CN106436565A - Concrete protection coating and concrete protection method - Google Patents
Concrete protection coating and concrete protection method Download PDFInfo
- Publication number
- CN106436565A CN106436565A CN201610807125.4A CN201610807125A CN106436565A CN 106436565 A CN106436565 A CN 106436565A CN 201610807125 A CN201610807125 A CN 201610807125A CN 106436565 A CN106436565 A CN 106436565A
- Authority
- CN
- China
- Prior art keywords
- concrete
- layer
- protected
- enamelled coating
- coating
- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 117
- 238000000576 coating method Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000003973 paint Substances 0.000 claims abstract description 39
- 239000010410 layer Substances 0.000 claims description 120
- 239000000565 sealant Substances 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 41
- 238000005728 strengthening Methods 0.000 claims description 16
- 239000012790 adhesive layer Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract 3
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 description 10
- 229920002635 polyurethane Polymers 0.000 description 10
- 239000011253 protective coating Substances 0.000 description 7
- 238000006253 efflorescence Methods 0.000 description 6
- 206010037844 rash Diseases 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- -1 referring to Fig. 1 Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a concrete protection coating and a concrete protection method, and belongs to the technical field of concrete protection. The concrete protection coating comprises a sealing paint layer, a primer layer and a finish paint layer, wherein the sealing paint layer is arranged on the concrete layer to be protected; the primer layer is arranged on the sealing paint layer; the finish paint layer is arranged on the primer layer; the dry film thickness of the primer layer is greater than or equal to 100[mu]m; and the dry film thickness of the finish paint layer is greater than or equal to 10[mu]m. The concrete protection coating can quickly form a protection layer on the concrete to protect the concrete and effectively prevent concrete pulverization.
Description
Technical field
The present invention relates to concrete protection technical field, particularly to a kind of concrete protection coating and concrete protection side
Method.
Background technology
The Meteorological of Northeast Heavy Frigid Region of China is annual range of temperature and day and night temperature is all larger, and weather conditions are severe.Year is maximum warm
Difference is about 60 DEG C, and maximum temperature difference is close to 20 DEG C round the clock.Under high and cold Freezing-Melting Condition, high-speed railway bridge bridge deck water-proof protective layer mixes
Solidifying soil easily endure cold freezing and expansion so that surface concrete is endured cold efflorescence, come off, fall block, cause when serious reinforcing bar leakage and corrode,
Have a strong impact on the durability of bridge deck concrete structure.Accordingly, it would be desirable to renovate to bridge deck water-proof cover concrete efflorescence
And prevention.For common railway bridge, can using cement mortar repair bridge floor water conservation concrete layer efflorescence, however it is necessary that support
The shield time is longer.And for high-speed railway bridge, because construction is limited by skylight point (4 hours), also do not have at present
There is a kind of quick, effective, ripe regulation method for repairing and mending.
Content of the invention
In order to solve problem of the prior art, embodiments provide a kind of concrete protection coating and concrete is prevented
Maintaining method.Described technical scheme is as follows：
In a first aspect, embodiments providing a kind of concrete protection coating, including：1st, a kind of concrete protection applies
Layer is it is characterised in that described concrete protection coating includes：Closing enamelled coating, bottom surface enamelled coating and paint layer from surface；
Described closing enamelled coating is used for being arranged on concrete layer to be protected, and described bottom surface enamelled coating is arranged on described seal coat
On, described paint layer from surface is arranged on the enamelled coating of described bottom surface；
The build of described bottom surface enamelled coating is more than or equal to 100um, and the build of described paint layer from surface is more than or waits
In 100um.
Alternatively, when the intensity of described concrete layer to be protected is more than or equal to C20, described concrete protection coating also includes
Screed-coat；
Described screed-coat is arranged between described concrete layer to be protected and described closing enamelled coating.
Alternatively, when the intensity of described concrete layer to be protected is more than or equal to C10 and less than C20, described concrete is prevented
Shield coating also includes strengthening course；
Described strengthening course is arranged between described concrete layer to be protected and described closing enamelled coating.
Alternatively, described concrete protection coating also includes the first sealant layer；
Described first sealant layer is arranged on described concrete layer to be protected and treats the anti-junction protecting body side surface, described envelope
Close enamelled coating to be additionally arranged on described first sealant layer.
Alternatively, described concrete protection coating also includes the second sealant layer and backing material；
Described backing material and the second sealant layer be filled in described concrete layer to be protected and treat anti-guarantor's body side surface it
Between expansion joint in, and described second sealant layer is arranged on described backing material, and described closing enamelled coating is arranged on described
On second sealant layer.
Second aspect, the embodiment of the present invention additionally provides a kind of concrete protection method, including：
Clear up concrete surface to be protected；
Closing enamelled coating is formed on described concrete surface to be protected；
Described closing enamelled coating forms bottom surface enamelled coating, wherein, the build of described bottom surface enamelled coating is more than or equal to
100um；
Described bottom surface enamelled coating forms paint layer from surface, wherein, the build of described paint layer from surface is more than or equal to
100um.
Alternatively, when the intensity of described concrete layer to be protected is more than or equal to C20, in described concrete surface to be protected
The upper closing enamelled coating that formed is specially：
Described concrete surface to be protected forms screed-coat, described closing enamelled coating is formed on described screed-coat.
Alternatively, when the intensity of described concrete layer to be protected is more than or equal to C10 and less than C20, described to be protected
Closing enamelled coating is formed on concrete surface be specially：
Described concrete surface to be protected forms strengthening course, described closing enamelled coating is formed on described strengthening course.
Alternatively, methods described also includes：
In described concrete layer to be protected with treat that the anti-junction protecting body side surface forms the first sealant layer, and described the
Described closing enamelled coating is formed on one sealant layer.
Alternatively, methods described also includes：
Described concrete layer to be protected and treat anti-protect body side surface between expansion joint in fill described backing material and
Second sealant layer, wherein, described second sealant layer is formed on described backing material, and in described second sealant layer
The described closing enamelled coating of upper formation.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The concrete protection coating that the present invention provides, is used for being arranged on concrete layer to be protected, bottom by closing enamelled coating
Top coat layer is arranged on seal coat, and paint layer from surface is arranged on the enamelled coating of bottom surface；The build of bottom surface enamelled coating is more than or equal to
100um, the build of paint layer from surface is more than or equal to 100um.So, this concrete protection coating can be rapidly in coagulation
Form protective layer on soil, concrete is protected, is effectively prevented concrete efflorescence.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of concrete protective coating structure schematic diagram provided in an embodiment of the present invention；
Fig. 2 is another kind concrete protective coating structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 is another kind concrete protective coating structure schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another kind concrete protective coating structure schematic diagram provided in an embodiment of the present invention；
Fig. 5 is another kind concrete protective coating structure schematic diagram provided in an embodiment of the present invention.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
Embodiments provide a kind of concrete protection coating, referring to Fig. 1, concrete protection coating includes：Closing
Enamelled coating, bottom surface enamelled coating and paint layer from surface；
Described closing enamelled coating is used for being arranged on concrete layer to be protected, and described bottom surface enamelled coating is arranged on described seal coat
On, described paint layer from surface is arranged on the enamelled coating of described bottom surface；
The build of described bottom surface enamelled coating is more than or equal to 100um, and the build of described paint layer from surface is more than or waits
In 100um.
In the present embodiment, alternatively, the material of described closing enamelled coating is epoxy-like materials or polyurethane material；Institute
The material stating bottom surface enamelled coating is scumbling type polyurethane underwater paint；The material of described paint layer from surface is polyurethane water-proof paint.Wherein, thin
Apply type polyurethane underwater paint and be specifically as follows scumbling type modified polyurethane underwater paint, for example, PPU-M1 type and PPU-M2 type.
Referring to Fig. 2, alternatively, for preventing concrete surface to be protected because of defects such as crack, honeycomb, pitted skin and faulting of slab ends no
When method directly lays closing enamelled coating, and when the intensity of described concrete layer to be protected is more than or equal to C20, described concrete protection applies
Layer also includes screed-coat；
Described screed-coat is arranged between described concrete layer to be protected and described closing enamelled coating.
Wherein, described screed-coat is specially and enters the water-base epoxy material of combination or poly- ammonia with concrete surface to be protected
Esters material.
Referring to Fig. 3, alternatively, when the intensity of described concrete layer to be protected is more than or equal to C10 and is less than C20, it is anti-
Only there is disease in concrete layer to be protected again, and described concrete protection coating also includes strengthening course；
Described strengthening course is arranged between described concrete layer to be protected and described closing enamelled coating.
Alternatively, the material of described strengthening course is polymer-modified cement mortar or high osmosis resin.
In addition, when the intensity of described concrete layer to be protected is less than C10, answering thorough cleaning concrete layer to be protected, it
Afterwards, again construct, then carry out the construction of this concrete protection coating.
Referring to Fig. 4, when concrete layer to be protected and jointless between anti-guarantor's body side surface, alternatively, described coagulation
Native protective coating also includes the first sealant layer；
Described first sealant layer is arranged on described concrete layer to be protected and treats the anti-junction protecting body side surface, described envelope
Close enamelled coating to be additionally arranged on described first sealant layer.
Wherein, the material of the first sealant layer includes fluid sealant.
Referring to Fig. 5, when when concrete layer to be protected and having expansion joint between anti-guarantor's body side surface, alternatively, described coagulation
Native protective coating also includes the second sealant layer and backing material；
Described backing material and the second sealant layer be filled in described concrete layer to be protected and treat anti-guarantor's body side surface it
Between expansion joint in, and described second sealant layer is arranged on described backing material, and described closing enamelled coating is arranged on described
On second sealant layer.
Wherein, the material of backing material can be foam class implant, and the material of the second sealant layer includes fluid sealant.
In the present embodiment, according to practical situation, described concrete protection coating may comprise screed-coat, closing enamelled coating,
Several or whole in bottom surface enamelled coating, paint layer from surface, strengthening course, the first sealant layer, the second sealant layer and backing material.
The concrete protection coating that the present embodiment provides, is used for being arranged on concrete layer to be protected by closing enamelled coating,
Bottom surface enamelled coating is arranged on seal coat, and paint layer from surface is arranged on the enamelled coating of bottom surface；The build of bottom surface enamelled coating is more than or equal to
100um, the build of paint layer from surface is more than or equal to 100um.So, this concrete protection coating can be rapidly in coagulation
Form protective layer on soil, concrete is protected, is effectively prevented concrete efflorescence.
Embodiment two
The embodiment of the present invention additionally provides a kind of concrete protection method, referring to Fig. 1, including：
Clear up concrete surface to be protected；
Closing enamelled coating is formed on described concrete surface to be protected；
Described closing enamelled coating forms bottom surface enamelled coating, wherein, the build of described bottom surface enamelled coating is more than or equal to
100um；
Described bottom surface enamelled coating forms paint layer from surface, wherein, the build of described paint layer from surface is more than or equal to
100um.
In the present embodiment, alternatively, the material of described closing enamelled coating is epoxy-like materials or polyurethane material；Institute
The material stating bottom surface enamelled coating is scumbling type polyurethane underwater paint；The material of described paint layer from surface is polyurethane water-proof paint.Wherein, thin
Apply type polyurethane underwater paint and be specifically as follows scumbling type modified polyurethane underwater paint, for example, PPU-M1 type and PPU-M2 type.
Referring to Fig. 2, alternatively, for preventing concrete surface to be protected because of defects such as crack, honeycomb, pitted skin and faulting of slab ends no
When method directly lays closing enamelled coating, and when the intensity of described concrete layer to be protected is more than or equal to C20, in described coagulation to be protected
Closing enamelled coating is formed on soil layer surface be specially：
Described concrete surface to be protected forms screed-coat, described closing enamelled coating is formed on described screed-coat.
Wherein, described screed-coat is specially and enters the water-base epoxy material of combination or poly- ammonia with concrete surface to be protected
Esters material.
Referring to Fig. 3, alternatively, when the intensity of described concrete layer to be protected is more than or equal to C10 and is less than C20, it is anti-
Only there is disease in concrete layer to be protected again, when the intensity of described concrete layer to be protected is more than or equal to C10 and is less than C20
When, closing enamelled coating is formed on described concrete surface to be protected and is specially：
Described concrete surface to be protected forms strengthening course, described closing enamelled coating is formed on described strengthening course.
Alternatively, the material of described strengthening course is polymer-modified cement mortar or high osmosis resin.
In addition, when the intensity of described concrete layer to be protected is less than C10, answering thorough cleaning concrete layer to be protected, it
Afterwards, again construct, then carry out the construction of this concrete protection coating.
Referring to Fig. 4, when concrete layer to be protected and jointless between anti-guarantor's body side surface, alternatively, methods described
Also include：
Form the first sealant layer in described concrete layer to be protected and the described junction treating anti-guarantor's body side surface, and in institute
State and described closing enamelled coating is formed on the first sealant layer.
Wherein, the material of the first sealant layer includes fluid sealant.
Referring to Fig. 5, when when concrete layer to be protected and having expansion joint between anti-guarantor's body side surface, alternatively, methods described
Also include：
Described concrete layer to be protected and treat anti-protect body side surface between expansion joint in fill described backing material and
Second sealant layer, wherein, described second sealant layer is formed on described backing material, and in described second sealant layer
The described closing enamelled coating of upper formation.
Wherein, the material of backing material can be foam class implant, and the material of the second sealant layer includes fluid sealant.
In the present embodiment, according to practical situation, described concrete protection method may comprise screed-coat, envelope when implementing
Close several in enamelled coating, bottom surface enamelled coating, paint layer from surface, strengthening course, the first sealant layer, the second sealant layer and backing material
Or all.
The concrete protection method that the present embodiment provides, by clearing up concrete surface to be protected；Described to be protected
Closing enamelled coating is formed on concrete surface；Described closing enamelled coating forms bottom surface enamelled coating, wherein, described bottom surface enamelled coating dry
Film thickness is more than or equal to 100um；Paint layer from surface, wherein, the dried film thickness of described paint layer from surface are formed on the enamelled coating of described bottom surface
Degree is more than or equal to 100um.So, the present embodiment rapidly can form protective layer on concrete, and concrete is protected
Shield, is effectively prevented concrete efflorescence.
Also, it should be noted term " inclusion " or its any other variant are intended to comprising of nonexcludability, from
And make to include a series of commodity of key elements or system not only includes those key elements, but also inclusion be not expressly set out its
His key element, or also include for this commodity or the intrinsic key element of system.In the absence of more restrictions, by language
The key element that sentence "including a ..." limits is it is not excluded that also exist other in the commodity including described key element or system
Identical element.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of concrete protection coating is it is characterised in that described concrete protection coating includes：Closing enamelled coating, bottom surface enamelled coating
And paint layer from surface；
Described closing enamelled coating is used for being arranged on concrete layer to be protected, and described bottom surface enamelled coating is arranged on described seal coat, institute
State paint layer from surface to be arranged on the enamelled coating of described bottom surface；
The build of described bottom surface enamelled coating is more than or equal to 100um, and the build of described paint layer from surface is more than or equal to
10um.
2. concrete protection coating according to claim 1 is it is characterised in that work as the intensity of described concrete layer to be protected
More than or equal to C20, described concrete protection coating also includes screed-coat；
Described screed-coat is arranged between described concrete layer to be protected and described closing enamelled coating.
3. concrete protection coating according to claim 1 is it is characterised in that work as the intensity of described concrete layer to be protected
More than or equal to C10 and less than C20 when, described concrete protection coating also includes strengthening course；
Described strengthening course is arranged between described concrete layer to be protected and described closing enamelled coating.
4. concrete protection coating according to claim 1 is it is characterised in that described concrete protection coating also includes
One sealant layer；
Described first sealant layer is arranged on described concrete layer to be protected and treats the anti-junction protecting body side surface, described seal coat
Layer is additionally arranged on described first sealant layer.
5. concrete protection coating according to claim 1 is it is characterised in that described concrete protection coating also includes
Two sealant layers and backing material；
Described backing material and the second sealant layer are filled in described concrete layer to be protected and treat between anti-guarantor's body side surface
In expansion joint, and described second sealant layer is arranged on described backing material, and described closing enamelled coating is arranged on described second
On sealant layer.
6. a kind of concrete protection method is it is characterised in that methods described includes：
Clear up concrete surface to be protected；
Closing enamelled coating is formed on described concrete surface to be protected；
Described closing enamelled coating forms bottom surface enamelled coating, wherein, the build of described bottom surface enamelled coating is more than or equal to 100um；
Paint layer from surface is formed on the enamelled coating of described bottom surface, wherein, the build of described paint layer from surface is more than or equal to 100um.
7. concrete protection method according to claim 6 is it is characterised in that work as the intensity of described concrete layer to be protected
More than or equal to C20, closing enamelled coating is formed on described concrete surface to be protected and is specially：
Described concrete surface to be protected forms screed-coat, described closing enamelled coating is formed on described screed-coat.
8. concrete protection method according to claim 6 is it is characterised in that work as the intensity of described concrete layer to be protected
More than or equal to C10 and less than C20 when, on described concrete surface to be protected formed closing enamelled coating be specially：
Described concrete surface to be protected forms strengthening course, described closing enamelled coating is formed on described strengthening course.
9. concrete protection method according to claim 6 is it is characterised in that methods described also includes：
Form the first sealant layer in described concrete layer to be protected with the junction treating anti-guarantor's body side surface, and close described first
Described closing enamelled coating is formed on adhesive layer.
10. concrete protection method according to claim 6 is it is characterised in that methods described also includes：
Described concrete layer to be protected and treat anti-protect body side surface between expansion joint in fill described backing material and second
Sealant layer, wherein, described second sealant layer is formed on described backing material, and shape on described second sealant layer
Become described closing enamelled coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807125.4A CN106436565A (en) | 2016-09-07 | 2016-09-07 | Concrete protection coating and concrete protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807125.4A CN106436565A (en) | 2016-09-07 | 2016-09-07 | Concrete protection coating and concrete protection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106436565A true CN106436565A (en) | 2017-02-22 |
Family
ID=58164844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610807125.4A Pending CN106436565A (en) | 2016-09-07 | 2016-09-07 | Concrete protection coating and concrete protection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106436565A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608094A (en) * | 2020-05-28 | 2020-09-01 | 中铁六局集团有限公司 | Construction method for polishing and repairing beam surface of high-speed railway cast-in-place box beam |
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|---|---|---|---|---|
| CN202808628U (en) * | 2012-08-16 | 2013-03-20 | 浙江环球制漆集团股份有限公司 | Protection coating for concrete base |
| CN203221697U (en) * | 2013-04-26 | 2013-10-02 | 徐州工程学院 | Silane composite protective coating of marine concrete in atmospheric region |
| JP2014177769A (en) * | 2013-03-13 | 2014-09-25 | Mitsubishi Plastics Inc | Floor slab waterproof member, floor slab waterproof structure and construction method of floor slab waterproof structure |
| CN204874314U (en) * | 2015-08-21 | 2015-12-16 | 徐州工程学院 | A reinforced concrete base member protective coating for villaumite erosion environment |
-
2016
- 2016-09-07 CN CN201610807125.4A patent/CN106436565A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202808628U (en) * | 2012-08-16 | 2013-03-20 | 浙江环球制漆集团股份有限公司 | Protection coating for concrete base |
| JP2014177769A (en) * | 2013-03-13 | 2014-09-25 | Mitsubishi Plastics Inc | Floor slab waterproof member, floor slab waterproof structure and construction method of floor slab waterproof structure |
| CN203221697U (en) * | 2013-04-26 | 2013-10-02 | 徐州工程学院 | Silane composite protective coating of marine concrete in atmospheric region |
| CN204874314U (en) * | 2015-08-21 | 2015-12-16 | 徐州工程学院 | A reinforced concrete base member protective coating for villaumite erosion environment |
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| Title |
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| 中国铁道科学研究院: "《百度文库》", 26 July 2015 * |
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| CN111608094A (en) * | 2020-05-28 | 2020-09-01 | 中铁六局集团有限公司 | Construction method for polishing and repairing beam surface of high-speed railway cast-in-place box beam |
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Application publication date: 20170222 |