JPH07103684B2 - Concrete curing method - Google Patents
Concrete curing methodInfo
- Publication number
- JPH07103684B2 JPH07103684B2 JP26834787A JP26834787A JPH07103684B2 JP H07103684 B2 JPH07103684 B2 JP H07103684B2 JP 26834787 A JP26834787 A JP 26834787A JP 26834787 A JP26834787 A JP 26834787A JP H07103684 B2 JPH07103684 B2 JP H07103684B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- curing
- weir
- weir board
- adhesive
- 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 - Lifetime
Links
- 238000001723 curing Methods 0.000 title description 50
- 239000000463 material Substances 0.000 claims description 41
- 230000000694 effects Effects 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009415 formwork Methods 0.000 description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241001562081 Ikeda Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明は各種コンクリート構造物の構築時におけるコ
ンクリートの養生方法に関する。TECHNICAL FIELD The present invention relates to a method for curing concrete during the construction of various concrete structures.
＜従来の技術＞ 一般に、コンクリート打設後に、急速にこのコンクリー
トから水分が逃げてしまうと、水和反応不十分による強
度不足や乾燥収縮によるひび割れが発生しやすくなる。
このため、かかるコンクリート打設後の水分の蒸発など
による水和反応不十分を防止するため、コンクリートが
十分に硬化するまで養生させるという措置がとられる。
そして、この養生方法として、コンクリート打設後、一
定期間以上せき板を外さないでおく養生方法、せき板を
取外した後にコンクリートに散水を行なう湿潤養生、打
設したコンクリート上にシートなどの遮蔽材料を被せる
遮蔽養生、コンクリート表面にプラスチックなどの養生
塗膜を形成する被覆養生などがあり、かかるコンクリー
トの養生管理を忠実に実行することにより、水和反応を
促進して、強度および品質のすぐれたコンクリート構造
物を得ることができる。<Prior Art> Generally, when water escapes from this concrete rapidly after pouring the concrete, insufficient strength due to insufficient hydration reaction and cracking due to drying shrinkage are likely to occur.
Therefore, in order to prevent the hydration reaction from being insufficient due to evaporation of water after the concrete is poured, measures are taken to cure the concrete until it is sufficiently hardened.
As this curing method, a curing method in which the dam is not removed for a certain period of time after placing the concrete, a wet cure in which water is sprinkled on the concrete after removing the dam, and a shielding material such as a sheet on the placed concrete. There is a shield curing that covers the surface of the concrete, and a coating curing that forms a curing coating film such as plastic on the concrete surface. By faithfully executing the curing management of such concrete, the hydration reaction is promoted and the strength and quality are excellent. A concrete structure can be obtained.
＜発明が解決しようとする問題点＞ しかしながら、施工作業の迅速化や費用の理由から今日
では、コンクリート打設後十分な養生期間を経ないまま
せき板の取外しが早期に行なわれており、このためコン
クリートが日光に直接曝されて水分が急速に蒸発し、養
生不足によるコンクリート強度の低下やひび割れの発生
を招き、コンクリート構造物の品質劣化が避けられない
などの問題点があった。一方、せき板を取外した後に、
散水などによる上記の養生を行っても、その期間や施工
範囲に作業上の限界があり、その養生が不十分となるの
を避けられない。また、せき板の取外しと養生開始時期
とに時間的ずれがあることから、コンクリートの劣化防
止上重要な初期養生が十分に行われないなどの問題点が
あった。<Problems to be Solved by the Invention> However, today, due to speeding up of construction work and cost, the removal of the weir board is performed early without a sufficient curing period after placing concrete. Therefore, there is a problem that concrete is directly exposed to sunlight and moisture evaporates rapidly, resulting in deterioration of concrete strength and cracking due to insufficient curing, and quality deterioration of concrete structure cannot be avoided. On the other hand, after removing the weir,
Even if the above-mentioned curing is performed by sprinkling water, there is a limit in working period and construction range, and it is inevitable that the curing becomes insufficient. In addition, there is a problem that the initial curing, which is important for preventing deterioration of concrete, is not sufficiently performed because there is a time lag between the removal of the weir and the curing start time.
この発明はかかる従来の問題点に着目してなされたもの
であり、コンクリート打設時からコンクリート打設面に
養生効果のある材料を接触せしめ、せき板を外した際そ
の材料を上記コンクリート打設面に付着させるようにす
ることにより、早期の型枠の取外し並びに十分な養生を
可能にするコンクリートの養生方法を提供することを目
的とする。The present invention has been made in view of the above-mentioned conventional problems, and a material having a curing effect is brought into contact with the concrete placing surface from the time of concrete placing, and the material is subjected to the above concrete placing when the dam is removed. It is an object of the present invention to provide a concrete curing method that enables early removal of the formwork and sufficient curing by making it adhere to the surface.
＜問題点を解決するための手段＞ この発明にかかるコンクリートの養生方法は、コンクリ
ートの養生効果がある材料を型わくのせき板に予め取り
付けておき、コンクリートをそのせき板内に打設した
後、上記材料を上記コンクリート表面に付着残留させ、
このコンクリート表面に養生層を形成するようにしたも
のである。<Means for Solving Problems> A concrete curing method according to the present invention is a method in which a material having a curing effect for concrete is previously attached to a weir board and concrete is placed in the weir board. , The material is left on the concrete surface,
A curing layer is formed on the surface of this concrete.
＜作用＞ この発明における養生効果のある材料は、せき板に予め
取り付けられるか、そのせき板に対しての付着力よりも
コンクリートへの付着力が大きく、コンクリートを打設
した後にこのコンクリート面に付着残留し、これがコン
クリートと一体化して養生層を形成し、せき板を取外し
た後も養生環境を良好に維持する。すなわち、上記材料
は透湿抵抗性、遮断性を有し、日射、風などの劣化原因
を排除するとともに、コンクリート中の水分の急激な蒸
発を防止し、これにより強度発現時の初期劣化やひび割
れを防止するようにする。また、上記材料はコンクリー
ト打設面にそのまま恒久的に残すことで、中性化や環境
塩害からコンクリートを保護するようにする。<Operation> The material having a curing effect in the present invention is attached to the weir board in advance, or the adhesive force to the concrete is larger than the adhesive force to the weir board, and the concrete surface after the concrete is placed is placed on the concrete surface. It adheres and remains, which is integrated with concrete to form a curing layer, which maintains a good curing environment even after removing the weir board. That is, the above materials have moisture permeability resistance and barrier properties, eliminate the causes of deterioration such as solar radiation and wind, and prevent the rapid evaporation of water in the concrete, which results in initial deterioration and cracking during strength development. To prevent. Further, the above materials are left permanently on the concrete pouring surface as they are to protect the concrete from neutralization and environmental salt damage.
＜発明の実施例＞ 以下に、この発明の一実施例を図について説明する。第
１図、第２図および第３図はコンクリートの養生方法の
一実施例を示す断面図であり、図において、１は型わく
のせき板、２はせき板１の位置を固定する支保工、３は
粘着剤、４はこの粘着剤３を介してせき板１に取り付け
た養生効果のある材料、５はこの材料４の粘着剤３があ
る側とは反対側に塗布された接着剤である。<Embodiment of the Invention> An embodiment of the present invention will be described below with reference to the drawings. 1, 2, and 3 are cross-sectional views showing an embodiment of a concrete curing method, in which 1 is a framed weir board and 2 is a support work for fixing the position of the weir board 1. 3 is a pressure sensitive adhesive, 4 is a material having a curing effect attached to the weir board 1 through the pressure sensitive adhesive 3, and 5 is an adhesive applied to the side of the material 4 opposite to the side having the pressure sensitive adhesive 3. is there.
次に、かかる養生効果のある材料４を持ったせき板１に
よってコンクリート施工する工程を、上記各図に従って
順次説明する。まず、第１図に示すように、型枠のせき
板１の内側に粘着剤３を介して上記養生効果のある材料
４を取り付け、このせき板１の外側に支保工２を施工し
て、このせき板１の位置を固定し、型わくを組立てる。
また、材料４の粘着剤３とは反対側の面には予め接着剤
５が塗布してある。次に、この接着剤５が塗布してある
材料４の内側に、通常の手段を用いてコンクリート６を
第２図に示すように打設して、これが硬化するのを待
つ。すると、この硬化しているコンクリート６の表面に
は、接着剤５を介して材料４が固く結着する。こうし
て、ある程度コンクリート６の硬化が進んだところで、
上記支保工２およびせき板１を順次取外す。このとき、
第３図に示すようにコンクリート６の表面に付着した養
生効果のある材料４はそのまま残り、せき板１を取外し
た後も、コンクリートの養生作用をそのまま維持させる
ことができる。従って、型わくを早期に取外しても、養
生に特別の手間をかけずにコンクリートの劣化防止を図
れる。Next, the steps of concrete construction using the weir board 1 having the material 4 having a curing effect will be sequentially described with reference to the above drawings. First, as shown in FIG. 1, the material 4 having the above-mentioned curing effect is attached to the inside of the weir board 1 of the mold via the adhesive 3, and the support 2 is constructed on the outer side of the weir board 1. The position of the weir plate 1 is fixed and the frame is assembled.
An adhesive 5 is applied in advance to the surface of the material 4 opposite to the adhesive 3. Next, inside the material 4 to which the adhesive 5 has been applied, concrete 6 is cast by a conventional means as shown in FIG. 2, and it is waited until it hardens. Then, the material 4 is firmly bound to the surface of the hardened concrete 6 via the adhesive 5. In this way, where the concrete 6 has hardened to some extent,
The support 2 and the dam 1 are sequentially removed. At this time,
As shown in FIG. 3, the material 4 having a curing effect adhered to the surface of the concrete 6 remains as it is, and the curing effect of the concrete can be maintained as it is even after the weir plate 1 is removed. Therefore, even if the formwork is removed at an early stage, it is possible to prevent the deterioration of the concrete without requiring special work for curing.
この場合においては、養生硬化のある材料４の、せき板
１に対する付着力よりも、コンクリート６に対する接着
力を強くする必要があるため、そのせき板１に平滑材を
取付けたり、剥離剤を塗布したりした後、上記粘着剤３
などの化学的手段や針やホッチキス針などの機械的手段
により、養生効果のある材料４がせき板１に取り付けら
れる。In this case, since it is necessary to make the adhesive force to the concrete 6 stronger than the adhesive force to the weir board 1 of the material 4 that is cured and cured, a smooth material is attached to the weir board 1 or a release agent is applied. After doing the above, the adhesive 3
The material 4 having a curing effect is attached to the weir board 1 by chemical means such as or mechanical means such as a needle or a stapler.
また、養生効果のある材料４としては、透湿抵抗性、遮
断性を有する無機系あるいは有機系の塗膜、板材、シー
トを用いることができ、それらの素材として、アクリル
樹脂、塩化ビニル樹脂などのプラスチック材料や、ステ
ンレス、アルミなどの金属材料や、セメントなどの無機
材料が用いられる。なお、養生材自身が接着性を有する
場合には、接着剤５は不要となる。Further, as the material 4 having a curing effect, it is possible to use an inorganic or organic coating film, a plate material or a sheet having a moisture permeation resistance and a blocking property, such as an acrylic resin, a vinyl chloride resin or the like. The plastic materials, metal materials such as stainless steel and aluminum, and inorganic materials such as cement are used. If the curing material itself has adhesiveness, the adhesive 5 is unnecessary.
また、これらの材料４は所定の養生期間後、除去するこ
とも、恒久的に残すことも可能であり、残した場合コン
クリート６の表面の恒久的保護が図れ、そのまま表面仕
上材になり、また他の仕上材の下地とすることもでき
る。Further, these materials 4 can be removed or permanently left after a predetermined curing period, and if left, the surface of the concrete 6 can be permanently protected and can be directly used as a surface finishing material. It can also be used as a base for other finishing materials.
このように、せき板１を取外した後も、コンクリート６
の養生を確実に実施でき、型枠取外しの早期化並びにコ
ンクリートの十分な品質確保が可能になる。In this way, even after removing the weir 1, the concrete 6
It is possible to carry out the curing of the concrete reliably, and it is possible to speed up the removal of the formwork and ensure sufficient quality of the concrete.
第４図、第５図、第６図および第７図はこの発明の他の
実施例を示す工程図である。これを説明すると、第４図
に示すように型枠のせき板１の内側に粘着剤３を介して
養生効果のある材料４を取付け、このせき板１の外側に
支保工２を施工して、そのせき板１の位置を固定し、型
わくを組立てる。次に、せき板１の内側、すなわち養生
効果のある材料４の内側に通常の方法でコンクリート６
を打設し、第５図に示すようにして、これが硬化するの
を待つ。このとき養生効果のある材料４はコンクリート
６に浸透又は反応し、結合層７を形成して一体化され
る。ある程度コンクリートの硬化が進んだところで、上
記支保工２およびせき板１を順次取外す。すると、第６
図に示すように浸透又は反応によってコンクリート６に
付着した養生効果のある材料４が結合層７とともにコン
クリート６の表面に残り、養生効果のある材料４と結合
層７とによる養生層８が形成される。FIG. 4, FIG. 5, FIG. 6 and FIG. 7 are process drawings showing another embodiment of the present invention. Explaining this, as shown in FIG. 4, a material 4 having a curing effect is attached to the inside of the weir board 1 of the form via an adhesive 3, and the support 2 is installed on the outer side of the weir board 1. , Fix the position of the weir board 1 and assemble the frame. Next, the concrete 6 is applied to the inside of the weir board 1, that is, the inside of the material 4 having a curing effect by a usual method.
And then wait for it to harden as shown in FIG. At this time, the material 4 having a curing effect permeates or reacts with the concrete 6 and forms a bonding layer 7 to be integrated. When the concrete has hardened to some extent, the support 2 and the dam 1 are sequentially removed. Then, the sixth
As shown in the figure, the material 4 having a curing effect attached to the concrete 6 by permeation or reaction remains on the surface of the concrete 6 together with the bonding layer 7, and the curing layer 8 is formed by the material 4 having a curing effect and the bonding layer 7. It
このように、コンクリート打設後直ちに養生効果のある
材料４がコンクリート６に浸透又は反応することによ
り、コンクリート６表面に養生層８を形成することが可
能になり、せき板１の取外しがコンクリート６がある程
度硬化した時点で実施可能になり、コンクリートの劣化
も何ら生じることがない。In this way, the material 4 having a curing effect permeates or reacts with the concrete 6 immediately after placing the concrete, so that the curing layer 8 can be formed on the surface of the concrete 6 and the removal of the weir board 1 from the concrete 6 can be performed. It becomes practicable once it has hardened to some extent, and no concrete deterioration occurs.
第７図は養生効果のある材料４の裏に突起９を設けてコ
ンクリートの打設により直接結着できる方法を示したも
のである。FIG. 7 shows a method in which projections 9 are provided on the back of the material 4 having a curing effect so that the material can be directly bonded by pouring concrete.
＜発明の効果＞ 以上詳述したように、この発明によれば、コンクリート
に養生効果がある材料を、型枠のせき板に予め取り付け
ておき、コンクリートをそのせき板内に打設した後、上
記材料を上記コンクリート表面に付着させるようにした
ので、コンクリートの打設直後から養生を直ちに開始さ
せ、これをせき板を取外した後も引続き維持させること
ができる。この結果、コンクリートの品質が良好に保持
でき、コンクリートの強度発現が確実に行われ、ひび割
れの発生を防止できるほか、コンクリートの中性化を防
止し、環境塩害などの悪環境にも十分に耐えるコンクリ
ート構造物をローコストに得ることができる効果があ
る。<Effects of the Invention> As described above in detail, according to the present invention, a material having a curing effect on concrete is previously attached to the dam of the formwork, and after the concrete is placed in the dam, Since the above materials are made to adhere to the surface of the concrete, it is possible to start curing immediately after placing the concrete and continue to maintain it even after removing the weir board. As a result, the quality of the concrete can be kept good, the strength of the concrete can be reliably expressed, the occurrence of cracks can be prevented, the neutralization of concrete can be prevented, and it can withstand adverse environments such as environmental salt damage. There is an effect that a concrete structure can be obtained at low cost.
第１図乃至第３図はこの発明にかかるコンクリートの養
生方法の一実施工程を示す断面図、第４図乃至第７図は
この発明の他の実施例によるコンクリートの養生方法を
示す断面図である。 １……せき板、２……支保工、３……粘着剤、４……養
生材、５……接着剤、６……コンクリート、７……結合
層、８……養生層、９……突起。1 to 3 are sectional views showing an embodiment of a concrete curing method according to the present invention, and FIGS. 4 to 7 are sectional views showing a concrete curing method according to another embodiment of the present invention. is there. 1 ... weir board, 2 ... support, 3 ... adhesive, 4 ... curing material, 5 ... adhesive, 6 ... concrete, 7 ... bonding layer, 8 ... curing layer, 9 ... Protrusion.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 馬場 明生 茨城県筑波郡大穂町立原１番地 建設省建 築研究所内 (72)発明者 池田 武穂 東京都千代田区富士見２丁目10番26号 前 田建設工業株式会社内 (72)発明者 平松 雄二 神奈川県横浜市戸塚区下倉田町296 日本 油脂株式会社戸塚工場内 (72)発明者 笹原 厚 東京都港区北青山２丁目５番８号 株式会 社間組内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Akio Baba, Akio Baba 1 Tachihara, Oho-cho, Tsukuba-gun, Ibaraki Prefectural Institute of Construction Research (72) Inventor Takeho Ikeda 2-10-26 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industry Co., Ltd. (72) Inventor Yuji Hiramatsu 296 Shimokurata-cho, Totsuka-ku, Yokohama-shi, Kanagawa Inside the Totsuka Plant of NOF Corporation (72) Inventor Atsushi Sasahara 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Stock Company Inside the group
Claims (2)
着力よりもコンクリートへの付着力の方が大きく、かつ
コンクリートに対して養生効果のある材料を前もって取
り付け、コンクリート打設後上記材料を上記コンクリー
ト表面に付着残留させ、このコンクリート表面に養生層
を形成することを特徴とするコンクリートの養生方法。1. A material having a larger adhesive force to concrete than that to a weir and having a curing effect on concrete is attached to the weir board in advance, and the material is placed after the concrete is placed. A method for curing concrete, characterized in that a curing layer is formed on the surface of the concrete.
か金属材料のシートまたは板体であることを特徴とする
特許請求の範囲第１項記載のコンクリートの養生方法。2. A method for curing concrete according to claim 1, wherein the material having a curing effect is a sheet or plate of a plastic material or a metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26834787A JPH07103684B2 (en) | 1987-10-26 | 1987-10-26 | Concrete curing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26834787A JPH07103684B2 (en) | 1987-10-26 | 1987-10-26 | Concrete curing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01111961A JPH01111961A (en) | 1989-04-28 |
| JPH07103684B2 true JPH07103684B2 (en) | 1995-11-08 |
Family
ID=17457274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26834787A Expired - Lifetime JPH07103684B2 (en) | 1987-10-26 | 1987-10-26 | Concrete curing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07103684B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016196730A (en) * | 2015-04-02 | 2016-11-24 | スリーエム イノベイティブ プロパティズ カンパニー | Method for producing concrete structure, method for inhibiting neutralization of concrete, and adhesive sheet |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05149001A (en) * | 1991-03-26 | 1993-06-15 | Taisei Corp | Concrete curing method using composite formwork |
| JP2921357B2 (en) * | 1993-10-04 | 1999-07-19 | 株式会社大林組 | Concrete curing sheet |
| JP5973270B2 (en) * | 2012-07-17 | 2016-08-23 | 鹿島建設株式会社 | Concrete curing method |
| JP5740501B1 (en) * | 2014-03-05 | 2015-06-24 | 鹿島建設株式会社 | Method for producing concrete structure and curing sheet for concrete structure |
| JP6406611B2 (en) * | 2014-05-14 | 2018-10-17 | 株式会社大林組 | Concrete curing method |
| JP5921626B2 (en) * | 2014-09-18 | 2016-05-24 | 鹿島建設株式会社 | Multi-layer mold for casting concrete and method for producing concrete structure using the multi-layer mold |
| JP5945579B2 (en) * | 2014-10-16 | 2016-07-05 | 鹿島建設株式会社 | Method for manufacturing concrete structure |
| JP5912203B1 (en) * | 2015-07-10 | 2016-04-27 | 積水成型工業株式会社 | Curing sheet for concrete structure and method for producing concrete structure using the same |
| JP5877271B1 (en) * | 2015-12-07 | 2016-03-02 | 鹿島建設株式会社 | Method for manufacturing concrete structure |
| JP2018123675A (en) * | 2018-04-06 | 2018-08-09 | 株式会社大林組 | Concrete curing method |
| JP6993764B1 (en) * | 2020-11-20 | 2022-01-14 | 株式会社本久 | How to build a sabo facility |
-
1987
- 1987-10-26 JP JP26834787A patent/JPH07103684B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016196730A (en) * | 2015-04-02 | 2016-11-24 | スリーエム イノベイティブ プロパティズ カンパニー | Method for producing concrete structure, method for inhibiting neutralization of concrete, and adhesive sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01111961A (en) | 1989-04-28 |
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| EXPY | Cancellation because of completion of term |