygroscopic, easy microorganism attachment discoloration has waterproof, the characteristic of ventilative, resistance to environmental change, can significantly improve the durability of clear-water concrete.
Description
Technical field
The present invention relates to clear-water concrete protective agent field more particularly to ultralow water absorption rate clear-water concrete protective agents
And preparation method thereof.
Background technology
With the fast development of society, concrete construction occupies increasingly important role in urban construction.Clearly
Water coagulation soil is as a kind of new concrete newly risen in recent years, because of its unique concrete texture and color and luster, by more
Carry out more concerns.And concrete is a kind of porous structure, have extremely strong water absorption character, concrete can because moisture into
Enter to cause the corrosion of reinforcing bar and cause the reduction of durability, and moisture causes the growth of bacterium that clear-water concrete is caused to become into membership
Color loses original color and luster and texture.Therefore the hydrophobicity of increase clear-water concrete structure is needed, reduces its water absorption rate.And
Existing clear-water concrete protective agent is mostly that a kind of protective layer of densification is formed on the surface of concrete, to reach hydrophobic mesh
's.But this protective agent is because that without gas permeability, can cause the deformation of coating to come off, it is impossible to muchly reach protection concrete
Purpose.
Therefore the technology of preparing of existing clear-water concrete protective agent needs further research and development.
Invention content
In order to overcome existing clear-water concrete hygroscopic, easy microorganism adheres to the shortcomings that changing colour.The of the present invention
One purpose is to provide a kind of preparation method of ultralow water absorption rate clear-water concrete protective agent.
The second object of the present invention is to provide a kind of ultralow water absorption rate clear-water concrete protective agent.
The third object of the present invention is to provide the application process of this ultralow water absorption rate clear-water concrete protective agent.
The first object of the present invention is achieved through the following technical solutions：A kind of protectant preparation side of concrete low water absorption
Method includes the following steps：High speed dispersion will be added to the water 60~80 minutes after compound inorganic stuffing premixing uniformly, Ran Houyi
Secondary addition organic silicon emulsion, modified pure-acrylic emulsion, thickener, preservative, stirring are uniformly mixed it, and low speed dispersion stirring 40~
The clear-water concrete protective agent of ultralow water absorption rate is made after sixty minutes, wherein compound inorganic stuffing is sericite, calcium carbonate, titanium white
The mixture of powder, aerosil, compound inorganic stuffing account for the 15~30% of gross mass, and organic silicon emulsion accounts for the 10 of gross mass
~15%, modified pure-acrylic emulsion accounts for the 20~30% of gross mass.
Sericite in compound inorganic stuffing accounts for the 3~5% of gross mass, and calcium carbonate accounts for the 9~15% of gross mass, titanium dioxide
Account for the 2~7% of gross mass, the 1~3% of aerosil gross mass.
The organic silicon emulsion is isooctyltriethoxysilane lotion.
The modification pure-acrylic emulsion is silicone acrylic emulsion.
The thickener is hydroxyethyl cellulose, accounts for the 1.5~3% of gross mass.
The preservative is Britain's SolPreservative accounts for the 1~3% of gross mass.
The second object of the present invention is that a kind of concrete low water absorption protective agent is made by above-mentioned method to realize.
The third object of the present invention is poured and has been torn open by the way that concrete low water absorption protective agent obtained is coated on
The drying faced concrete surface of mould is realized.
The ultralow water absorption rate clear-water concrete protective agent of the present invention has the following advantages that：
The present invention is based on small molecule silicone molecules can penetrate into concrete pore, is crosslinked in its duct anti-
Should, hydrophobic alkyl chain does not block duct towards inside hole, and achieving the purpose that can be hydrophobic and breathable.And silicon third
Lotion has easily film forming and anti-aging property, it is compound with organic silicon emulsion, and adds other corresponding auxiliary agents, prepares excess of export
Low water absorption clear-water concrete protective agent disclosure satisfy that the requirement of modern clear-water concrete durability extended protection.The present invention's
Production equipment is simple, and operating process is convenient, Product Green environmental protection.In the waterproof durability protection of clear-water concrete, have anti-
Water, the characteristic of ventilative, resistance to environmental change can significantly improve the durability of clear-water concrete.
Specific embodiment
The present invention is described in further detail with reference to example, but the embodiment invented is without being limited thereto.
By following component and content dispensing：
Table 1
Embodiment 1
A kind of ultralow water absorption rate clear-water concrete protective agent, is prepared by following methods：
(1) dispensing is carried out by table 1.
(2) the speed high speed dispersion 80 minutes with 1000 revs/min will be added to the water after compound inorganic stuffing 150g mixings, so
It is 600 revs/min to reduce rate of dispersion afterwards, sequentially adds organic silicon emulsion BS43N150g, silicone acrylic emulsion A-79 (B) 300g, increasing
Thick dose of hydroxyethyl cellulose 15g, MV preservative 15g is stirred 40 minutes, you can obtains the clear-water concrete protection of ultralow water absorption rate
Agent.
Performance test：
Coated in concrete surface, water absorption rate (48h) reduces by 93% compared with benchmark test specimen；Resistance to artificial climate (5000h) is apparent
It is intact；Water resistance (192h) is apparent intact.
Embodiment 2
A kind of ultralow water absorption rate clear-water concrete protective agent, is prepared by following methods：
(1) dispensing is carried out by table 1.
(2) the speed high speed dispersion 70 minutes with 1200 revs/min will be added to the water after compound inorganic stuffing 280g mixings, so
It is 500 revs/min to reduce rate of dispersion afterwards, sequentially adds organic silicon emulsion BS45130g, silicone acrylic emulsion A-79 (B) 280g, hydroxyl
Ethylene cellulose thicker 24g, MV preservative 20g etc. is stirred 50 minutes, you can the clear-water concrete for obtaining ultralow water absorption rate is protected
Protect agent.
Performance test：
Coated in concrete surface, water absorption rate (48h) reduces by 85% compared with benchmark test specimen；Resistance to artificial climate (5500h) is apparent
It is intact；Water resistance (192h) is apparent intact.
Embodiment 3
A kind of ultralow water absorption rate clear-water concrete protective agent, is prepared by following methods：
(1) dispensing is carried out by table 1.
(2) the speed high speed dispersion 75 minutes with 1100 revs/min will be added to the water after compound inorganic stuffing 235g mixings, so
It is 550 revs/min to reduce rate of dispersion afterwards, sequentially adds organic silicon emulsion BS43N140g, silicone acrylic emulsion A-79 (B) 250g, hydroxyl
Ethylene cellulose thicker 16g, MV preservative 18g is stirred 55 minutes, you can obtains the clear-water concrete protection of ultralow water absorption rate
Agent.
Performance test：
Coated in concrete surface, water absorption rate (48h) reduces by 94% compared with benchmark test specimen；Resistance to artificial climate (5000h) is apparent
It is intact；Water resistance (192h) is apparent intact.
Case study on implementation 4
A kind of ultralow water absorption rate clear-water concrete protective agent, is prepared by following methods：
(1) dispensing is carried out by table 1.
(2) the speed high speed dispersion 72 minutes with 1150 revs/min will be added to the water after compound inorganic stuffing 215g mixings, so
It is 400 revs/min to reduce rate of dispersion afterwards, sequentially adds organic silicon emulsion BS45135g, silicone acrylic emulsion A-79 (B) 260g, hydroxyl
Ethylene cellulose thicker 20g, MV preservative 14g etc. is stirred 60 minutes, you can the clear-water concrete for obtaining ultralow water absorption rate is protected
Protect agent.
Performance test：
Coated in concrete surface, water absorption rate (48h) reduces by 90% compared with benchmark test specimen；Resistance to artificial climate (5500h) is apparent
It is intact；Water resistance (192h) is apparent intact.
Claims (8)
1. a kind of protectant preparation method of concrete low water absorption, it is characterised in that include the following steps：Composite inorganic is filled out
Be added to the water high speed dispersion 60~80 minutes after material premixing uniformly, then sequentially add organic silicon emulsion, modified pure-acrylic emulsion,
Thickener, preservative, stirring make its be uniformly mixed, low speed dispersion stirring 40~after sixty minutes be made ultralow water absorption rate clear water mix
Solidifying soil protective agent, wherein compound inorganic stuffing are sericite, the mixture of calcium carbonate, titanium dioxide, aerosil, compound nothing
Machine filler accounts for the 15~30% of gross mass, and organic silicon emulsion accounts for the 10~15% of gross mass, and modified pure-acrylic emulsion accounts for gross mass
20~30%.
2. according to the method described in claim 1, it is characterized in that：Sericite in compound inorganic stuffing account for gross mass 3~
5%, calcium carbonate accounts for the 9~15% of gross mass, and titanium dioxide accounts for the 2~7% of gross mass, aerosil gross mass 1~
3%.
3. according to the method described in claim 1, it is characterized in that：The organic silicon emulsion is isooctyltriethoxysilane
Lotion.
4. according to the method described in claim 1, it is characterized in that：The modification pure-acrylic emulsion is silicone acrylic emulsion.
5. according to the method described in claim 1, it is characterized in that：The thickener is hydroxyethyl cellulose, accounts for gross mass
1.5~3%.
6. according to the method described in claim 1, it is characterized in that：The preservative is Britain's SolMv anti-corrosions
Agent accounts for the 1~3% of gross mass.
7. the concrete low water absorption protective agent as made from claim 1~6 any method.
8. the protectant application process of concrete low water absorption described in claim 7, it is characterised in that：By obtained coagulation
Native low water absorption protective agent is coated on and pours and the drying faced concrete surface of form removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045133.9A CN108250881A (en) | 2018-01-17 | 2018-01-17 | A kind of concrete low water absorption protective agent, preparation method and application process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045133.9A CN108250881A (en) | 2018-01-17 | 2018-01-17 | A kind of concrete low water absorption protective agent, preparation method and application process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108250881A true CN108250881A (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810045133.9A Pending CN108250881A (en) | 2018-01-17 | 2018-01-17 | A kind of concrete low water absorption protective agent, preparation method and application process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358380A (en) * | 2019-04-24 | 2019-10-22 | 深圳市朗奥洁净科技股份有限公司 | Water paint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134443A (en) * | 2010-01-26 | 2011-07-27 | 北京建筑材料科学研究总院有限公司 | Method for preparing clear water concrete protectant |
| CN103922800A (en) * | 2014-03-14 | 2014-07-16 | 上海市建筑科学研究院(集团)有限公司 | Protective agent for clear water concrete |
| CN104086220A (en) * | 2014-06-30 | 2014-10-08 | 北京市蓝宝新技术有限公司 | Clean water concrete surface layer repairing protecting agent and preparation method thereof |
| CN105623502A (en) * | 2016-03-29 | 2016-06-01 | 上海科焱建筑装饰工程有限公司 | Coating for surface protection of bare concrete |
-
2018
- 2018-01-17 CN CN201810045133.9A patent/CN108250881A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134443A (en) * | 2010-01-26 | 2011-07-27 | 北京建筑材料科学研究总院有限公司 | Method for preparing clear water concrete protectant |
| CN103922800A (en) * | 2014-03-14 | 2014-07-16 | 上海市建筑科学研究院(集团)有限公司 | Protective agent for clear water concrete |
| CN104086220A (en) * | 2014-06-30 | 2014-10-08 | 北京市蓝宝新技术有限公司 | Clean water concrete surface layer repairing protecting agent and preparation method thereof |
| CN105623502A (en) * | 2016-03-29 | 2016-06-01 | 上海科焱建筑装饰工程有限公司 | Coating for surface protection of bare concrete |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358380A (en) * | 2019-04-24 | 2019-10-22 | 深圳市朗奥洁净科技股份有限公司 | Water paint |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
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