JP2002086437A - Apparatus for curing concrete - Google Patents
Apparatus for curing concreteInfo
- Publication number
- JP2002086437A JP2002086437A JP2000284433A JP2000284433A JP2002086437A JP 2002086437 A JP2002086437 A JP 2002086437A JP 2000284433 A JP2000284433 A JP 2000284433A JP 2000284433 A JP2000284433 A JP 2000284433A JP 2002086437 A JP2002086437 A JP 2002086437A
- Authority
- JP
- Japan
- Prior art keywords
- main body
- steam
- outside air
- sirocco fan
- 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.)
- Granted
Links
Landscapes
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は一般に、コンクリー
ト養生装置に関する。より詳細には、本発明は、養生終
了時に養生装置内の温度を外気温と略等しい温度まで効
率的に下降させることができるコンクリート養生装置に
関する。FIELD OF THE INVENTION The present invention relates generally to a concrete curing device. More specifically, the present invention relates to a concrete curing device that can efficiently lower the temperature inside the curing device to a temperature substantially equal to the outside air temperature at the end of curing.
【０００２】[0002]
【従来の技術】ヒューム管、杭、ボックスカルバート、
パネル等のコンクリート製品は、その製造に際して、所
定の型枠にコンクリートを投入した後、硬化作用を促進
させ、乾燥によるクラックの発生を防止するため、コン
クリート養生装置内に収容されて養生される。コンクリ
ートの養生は一般的に、コンクリート養生装置内におい
て、まず所定の昇温角度で温度を上昇させた後、一定温
度を所定時間保持し、その後、所定の降温角度で温度を
下降させることによって、行われる。2. Description of the Related Art Fume pipes, piles, box culverts,
In the manufacture of concrete products such as panels, concrete is put into a predetermined formwork, and is then accommodated and cured in a concrete curing device in order to promote hardening action and prevent cracks due to drying. Concrete curing is generally performed in a concrete curing device by first raising the temperature at a predetermined temperature rising angle, maintaining a constant temperature for a predetermined time, and then lowering the temperature at a predetermined temperature lowering angle. Done.
【０００３】近年、コンクリート養生装置は、燃料費の
軽減を図るため、断熱性能が著しく向上しており、装置
内の温度を下降させるのが容易ではない。In recent years, a concrete curing device has remarkably improved heat insulation performance in order to reduce fuel cost, and it is not easy to lower the temperature in the device.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、装置内
の温度が十分に下降せず、外気温との温度差が大きい状
態で、コンクリート製品を養生装置から搬出しようとす
ると、コンクリート製品にヘアクラック（微細なひび割
れ）が発生するという不都合がある。However, if the temperature of the inside of the apparatus is not sufficiently lowered and the temperature difference from the outside air temperature is large and the concrete product is to be carried out of the curing apparatus, the concrete product has a hair crack. There is an inconvenience that fine cracks occur.
【０００５】一方、養生装置の床面に散水することによ
って、養生装置内の温度を下降させようとする試みがな
されている。しかしながら、散水すると、作業コストが
かかるうえ、床面がびしょびしょになる、型枠が湿気を
含む、水滴が落ちる等の弊害が生ずる。特に、寒冷地に
おいては、凍結被害が発生するので、このような便法は
採用されていない。On the other hand, attempts have been made to lower the temperature inside the curing device by spraying water on the floor surface of the curing device. However, when water is sprinkled, work costs are increased, and the floor surface is drenched, the formwork contains moisture, and water drops are dropped. In particular, in a cold region, freezing damage occurs, so such a method is not employed.
【０００６】このような状況下において、養生終了時に
養生装置内の温度を外気温と略等しい温度まで効率的に
下降させることができる装置に対する強い要請がある。
したがって、本発明は、養生終了時に装置外部と略等し
い温度環境を形成することができるコンクリート養生装
置を提供することを目的としている。[0006] Under such circumstances, there is a strong demand for a device capable of efficiently lowering the temperature inside the curing device to a temperature substantially equal to the outside air temperature at the end of curing.
Accordingly, an object of the present invention is to provide a concrete curing device capable of forming a temperature environment substantially equal to the outside of the device at the end of curing.
【０００７】[0007]
【課題を解決するための手段】本願請求項１に記載のコ
ンクリート養生装置は、養生しようとするコンクリート
製品を収容する本体と、本体の内部の下部分に配置さ
れ、本体内に蒸気を供給する蒸気配管と、本体の上部分
に配置され、本体内の蒸気を排出する蒸気排出用配管と
を備え、蒸気排出用配管には、電磁弁が配置されてお
り、本体の内部の下部分に配置され、本体内に外気を導
入する外気導入用配管を備え、シロッコファンによって
外気導入用配管を介して本体内に外気が導入されるよう
になっており、シロッコファンが作動するときは、前記
電磁弁が開放され、シロッコファンが作動しないとき
は、前記電磁弁が閉鎖されるように構成されていること
を特徴とするものである。The concrete curing apparatus according to the present invention is arranged at a lower portion of a main body for accommodating a concrete product to be cured, and supplies steam into the main body. A steam pipe and a steam discharge pipe arranged at an upper portion of the main body for discharging steam in the main body are provided.The solenoid valve is arranged at the steam discharge pipe and is arranged at a lower portion inside the main body. An outside air introduction pipe for introducing outside air into the main body is provided, and the outside air is introduced into the main body through the outside air introduction pipe by a sirocco fan. When the valve is opened and the sirocco fan does not operate, the electromagnetic valve is configured to be closed.
【０００８】本願請求項２に記載のコンクリート養生装
置は、前記請求項１の装置において、外気導入用配管
が、本体の側壁に沿って配置されており、所定間隔を隔
てて複数の外気排出孔が設けられていることを特徴とす
るものである。The concrete curing device according to a second aspect of the present invention is the concrete curing device according to the first aspect, wherein the outside air introduction pipe is arranged along a side wall of the main body, and a plurality of outside air discharge holes are provided at predetermined intervals. Is provided.
【０００９】本願請求項３に記載のコンクリート養生装
置は、前記請求項１又は２の装置において、本体内を
１．５時間〜２．５時間で換気するように、シロッココ
ァンの作動と作動停止が制御されることを特徴とするも
のである。The concrete curing device according to claim 3 of the present invention is the concrete curing device according to claim 1 or 2, wherein the sirocco cone is operated and stopped so that the inside of the main body is ventilated in 1.5 to 2.5 hours. It is characterized by being controlled.
【００１０】本願請求項４に記載のコンクリート養生装
置は、前記請求項１又は２の装置において、本体内を２
時間で換気するように、シロッココァンの作動と作動停
止が制御されることを特徴とするものである。The concrete curing device according to claim 4 of the present invention is the concrete curing device according to claim 1 or 2, wherein
It is characterized in that the operation and deactivation of the sirocco cone are controlled so that ventilation takes place over time.
【００１１】[0011]
【発明の実施の形態】次に図面を参照して、本発明の好
ましい実施の形態に係るコンクリート養生装置について
説明する。図１において全体として参照符号１０で示さ
れる本発明の好ましい実施の形態に係るコンクリート養
生装置は、本体１２を備えている。本体１２は典型的に
は、立方体又は直方体の箱形の形状を有しており、本体
１２の側壁の１つには、コンクリート製品の搬入・搬出
用の扉１４（図１では、一点鎖線で概略的に図示されて
いる）が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a concrete curing device according to a preferred embodiment of the present invention will be described with reference to the drawings. A concrete curing apparatus according to a preferred embodiment of the present invention, which is generally indicated by reference numeral 10 in FIG. The main body 12 typically has a cubic or rectangular parallelepiped box shape, and one of the side walls of the main body 12 has a door 14 for carrying in / out the concrete product (in FIG. (Shown schematically).
【００１２】コンクリート養生装置１０の内部の下部分
には、蒸気配管１６が配置されており、蒸気配管１６
は、配管１８を介して、コンクリート養生装置１０の外
部に配置された減圧弁ユニット２０と連通している。減
圧弁ユニット２０は、蒸気発生源（図示せず）に連結さ
れている。減圧弁ユニット２０により、蒸気発生源から
の蒸気圧力を２kg／cm2G〜０．５kg／cm2G程度に減圧
し、水分が少なく潜熱の大きな良質の蒸気を本体１２に
供給することができる。A steam pipe 16 is disposed at a lower portion inside the concrete curing device 10.
Is connected to a pressure reducing valve unit 20 disposed outside the concrete curing device 10 via a pipe 18. The pressure reducing valve unit 20 is connected to a steam generation source (not shown). By the pressure reducing valve unit 20, the steam pressure from the steam generation source is reduced to about 2 kg / cm 2 G to 0.5 kg / cm 2 G, and high-quality steam having a small amount of water and a large latent heat can be supplied to the main body 12. .
【００１３】蒸気配管１６は好ましくは、図１に示され
るように、本体１２の４つの側壁のうち扉１４が設けら
れている側壁以外の３つの側壁に沿って、平面視「コ」
字形に配置されている。蒸気配管１６には、所定間隔を
隔てて複数の蒸気排出孔１６ａが設けられている。As shown in FIG. 1, the steam pipe 16 preferably extends along three of the four side walls of the main body 12 other than the side wall on which the door 14 is provided.
It is arranged in the shape of a letter. A plurality of steam discharge holes 16a are provided in the steam pipe 16 at predetermined intervals.
【００１４】コンクリート養生装置１０の上部分には、
蒸気排出用配管２２が配置されており、本体１２内の蒸
気を装置外に排出できるようになっている。蒸気排出用
配管２２には、電磁弁２４が設置されている。In the upper part of the concrete curing device 10,
A steam discharge pipe 22 is provided so that steam in the main body 12 can be discharged outside the apparatus. An electromagnetic valve 24 is installed in the steam discharge pipe 22.
【００１５】コンクリート養生装置１０の内部の下部分
には、外気導入用配管２６が配置されている。外気導入
用配管２６は、配管２８を介して、ダクト３０と連通し
ており、ダクト３０の端部は、コンクリート養生装置１
０の外部に延びている。At the lower portion inside the concrete curing device 10, a piping 26 for introducing outside air is arranged. The outside air introduction pipe 26 communicates with a duct 30 via a pipe 28, and the end of the duct 30 is connected to the concrete curing device 1.
0 extends outside.
【００１６】ダクト３０の途中には、シロッコファン３
２が設けられている。シロッコファン３２は、蒸気排出
用配管２２の電磁弁２４と連動しており、シロッコファ
ン３２が作動するときは、電磁弁２４が開放され、シロ
ッコファン３２が作動しないときは、電磁弁２４が閉鎖
されるようになっている。In the middle of the duct 30, a sirocco fan 3
2 are provided. The sirocco fan 32 is linked with the solenoid valve 24 of the steam discharge pipe 22. When the sirocco fan 32 operates, the solenoid valve 24 is opened, and when the sirocco fan 32 does not operate, the solenoid valve 24 is closed. It is supposed to be.
【００１７】外気導入用配管２６は好ましくは、蒸気配
管１６と同様に、図１に示されるように、本体１２の４
つの側壁のうち扉１４が設けられている側壁以外の３つ
の側壁に沿って、平面視「コ」字形に配置されている。
外気導入用配管２６には、所定間隔を隔てて複数の外気
排出孔２６ａが設けられている。The outside air introduction pipe 26 is preferably, like the steam pipe 16, connected to the main body 12 as shown in FIG.
The three side walls other than the side wall on which the door 14 is provided are arranged in a “U” shape in plan view.
The outside air introduction pipe 26 is provided with a plurality of outside air discharge holes 26a at predetermined intervals.
【００１８】次に、以上のように構成されたコンクリー
ト養生装置１０の使用について説明する。まず、養生し
ようとするコンクリート製品をコンクリート養生装置１
０内に搬入する。次いで、減圧弁ユニット２０により２
kg／cm2G〜０．５kg／cm2G程度に減圧した蒸気を、蒸気
配管１６の蒸気排出孔１６ａから、本体１２内に排出す
る。すると、本体１２内の温度は、図２においてＡ〜Ｂ
で示されるように、所定の昇温角度で上昇する（通常
は、２０°Ｃ／時程度が好ましい）。次いで、蒸気の排
出を調整することにより、図２においてＢ〜Ｃに示され
るように、一定の時間、一定の温度を保持する。しかる
後、シロッコファン３２を作動させ、外気排出孔２６ａ
を介して本体１２内に外気を均一に導入する。シロッコ
ファン３２を作動させると、電磁弁２４が開放されるの
で、本体１２内の温度は、図２においてＣ〜Ｄで示され
るように、徐々に下降する。なお、この際、本体１２内
の温度を急激に下降させると、コンクリート製品にヘア
クラックが発生するおそれがあるので、シロッコファン
３２の作動と作動停止（従って、電磁弁２４の開放と閉
鎖）を小刻みに繰り返すことにより、本体１２内の温度
を徐々に低下させる（図２では、ＣＤは直線になってい
るが、実際は、細かな階段状となる）。そして、本体１
２内の温度が外気温と略等しくなったら、養生作業を終
了し、扉１４を開けてコンクリート製品を搬出する。な
お、シロッコファン３２の作動と作動停止は、公知の制
御手段（図示せず）によって行われる。Next, the use of the concrete curing device 10 configured as described above will be described. First, a concrete product to be cured is placed in a concrete curing device 1.
Carry in 0. Next, 2
The kg / cm 2 G~0.5kg / cm 2 under reduced pressure steam to about G, from the vapor discharge hole 16a of the steam pipe 16, is discharged into the body 12. Then, the temperature in the main body 12 is A to B in FIG.
As shown by (2), the temperature rises at a predetermined temperature rise angle (normally, preferably about 20 ° C./hour). Then, by adjusting the discharge of steam, as shown by B to C in FIG. 2, a certain temperature is maintained for a certain time. Thereafter, the sirocco fan 32 is operated, and the outside air discharge hole 26a is opened.
The outside air is uniformly introduced into the main body 12 through the. When the sirocco fan 32 is operated, the electromagnetic valve 24 is opened, so that the temperature in the main body 12 gradually decreases as shown by C to D in FIG. At this time, if the temperature in the main body 12 is rapidly lowered, hair cracks may be generated in the concrete product. The temperature in the main body 12 is gradually reduced by repeating the process in small increments (in FIG. 2, the CD is linear, but in fact, it is a fine step). And the main body 1
When the temperature inside 2 becomes substantially equal to the outside temperature, the curing operation is finished, the door 14 is opened, and the concrete product is carried out. The operation and stop of the sirocco fan 32 are performed by known control means (not shown).
【００１９】本発明者の行った種々の試験によれば、本
体１２内を約１．５時間〜約２．５時間（最も好ましく
は、約２時間）で換気する（即ち、本体１２内の空気を
約１．５時間〜約２．５時間かけて外気と入れ換える）
と、ヘアクラックを発生させずに養生することができる
ことが分かった。According to various tests conducted by the present inventor, the inside of the body 12 is ventilated for about 1.5 hours to about 2.5 hours (most preferably, about 2 hours) (ie, the inside of the (Replace air with outside air for about 1.5 to 2.5 hours)
It was found that the hair could be cured without causing hair cracks.
【００２０】本発明は、以上の発明の実施の形態に限定
されることなく、特許請求の範囲に記載された発明の範
囲内で、種々の変更が可能であり、それらも本発明の範
囲内に包含されるものであることはいうまでもない。The present invention is not limited to the above embodiments of the invention, and various modifications can be made within the scope of the invention described in the claims. It goes without saying that it is included in.
【００２１】[0021]
【発明の効果】上述のように、外気排出孔２６ａから本
体１２内に外気が均一に導入され、しかもシロッコファ
ン３２の作動と作動停止および電磁弁２４の開放と閉鎖
が連動しているので、本体１２内の温度を緩慢に下降さ
せ、外気温と略同じ温度まで下降させることができるの
で、コンクリート製品にヘアクラックが発生するのを防
止することができる。As described above, the outside air is uniformly introduced into the main body 12 from the outside air discharge hole 26a, and the operation and stoppage of the sirocco fan 32 and the opening and closing of the solenoid valve 24 are linked. Since the temperature in the main body 12 can be slowly lowered to approximately the same as the outside air temperature, it is possible to prevent hair cracks from occurring in the concrete product.
【図１】本発明の好ましい実施の形態に係るコンクリー
ト養生装置を示した概略斜視図である。FIG. 1 is a schematic perspective view showing a concrete curing device according to a preferred embodiment of the present invention.
【図２】コンクリート養生装置の本体内における時間と
温度の関係を示したグラフである。FIG. 2 is a graph showing a relationship between time and temperature in the main body of the concrete curing device.
１０ コンクリート養生装置 １２ 本体 １４ 扉 １６ 蒸気配管 ２０ 減圧弁ユニット ２２ 蒸気排出用配管 ２４ 電磁弁 ２６ 外気導入用配管 ３２ シロックファン DESCRIPTION OF SYMBOLS 10 Concrete curing device 12 Main body 14 Door 16 Steam piping 20 Pressure reducing valve unit 22 Steam exhaust piping 24 Solenoid valve 26 Outside air introduction piping 32 Siroc fan
Claims (4)
る蒸気配管と、 本体の上部分に配置され、本体内の蒸気を排出する蒸気
排出用配管とを備え、蒸気排出用配管には、電磁弁が配
置されており、 本体の内部の下部分に配置され、本体内に外気を導入す
る外気導入用配管を備え、シロッコファンによって外気
導入用配管を介して本体内に外気が導入されるようにな
っており、 シロッコファンが作動するときは、前記電磁弁が開放さ
れ、シロッコファンが作動しないときは、前記電磁弁が
閉鎖されるように構成されていることを特徴とする装
置。1. A concrete curing device, comprising: a main body for accommodating a concrete product to be cured; a steam pipe arranged at a lower portion inside the main body to supply steam into the main body; A steam discharge pipe that discharges steam in the main body, and a solenoid valve is disposed in the steam discharge pipe, and is disposed in a lower portion of the inside of the main body to introduce outside air into the main body. An external air introduction pipe is provided, and external air is introduced into the main body through the external air introduction pipe by a sirocco fan. When the sirocco fan operates, the electromagnetic valve is opened and the sirocco fan operates. An apparatus wherein the solenoid valve is configured to be closed when not in operation.
配置されており、所定間隔を隔てて複数の外気排出孔が
設けられていることを特徴とする請求項１に記載の装
置。2. The apparatus according to claim 1, wherein the outside air introduction pipe is disposed along a side wall of the main body, and a plurality of outside air discharge holes are provided at predetermined intervals.
するように、シロッココァンの作動と作動停止が制御さ
れることを特徴とする請求項１又は２に記載の装装。3. The equipment according to claim 1, wherein the operation and the stop of the sirocco corn are controlled so as to ventilate the inside of the body in 1.5 to 2.5 hours.
ッココァンの作動と作動停止が制御されることを特徴と
する請求項１又は２に記載の装装。4. The equipment according to claim 1, wherein the operation and the stop of the sirocco cone are controlled so that the inside of the main body is ventilated in two hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000284433A JP3606796B2 (en) | 2000-09-20 | 2000-09-20 | Concrete curing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000284433A JP3606796B2 (en) | 2000-09-20 | 2000-09-20 | Concrete curing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002086437A true JP2002086437A (en) | 2002-03-26 |
| JP3606796B2 JP3606796B2 (en) | 2005-01-05 |
Family
ID=18768643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000284433A Expired - Lifetime JP3606796B2 (en) | 2000-09-20 | 2000-09-20 | Concrete curing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3606796B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009474A (en) * | 2012-12-30 | 2013-04-03 | 黑龙江省龙建路桥第二工程有限公司 | Precast box girder steam curing equipment and curing method |
| KR101262368B1 (en) | 2004-12-20 | 2013-05-08 | 재단법인 포항산업과학연구원 | Apparatus for simulating steam aging and for testing expansion ratio of slag aggregate |
| CN103101109A (en) * | 2013-02-04 | 2013-05-15 | 深圳泛华工程集团有限公司 | Concrete experiment maintenance equipment and control system thereof |
| CN105133502A (en) * | 2015-09-11 | 2015-12-09 | 中建七局第二建筑有限公司 | Bridge pier stud concrete curing control device |
| JP2016097648A (en) * | 2014-11-26 | 2016-05-30 | 株式会社ボイラエンジニアリング | Concrete secondary product curing control device with post-curing control function for winter |
| CN107916793A (en) * | 2017-12-20 | 2018-04-17 | 宁波二十冶建设有限公司 | A kind of cold weather concrete curing means |
| CN108748637A (en) * | 2018-05-31 | 2018-11-06 | 山东大学 | A kind of steam-cured cabin in underground and its application method |
| CN111300619A (en) * | 2020-03-31 | 2020-06-19 | 中国十七冶集团有限公司 | Automatic temperature control system of prefabricated box girder steam health preserving |
| CN113858406A (en) * | 2021-09-10 | 2021-12-31 | 中铁二十五局集团第一工程有限公司 | Assembled barricade evaporates foster system |
-
2000
- 2000-09-20 JP JP2000284433A patent/JP3606796B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101262368B1 (en) | 2004-12-20 | 2013-05-08 | 재단법인 포항산업과학연구원 | Apparatus for simulating steam aging and for testing expansion ratio of slag aggregate |
| CN103009474A (en) * | 2012-12-30 | 2013-04-03 | 黑龙江省龙建路桥第二工程有限公司 | Precast box girder steam curing equipment and curing method |
| CN103101109A (en) * | 2013-02-04 | 2013-05-15 | 深圳泛华工程集团有限公司 | Concrete experiment maintenance equipment and control system thereof |
| CN103101109B (en) * | 2013-02-04 | 2015-05-06 | 深圳泛华工程集团有限公司 | Concrete experiment maintenance equipment and control system thereof |
| JP2016097648A (en) * | 2014-11-26 | 2016-05-30 | 株式会社ボイラエンジニアリング | Concrete secondary product curing control device with post-curing control function for winter |
| CN105133502A (en) * | 2015-09-11 | 2015-12-09 | 中建七局第二建筑有限公司 | Bridge pier stud concrete curing control device |
| CN107916793A (en) * | 2017-12-20 | 2018-04-17 | 宁波二十冶建设有限公司 | A kind of cold weather concrete curing means |
| CN108748637A (en) * | 2018-05-31 | 2018-11-06 | 山东大学 | A kind of steam-cured cabin in underground and its application method |
| CN108748637B (en) * | 2018-05-31 | 2023-06-06 | 山东大学 | Underground steam curing cabin and application method thereof |
| CN111300619A (en) * | 2020-03-31 | 2020-06-19 | 中国十七冶集团有限公司 | Automatic temperature control system of prefabricated box girder steam health preserving |
| CN113858406A (en) * | 2021-09-10 | 2021-12-31 | 中铁二十五局集团第一工程有限公司 | Assembled barricade evaporates foster system |
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