JPS62233377A - Concrete water holding and ageing sheet - Google Patents
Concrete water holding and ageing sheetInfo
- Publication number
- JPS62233377A JPS62233377A JP7691386A JP7691386A JPS62233377A JP S62233377 A JPS62233377 A JP S62233377A JP 7691386 A JP7691386 A JP 7691386A JP 7691386 A JP7691386 A JP 7691386A JP S62233377 A JPS62233377 A JP S62233377A
- Authority
- JP
- Japan
- Prior art keywords
- water
- concrete
- sheet
- curing
- absorbing
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 58
- 239000004567 concrete Substances 0.000 title claims description 49
- 230000032683 aging Effects 0.000 title 1
- 206010016807 Fluid retention Diseases 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 description 9
- 238000009415 formwork Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011371 regular concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (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】
（ａ）、産業上の利用分野
本発明は、型枠の脱型後に、コンク’Ｊ−１−を養生す
る目的で使用されるコンクリート保水養生シートに関す
る。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Field of Application The present invention relates to a concrete water-retaining curing sheet used for curing concrete 'J-1- after demolding the formwork.
（ｂ）、従来の技術
通常、コック・ｊ−１・を打設しｔこ場合、早期（こ型
枠を脱型すると、コ〉タリート（こ含まれｔこ水分が蒸
発してしまい、乾燥収縮を生じ、予期し１２強度が発現
出来なくなる不都合が有った。しかし、長期間、型枠を
放置することは、当該型枠の他・＼の転用が出来なくな
るので、効率的な施工が出来なくなる欠点が有る。(b) Conventional technology Usually, when the cock is poured and the mold is removed at an early stage, the moisture contained in the cock evaporates and the drying process occurs. There was an inconvenience that shrinkage occurred and the expected 12 strength could not be achieved.However, if the formwork was left for a long period of time, the formwork could not be used for other purposes, so efficient construction was not possible. There is a drawback that it cannot be done.
なお、超高層鉄筋コンクリ−１・建物を施工する場き等
においては、柱等に超高強度コンクリートを用いるが、
このコンクリートは通常のコンクリートよりも、より十
分な養生を必要とする。こうした対策として、脱型後の
コンクリ−１・表面に対して散水し、コンクリートの乾
燥を防止する方法が用いられている。In addition, when constructing ultra-high-rise reinforced concrete buildings, ultra-high strength concrete is used for columns, etc.
This concrete requires more thorough curing than regular concrete. As a countermeasure against this, a method is used to prevent the concrete from drying by sprinkling water on the surface of the concrete 1 after demolding.
（Ｃ）１発明が解決しようとする問題点しかし、この方
法では、散水した水が直ちに乾燥してしまい、何度も散
水する必要が有り、手間がかかるばかりか、散水の度に
生じる余分な水で周囲が水浸しになってしまう不都合が
有る。(C) 1 Problems to be Solved by the Invention However, in this method, the sprinkled water dries immediately and it is necessary to sprinkle water many times, which not only takes time and effort, but also causes unnecessary There is an inconvenience that the surrounding area becomes flooded with water.
本発明は、前述の欠点を解消すべく、型枠の早期脱型が
出来、しかも散水の場合のような手間や浸水の危険を生
じさせること無く、コンクリー１・の養生が出来る、コ
ンクリ−１・保水養生シートや提供することを目的とす
るものである。In order to solve the above-mentioned drawbacks, the present invention has developed a concrete 1.・The purpose is to provide water retention curing sheets and other products.
（Ｉｌ＋ 、問題点を解決するための手段即ち、本発明
は、不透；２性を有するシート部分（３ａ）を有し、該
シート部分（３ａ）の打設コンタ’Ｊ−）（５１側に複
数の吸水保水部材の支持手段（３ｅ）を設け、該支持手
段（３ｅ）に吸水保水部材（７）を着脱自在に設けて構
成される。(Il+, means for solving the problem, that is, the present invention has a sheet portion (3a) having opaque; bisexual properties, and the pouring contour 'J-) of the sheet portion (3a) (51 side A support means (3e) for a plurality of water-absorbing and water-retaining members is provided at the support means (3e), and a water-absorbing and water-retaining member (7) is detachably provided on the support means (3e).
なお、括弧内の番号等は、図面における対応する要素を
示す、便宜的なものであり、従って、本記述は図面上の
記載に限定拘束されろものではない。以下のｒ （ｅ）
、作用ｊ１７）欄についても同様である。Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description should not be limited to the descriptions in the drawings. r (e) below
, the same applies to the effect j17) column.
（ｅ）６作用
上記した構成により、本発明は、支持手段（３ｅ）内の
吸水保水部材（７）から水が蒸発し、養生シート （３
）のけ）けられた打設コンクリート（５）の表面を常に
湿潤した雰囲気に保持するように作用する。(e) 6 Effects With the above-described configuration, the present invention allows water to evaporate from the water absorbing water retaining member (7) in the support means (3e), and the curing sheet (3
) It acts to keep the surface of the poured concrete (5) always in a moist atmosphere.
（ｆ）、実施例 以下、本発明の実施例を図面に基づき説明する。(f), Example Embodiments of the present invention will be described below based on the drawings.
第１図は本発明によるコンクリート保水養生シートの一
実施例が用いられたコンクリート打設現場の斜視図、
第２図は本発明によるコノクリ−１・保水養生シー！・
の一実施例を示す正面図、
第３図はシート支持部の断面図である。Fig. 1 is a perspective view of a concrete placement site where an embodiment of the concrete water-retention curing sheet according to the present invention is used, and Fig. 2 is a perspective view of a concrete water-retention curing sheet according to the present invention!・
FIG. 3 is a front view showing one embodiment, and FIG. 3 is a sectional view of the seat support portion.
コンクリ−Ｉ・打設物１は、第１図に示すように、床２
を有しており、床２には脱型された直後の打設コンクリ
ート５ （以下、脱型された直後のコンクリ−１・で養
生が完了していないコンクリ−）・を称して、「打設コ
ンクリート」と言う）が、床２に対して直立する形で設
けられている。また、打設コンクリート５の側面の、そ
れまで型枠が設けられていた部分には、本発明によるコ
ンクリ−ｊ・保水養生シー１−３．３が設けられている
。As shown in Fig. 1, the concrete I/concrete work 1 is
The floor 2 has concrete 5 that has just been demolded (hereinafter referred to as concrete 1 that has not yet been cured immediately after demolding). (referred to as "concrete construction") is provided in a form that stands upright with respect to the floor 2. Furthermore, a concrete j/water retention curing sheet 1-3.3 according to the present invention is provided on the side surface of the poured concrete 5, where the formwork was previously provided.
コンクリート保水養生シート３は、第２図に示すように
、全体がビニール等の不透湿性を有する材料から形成さ
れた四角形のシート部分３ａと該ンート部分３ａの図中
上部に設けられたｖｔ３ｂとや有しており、シート部分
３ａの打設コレクリ−１・側面５ａに対向する面３ｄに
は、第２図及び第３図に示すように、メツシュ状の素材
からなるポケット３ｅが所定の間隔で、第２図上下左右
方向に多数形成されている。該ポケット３ｅには、第３
図上方に、挿入口３ｆが開口形成されており、更に該各
ポケット３ｅには該ポケッ）・３ｅの形状に対応して四
角形状に形成されたスポンジ、特殊アクリル酸系の吸水
性樹脂等からなる吸水保水部材７が、挿入支持されてい
る。As shown in FIG. 2, the concrete water-retaining curing sheet 3 has a rectangular sheet portion 3a made entirely of a moisture-impermeable material such as vinyl, and a vt3b provided at the upper part of the vent portion 3a in the figure. As shown in FIGS. 2 and 3, pockets 3e made of a mesh-like material are provided at predetermined intervals on the surface 3d of the sheet portion 3a facing the pouring collector 1 and the side surface 5a. A large number of them are formed in the vertical and horizontal directions in FIG. The pocket 3e has a third
An insertion port 3f is formed at the top of the figure, and each pocket 3e is made of a sponge formed into a square shape corresponding to the shape of the pocket 3e, a special acrylic acid-based water absorbent resin, etc. A water absorbing water retaining member 7 is inserted and supported.
コンクリート保水養生シート３等（よ、以上のような構
成を有するので、型枠の早期脱型後の打設コンクリート
５に対する養生を行う場合には、吸水保水部材７をポケ
ット３ｅから出した状態で、水中に浸漬させ、吸水保水
部材７に水を吸収させろ。吸水保水部材７に水が十分に
吸収されたところで、該保水状態の吸水保水部材７をコ
ンクＪ −ト保水養生シート３の各ポケット３ｅに、挿
入口３［を介して挿入し、第３図に示すように支持させ
る。Concrete water retention curing sheet 3, etc. (Since it has the above configuration, when curing the poured concrete 5 after early demolding of the formwork, the water absorption and water retention member 7 should be taken out from the pocket 3e. , immerse it in water and let the water absorption and water retention member 7 absorb water. When the water absorption and water retention member 7 has sufficiently absorbed water, the water absorption and water retention member 7 in the water retention state is placed in each pocket of the concrete J-to water retention curing sheet 3. 3e through the insertion port 3[ and supported as shown in FIG.
こうして、全てのボケッｉ−３ｅに保水状態の吸水保水
部材７が挿入されたところで、該コンクリート保水養生
シー）・３を、第３図に示すように、打設コンクＩＪ−
１−５に適宜に植設されｔこ埋込み金具５ｂに棧３ｂを
、図中上方から引っ掛ける形で吊下する。この状態で、
コンクリ−１・保水養生シート３を放置しておくと、ポ
ケッｌ−３ｅ中の吸水保水部材７から徐々に水が蒸発し
、その蒸発した水はメツシュ状のポケット３ｅの表面を
透過して、コンクリ−１・保水養生シート３と打設コン
クリ−ｊ・５との間の保湿空間１０内に充満し、打設コ
ンクリート５の側面５ａ、即ち表面は湿潤した雰囲気に
維持される。吸水保水部材７からの水の蒸発は、該吸水
保水部材７に含まれた水が無くなるまで継続的に行われ
るので、吸水保水部材７の量を適宜に設定しておくこと
により、１週間程度は水を補給することな（、保湿空間
１０内をコンクリｈの養生に適しｔコ扇度状態に維持す
ることが出来ろ。従って、打設コンクＩＪ −１−５の
乾燥は効果的に防止され、適正な養生が行われろ。In this way, when the water-absorbing and water-retaining member 7 in a water-retaining state has been inserted into all the holes i-3e, the concrete water-retaining curing sheet).
1-5, and hang it from above in the figure by hooking it onto the embedded metal fitting 5b. In this state,
If the concrete 1/water retaining curing sheet 3 is left as it is, water will gradually evaporate from the water absorbing water retaining member 7 in the pocket 1-3e, and the evaporated water will permeate the surface of the mesh-like pocket 3e. The moisture retention space 10 between the concrete 1/water retention curing sheet 3 and the poured concrete j/5 is filled, and the side surface 5a, that is, the surface of the poured concrete 5, is maintained in a moist atmosphere. Evaporation of water from the water-absorbing and water-retaining member 7 continues until the water contained in the water-absorbing and water-retaining member 7 is used up, so by setting the amount of the water-absorbing and water-retaining member 7 appropriately, it can last for about a week. By replenishing water, the inside of the moisturizing space 10 can be maintained at a temperature suitable for curing the concrete. Therefore, drying of the poured concrete IJ-1-5 can be effectively prevented. and provide proper care.
また、コンクリ−１・保水養生シート３のシート部分３
ａは、不透；２性を有する材料から形成されているので
、吸水保水部材７から蒸発した水が、保湿空間１０側の
反対側、即ち外気側に無駄に流出してようことは無い。In addition, the sheet part 3 of the concrete 1/water retention curing sheet 3
Since a is made of an impermeable material, the water evaporated from the water-absorbing and water-retaining member 7 will not wastefully flow out to the side opposite to the moisturizing space 10, that is, to the outside air side.
更に、養生の途中で、雨が降−っても、雨はり−ト部分
３ａにより、コンクリート保水養生シー）・３内に侵入
することが防止さねろので、過度の水分が吸水保水部材
７に吸水さね、コンクリート採水養生シート３が破損し
て１、まうような事態の発生も防止することが出来ろ。Furthermore, even if it rains during curing, the rain beam part 3a prevents it from entering the concrete water-retaining curing sheet 3, preventing excessive moisture from entering the water-absorbing water-retaining member 7. It is also possible to prevent the occurrence of a situation where the concrete water curing sheet 3 is damaged due to water absorption.
なお、吸水採水部材７中の水が全て蒸発してしまい、し
かも、まだ打設コンクリート５の養生が完了していなし
）場合には、ポケット３ｅから該吸水保水部材７ ｔｚ
はを取り出して、再度吸水させてポケット３ｅに戻すだ
けで、水の補給が完了する。In addition, if all the water in the water absorbing water sampling member 7 has evaporated and the curing of the poured concrete 5 has not yet been completed, the water absorbing water retaining member 7 is removed from the pocket 3e.
Replenishment of water is completed by simply taking out the water, absorbing water again, and returning it to the pocket 3e.
なお、冬期等で凍結の恐れが有る場合、または養生時間
を短縮化したい場合等には、シート部分３ａを断熱性を
有する形に加工して（具体的には、シート部分３ａを、
断熱性膜と不透湿性膜ととの積層構造とするか、断熱性
及び不透ｉ♀性を共に有する材料からシート部分３ａを
形成する）、外気温度を遮断すると共に、打設コノクリ
ート５から放出されろ水和熱を保湿空間１０中に保持し
て、吸水保水部材７中の水の凍結を防止する（冬期打設
の場合）と共に、該吸水保水部材７からの蒸発動作を促
進させ、養生効果を一層高めるように構成することも可
能である。In addition, if there is a risk of freezing in the winter, or if you want to shorten the curing time, the sheet portion 3a is processed into a shape that has heat insulation properties (specifically, the sheet portion 3a is
The sheet portion 3a is formed of a laminated structure of a heat-insulating film and a moisture-impermeable film, or is made of a material that has both heat-insulating properties and impermeable properties), which blocks outside air temperature and prevents the cast conocret 5 from entering. The released heat of hydration is retained in the moisturizing space 10 to prevent the water in the water absorbing water retaining member 7 from freezing (in the case of pouring in winter), and to promote the evaporation action from the water absorbing water retaining member 7. It is also possible to configure it to further enhance the curing effect.
また、棧３ｂ等の棒状部材を設けることにより、コンク
リ−１・保水養生シート３の打設コンクリート５への設
置を、該棒状部材を介して容易に行うことが出来るばか
りか、使用前後の保管及び収納に際しても、該棒状部材
を手掛かりにして作業を行うことが出来、シート部分３
ａ等を不用意に傷つけたりすることを未然に防止するこ
とが出来ろ。In addition, by providing a rod-shaped member such as the rod 3b, it is not only possible to easily install the concrete 1 and the water-retaining curing sheet 3 on the poured concrete 5 via the rod-shaped member, but also to store it before and after use. And when storing, the work can be done using the rod-shaped member as a guide, and the seat portion 3
You should be able to prevent inadvertent damage to items such as a.
（ｇ）０発明の効果
以上、説明したように、本発明によれば、不透湿性を有
するシート部分３ａを有し、該シート部分３ａの打設コ
ンクＩＪ −１−５側に複数のポケット３ｅ等の吸水保
水部材７の支持手段を設け、該支持手段に吸水保水部材
７を着脱自在に設けて構成したので、吸水保水部材７に
水を含ませた形で支持手段に挿入し、その状態でコンク
リ−１・保水養生シート３を、打設コンクリート５の表
面を被覆する形で設置することにより、長期間に亙り、
打設コンクリ＋・５表面を湿潤した養生に良好な雰囲気
に維持することが出来、型枠を早期に脱型しても、コン
クリートの乾燥収縮を未然に防止することが出来ろばか
りか、散水による方法に比して、手間がかからず、余分
な水で周囲が水浸しになるようなことも無い。(g) 0 Effects of the Invention As explained above, according to the present invention, the sheet portion 3a is moisture-impermeable, and the sheet portion 3a has a plurality of pockets on the pouring concrete IJ-1-5 side. 3e or the like is provided, and the water absorbing and water retaining member 7 is detachably attached to the supporting means, so that the water absorbing and retaining member 7 is inserted into the supporting means in a state soaked with water, and By installing the concrete 1 and water-retaining curing sheet 3 to cover the surface of the poured concrete 5, it will last for a long time.
It is possible to maintain a good atmosphere for moist curing on the poured concrete + 5 surface, and even if the formwork is removed early, it is possible to prevent drying shrinkage of concrete, as well as water spraying. This method requires less effort and does not cause the surrounding area to become flooded with excess water.
また、吸水採水部材７が、支持手段から自由に取り外し
が出来るので、吸水保水部材７への水の補給が、コンク
リート保水養生シート３全体を取り外すことな（行うこ
とが出来、極めて便利であるばかりか、吸水保水部材７
が変電なる（走用によりその吸水保水特性が劣化しても
、該劣化した吸水保水部材７のみを交換すればいいので
、該シート全体、又は該シートに使用している全ての吸
水採水部材７を交換する必要は無く、極めて経済的であ
る。In addition, since the water absorption and water sampling member 7 can be freely removed from the support means, water can be replenished to the water absorption and water retention member 7 without removing the entire concrete water retention curing sheet 3, which is extremely convenient. Not only that, but the water absorbing and retaining member 7
(Even if its water absorption and water retention properties deteriorate due to running, it is only necessary to replace the deteriorated water absorption and water retention member 7. There is no need to replace 7, making it extremely economical.
第１図は本発明によるコンクリ−）・保水養生シートの
一実施例が用いられたコンクリート打設現場の斜視図、
第２図は本発明によるコンクリート保水養生シートの一
実施例を示す正面図、゛
第３図はシート支持部の断面図てある。
３・・・・・コンクリート保水養生シーｊ・３ａ・・・
・・シート部分
３ｅ・・・・・支持手段（ボヶッｌ−）５−・ ・打設
コンクリ−１・
７・・・・・・吸水保水部材
出願人 三井建設株式会社
代理人 弁理士 相１）伸二
（ほか１名）
第１図
″５０Fig. 1 is a perspective view of a concrete placement site where an embodiment of the concrete water-retaining curing sheet according to the present invention is used; Fig. 2 is a front view showing an embodiment of the concrete water-retaining curing sheet according to the present invention;゛Figure 3 is a sectional view of the seat support section. 3... Concrete water retention curing sea j 3a...
... Sheet portion 3e ... Supporting means (boggle) 5 - - Pouring concrete 1. 7 ... Water absorbing and retaining member applicant Mitsui Construction Co., Ltd. agent Patent attorney Phase 1) Shinji (and 1 other person) Figure 1 ″50
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7691386A JPS62233377A (en) | 1986-04-03 | 1986-04-03 | Concrete water holding and ageing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7691386A JPS62233377A (en) | 1986-04-03 | 1986-04-03 | Concrete water holding and ageing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62233377A true JPS62233377A (en) | 1987-10-13 |
Family
ID=13618921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7691386A Pending JPS62233377A (en) | 1986-04-03 | 1986-04-03 | Concrete water holding and ageing sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62233377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0540506U (en) * | 1991-10-30 | 1993-06-01 | セイコウ技研株式会社 | Concrete protection mat |
-
1986
- 1986-04-03 JP JP7691386A patent/JPS62233377A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0540506U (en) * | 1991-10-30 | 1993-06-01 | セイコウ技研株式会社 | Concrete protection mat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2083140A1 (en) | Method for plaza deck construction | |
| JPS62233377A (en) | Concrete water holding and ageing sheet | |
| JP2010084506A (en) | Temperature rise suppression system | |
| CN207512942U (en) | Make somebody a mere figurehead moisture-proof construction in a kind of ground | |
| JPH0447099B2 (en) | ||
| JPS62182364A (en) | Method for water holding ageing of concrete | |
| JP2004298146A (en) | Planting apparatus and drain pan | |
| JP3087019B2 (en) | Ship bottom insulation base and construction method thereof, and wooden house having the ship bottom insulation foundation | |
| EP1424003A1 (en) | Holder assembly | |
| JP2004057052A (en) | Vegetation pallet assembly | |
| JP4437072B2 (en) | Concrete wet curing apparatus and method | |
| CN221584002U (en) | Environment-friendly cement curing means | |
| JPS60238567A (en) | Concrete ageing mat | |
| JPH024928Y2 (en) | ||
| JPH02210155A (en) | Concrete-placing formwork and concrete wall formation therewith | |
| CN221751292U (en) | Ceramic cinerary casket with dehumidification dampproofing structure | |
| JP2002272277A (en) | Planter | |
| Appert et al. | Simulating Evaporation in Porous Media with the Lattice Gas Method | |
| JP3773251B1 (en) | Fresh flower holder | |
| JPS628298Y2 (en) | ||
| JPH044812Y2 (en) | ||
| JP3824986B2 (en) | Rooftop greening equipment | |
| JPH0216977Y2 (en) | ||
| JPH0610021Y2 (en) | Insulation mat for rooftop construction | |
| JP2006161410A (en) | Cooling structure of building |