JPH0243550B2 - - Google Patents
Info
- Publication number
- JPH0243550B2 JPH0243550B2 JP14059882A JP14059882A JPH0243550B2 JP H0243550 B2 JPH0243550 B2 JP H0243550B2 JP 14059882 A JP14059882 A JP 14059882A JP 14059882 A JP14059882 A JP 14059882A JP H0243550 B2 JPH0243550 B2 JP H0243550B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- primer
- urethane resin
- concrete mixing
- component
- 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
Links
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000008119 colloidal silica Substances 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- -1 hydrogen compound Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical class O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- WWEXBGFSEVKZNE-UHFFFAOYSA-N N=C=O.N=C=O.C1=CC=CC2=CC=CC=C21 Chemical class N=C=O.N=C=O.C1=CC=CC2=CC=CC=C21 WWEXBGFSEVKZNE-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229940104181 polyflex Drugs 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明はコンクリート混合装置の耐摩耗施工方
法に関する。更に詳しくは、コンクリート混合装
置の内、特に生コンクリートと接触し摩耗損傷を
受け易い部分の耐摩耗施工方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a concrete mixing device to resist wear. More specifically, the present invention relates to a method for constructing abrasion-resistant parts of concrete mixing equipment that are particularly susceptible to abrasion damage due to contact with fresh concrete.
コンクリート混合装置の器壁は生コンクリート
との接触により摩耗損傷が著しく、その改善が強
く望まれている。とりわけ、コンクリートミキサ
ー車に設置搭載されているコンクリート混合装置
は、コンクリートミキサー車の稼動率が高く、１
回の生コンクリート積載搬送量が通常約10トンと
多いために生コンクリートとの接触部、例えば、
ホツパー、ドラム、シユートの器壁、あるいはブ
レードの摩耗損傷が著しく、これらの耐久性につ
いては業界の大きな問題であつた。特に、ホツパ
ーおよびシユートの生コンクリートとの摩耗損傷
が顕著であり、この点の改良が強く望まれている
ところである。 The walls of concrete mixing equipment suffer significant abrasion and damage due to contact with fresh concrete, and improvement of this problem is strongly desired. In particular, the concrete mixing equipment installed on concrete mixer trucks has a high operating rate, and
Because the amount of fresh concrete loaded and transported per cycle is usually around 10 tons, there are many areas that come in contact with fresh concrete, such as
The durability of the hoppers, drums, chute walls, and blades has been severely damaged by wear and tear, and their durability has been a major problem in the industry. In particular, the wear and tear of the hopper and chute with fresh concrete is significant, and improvements in this respect are strongly desired.
また、コンクリート混合装置の器壁などに付着
した生コンクリートは、これが固着する前に十分
に洗浄、除去せねばならず作業能率の低下に加え
て発錆等の問題もあつた。 In addition, fresh concrete adhering to the walls of the concrete mixing device must be thoroughly cleaned and removed before it solidifies, resulting in problems such as rusting in addition to a decrease in work efficiency.
これらの問題を回避するために、例えばコンク
リート混合装置の器壁面にゴム製シートをボルト
などで取り付ける方法が行われている。しかしこ
の方法によれば耐摩耗性は改良されるものの、ボ
ルト頭部に生コンクリートが付着し易く、これの
洗浄、除去およびそれによる発錆等の問題は未解
決であり、加えて付着した生コンクリートの洗浄
除去の際ゴム製シートが損傷され易い問題もあつ
た。 In order to avoid these problems, for example, a method of attaching a rubber sheet to the wall surface of a concrete mixing device using bolts or the like has been used. However, although this method improves wear resistance, fresh concrete tends to adhere to the bolt head, and problems such as cleaning and removal of this and the resulting rusting have not been solved. Another problem was that the rubber sheet was easily damaged when cleaning and removing concrete.
本発明者らは、これらの問題を解決する方法に
ついて鋭意検討の結果、コンクリート混合装置の
生コンクリートとの接触により摩耗損傷し易い部
分に、揺変性を有する二液型ウレタン樹脂系塗膜
材料を厚塗りすることによつて上述した種々の問
題が解決されると共に塗装作業性も著しく改善さ
れることを見出し本発明を完成するに至つた。 As a result of extensive research into ways to solve these problems, the present inventors applied a two-component urethane resin coating material with thixotropy to the parts of concrete mixing equipment that are susceptible to wear and tear due to contact with fresh concrete. The inventors discovered that thick coating solves the various problems mentioned above and significantly improves coating workability, leading to the completion of the present invention.
すなわち、本発明はコンクリート混合装置の器
壁面にブライマーを塗布し、次いで揺変性を有す
る二液型ウレタン樹脂系塗布材料を塗布すること
を特徴とするコンクリート混合装置の耐摩耗施工
方法を提供するものである。 That is, the present invention provides a wear-resistant construction method for concrete mixing equipment, which is characterized in that a brimer is applied to the wall surface of the concrete mixing equipment, and then a two-component urethane resin coating material having thixotropy is applied. It is.
本発明方法は、特にコンクリートミキサー車に
設置搭載された、通常はホツパー、ドラム、ブレ
ードおよびシユートからなるコンクリート混合装
置に有利に適用され、生コンクリートとの接触に
よる摩耗損傷が著しく改善され、また生コンクリ
ートの付着が著しく改善され、仮に付着した生コ
ンクリートが固着してもその剥離が容易であるた
め洗浄除去による作業性の低下が改善され発錆等
の間題も回避される。 The method of the present invention is particularly advantageously applied to concrete mixing equipment installed and mounted on a concrete mixer truck, which usually consists of a hopper, drum, blade, and chute. The adhesion of concrete is significantly improved, and even if the fresh concrete adheres, it can be easily peeled off, so the decrease in workability due to washing and removal is improved and problems such as rusting are avoided.
以下に本発明の施工方法について詳細に説明す
る。 The construction method of the present invention will be explained in detail below.
本発明で用いられるプライマーは特に限定され
るものでなく、公知の一液型または二液型プライ
マーのいずれでもよいが、好ましくはコンクリー
ト混合装置の器壁面との接着性がよく、かつ二液
型ウレタン樹脂系塗布材料との層間密着性に優れ
たものがよい。例えば二液型エポキシ樹脂系プラ
イマー、一液型の湿気硬化型ウレタン樹脂系プラ
イマー、変性シリコーン系プライマー、フエノキ
シ樹脂系プライマーなどが挙げられる。これらの
プライマーの塗布量は特に制限されないが通常約
30乃至500ｇ／m3である。 The primer used in the present invention is not particularly limited, and may be any known one-component or two-component primer, but is preferably a two-component primer that has good adhesion to the wall surface of the concrete mixing device. It is preferable to use one that has excellent interlayer adhesion with the urethane resin coating material. Examples include a two-component epoxy resin primer, a one-component moisture-curing urethane resin primer, a modified silicone primer, and a phenoxy resin primer. The amount of these primers applied is not particularly limited, but is usually approx.
It is 30 to 500 g/m 3 .
本発明で用いられる揺変性を有する二液型ウレ
タン樹脂系塗布材料は、垂直面に厚さ１mm以上付
着させ得るものが好ましく、又、硬化時の硬度
（シヨア−Ａ）が50以上のものが好ましい。 The two-component urethane resin coating material with thixotropy used in the present invention is preferably one that can be attached to a vertical surface to a thickness of 1 mm or more, and has a hardness (Shor-A) of 50 or more when cured. preferable.
垂直面への付着可能厚が１mmより少なければ、
三次元的な曲面を有する対象面への作業性が悪
く、数回に塗り重ねて目的とする塗膜厚にするこ
とが必要となり好ましくない。 If the thickness that can be attached to the vertical surface is less than 1 mm,
It is not preferable because it has poor workability on a target surface having a three-dimensional curve, and it is necessary to apply the coating several times to obtain the desired coating thickness.
又、硬化時の硬度が50より低いと、塗膜が損傷
を受け易くなるので好ましくない。 Moreover, if the hardness at the time of curing is lower than 50, the coating film will be easily damaged, which is not preferable.
かかる二液型ウレタン樹脂系塗料としては、例
えば、主剤成分としてトリレンジイソシアネート
類、フエニレンジイソシアネート類、ナフタレン
ジイソシアネート類、あるいはこれらと多価アル
コール類、ポリエーテルポリオール類、ポリエス
テルポリオール類などとの反応によつて得られる
ポリイソシアネート化合物を含有し、一方、硬化
剤成分として、ポリアミン化合物、ポリオール化
合物等の活性水素化合物を含有するものであり、
主剤およびもしくは硬化剤に、或は主剤と硬化剤
の未硬化の混合物に、コロイダルシリカ、有機ベ
ントナイト、水添ヒマシ油、微粒状炭カル、塩ビ
パウダー等公知の揺変性付与剤を添加することに
よつて得られる。これらの揺変性付与剤の添加量
は上記の垂直面への付着可能厚および硬度を考慮
して適宜決定されるが、通常二液型ウレタン樹脂
材料中0.5乃至20重量％、好ましくは１〜10重量
％である。 Such two-component urethane resin paints include, for example, tolylene diisocyanates, phenylene diisocyanates, naphthalene diisocyanates as the main component, or reactions of these with polyhydric alcohols, polyether polyols, polyester polyols, etc. Contains a polyisocyanate compound obtained by, and on the other hand, contains an active hydrogen compound such as a polyamine compound or a polyol compound as a curing agent component,
Adding a known thixotropic agent such as colloidal silica, organic bentonite, hydrogenated castor oil, fine charcoal, or vinyl chloride powder to the base resin and/or hardener, or to the uncured mixture of the base resin and hardener. You can get it by twisting it. The amount of these thixotropy-imparting agents added is appropriately determined in consideration of the thickness and hardness that can be attached to the vertical surface, but it is usually 0.5 to 20% by weight, preferably 1 to 10% by weight in the two-component urethane resin material. Weight%.
本発明を実施するには、先ず施工すべき部分
に、コテ塗り、ハケ塗り、ローラーハケ塗りなど
公知の塗布方法によつてプライマーを塗布する。
次いでプライマー塗布面に、揺変性を有する二液
型ウレタン樹脂系塗布材料をコテもしくはゴムヘ
ラ等により１mm乃至15mm厚に塗布する。揺変性を
有する二液型ウレタン樹脂系塗布材料の塗布は、
数回にわたつて塗り重ねて目的の厚さに塗布して
もよい。 To carry out the present invention, first, a primer is applied to the area to be constructed using a known application method such as troweling, brushing, or roller brushing.
Next, a two-component urethane resin coating material having thixotropy is applied to the primer-coated surface using a trowel or a rubber spatula to a thickness of 1 mm to 15 mm. Application of two-component urethane resin coating material with thixotropy is as follows:
It may be applied several times to achieve the desired thickness.
本発明の方法によれば、コンクリート混合装置
の生コンクリートと接触して摩耗損傷し易い部分
の耐摩耗性を向上し、生コンクリートの付着を防
止し、またたとえ付着したとしてもその除去が容
易であり、更には長期使用による損傷部分の補修
も単にその部分に該二液型ウレタン樹脂系塗布材
料を塗り重ねるだけで十分である。 According to the method of the present invention, the abrasion resistance of the parts of the concrete mixing device that are easily damaged by abrasion due to contact with fresh concrete is improved, the adhesion of fresh concrete is prevented, and even if it does adhere, it can be easily removed. Furthermore, it is sufficient to repair damaged areas due to long-term use by simply applying the two-component urethane resin coating material over the area.
以下、本発明を実施例により更に詳細に説明す
る。 Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例
長さ7.7mm幅2.5ｍ高さ3.5ｍのコンクリートミキ
サー車のシユート部内面にプライマー310（住友化
学工業社品、エポキシ樹脂系プライマー）を
200gr／m2の割合でハケ塗りし、２時間後に、主
剤として、ポリフレツクスFL−87（第一工業製薬
社品、ポリイソシアネート化合物NCO含有率6.5
％）96部とコロイダルシリカ４部の混合物を使用
し、硬化剤として、３，３−ジクロロ−４，4′−
ジアミノジフエニルメタン19.5部、炭カル50部、
コロイダルシリカ６部、アスベスト2.5部、フタ
ル酸ジオクチル15部、顔料配合トーナー（富士色
素社品）７部よる成る組成物を、主剤／硬化剤の
混合比１／１（重量比）で混合し、金コテにより
厚さ５mmに均一に塗布した。Example: Primer 310 (Sumitomo Chemical Co., Ltd. product, epoxy resin primer) was applied to the inner surface of the chute of a concrete mixer truck with a length of 7.7 mm, a width of 2.5 meters, and a height of 3.5 meters.
It was applied with a brush at a rate of 200gr/ m2 , and after 2 hours, Polyflex FL-87 (Daiichi Kogyo Seiyaku Co., Ltd. product, polyisocyanate compound NCO content 6.5) was applied as the main agent.
%) and 4 parts of colloidal silica, and 3,3-dichloro-4,4'-
19.5 parts of diaminodiphenylmethane, 50 parts of charcoal,
A composition consisting of 6 parts of colloidal silica, 2.5 parts of asbestos, 15 parts of dioctyl phthalate, and 7 parts of a pigment-containing toner (manufactured by Fuji Shiroki Co., Ltd.) is mixed at a base agent/curing agent mixing ratio of 1/1 (weight ratio), It was applied uniformly to a thickness of 5 mm using a metal trowel.
かくしてシユート部に耐摩耗施工を行つたコン
クリートミキサー車に１回当り約10tの生コンを
積載させて稼動させた所、200回（約３ケ月）の
稼動を経ても、シユート部には、生コンの付着お
よび摩耗による損傷は全く認められなかつた。 In this way, when a concrete mixer truck with abrasion-resistant construction applied to the chute section was loaded with about 10 tons of ready-mixed concrete at a time and operated, even after 200 operations (about 3 months), there was still no amount of ready-mixed concrete in the chute section. No damage due to adhesion or abrasion was observed.
Claims (1)
を塗布し、次いで揺変性を有する二液型ウレタン
樹脂系塗布材料を塗布することを特徴とするコン
クリート混合装置の耐摩耗施工方法。1. A wear-resistant construction method for concrete mixing equipment, which comprises applying a primer to the wall surface of the concrete mixing equipment, and then applying a two-component urethane resin coating material having thixotropy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14059882A JPS5929064A (en) | 1982-08-12 | 1982-08-12 | Method for applying abrasion resistance to concrete mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14059882A JPS5929064A (en) | 1982-08-12 | 1982-08-12 | Method for applying abrasion resistance to concrete mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5929064A JPS5929064A (en) | 1984-02-16 |
| JPH0243550B2 true JPH0243550B2 (en) | 1990-09-28 |
Family
ID=15272417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14059882A Granted JPS5929064A (en) | 1982-08-12 | 1982-08-12 | Method for applying abrasion resistance to concrete mixer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5929064A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6391602U (en) * | 1986-12-02 | 1988-06-14 | ||
| ITVR20110155A1 (en) * | 2011-07-21 | 2013-01-22 | Led Srl | COMPOSITION FOR THE COATING OF SURFACES INTENDED TO GO TO CONTACT WITH CEMENTITIOUS PASTE IN THE FLUID STATE |
| ITVR20130093A1 (en) * | 2013-04-19 | 2014-10-20 | Led Srl | PROCEDURE FOR APPLICATION OF A COMPOSITION FOR THE COATING OF SURFACES INTENDED TO GO TO CONTACT WITH CEMENTITIOUS PASTE IN THE FLUID STATE |
-
1982
- 1982-08-12 JP JP14059882A patent/JPS5929064A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5929064A (en) | 1984-02-16 |
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