JPS63201263A - Construction method for curing concrete - Google Patents
Construction method for curing concreteInfo
- Publication number
- JPS63201263A JPS63201263A JP3410087A JP3410087A JPS63201263A JP S63201263 A JPS63201263 A JP S63201263A JP 3410087 A JP3410087 A JP 3410087A JP 3410087 A JP3410087 A JP 3410087A JP S63201263 A JPS63201263 A JP S63201263A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- curing
- foam
- construction method
- curing concrete
- 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
- 238000010276 construction Methods 0.000 title description 5
- 238000001723 curing Methods 0.000 claims description 20
- 239000006260 foam Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009415 formwork Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 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】
〔産業上の利用分野〕
本発明は、寒中においてコンクリート施工をする場合低
温のため凍結もしくは硬化不足により所定強度が得られ
ない場合施工物を泡断熱層で被覆し、断熱硬化により寒
中におけるコンクリート構造物（コンクリート製品も同
様である）の施工を可能にするコンクリートの養生工法
に係るものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method for covering concrete with a foam insulation layer when concrete is constructed in cold weather, and when a specified strength cannot be obtained due to freezing or insufficient hardening due to the low temperature. This relates to a concrete curing method that enables construction of concrete structures (the same applies to concrete products) in cold weather through adiabatic hardening.
従来、冬期間寒中においてコンクリート構造物を養生す
る場合、仮囲いやその中で電熱、バーナー、給湯等によ
る給熱養生を行う工法や簡単なものではむしろ、断熱マ
ットで表面を覆っていたが、仮囲いやマットで覆う場合
その継ぎ目が離れ外気が流入して保温効果が低下したり
、また型枠の間に発泡ポリエチレン板をサンドイッチに
した断熱型枠も試作されているが価格も高くまだ実用段
階に至っていない。Conventionally, when curing a concrete structure during the winter, the surface was covered with an insulating mat rather than using a temporary enclosure or a simple method of curing heat supply using electric heating, burners, hot water, etc. When covering with temporary fences or mats, the joints may separate and outside air may flow in, reducing the heat retention effect.Also, prototype insulation formwork has been produced with foamed polyethylene plates sandwiched between the formwork, but it is expensive and is not yet practical. It has not reached the stage yet.
本発明は、従来からの仮囲いや給熱養生にかわり断熱効
果の高い泡被覆によって施工が簡単で価格も安いコンク
リートの養生工法で、寒中でのコンクリート養生を可能
にするものであり、また養生に使用した泡はスチームク
リーナーによって容易に溶解し洗い流すことが出来る秀
れたコンクリートの養生工法を提供することが技術的課
題である。The present invention is a concrete curing method that uses foam coating with high heat insulation effect in place of the conventional temporary enclosure and heat supply curing, which is easy to construct and inexpensive, and enables concrete curing in cold weather. It is a technical challenge to provide an excellent concrete curing method in which the foam used in concrete can be easily dissolved and washed away with a steam cleaner.
冬期及び寒中において、コンクリート１の表面を泡断熱
層２で被覆してコンクリートの養生を行う。In winter and cold weather, the surface of the concrete 1 is covered with a foam heat insulating layer 2 to cure the concrete.
型枠３の中にコンクリート１を打設して構造物や製品を
作り、この型枠３の外側に泡を塗布して泡断熱層２を形
成する。（４は囲枠である。）この泡は特願昭５９−７
５５７９号の製造法で製造したゼラチンを主成分とする
泡を使用し、その製造には特願昭６１−５７７０７号の
泡の製造装置にて泡を製造すると良い。A structure or product is made by pouring concrete 1 into a formwork 3, and foam is applied to the outside of the formwork 3 to form a foam heat insulating layer 2. (4 is the surrounding frame.) This bubble is a patent application made in 1983-7.
It is preferable to use foam whose main component is gelatin produced by the production method of No. 5579, and to produce the foam using the foam production apparatus of Japanese Patent Application No. 57707/1983.
今回−１Ｏ℃の底温室を使用し泡によるコンクリート養
生の実験を行ったものでその結果を記すると３０ｃｘｘ
３０ｃｘｘ３０ｃｍ容積が２７００ ａｘ”のコンク
リートブロック２個を使用し一方は泡による養生を行い
、他方はそのまま養生をせず、コンクリートブロックを
放置した場合の結果を第３図に示す測定表でまとめてみ
ると、この測定表かられかるように一方の養生物はセメ
ントの水和反応が進行し初期養生が充分達成されている
状態にあるが、他方の非養生物は急激に温度低下しセメ
ントの水和反応が中止状態で初期凍結の状態であり、初
期養生効果の優劣が歴然としておる。This time we conducted an experiment on concrete curing using foam using a bottom greenhouse at -10℃, and the results are 30cxx
The measurement table shown in Figure 3 summarizes the results of using two concrete blocks of 30cxx x 30cm and a volume of 2700ax, one of which was cured with foam and the other of which was left uncured without curing. As can be seen from this measurement table, one of the curing organisms is in a state where the cement hydration reaction is progressing and the initial curing has been sufficiently achieved, but the other non-curing organism is in a state where the temperature rapidly decreases and the cement water is insufficient. The curing reaction is in a state of suspension and initial freezing, and the superiority or inferiority of the initial curing effect is clear.
また強度試験においても養生物は３５８ ｋｇ／ｃｒｘ
”であり、非養生物は１８０ ｋｇ７ｃｍ″という結果
が観測された。Also, in the strength test, the curing agent weighed 358 kg/crx.
The result was ``180 kg 7 cm'' for non-nursing organisms.
本発明は、上述の様に、コンクリートの表面を泡断熱層
で被覆したからコンクリートが硬化する時に発する水和
熱を外部に逃がさないようにしたためセメントの水和反
応が進行して初期養生が充分達成される。As mentioned above, the present invention covers the surface of concrete with a foam insulation layer so that the heat of hydration generated when concrete hardens does not escape to the outside, so that the hydration reaction of cement progresses and initial curing is sufficient. achieved.
従って現在冬期及び寒冷地におけるコンクリート施工が
初期養生の困難さからその施工が大巾に制約されている
が、本発明のように現地において簡単に初期養生が可能
となればコンクリート構造物の通年施工化が出来、土木
業者においてはそのメリットは大きなものとなる。Therefore, concrete construction in winter and in cold regions is currently severely restricted due to the difficulty of initial curing, but if initial curing can be easily done on site as in the present invention, it will be possible to construct concrete structures year-round. This is a huge advantage for civil engineering contractors.
この泡断熱層の形成も泡を吹き付けるだけで簡単にして
、而かもコンクリート表面に均一に吹き付けることも出
来、それだけ施工能率も向上する等秀れた実用上の効果
を有するものである。Formation of this foam heat insulating layer can be made simply by spraying foam, and it can also be sprayed uniformly onto the concrete surface, which has excellent practical effects such as improving construction efficiency.
第１図は本工法の一部を切欠ける斜面図、第２図はその
正断面図、第３図は測定表である。
１・・コンクリート、２・・泡断熱層。
昭和６２年２月１７日Fig. 1 is a partially cutaway slope view of this construction method, Fig. 2 is a front cross-sectional view thereof, and Fig. 3 is a measurement table. 1. Concrete, 2. Foam insulation layer. February 17, 1986
Claims (1)
被覆してコンクリートの養生を行うことを特徴とするコ
ンクリートの養生工法。A concrete curing method characterized by curing concrete by covering the surface of the concrete with a foam insulation layer during the winter and cold weather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3410087A JPS63201263A (en) | 1987-02-17 | 1987-02-17 | Construction method for curing concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3410087A JPS63201263A (en) | 1987-02-17 | 1987-02-17 | Construction method for curing concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63201263A true JPS63201263A (en) | 1988-08-19 |
Family
ID=12404854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3410087A Pending JPS63201263A (en) | 1987-02-17 | 1987-02-17 | Construction method for curing concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63201263A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63308157A (en) * | 1987-06-08 | 1988-12-15 | 戸田建設株式会社 | Method for ageing concrete by foam |
| JP2002047077A (en) * | 2000-08-01 | 2002-02-12 | Ohbayashi Corp | Curing method of concrete |
| JP2002047076A (en) * | 2000-08-01 | 2002-02-12 | Ohbayashi Corp | Curing method of concrete |
-
1987
- 1987-02-17 JP JP3410087A patent/JPS63201263A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63308157A (en) * | 1987-06-08 | 1988-12-15 | 戸田建設株式会社 | Method for ageing concrete by foam |
| JP2002047077A (en) * | 2000-08-01 | 2002-02-12 | Ohbayashi Corp | Curing method of concrete |
| JP2002047076A (en) * | 2000-08-01 | 2002-02-12 | Ohbayashi Corp | Curing method of concrete |
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