JPS59121177A - Concrete washing finish - Google Patents
Concrete washing finishInfo
- Publication number
- JPS59121177A JPS59121177A JP22754582A JP22754582A JPS59121177A JP S59121177 A JPS59121177 A JP S59121177A JP 22754582 A JP22754582 A JP 22754582A JP 22754582 A JP22754582 A JP 22754582A JP S59121177 A JPS59121177 A JP S59121177A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- retarder
- washing
- water
- concrete washing
- 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.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- 208000006558 Dental Calculus Diseases 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical class [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
コンクリートの洗１ｎｌｉし仕上げは従来より採用され
ている仕上げ方法で、コンクリート表面の化粧やコンク
リート打継部の目荒しなどに応用されている。その原理
は、コンクリート表面のセメントペーストを何らかの手
段で洗い流して骨材を露出させるものである。DETAILED DESCRIPTION OF THE INVENTION Concrete washing and finishing is a finishing method that has been used conventionally, and is applied to decorative concrete surfaces and roughening of concrete joints. The principle is to wash away the cement paste on the concrete surface by some means to expose the aggregate.
具体的には、幾分硬化した未硬化状態のコンクリート表
面を強制的に水洗する物理的な方法と、塩酸などでコン
クリート表面のセメントペーストを溶かしたり、リター
ダ−と称するセメントの凝結遅延剤を使用してコンクリ
とト表面のセメントの硬化を遅延させ、コンクリート硬
化後水洗するなどの化学的な方法がある。Specifically, there is a physical method of forcibly washing the uncured concrete surface with water, dissolving the cement paste on the concrete surface with hydrochloric acid, and using a cement retardant called retarder. There are chemical methods such as delaying the hardening of cement on the concrete surface and washing the concrete with water after hardening.
そしてセメントリターダ−を使用する洗い出し方法には
次の２方法がある。There are two cleaning methods using a cement retarder:
１） 型枠内面に刷毛などで、リターダ−を塗り付け、
乾燥後コンクリートを打ち込む。コンクリートが硬化し
てから脱型し、ブラシを使用しながら水洗し骨材を露出
させる（型枠面塗布法）。1) Apply retarder to the inside of the formwork with a brush,
After drying, pour concrete. After the concrete has hardened, it is removed from the mold and washed with water using a brush to expose the aggregate (form surface application method).
１１）マだ固まらないコンクリートの打ち込み面にリタ
ーダ−を散布して、コンクリートが硬化後にブラシを使
用しながら水洗し骨材を露出させる（コンクリート面塗
布法）。11) Spread retarder on the pouring surface of concrete that does not harden, and after the concrete hardens, wash it with water using a brush to expose the aggregate (concrete surface application method).
本発明は上記ｉｌ）による洗い出し仕上げ方法め改良に
関するものである。The present invention relates to an improvement in the wash-out finishing method according to il) above.
低粘度のりターダーをコンクリート面に散布しているが
、リターダ−の塗布量の変動により。Low viscosity glue tartar is being spread on the concrete surface, but due to fluctuations in the amount of retarder applied.
洗い出し深さが変動したシ、コンクリート表面に空隙が
多い部分ではりターダーが深く浸透して洗い出し深さが
過大となったり化粧骨材が剥、離したりするという問題
があった。There was a problem that the washout depth varied, and in areas where there were many voids on the concrete surface, the tartar penetrated deeply, resulting in excessive washout depth and decorative aggregates peeling off.
本発明者等は種々実験研究の結果次の知見を得た。即ち
、第１図は化粧骨材１が剥離する様子を図解したもので
、（、）はりターダー２を散布した初期状態、（ｂ）は
洗い出し直前の状態を示すものである。The present inventors obtained the following findings as a result of various experimental studies. That is, FIG. 1 is a diagram illustrating how the decorative aggregate 1 is peeled off, and (,) shows the initial state after the beam tarder 2 has been spread, and (b) shows the state immediately before washing out.
この場合、コンクリートの配合その他の条件により、リ
ターダ−２が毛細管現象により化粧骨材１の下に浸透す
ることがある。In this case, depending on the mix of concrete and other conditions, the retarder 2 may penetrate under the decorative aggregate 1 due to capillary action.
そうすると、リターダ−の硬化遅延作用によって、水洗
した場合（Ｃ）図のように未硬化コンクリートと共に洗
−落されて見苦しい状態となってしまうことがわかった
。It was found that due to the curing retardation effect of the retarder, when washed with water, it was washed away along with the uncured concrete as shown in Figure (C), resulting in an unsightly condition.
本発明はこの知見に基づき更に実験研究の結果、セメン
トリターダ−の粘度を２υＯ〜２０００ｃｐとすること
によりこの問題を解決したものである。Based on this knowledge and as a result of further experimental research, the present invention solves this problem by setting the viscosity of the cement retarder to 2υO to 2000 cp.
２００ｃｐ以上の高粘度のりターダーを使用することに
より、その塗布量が１００〜５０（１部ｍ’の範囲で変
動しても洗い出しの深さはほぼ一定となり、ま７たコン
クリート表面に多−の空隙があっても洗い出し深さはほ
ぼ一定となる。By using a high viscosity glue tarder of 200 cp or more, the depth of washing out is almost constant even if the applied amount varies within the range of 100 to 50 m (1 part m'). Even if there are voids, the washing depth remains almost constant.
そのため即時脱型による成形品を量産する場合の洗い出
し仕上げ方法として好適な方法である。Therefore, this method is suitable as a cleaning finishing method when mass producing molded products by immediate demolding.
更にコンクリート上に型紙等を置いてリターダ−を塗布
し、部分−的な洗い出しも可能となり、不良品発生の絶
滅と、；ンクリート仕上の多様化を増す上において有用
な発明である。Furthermore, it is possible to apply retarder by placing a paper pattern on the concrete and partially washing it out, which is a useful invention in eliminating the occurrence of defective products and increasing the variety of concrete finishes.
なおリターダ−の粘度は２０００ｃｐ以上となると、吹
付は作業が困難（！−なるので工学的には不向である。Note that if the viscosity of the retarder exceeds 2000 cp, spraying becomes difficult (!-), so it is unsuitable from an engineering perspective.
リターダ−としてはグルコン酸、酒石酸、クエン酸、リ
ンゴ酸などのヒドロオキシカルデン酸のソーダ塩、糖類
などが使用される。As the retarder, soda salts of hydroxycaldic acids such as gluconic acid, tartaric acid, citric acid, and malic acid, sugars, and the like are used.
実施例
第２図に示すようにグルモノ駿ソーダ５部、硫酸ソーダ
２部、メチルセルローズ２部、水９１部かう成る５００
ｃｐのリターダ−４′ｔ−まだ固・まらない即時脱型の
コンクリートブロック５面に吹き付け、コンクリートが
硬化後水洗を行って、化粧骨材６を露出させた。Example As shown in Figure 2, 500 glumono-shun soda, 2 parts of sodium sulfate, 2 parts of methyl cellulose, and 91 parts of water were prepared.
Retarder 4't of cp was sprayed onto 5 surfaces of immediately demolded concrete blocks that had not yet hardened, and after the concrete had hardened, it was washed with water to expose the decorative aggregate 6.
数多く実験した結果、仕上がシが良好であること、何よ
り優れたことは不良品が出ないこと、作業が機械化でき
ることなどの特長があり、化粧仕上のコンクリート製品
の量産に貢献するところ大である。As a result of numerous experiments, it has been found that the finish is good, the best thing is that there are no defective products, and the work can be mechanized, which will greatly contribute to the mass production of concrete products with a decorative finish. .
第１図は従来の問題点を示す説明図、第２図は本発明の
詳細な説明図である。
４・・・リターダ−１５・・・コンクリート、６・・・
化粧骨材。FIG. 1 is an explanatory diagram showing conventional problems, and FIG. 2 is a detailed explanatory diagram of the present invention. 4... Retarder-15... Concrete, 6...
Cosmetic aggregate.
Claims (1)
ｐの高粘度のセメントリターダ−を塗布し、コンクリー
トの硬化後に水洗いすることを特徴とするコンクリート
の洗い出し仕上げ方法。200-2000C on the concrete surface immediately after pouring
A concrete washing and finishing method characterized by applying a high viscosity cement retarder of P and washing with water after the concrete hardens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22754582A JPS59121177A (en) | 1982-12-28 | 1982-12-28 | Concrete washing finish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22754582A JPS59121177A (en) | 1982-12-28 | 1982-12-28 | Concrete washing finish |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59121177A true JPS59121177A (en) | 1984-07-13 |
| JPH0254312B2 JPH0254312B2 (en) | 1990-11-21 |
Family
ID=16862573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22754582A Granted JPS59121177A (en) | 1982-12-28 | 1982-12-28 | Concrete washing finish |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59121177A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2590890A1 (en) * | 1985-11-30 | 1987-06-05 | Braas & Co Gmbh | METHOD FOR MANUFACTURING CONCRETE TILES WITH A SURFACE HAVING NATURAL ROUGHNESS |
| WO2000030820A1 (en) * | 1998-11-24 | 2000-06-02 | Commodore International Limited | Concrete removing composition |
| JP2007294113A (en) * | 2006-04-20 | 2007-11-08 | Chugoku Electric Power Co Inc:The | Measuring terminal board structure |
| JP2009542458A (en) * | 2006-07-06 | 2009-12-03 | ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット | Method for retarding setting of mortar and concrete surfaces |
| JP2019218219A (en) * | 2018-06-15 | 2019-12-26 | 株式会社イー・エム・ディ | Concrete surface washing treatment agent |
| CN111533573A (en) * | 2020-04-18 | 2020-08-14 | 河南砥柱工程检测有限公司 | Powdery matting agent for concrete and preparation method thereof |
-
1982
- 1982-12-28 JP JP22754582A patent/JPS59121177A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2590890A1 (en) * | 1985-11-30 | 1987-06-05 | Braas & Co Gmbh | METHOD FOR MANUFACTURING CONCRETE TILES WITH A SURFACE HAVING NATURAL ROUGHNESS |
| WO2000030820A1 (en) * | 1998-11-24 | 2000-06-02 | Commodore International Limited | Concrete removing composition |
| US6592658B1 (en) | 1998-11-24 | 2003-07-15 | Commodore International Limited | Concrete removing composition |
| JP2007294113A (en) * | 2006-04-20 | 2007-11-08 | Chugoku Electric Power Co Inc:The | Measuring terminal board structure |
| JP2009542458A (en) * | 2006-07-06 | 2009-12-03 | ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット | Method for retarding setting of mortar and concrete surfaces |
| JP2019218219A (en) * | 2018-06-15 | 2019-12-26 | 株式会社イー・エム・ディ | Concrete surface washing treatment agent |
| CN111533573A (en) * | 2020-04-18 | 2020-08-14 | 河南砥柱工程检测有限公司 | Powdery matting agent for concrete and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0254312B2 (en) | 1990-11-21 |
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