JPH01119576A - Surface treatment of concrete - Google Patents
Surface treatment of concreteInfo
- Publication number
- JPH01119576A JPH01119576A JP27525787A JP27525787A JPH01119576A JP H01119576 A JPH01119576 A JP H01119576A JP 27525787 A JP27525787 A JP 27525787A JP 27525787 A JP27525787 A JP 27525787A JP H01119576 A JPH01119576 A JP H01119576A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- plasma
- ceramics
- metal
- spraying
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 238000004381 surface treatment Methods 0.000 title claims description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 238000007750 plasma spraying Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 abstract description 6
- 239000003082 abrasive agent Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 29
- 238000007751 thermal spraying Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- -1 wear resistance Chemical class 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、コンクリートの表面にセラミックス又は金属
の皮膜を形成し、耐摩耗性、耐酸性等の性質を付与する
コンクリートの表面処理方法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for surface treatment of concrete, which forms a ceramic or metal film on the surface of concrete to impart properties such as abrasion resistance and acid resistance. It is.
従来、コンクリートの表面に、耐摩耗性、耐酸性を付与
する方法としては、樹脂系材料をコーティングする方法
、或いは樹脂系材料の成形物を貼付する方法等がある。Conventionally, methods for imparting abrasion resistance and acid resistance to the surface of concrete include a method of coating a resin material, a method of pasting a molded product of a resin material, and the like.
しかしながら、従来の樹脂系材料をコーティングする方
法は、コンクリートと樹脂系材料との付着性、及び材料
の塗膜厚さの不均一等の問題がある。一方、樹脂系材料
の成形物をコンクリートに貼付する方法は、継目処理が
難しいと＼もに、剥離し易いこと、また成形物は所定の
厚さが必要であり、不経済である等の欠点がある。更に
、いずれも損傷を受けやすく、長期使用が困難である等
の問題点もある。However, conventional methods of coating resin-based materials have problems such as poor adhesion between concrete and resin-based materials and non-uniform coating film thickness of the material. On the other hand, the method of attaching molded resin materials to concrete has drawbacks such as difficult joint treatment, easy peeling, and uneconomical moldings that require a certain thickness. There is. Furthermore, they all have problems such as being easily damaged and difficult to use for a long period of time.
本発明は、上記のような問題点を解決するためになされ
たもので、コンクリートの表面にセラミックス又は金属
の粉末をプラズマ溶射法により溶射し、コンクリートの
表面にセラミックス又は金属皮膜を形成することを特徴
とするコンクリートの表面処理方法であり、これにより
、耐摩耗性。The present invention was made to solve the above-mentioned problems, and involves spraying ceramic or metal powder onto the surface of concrete using a plasma spraying method to form a ceramic or metal coating on the surface of concrete. This is a concrete surface treatment method that is characterized by its wear resistance.
耐酸性等の特性を付与したコンクＩＪ −トを提供する
ことを目的とするものである。The object of the present invention is to provide a concrete IJ-type material having properties such as acid resistance.
上記目的を達成するための本発明を、第１図。 FIG. 1 shows the present invention for achieving the above object.
第２図及び第１表乃至第３表に基いて以下詳細に説明す
る。なお、第１図は本発明に係る表面処理方法によって
形成したコンクリートの拡大断面部分図で、第２図は本
発明の加工工程を示すブロック図、第３図はプラズマ溶
射の説明図、第１表は溶射材料により付与される特性表
で、第２表はセラミックスの溶射材料表、第３表は金属
の溶射材料表である。A detailed explanation will be given below based on FIG. 2 and Tables 1 to 3. In addition, FIG. 1 is an enlarged partial cross-sectional view of concrete formed by the surface treatment method according to the present invention, FIG. 2 is a block diagram showing the processing steps of the present invention, and FIG. 3 is an explanatory diagram of plasma spraying. The tables are characteristic tables given by the thermal spraying materials, the second table is the thermal spraying material table for ceramics, and the third table is the thermal spraying material table for metals.
第１図において、１は母材であるコンクリートで、２は
その表面に形成したセラミックス或いは金属の皮膜層で
ある。In FIG. 1, 1 is concrete as a base material, and 2 is a ceramic or metal coating layer formed on its surface.
第２図はコンクリート１の表面に皮膜２を形成する処理
工程を示す図で、先ず研削工程３により母材１の表面１
ａに予備研磨を施し、次のプラスティング工程４におい
て、母材１の表面１ａに研削材を約５ Ｋｇ／ｃｍ２〜
７ Ｋｇ／ｃｍ”の圧縮空気のもとに吹き付けて表面１
ａを粗面化する。FIG. 2 is a diagram showing a treatment process for forming a film 2 on the surface of concrete 1. First, a grinding process 3 is performed to form a coating 2 on the surface of base material 1.
A is pre-polished, and in the next plastening step 4, abrasive material is applied to the surface 1a of the base material 1 at a rate of about 5 kg/cm2~
7 Kg/cm" of compressed air to the surface 1.
Roughen a.
次に予熱工程５において、５０℃〜９０℃に加熱して溶
射直前の水分を除去した後、溶射工程６において、プラ
ズマの熱エネルギーによりセラミックス或いは金属等の
溶射材料の粉末を溶融あるいはそれに近い状態まで加熱
し、前記母材１の表面１ａに高速で吹き付けてセラミッ
クス又は金属の皮膜２を形成する。Next, in a preheating step 5, after heating to 50°C to 90°C to remove moisture just before thermal spraying, in a thermal spraying step 6, the thermal energy of the plasma melts the powder of the thermal spraying material such as ceramics or metal, or melts it in a state close to it. A ceramic or metal coating 2 is formed by heating the base material 1 to a temperature of 100.degree. C. and spraying it at high speed onto the surface 1a of the base material 1.
溶射材料としてジルコニア・マグネジ？ （ＺｒＯ□・
ＭｇＯ）を使用した場合、コンクリート表面は約５０℃
〜９０℃に温度管理されている。Zirconia magnetic screw as thermal spray material? (ZrO□・
When using MgO), the concrete surface temperature is approximately 50℃
The temperature is controlled at ~90°C.
第３図はプラズマ溶射の一例を示す説明図で、プラズマ
を発生させる作動ガス供給装置７から、水素、窒素、ヘ
リウム、アルゴン等の気体を単独で又は所定の割合で混
合したものを使用し、プラズマ発生装置８に連続的に送
り込み、該装置８内に設けられた正極と負極の画電極に
電源装置９から電源を供給してアークを発生させる。FIG. 3 is an explanatory diagram showing an example of plasma spraying, in which gases such as hydrogen, nitrogen, helium, argon, etc. are used alone or in a mixture at a predetermined ratio from a working gas supply device 7 that generates plasma. The plasma is continuously fed into the plasma generating device 8, and power is supplied from the power supply device 9 to the positive and negative picture electrodes provided in the device 8 to generate an arc.
しかして、ガスは解離および電離（正と負のイオンに分
かれる）した状態、すなわちプラズマの状態となり、急
激に膨張してプラズマ発生装置８の小孔より高速、高温
のプラズマジェットとして噴射する。As a result, the gas becomes dissociated and ionized (separated into positive and negative ions), that is, becomes a plasma, expands rapidly, and is ejected from the small hole of the plasma generator 8 as a high-speed, high-temperature plasma jet.
このプラズマジェットに、セラミックスや金属等の溶射
材料１０を混入し、これをコンクリート表面に吹き付け
ることにより溶射できる。なお、プラズマ発生装置８は
水循環装置１１からの冷却水により冷却されている。Thermal spraying can be performed by mixing a thermal spraying material 10 such as ceramics or metal into this plasma jet and spraying this onto the concrete surface. Note that the plasma generator 8 is cooled by cooling water from a water circulation device 11.
第１表は、各種溶射材料によって付与される性質を示す
表である。Table 1 is a table showing properties imparted by various thermal spray materials.
この表から分かるように、溶射材料として優れた特性を
有するものとしては、アルミナ系（Ａ１２゜３系）、チ
タニア系（Ｔｉ０２系）、ジルコニア系（ＺｒＯ，系）
、窒化物、炭化物、硼化物等より成るセラミックスの粉
末、超硬合金粉末、及びこれらの複合化によって成る粉
末等が適する。これらの溶射材料を単独あるいは組合わ
せて使用することにより、コンクリート表面に硬度、耐
摩耗性、耐酸性、耐熱性、電気絶縁性、仕上性等の緒特
性を付与することができる。As can be seen from this table, materials with excellent properties as thermal spray materials include alumina-based (A12゜3-based), titania-based (Ti02-based), and zirconia-based (ZrO, based) materials.
Suitable materials include ceramic powders made of nitrides, carbides, borides, etc., cemented carbide powders, and powders made from composites thereof. By using these thermal spray materials alone or in combination, it is possible to impart properties such as hardness, abrasion resistance, acid resistance, heat resistance, electrical insulation properties, and finishing properties to the concrete surface.
各溶射材料を組合わせることにより特性を向上できる例
として、ＡＩ、Ｏ，に他の材料を添加する例について述
べると、ＳｉＯ□を添加することにより原料コストを下
げることができ、ＺｒＯ，を添加することにより熱特性
を向上できる。また、Ｔｉｅ、や超硬合金を添加するこ
とにより仕上性を向上させることができ、非酸化物やレ
アメタルを添加することにより高機能化できる。As an example of how properties can be improved by combining various thermal spraying materials, let's talk about adding other materials to AI and O. Adding SiO□ can reduce raw material costs, and adding ZrO By doing so, the thermal properties can be improved. Furthermore, the finish can be improved by adding Tie or cemented carbide, and the functionality can be improved by adding non-oxides or rare metals.
第２表には、溶射材料として適するセラミックス例の組
成と特性を示す。また、第３表には溶射材料として適す
る金属例とその特性を示づ。Table 2 shows the composition and properties of ceramic examples suitable as thermal spray materials. Furthermore, Table 3 shows examples of metals suitable as thermal spray materials and their properties.
溶射材料は、コンクリートの使用目的に応じてそれに合
う特性のものが選定され使用される。Thermal spray materials are selected and used depending on the intended use of the concrete.
本発明は、上記に述べたように、コンクリートの表面に
セラミックス又は金属の粉末をプラズマ溶射法により溶
射し、セラミックス又は金属の皮膜を形成することを特
徴とするコンクリートの表面処理方法であり、プラズマ
の高速、高温のエネルギーを利用するため、高効率でセ
ラミックス又は金属の層をコンクリートの表面に形成す
ることができる。また、セラミックスや金属の皮膜がコ
ンクリート表面に形成されるため、コンクリートの特性
に加えて、これらセラミックスや金属の特性である耐摩
耗性、高硬度、耐熱性及び耐酸性等の緒特性をコンクリ
ート表面に効果的に付与することができ、損傷を受けに
くく、長期間安定して使用でき、コンクリートの応用範
囲が格段に拡大できる等の諸効果がある。As described above, the present invention is a concrete surface treatment method characterized by spraying ceramic or metal powder onto the surface of concrete by plasma spraying to form a ceramic or metal film. By utilizing the high-velocity, high-temperature energy of concrete, ceramic or metal layers can be formed on the surface of concrete with high efficiency. In addition, since a ceramic or metal film is formed on the concrete surface, in addition to the characteristics of concrete, the concrete surface also has the characteristics of ceramics and metals such as wear resistance, high hardness, heat resistance, and acid resistance. It has various effects such as being able to be applied effectively to concrete, being less susceptible to damage, being able to be used stably for a long period of time, and greatly expanding the range of applications for concrete.
第１図は本発明に係る表面処理方決によって形成したコ
ンクリートの拡大断面部分図、第２図は本発明の加工工
程を示すブロック図、第３図はプラズマ溶射の説明図で
ある。
１・・・コンクリート製品、 １ａ・・・表面、２・
・・皮膜。FIG. 1 is an enlarged partial cross-sectional view of concrete formed by the surface treatment method according to the present invention, FIG. 2 is a block diagram showing the processing steps of the present invention, and FIG. 3 is an explanatory diagram of plasma spraying. 1... Concrete product, 1a... Surface, 2.
...Film.
Claims (1)
ラズマ溶射法により溶射し、セラミックス又は金属の皮
膜を形成することを特徴とするコンクリートの表面処理
方法。A method for surface treatment of concrete, which comprises spraying ceramic or metal powder onto the surface of concrete using a plasma spraying method to form a ceramic or metal film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27525787A JPH01119576A (en) | 1987-10-30 | 1987-10-30 | Surface treatment of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27525787A JPH01119576A (en) | 1987-10-30 | 1987-10-30 | Surface treatment of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119576A true JPH01119576A (en) | 1989-05-11 |
Family
ID=17552892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27525787A Pending JPH01119576A (en) | 1987-10-30 | 1987-10-30 | Surface treatment of concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0483862A (en) * | 1990-07-24 | 1992-03-17 | Ohbayashi Corp | Surface treatment |
| CN111575630A (en) * | 2020-04-21 | 2020-08-25 | 长江水利委员会长江科学院 | Concrete surface protection treatment method based on plasma thermal spraying technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266518A (en) * | 1975-11-28 | 1977-06-02 | Sumitomo Chemical Co | Method of coating concrete or asphalt with powder |
-
1987
- 1987-10-30 JP JP27525787A patent/JPH01119576A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266518A (en) * | 1975-11-28 | 1977-06-02 | Sumitomo Chemical Co | Method of coating concrete or asphalt with powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0483862A (en) * | 1990-07-24 | 1992-03-17 | Ohbayashi Corp | Surface treatment |
| CN111575630A (en) * | 2020-04-21 | 2020-08-25 | 长江水利委员会长江科学院 | Concrete surface protection treatment method based on plasma thermal spraying technology |
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