CN105967566A - Double-component concrete anti-carbonization coating and preparation method thereof - Google Patents
Double-component concrete anti-carbonization coating and preparation method thereof Download PDFInfo
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- CN105967566A CN105967566A CN201610308941.0A CN201610308941A CN105967566A CN 105967566 A CN105967566 A CN 105967566A CN 201610308941 A CN201610308941 A CN 201610308941A CN 105967566 A CN105967566 A CN 105967566A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a double-component concrete anti-carbonization coating and a preparation method thereof. An A component is an acrylic copolymer emulsion with the solid content of 46 to 48 percent, a PH value of 7.0 to 9.0, and the viscosity of 100 to 300mpa.s; a B component is a pre-mixed dry blend comprising 300 to 650 parts by weigt of cement, 150 to 650 parts by weight of quartz powder, 1 to 6 parts by weight of polycarboxylic acid super plasticizer, 1 to 10 by weight parts of P803 defoamer, 0.5 to 6 parts by weight of organosilicone moisture repellent, 10 to 20 parts by weight of silica fume, and 20 to 50 parts by weight of superfine mineral powder. The double-component concrete anti-carbonization coating provided by the invention is an acrylic acid copolymer emulsion modified cement based composite material, which not only keeps the advantages of easiness in obtaining inorganic materials, good durability, environment friendliness, and cheap price, but also exerts superiorities in high flexibility of high polymer materials.
Description
Technical field
The invention belongs to engineering material technical field, be specifically related to a kind of double-component concrete carbonization preventing paint
And preparation method.
Background technology
The class concrete carbonization preventing paint such as silane and epoxy, though there being good anti-carbonization effect, but its conduct
Organic material is because of its intrinsic feature so that self durability of this series products is subject to certain restrictions；In addition
Such product market price is of a relatively high, affects construction costs to a certain extent.
Summary of the invention
In order to solve the problem of existing concrete carbonization preventing paint poor durability, the present invention provides a kind of double group
Part concrete carbonization preventing paint and preparation method.
The purpose of the present invention is achieved through the following technical solutions: a kind of double-component concrete carbonization preventing paint,
Including component A and B component, described component A is acrylic copolymer emulsions, solid content 46～48%,
PH value 7.0～9.0, viscosity 100～300mpa.s；Described B component is premixing dry blend, and its component is former
Material includes: cement 300～650 weight portion, silica flour 150～650 weight portion, polycarboxylic acid are super plasticized
Agent 1～6 weight portion, P803 defoamer 1～10 weight portion, organosilicon moisture repellent 0.5～6 weight portion,
Silicon ash 10～20 weight portions, super finely ground slag 20～50 weight portion.
The preparation method of a kind of double-component concrete carbonization preventing paint, presses A: B during use: water=1: 2:
The part by weight of (0～0.2) stirs and can be coated with.
Operation principle and work process describe: when mixing and stirring concrete, the Main Ingredients and Appearance calcium silicates aquation of cement
Rear generation hydrated calcium silicate gel (C-H-S), separates out Ca (OH) 2 in concrete pore night, and it is at water
In dissolubility low, except being dissolved in Pore Solution on a small quantity, make Pore Solution become outside saturated alkaline solution, big portion
Dividing and exist with crystalline state, become Pore Solution and keep overbasic deposit, its pH value is 12.5～13.5.
CO2 gas in air is constantly through the coarse wool tubulus of water-filling incomplete in concrete, gas phase diffusion
In concrete in the pore of part water-filling, during the Ca (OH) 2 dissolved with Pore Solution therein is carried out
And reaction.Product is CaCO3 and H2O, and CaCO3 dissolubility is low, is deposited in pore.
After reaction, the hydrated calcium silicate gel complement lysis in pore ambient water mudstone is Ca2+ and OH-,
Reversely being diffused in Pore Solution, the CO2 come in continuation diffusion reacts, until the pH value of Pore Solution
When reducing to 8.5～9.0, the pore of this layer concrete the most no longer carries out this neutralization and reacts, be now
So-called " carbonization ".Exactly, carbonization should be referred to as carbonation.It addition, every can be with Ca (OH) 2
It is neutralized all sour gas of reaction, such as SO2, SO3, H2S to such an extent as to gas phase HCI etc., all
Above-mentioned neutralization reaction can be carried out, make concrete basicity reduce, thus concrete carbonization should be broadly referred to as " in
Property ".And alkaline medium has good protective effect to reinforcing bar, rebar surface is made to generate the Fe2O3 of indissoluble
And Fe3O4, referred to as passivating film.After concrete surface layer carbonization, the CO2 in air continues along concrete
The capillary channel of incomplete water-filling, to concrete depths gas phase diffusion, carries out carburizing reagent deeper into ground.When
When carbonization exceedes the protective layer of concrete, under conditions of water exists with air, concrete will be made to lose right
The protective effect of reinforcing bar, reinforcing bar starts to get rusty.
After this double-component concrete carbonization preventing paint spreads, form polymer water at concrete surface
Mud hydrated product pass network structure mutually, produce cohesiveness and the adhesive force of chemistry and mechanical bond, mixed
Solidifying soil surface forms one layer of high-strength tough and tensile durable elastic coating protective layer being combined with it solidly, can be effective
Stop in environment the hazardous mediums such as carbon dioxide, sulfide, acid rain, chloride ion that xoncrete structure is invaded
Erosion.
This double-component concrete carbonization preventing paint is the water that a kind of acrylic copolymer macromolecule emulsion is modified
Cement-based composite material, both remained inorganic material be easy to get, good endurance (generally than silane and epoxies with
Series products life-span length 10～15 years), environmental friendliness, low price (the most only silane and epoxies with
The 30 of series products cost～40%) advantage, has played again the advantage of macromolecular material high-flexibility.
The medicine have the advantages that double-component concrete carbonization preventing paint of the present invention is that a kind of acrylic compounds is total to
The cement-base composite material that poly-macromolecule emulsion is modified, both remained inorganic material be easy to get, good endurance,
Environmental friendliness, low-cost advantage, play again the advantage of macromolecular material high-flexibility.This double
After component concrete carbonization preventing paint spreads, form polymer cement hydrated product at concrete surface
Pass network structure mutually, produce cohesiveness and the adhesive force of chemistry and mechanical bond, in concrete surface shape
Become one layer of high-strength tough and tensile durable elastic coating protective layer being combined with it solidly, can effectively stop in environment
The hazardous medium erosions to xoncrete structure such as carbon dioxide, sulfide, acid rain, chloride ion.
Specific implementation method
The present invention is described further in conjunction with the embodiments.
The present invention relates to a kind of double-component concrete carbonization preventing paint.Double-component concrete carbonization preventing of the present invention
Coating, component A is acrylic copolymer emulsions, solid content 46～48%, pH value 7.0～9.0, viscous
Degree 100～300mpa.s；B component is premixing dry blend, and its component raw material includes: cement 300～650
Weight portion, silica flour 150～650 weight portion, polycarboxylic acid super plasticizer 1～6 weight portion, P803 disappear
Infusion 1～10 weight portion, organosilicon moisture repellent 0.5～6 weight portion.Silicon ash 10～20 weight portions are super
Mineral fine 20～50 weight portion.A: B is pressed: water=1: 2: the part by weight of (0～0.2) during use
Stir and can be coated with.
Example one
A kind of double-component concrete carbonization preventing paint, component A acrylic copolymer emulsions, solid content 46
～48%, pH value 7.0～9.0, viscosity 100～300mpa.s；B component parts by weight are shown in Table one
Table one
Coating proportioning A: B: water=1: 2: 0.1
Implementation result is shown in Table five.
Example two:
A kind of double-component concrete carbonization preventing paint, component A acrylic copolymer emulsions, solid content 46～48%,
PH value 7.0～9.0, viscosity 100～300mpa.s；B component parts by weight are shown in Table two
Table two
Coating proportioning A: B: water=1: 2: 0.1
Implementation result is shown in Table five.
Example three:
A kind of double-component concrete carbonization preventing paint, component A acrylic copolymer emulsions, solid content 46～48%,
PH value 7.0～9.0, viscosity 100～300mpa.s；B component parts by weight are shown in Table three
Table three
Coating proportioning A: B: water=1: 2: 0.1
Implementation result is shown in Table five.
Example four:
A kind of double-component concrete carbonization preventing paint, component A acrylic copolymer emulsions, solid content 46～48%,
PH value 7.0～9.0, viscosity 100～300mpa.s；B component parts by weight are shown in Table four
Table four
Coating proportioning A: B: water=1: 2: 0.1
Implementation result is shown in Table five.
Table five
In this description, the present invention is described with reference to its specific embodiment.But it is clear that
Still various modifications may be made and conversion is without departing from the spirit and scope of the present invention.Therefore, description should
It is considered as illustrative and not restrictive.
Claims (2)
1. a double-component concrete carbonization preventing paint, it is characterised in that include component A and B component, described A
Component is acrylic copolymer emulsions, solid content 46～48%, pH value 7.0～9.0, viscosity 100～
300mpa.s；Described B component is premixing dry blend, and its component raw material includes: cement 300～650 weight
Part, silica flour 150～650 weight portion, polycarboxylic acid super plasticizer 1～6 weight portion, P803 defoamer
1～10 weight portions, organosilicon moisture repellent 0.5～6 weight portion, silicon ash 10～20 weight portions, super finely ground slag
20～50 weight portions.
2. the preparation method of the double-component concrete carbonization preventing paint described in a claim 1, it is characterised in that
By A: B during use: water=1: 2: the part by weight of (0～0.2) stirs and can be coated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308941.0A CN105967566A (en) | 2016-05-11 | 2016-05-11 | Double-component concrete anti-carbonization coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308941.0A CN105967566A (en) | 2016-05-11 | 2016-05-11 | Double-component concrete anti-carbonization coating and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105967566A true CN105967566A (en) | 2016-09-28 |
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ID=56992931
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610308941.0A Pending CN105967566A (en) | 2016-05-11 | 2016-05-11 | Double-component concrete anti-carbonization coating and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105967566A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925675A (en) * | 2020-07-07 | 2020-11-13 | 深圳市奇信集团股份有限公司 | Concrete anti-carbonization environment-friendly coating and construction method |
| CN112979256A (en) * | 2021-02-25 | 2021-06-18 | 山东创元水务有限公司 | Concrete anti-carbonization mortar treatment process |
| CN115073948A (en) * | 2022-07-04 | 2022-09-20 | 中德新亚建筑材料有限公司 | Concrete surface anti-carbonization coating and preparation process thereof |
| CN115558360A (en) * | 2022-10-27 | 2023-01-03 | 中德新亚建筑材料有限公司 | Color-adjustable waterproof and carbonization-resistant concrete coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701662A (en) * | 2012-01-05 | 2012-10-03 | 北京东方雨虹防水技术股份有限公司 | Two-component cement-based polymer rigid waterproof mortar |
| CN103601441A (en) * | 2013-10-31 | 2014-02-26 | 德高（广州）建材有限公司 | Carbonization-resistant waterproof slurry |
| CN104591657A (en) * | 2015-02-13 | 2015-05-06 | 中国科学院海洋研究所 | Polymer-modified cement-based dual-component protection mortar for surface layer of flexible concrete |
-
2016
- 2016-05-11 CN CN201610308941.0A patent/CN105967566A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701662A (en) * | 2012-01-05 | 2012-10-03 | 北京东方雨虹防水技术股份有限公司 | Two-component cement-based polymer rigid waterproof mortar |
| CN103601441A (en) * | 2013-10-31 | 2014-02-26 | 德高（广州）建材有限公司 | Carbonization-resistant waterproof slurry |
| CN104591657A (en) * | 2015-02-13 | 2015-05-06 | 中国科学院海洋研究所 | Polymer-modified cement-based dual-component protection mortar for surface layer of flexible concrete |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925675A (en) * | 2020-07-07 | 2020-11-13 | 深圳市奇信集团股份有限公司 | Concrete anti-carbonization environment-friendly coating and construction method |
| CN112979256A (en) * | 2021-02-25 | 2021-06-18 | 山东创元水务有限公司 | Concrete anti-carbonization mortar treatment process |
| CN115073948A (en) * | 2022-07-04 | 2022-09-20 | 中德新亚建筑材料有限公司 | Concrete surface anti-carbonization coating and preparation process thereof |
| CN115558360A (en) * | 2022-10-27 | 2023-01-03 | 中德新亚建筑材料有限公司 | Color-adjustable waterproof and carbonization-resistant concrete coating and preparation method thereof |
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Application publication date: 20160928 |
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