CN213506610U - Concrete structure protective layer - Google Patents
Concrete structure protective layer Download PDFInfo
- Publication number
- CN213506610U CN213506610U CN202021350633.2U CN202021350633U CN213506610U CN 213506610 U CN213506610 U CN 213506610U CN 202021350633 U CN202021350633 U CN 202021350633U CN 213506610 U CN213506610 U CN 213506610U
- Authority
- CN
- China
- Prior art keywords
- concrete structure
- protective layer
- layer
- carbonization
- concrete
- 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
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- 239000004567 concrete Substances 0.000 title claims abstract description 48
- 239000011241 protective layer Substances 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 24
- 238000003763 carbonization Methods 0.000 claims abstract description 13
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 12
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000005871 repellent Substances 0.000 claims 2
- 239000003973 paint Substances 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- -1 siloxane organosilicon compound Chemical class 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009257 reactivity Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- NEKPCAYWQWRBHN-UHFFFAOYSA-L magnesium;carbonate;trihydrate Chemical compound O.O.O.[Mg+2].[O-]C([O-])=O NEKPCAYWQWRBHN-UHFFFAOYSA-L 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 235000008113 selfheal Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Abstract
The utility model discloses a concrete structure protective layer, wherein, include concrete structure base member, carbonization protective layer, waterproof layer, screed-coat and the finish coat of arranging by interior to exterior in proper order. The utility model discloses utilize the carbonization reaction of magnesium oxide and carbon dioxide, form the carbonization protective layer, combine siloxane organosilicon compound's reactivity simultaneously, generate the waterproof layer, can show the carbonization corruption that reduces external carbon dioxide and moisture to concrete structure, prolonged concrete structure's life.
Description
Technical Field
The utility model relates to a building structure protection field especially relates to a can prolong protective layer in concrete structure life-span.
Background
As a porous quasi-brittle material, under the action of various environment aggressive media, concrete can be degraded due to complex physical and chemical processes, even internal steel bars are corroded, and further the whole structure is damaged, so that the requirement of the modern concrete structure on durability can not be met, for example, the permeation of carbon dioxide in air to the reinforced concrete can damage a steel bar passivation film and cause the steel bars to rust, the safety of an engineering structure is seriously damaged, and the service life is remarkably shortened. Surface treatment of concrete structures is a necessary and effective way to prevent the erosion of harmful media and to extend the life of the engineered structure.
Disclosure of Invention
In order to overcome the deficiency of the prior art, the utility model aims to solve the technical problem that a protective layer that can be used to extension concrete structure life-span is provided, utilizes the carbonization reaction of nanometer magnesium oxide and carbon dioxide, forms the carbonization protective layer, combines siloxane organosilicon compound's reactivity simultaneously, generates the waterproof layer, can protect external carbon dioxide and moisture to concrete structure's carbonization corrosion, has important meaning to the life-span of extension concrete structure.
The utility model adopts the technical proposal that:
the utility model provides a can prolong protective layer in concrete structure life-span, include carbonization protective layer, waterproof layer, screed-coat and the finish coat by arranging in proper order outside to. The nano magnesium oxide has extremely high specific surface area, high activity and permeability, can be used as a concrete structure carbonization protective layer, can permeate into concrete capillary pores, generates crystallization precipitation in the deep part of a concrete crack, enables the concrete crack to generate self-healing, forms a passivation film, reduces the erosion of external harmful substances to a steel bar, thereby protecting concrete structure engineering and prolonging the service life. The organosilicon waterproof coating is a siloxane organosilicon compound with a certain reactive group, and siloxane with the reactive group can effectively permeate into concrete, so that a waterproof effect is achieved, concrete structure engineering is further protected, and the service life is prolonged.
Preferably, the carbonized protective layer is nano magnesium oxide.
Preferably, the particle size of the nano magnesium oxide is 1-100 nm.
Preferably, the thickness of the magnesium oxide carbonization protection layer is between 0.1 and 0.5 mm.
Preferably, the waterproof layer is a silicone waterproof coating.
Preferably, the thickness of the organic silicon waterproof layer is 0.6-2 mm.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a can be used to prolong protective layer of concrete structure life-span, nanometer magnesium oxide takes place the hydration reaction with water, generates magnesium hydrate crystallization and deposits to fill the crack, the reaction equation is:
MgO+H2O→Mg(OH)2
after the reaction is finished, the magnesium hydroxide, the carbon dioxide and the water continue to perform chemical reaction to generate magnesium carbonate trihydrate and magnesium-rich calcite, the magnesium carbonate trihydrate and the magnesium-rich calcite are crystallized and precipitated at a concrete crack to expand the volume, and a self-healing effect is generated, wherein the reaction equation is as follows:
Mg(OH)2+2H2O+CO2→MgCO3·3H2O
Ca2++Mg2++CO3 2-→CaxMg(1-X)CO3
through the chemical reaction, the nano magnesium oxide with extremely high specific surface area, high activity and permeability can permeate into concrete capillary pores, generate crystallization precipitation in the deep part of a concrete crack, self-heal the concrete crack, form a passivation film and reduce the erosion of external harmful substances to a steel bar, thereby protecting concrete engineering and prolonging the service life.
The organosilicon waterproof coating is a siloxane organosilicon compound with a certain reactive group, siloxane with the reactive group can effectively permeate into concrete, not only can generate dendritic, chain-like and net-like molecules through the interaction of the reactive group to form a net-like hydrophobic siloxane membrane, but also can react with hydroxyl in a silicate substrate to form a silane chain with a terminal group of ≡ Si-R, thus filling micropores in a concrete structure, forming a compact waterproof layer outside the concrete microstructure, reducing the corrosion of the concrete structure by external moisture and prolonging the service life of the concrete structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is the utility model discloses concrete protection structure's structure section view.
Detailed Description
The present invention will be further described with reference to the following detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It should be noted that those whose specific conditions are not specified in the examples were performed under the conventional conditions or the conditions recommended by the manufacturer. The reagents or tools used are not indicated by the manufacturer, and are conventional products available from commercial sources.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a concrete protection architecture.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a concrete protection structure in this embodiment, the concrete structure protection layer includes a concrete structure substrate 100, a carbonization protection layer 101, a waterproof layer 102, a leveling layer 103, and a finishing layer 104, which are sequentially arranged from inside to outside, and the concrete usage is as follows:
1. according to the manufacturer's instructions, nano-magnesia dispersion liquid is prepared, and a spray gun is adopted to spray the concrete 100 to form a carbonization protection layer 101. Before spraying, the surface of the concrete structure base 100 is cleaned and kept dry. When spraying, the distance between the nozzle of the spray gun and the surface of the concrete structure base body 100 is preferably 20-25 cm, the spraying surface is vertical to the surface to be sprayed, and the spraying thickness is not required to be too large each time when the spray gun is manually operated, so that the coating thickness is prevented from being uneven.
2. Preparing organic silicon waterproof base coating and surface coating according to the use instruction of a manufacturer, after finishing carbonizing the protective layer 101 and drying for 2 hours, brushing the organic silicon waterproof base coating and the surface coating by a spray gun or manually to form the waterproof layer 102, wherein the base coating is carried out once, the surface coating is carried out twice or three times, and the thickness of each time is consistent. The base coating is coated on the carbonized protective layer, so that the penetration capability of the waterproof coating into the base layer can be improved, and the bonding performance of the waterproof coating and the base surface is improved. When the first-time organic silicon waterproof surface coating is brushed, the coating is uniformly brushed, the thickness is consistent, the local deposition cannot be realized, the coating is brushed for a plurality of times back and forth, no air bubbles are left between the coating and the base layer, the adhesion is firm, and the brushing sequence is that the vertical surface is arranged first and the plane is arranged later.
3. And after the waterproof layer 102 is finished and dried for 24 hours, constructing the leveling layer 103 and the decorative layer 104 according to the construction specification and the technical requirement.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (6)
1. A concrete structure protective layer is characterized by comprising a concrete structure substrate, a carbonization protective layer, a waterproof layer, a leveling layer and a decorative layer which are sequentially arranged from inside to outside.
2. The protective layer for a concrete structure according to claim 1, wherein said carbonized protective layer is nano magnesium oxide.
3. The protective layer for a concrete structure according to claim 2, wherein the nano magnesium oxide has a particle size of 1 to 100 nm.
4. The protective layer for a concrete structure according to any one of claims 1 to 3, wherein the thickness of the carbonized protective layer is between 0.1 and 0.5 mm.
5. The protective layer for a concrete structure according to claim 1, wherein said water-repellent layer is a silicone water-repellent paint.
6. The protective layer for a concrete structure according to claim 5, wherein the thickness of said silicone waterproof coating material is 0.6 to 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021350633.2U CN213506610U (en) | 2020-07-10 | 2020-07-10 | Concrete structure protective layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021350633.2U CN213506610U (en) | 2020-07-10 | 2020-07-10 | Concrete structure protective layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213506610U true CN213506610U (en) | 2021-06-22 |
Family
ID=76434317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021350633.2U Expired - Fee Related CN213506610U (en) | 2020-07-10 | 2020-07-10 | Concrete structure protective layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213506610U (en) |
-
2020
- 2020-07-10 CN CN202021350633.2U patent/CN213506610U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 338000 1501, 1601 and 1701, building 18 (complex building), Baile village, No. 718, Yuxiu East Avenue, north of the city, Yushui District, Xinyu City, Jiangxi Province Patentee after: Jiangxi Qixin Group Co.,Ltd. Address before: 12 / F-16 / F, block B, Haina Baichuan headquarters building, 6 Baoxing Road, Xin'an street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Qixin Group Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |