JPS63151761A - Method of repairing light-weight aerated concrete - Google Patents
Method of repairing light-weight aerated concreteInfo
- Publication number
- JPS63151761A JPS63151761A JP29846986A JP29846986A JPS63151761A JP S63151761 A JPS63151761 A JP S63151761A JP 29846986 A JP29846986 A JP 29846986A JP 29846986 A JP29846986 A JP 29846986A JP S63151761 A JPS63151761 A JP S63151761A
- Authority
- JP
- Japan
- Prior art keywords
- aerated concrete
- repair material
- lightweight
- uneven
- repairing
- 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
- 239000004567 concrete Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims description 25
- 230000007547 defect Effects 0.000 claims description 14
- 239000011381 foam concrete Substances 0.000 claims description 14
- 230000002950 deficient Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (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】
［発明の目的］
（産業上の利用分野）
本発明は表面が凹凸状に形成′された軽は気泡コンクリ
ートの表面欠損を修復するための軽量気泡コンクリート
の補修方法に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for repairing lightweight cellular concrete for repairing surface defects in lightweight cellular concrete whose surface has been formed in an uneven manner. .
（従来の技術）
軽量、気泡コンクリートは、内部に無数の気泡を有して
軽量性及び断熱性等に優れるため、近年例えば建築物の
外装材として多用されている。ところが反面、この軽量
気泡コンクリート板は、輸送時や施工時に衝撃を受ける
とその多孔性のために角部や稜部等に欠損が発生するこ
とがあった。建築物の外装材として使用される従来の軽
量気泡コンクリート板は表面が平滑に形成されていたた
め、仮に表面欠損が生じても、欠ＩＭ部分に例えばモル
タル系の補修材を埋め込んでその表面をナイフ等で平滑
に削れば比較的容品に補修が可能である。(Prior Art) Light-weight aerated concrete has numerous air bubbles inside and is excellent in lightness and heat insulation properties, so it has recently been widely used as an exterior material for buildings, for example. However, on the other hand, when this lightweight aerated concrete board receives impact during transportation or construction, due to its porosity, damage may occur at corners, ridges, etc. Conventional lightweight aerated concrete plates used as exterior materials for buildings have smooth surfaces, so even if a surface defect occurs, the surface can be repaired by filling the defective IM part with a repair material such as mortar. It is possible to repair it relatively easily by scraping it smooth with something like this.
しかしながら、近年、軽量気泡コンクリート板の表面に
例えば多数の小鋼球を吹付けて表面を浸蝕させることに
より、表面に自然な凹凸模様を形成したものが供されて
いる。この種の軽量気泡コン゛クリート板に表面欠損が
生じたときに従来の補修方法を適用すれば、本来の表面
は凹凸状であるのに補修部分は平滑になってしまうため
、見栄えを著しく損うことになる。このため、この種の
軽量気泡コンクリート板にあっては、表面欠損の補修が
困難とされ、大きな欠損が生じ゛たものは廃棄処分にさ
れていたのが実情であった。However, in recent years, lightweight aerated concrete plates have been provided with natural uneven patterns formed on the surface by, for example, spraying a large number of small steel balls onto the surface to erode the surface. If conventional repair methods are applied to this type of lightweight cellular concrete board when surface defects occur, the repaired area will become smooth even though the original surface is uneven, resulting in a significant loss of appearance. That's what happens. For this reason, it was difficult to repair surface defects in this type of lightweight aerated concrete plates, and in reality, those with large defects were discarded.
（発明が解決しようとする問題点）
以上述べたように、表面が凹凸状に形成された軽量気泡
コンクリートでは、従来、有効な補修方法がなかったた
め、その確立が強く要望されていたのである。(Problems to be Solved by the Invention) As stated above, there has been no effective repair method for lightweight cellular concrete with an uneven surface, and there has been a strong desire to establish one.
そこで、本発明の目的は、凹凸状表面を有する軽量気泡
コンクリートであっても、見栄えを損うことなく表面欠
損を修復できる軽量気泡コンクリートの補修方法を提供
するにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for repairing lightweight cellular concrete that can repair surface defects without spoiling the appearance, even if the lightweight cellular concrete has an uneven surface.
［発明の構成］
（問題点を解決するための手段）
本発明に係る軽量気泡コンクリートの補修方法は、軽量
気泡コンクリート表面の欠損部分に補修材を埋め込み、
この補修材の硬化後にその表面を破砕工具により打撃し
て凹凸状になすところに特徴を存するものである。[Structure of the Invention] (Means for Solving the Problems) The method for repairing lightweight cellular concrete according to the present invention includes embedding a repair material into the defective portion of the surface of the lightweight cellular concrete,
After the repair material has hardened, its surface is struck with a crushing tool to create an uneven shape.
（作用）
欠損部分に埋め込まれた補修材が硬化したところで、そ
の表面が破砕工具により破砕されるから、補修材の表面
を本来の凹凸状表面に近似させることができる。(Function) Once the repair material embedded in the defective part has hardened, its surface is crushed by the crushing tool, so that the surface of the repair material can be approximated to the original uneven surface.
（実施例）
以下、本発明の一実施例につき第１図を参照して説明す
る。(Example) An example of the present invention will be described below with reference to FIG.
第１図に示す軽量気泡コンクリート板１は、例えば建築
物の外装材として使用されるもので、その表面は自然な
凹凸状に形成されている。これは例えば、周知方法によ
り成形・切断した軽量気泡コンクリート板に多数の硬質
粒体を投射して表面を浸蝕することにより凹凸状に形成
しｋものである。斯かる軽量気泡コンクリート板１は、
輸送時或は施工時等に大きな衝撃を受けると表面が欠損
することがあり、この欠損が軽量気泡コンクリート板１
の稜部に生じた例を第１図（Ａ）において符号「２」に
て示しである。このような勾損部２は次のようにして補
修する。A lightweight cellular concrete board 1 shown in FIG. 1 is used, for example, as an exterior material for a building, and its surface is formed into a natural uneven shape. For example, this is done by projecting a large number of hard particles onto a lightweight aerated concrete plate formed and cut using a well-known method to erode the surface, thereby forming an uneven shape. Such lightweight aerated concrete board 1 is
If the surface is subjected to a large impact during transportation or construction, the surface may be damaged, and this damage may cause damage to the lightweight aerated concrete board 1.
An example of this occurring on the ridge is shown by the reference numeral "2" in FIG. 1(A). Such a sloped portion 2 is repaired as follows.
まず、第１図（Ｂ）に示すように、軽量気泡コンクリー
ト板１の側縁部に型板３を宛がって固定し、欠損部２内
に補修材４を埋め込む。この補修°材４は例えばモルタ
ル系補修材である小野田ニー・エル・シー株式会社製の
モルホワイド（商品名）に硬化促進剤及び微量のアルミ
粉末を添加したものが好適するが、これに限られるもの
ではない。First, as shown in FIG. 1(B), the template 3 is fixed against the side edge of the lightweight aerated concrete board 1, and the repair material 4 is embedded in the defective part 2. This repair material 4 is preferably, for example, a mortar-based repair material made by Morwhite (trade name) manufactured by Onoda NLC Co., Ltd., to which a curing accelerator and a small amount of aluminum powder are added, but it is not limited to this. It's not a thing.
また、上記硬化促進剤としては、か焼ミョウバン石３０
〜７０重量％、消石灰２０〜７０玉−％、亜硝酸塩３〜
１０重量％及びｎｕ無水石コウ又は半水６３９１〜３重
量％を混合してなるものが好適し、その添加量は温度に
応じて３〜２０重量％とすることが望ましい。尚、この
硬化促進剤については、本出願人の出願に係る特願昭６
１−２０４２８２号に詳述しである。Further, as the hardening accelerator, calcined alumite 30
~70% by weight, slaked lime 20-70%, nitrite 3~
A mixture of 10% by weight and 6391 to 3% by weight of nu anhydrite or hemiwater is preferable, and the amount added is preferably 3 to 20% by weight depending on the temperature. Regarding this curing accelerator, please refer to the patent application filed in 1983 by the present applicant.
1-204282.
この後、型板３を取り外し、補修材４が未硬化の状態で
、補修材４の表面が軽量気泡コンクリート板１の表面と
同等なレベルとなり且つ目地用の溝が連続するようにナ
イフ等により仕上げる（第１図（Ｃ）参照）。そして、
補修材４を十分に硬化させ、その後に第１図（Ｄ）に示
すように例えば圧縮空気を利用してピストンを高速で往
復動させるエアーツール５に取付けた針状の破砕工具６
により補修材４の表面全域を多数回打撃する。すると、
補修材４の表面が破砕されて凹凸状になるため、欠損部
２の表面が軽量気泡コンクリート板１の本来の自然な凹
凸表面と近似するようになって見分けがつきにくくなる
。これにて、大きな欠損が発生した軽量気泡コンクリー
ト板１であっても、その欠損を容易に修復して廃棄処分
にすることなく利用できるものである。しかも、特に本
実施例のように硬化促進剤を添加した補修材４を使用す
れば、補修材４の凝結始発時間を最短３分程度、凝結終
結時間を最短２００分程とすることができるから、補修
に要する作業時間を著しく短縮することができ、施工能
率や作業コストの点で利点が大きい。After this, the template 3 is removed, and while the repair material 4 is uncured, use a knife or the like to make sure that the surface of the repair material 4 is at the same level as the surface of the lightweight aerated concrete board 1 and that the grooves for joints are continuous. Finish (see Figure 1 (C)). and,
After the repair material 4 has sufficiently hardened, a needle-shaped crushing tool 6 is attached to an air tool 5 that reciprocates a piston at high speed using, for example, compressed air, as shown in FIG. 1(D).
The entire surface of the repair material 4 is struck many times. Then,
Since the surface of the repair material 4 is crushed and becomes uneven, the surface of the defective part 2 becomes similar to the natural uneven surface of the lightweight aerated concrete board 1, making it difficult to distinguish. With this, even if the lightweight aerated concrete board 1 has a large defect, the defect can be easily repaired and the plate can be used without having to be disposed of. Moreover, especially if the repair material 4 to which a curing accelerator is added as in this embodiment is used, the initial setting time of the repair material 4 can be reduced to about 3 minutes at the minimum, and the setting time to the end of the repair material 4 to about 200 minutes at the shortest. , it is possible to significantly shorten the work time required for repair, and has great advantages in terms of construction efficiency and work costs.
尚、補修材４の表面を打撃するための破砕工具としては
、’Ｊ１図に示すような弔−の針状のものに限らず、複
数本の針状突起を圧縮空気或は電磁石にて高速で往復動
させるいわゆる高速多針夕ガネであっても良く、また先
端が尖鋭な鉄製ハンマーにて打撃するようにしても良い
。更には、軽量気泡コンクリート板１の凹凸表面に合致
させた比較的広い打撃面を有する打撃工具を予め製作し
ておき、これをエアーツール等に取付けて補修材の表面
を打撃するようにすれば、欠損部分の面積が大きい場合
でも極めて短時間に補修作業を完了させることができる
ようになる。この場合の破砕工具としては、例えば第２
図に示すようにして製作することができる。まず、多数
本の釘フを軽く束ねて先端部を軽量気泡コンクリート板
１の表面に宛がうことにより各釘７の先端部の位置を軽
量気泡コンクリート板１の凹凸表面に倣わせ、この後、
これらの釘７をその状態で溶接により一体化するのであ
る。Note that the crushing tool for striking the surface of the repair material 4 is not limited to the needle-shaped one shown in Figure J1, but can also be used to crush multiple needle-shaped protrusions at high speed with compressed air or an electromagnet. It may be a so-called high-speed multi-needle hammer that is reciprocated with a hammer, or it may be struck with an iron hammer with a sharp tip. Furthermore, if a striking tool with a relatively wide striking surface that matches the uneven surface of the lightweight aerated concrete plate 1 is manufactured in advance, and this tool is attached to an air tool or the like to strike the surface of the repair material. Even if the area of the defect is large, repair work can be completed in an extremely short time. In this case, the crushing tool is, for example, the second crushing tool.
It can be manufactured as shown in the figure. First, by lightly bundling a large number of nails and applying the tips to the surface of the lightweight cellular concrete board 1, the position of the tip of each nail 7 follows the uneven surface of the lightweight cellular concrete board 1, and then ,
These nails 7 are then welded together in this state.
その他、本発明は上記し且つ図面に示す実施例に限定さ
れるものではなく、例えば軽量気泡コンクリートの稜部
や角部以外の中央寄り部分に欠損が発生した場合に適用
したり、また表面を小鋼球の投射ではなく「はつり工具
」の打撃により凹凸状に形成した軽量気泡コンクリート
に適用する等、要旨を逸脱しない範囲内で種々変更して
実施することができる。In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but can be applied, for example, to cases where defects occur in areas near the center of lightweight cellular concrete other than the ridges and corners, or when the surface is damaged. Various modifications may be made without departing from the scope of the invention, such as application to lightweight aerated concrete formed into irregularities by impact with a chisel tool rather than by projection of small steel balls.
［発明の効果］
本発明は以上の説明から明らかなように、表面が凹凸状
に形成された軽量気泡コンクリートに欠損が生じても、
欠損部分を本来の凹凸状表面に近似した状態に修復する
ことができるので、大きな表面欠損が発生しても軽量気
泡コンクリートを廃棄処分にせずとも済むようになると
いう優れた効果を奏するものである。[Effects of the Invention] As is clear from the above description, the present invention is effective even when defects occur in lightweight aerated concrete with an uneven surface.
Since the defective part can be repaired to a state that approximates the original uneven surface, it has the excellent effect of eliminating the need to dispose of lightweight aerated concrete even if large surface defects occur. .
第１図は本発明の一実施例を工程順に示す断面図、第２
図は破砕工具の製作例を示す断面図である。
図面中、１は軽量気泡コンクリート板、２は欠損部、４
は補修材、６は破砕工具である。
（Ｂ）
第１図 （Ｄ）
第２図Figure 1 is a sectional view showing one embodiment of the present invention in the order of steps;
The figure is a sectional view showing an example of manufacturing a crushing tool. In the drawing, 1 is a lightweight aerated concrete board, 2 is a missing part, and 4
is a repair material, and 6 is a crushing tool. (B) Figure 1 (D) Figure 2
Claims (1)
表面欠損を補修するためのものであって、欠損部分に補
修材を埋め込み、この補修材の硬化後にその表面を破砕
工具により打撃して凹凸状になすことを特徴とする軽量
気泡コンクリートの補修方法。 ２、補修材は、予め硬化促進剤が添加・混合された上で
欠損部分に埋め込まれることを特徴とする特許請求の範
囲第１項に記載の軽量気泡コンクリートの補修方法。[Claims] 1. A device for repairing surface defects in lightweight cellular concrete with an uneven surface, by embedding a repair material into the defect and crushing the surface after the repair material has hardened. A method for repairing lightweight aerated concrete, which is characterized by making it uneven by hitting it with a tool. 2. The method for repairing lightweight cellular concrete according to claim 1, wherein the repair material is embedded in the defective portion after a curing accelerator is added and mixed in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29846986A JPS63151761A (en) | 1986-12-15 | 1986-12-15 | Method of repairing light-weight aerated concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29846986A JPS63151761A (en) | 1986-12-15 | 1986-12-15 | Method of repairing light-weight aerated concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63151761A true JPS63151761A (en) | 1988-06-24 |
| JPH0511179B2 JPH0511179B2 (en) | 1993-02-12 |
Family
ID=17860107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29846986A Granted JPS63151761A (en) | 1986-12-15 | 1986-12-15 | Method of repairing light-weight aerated concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63151761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183051A (en) * | 1988-12-30 | 1990-07-17 | Nichiee Yoshida Kk | Recycling and rejuvenating method of tile |
| JP2002335833A (en) * | 2001-05-18 | 2002-11-26 | Shimano Inc | Spool of spinning reel |
| JP2008283931A (en) * | 2007-05-21 | 2008-11-27 | Shimano Inc | Spool of spinning reel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029560U (en) * | 1983-08-03 | 1985-02-28 | 坂上 治 | Food container with heating device |
| JPS6198872A (en) * | 1984-10-20 | 1986-05-17 | 有限会社 柳工業 | Exterior construction method |
-
1986
- 1986-12-15 JP JP29846986A patent/JPS63151761A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029560U (en) * | 1983-08-03 | 1985-02-28 | 坂上 治 | Food container with heating device |
| JPS6198872A (en) * | 1984-10-20 | 1986-05-17 | 有限会社 柳工業 | Exterior construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183051A (en) * | 1988-12-30 | 1990-07-17 | Nichiee Yoshida Kk | Recycling and rejuvenating method of tile |
| JP2002335833A (en) * | 2001-05-18 | 2002-11-26 | Shimano Inc | Spool of spinning reel |
| JP2008283931A (en) * | 2007-05-21 | 2008-11-27 | Shimano Inc | Spool of spinning reel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0511179B2 (en) | 1993-02-12 |
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