JPH09110555A - Curing and drying of building material - Google Patents
Curing and drying of building materialInfo
- Publication number
- JPH09110555A JPH09110555A JP27105695A JP27105695A JPH09110555A JP H09110555 A JPH09110555 A JP H09110555A JP 27105695 A JP27105695 A JP 27105695A JP 27105695 A JP27105695 A JP 27105695A JP H09110555 A JPH09110555 A JP H09110555A
- Authority
- JP
- Japan
- Prior art keywords
- building material
- autoclave
- curing
- drying
- dried
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は建材の養生・乾燥方
法に係り、特に、建材をオートクレーブ養生した後、容
易かつ効率的に乾燥する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for curing and drying a building material, and more particularly to a method for easily and efficiently drying a building material after autoclave curing.
【０００２】[0002]
【従来の技術】石膏系建材やセメント系建材は、プレス
成形、抄造、押出成形等により成形された成形体を養生
硬化させた後、乾燥して製造される。従来、この養生方
法としては、強度発現性や生産効率の面からオートクレ
ーブ養生が主に採用されている。養生終了後の建材を乾
燥するに当っては、オートクレーブから養生後の建材を
取り出し、乾燥機に入れて１００〜１５０℃で加熱乾燥
する方法が採用されている。2. Description of the Related Art Gypsum-based building materials and cement-based building materials are manufactured by curing a molded body molded by press molding, papermaking, extrusion molding or the like and then drying it. Conventionally, autoclave curing has been mainly used as the curing method from the viewpoint of strength development and production efficiency. In drying the building material after completion of curing, a method of taking out the building material after curing from the autoclave, placing it in a dryer and heating and drying at 100 to 150 ° C. is adopted.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の建材の養生
・乾燥方法では、 建材をオートクレーブから取り出して乾燥機に移動
して乾燥を行うため、手間がかかり、作業効率が悪い。 乾燥機の設置が必須であり、設備コスト、装置設置
面積等の面で工業的に不利である。 といった問題があった。In the above conventional curing / drying method for building materials, the building materials are taken out from the autoclave and transferred to a dryer for drying, which is troublesome and inefficient in work. It is essential to install a dryer, which is industrially disadvantageous in terms of equipment cost, equipment installation area, and the like. There was such a problem.
【０００４】本発明は上記従来の問題点を解決し、建材
の養生・乾燥に当り、オートクレーブ養生終了後の建材
を乾燥機を用いることなく容易かつ効率的に乾燥する方
法を提供することを目的とする。An object of the present invention is to solve the above-mentioned conventional problems and to provide a method for curing and drying building materials, by which the building materials after completion of autoclave curing can be easily and efficiently dried without using a dryer. And
【０００５】[0005]
【課題を解決するための手段】本発明の建材の養生・乾
燥方法は、建材をオートクレーブで養生した後、該オー
トクレーブ内を真空引きすることにより該建材を乾燥す
ることを特徴とする。The method for curing and drying a building material according to the present invention is characterized by curing the building material in an autoclave and then vacuuming the interior of the autoclave to dry the building material.
【０００６】本発明では、養生終了後の建材を、オート
クレーブ内を真空引きすることにより、そのままオート
クレーブ内で乾燥するため、建材の移動の手間が省ける
と共に、乾燥機の設置が不要となる。In the present invention, the building material after curing is dried in the autoclave as it is by vacuuming the inside of the autoclave, so that the labor of moving the building material can be saved and the installation of the dryer is not necessary.
【０００７】[0007]
【発明の実施の形態】以下、図面を参照して本発明を詳
細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.
【０００８】図１は、本発明の建材の養生・乾燥方法の
一実施例方法を示す模式的な断面図である。FIG. 1 is a schematic cross-sectional view showing an example of a method for curing and drying a building material according to the present invention.
【０００９】本発明においては、図１に示す如く、オー
トクレーブ１内に建材２を配置して常法に従って養生を
行い、養生終了後、建材２をオートクレーブ１から取り
出すことなくそのまま乾燥工程に移行する。In the present invention, as shown in FIG. 1, the building material 2 is placed in the autoclave 1 and cured according to a conventional method, and after the curing is completed, the building material 2 is directly transferred to the drying step without being taken out from the autoclave 1. .
【００１０】即ち、本実施例の方法では、養生終了後、
まず、バルブＶ1 を開いてオートクレーブ１内の蒸気を
抜き、その後、バルブＶ1 を閉、バルブＶ2 を開として
真空ポンプ３でオートクレーブ１内を真空引きする。That is, according to the method of this embodiment, after completion of the curing,
First, the valve V 1 is opened to remove the steam in the autoclave 1, and then the valve V 1 is closed and the valve V 2 is opened to evacuate the autoclave 1 by the vacuum pump 3.
【００１１】これにより、養生後の建材２に付着してい
る水分が蒸発するため、建材２を乾燥することができ
る。As a result, the moisture adhering to the building material 2 after curing evaporates, so that the building material 2 can be dried.
【００１２】なお、本発明において、オートクレーブ養
生条件は、建材の大きさや材質によっても異なるが、一
般に、中空押出成形で得られる長さ２〜５ｍ，幅３０〜
１００ｃｍで厚さ３０〜１００ｍｍの建材であれば、オ
ートクレーブ養生は、 セメント系建材：１５０〜１８０℃で１．５〜５時間 石膏系建材 ：１１０〜１５０℃で１．５〜５時間 で実施される。In the present invention, the autoclave curing conditions vary depending on the size and material of the building material, but in general, the length is 2 to 5 m and the width is 30 to 30 obtained by hollow extrusion molding.
If it is a building material with a thickness of 100 cm and a thickness of 30 to 100 mm, the autoclave curing is carried out at a cement building material of 150 to 180 ° C. for 1.5 to 5 hours and a gypsum building material of 110 to 150 ° C. for 1.5 to 5 hours. It
【００１３】オートクレーブ養生後の蒸気抜きは、オー
トクレーブ内が大気圧になるまで行えば良く、その際、
オートクレーブ内は１００℃程度に降温する。Vapor removal after curing the autoclave may be carried out until the pressure inside the autoclave becomes atmospheric pressure.
The temperature inside the autoclave is lowered to about 100 ° C.
【００１４】また、真空引きは、オートクレーブ内が１
２０ｍｍＨｇ以下の真空雰囲気となるように行うのが好
ましい。このとき真空乾燥時のオートクレーブ内の温度
は、１０〜３０℃程度であることが好ましい。Further, the inside of the autoclave is evacuated to 1
It is preferable to perform it in a vacuum atmosphere of 20 mmHg or less. At this time, the temperature inside the autoclave during vacuum drying is preferably about 10 to 30 ° C.
【００１５】このような真空乾燥を行う時間は、建材の
寸法、形状等によっても異なるが、通常の場合、１〜５
時間で十分に乾燥することができる。The time for performing such vacuum drying varies depending on the size, shape, etc. of the building material, but is usually 1-5.
Can dry well in time.
【００１６】[0016]
【実施例】以下に実施例及び比較例を挙げて本発明をよ
り具体的に説明する。The present invention will be described more specifically below with reference to examples and comparative examples.
【００１７】実施例１ 下記配合の原料をプレス成形し、図１に示すオートクレ
ーブ１内で１２０℃にて３時間養生した。Example 1 A raw material having the following composition was press-molded and cured in an autoclave 1 shown in FIG. 1 at 120 ° C. for 3 hours.
【００１８】原料配合（重量部） 二水石膏：７０ スラグ：３０ パルプ：５ 水：１０ その後、バルブＶ1 を開いて蒸気を抜き、１００℃，大
気圧とした後、バルブＶ1 を閉，バルブＶ2 を開とし
て、真空ポンプ３によりオートクレーブ１内を２０℃，
１００ｍｍＨｇの真空条件とし、３時間真空乾燥して表
面の水分を蒸発させた。Mixing of raw materials (parts by weight) Gypsum dihydrate: 70 Slag: 30 Pulp: 5 Water: 10 After that, the valve V 1 was opened to remove steam, and after the pressure was set to 100 ° C. and atmospheric pressure, the valve V 1 was closed, The valve V 2 is opened, and the inside of the autoclave 1 is kept at 20 ° C. by the vacuum pump 3.
A vacuum condition of 100 mmHg was applied, and vacuum drying was performed for 3 hours to evaporate water on the surface.
【００１９】乾燥終了後の建材の含水率を表１に示す。The water content of the building material after completion of drying is shown in Table 1.
【００２０】実施例２ 下記配合の原料を押出成形し、図１に示すオートクレー
ブ１内で１８０℃にて２時間養生した。Example 2 A raw material having the following composition was extruded and cured in an autoclave 1 shown in FIG. 1 at 180 ° C. for 2 hours.
【００２１】原料配合（重量部） セメント：５０ 砂：２６ パルプ：４．０ メチルセルロース：１．０ タルク：２２ 水：２２ その後、バルブＶ1 を開いて蒸気を抜き、１００℃，大
気圧とした後、バルブＶ1 を閉，バルブＶ2 を開とし
て、真空ポンプ３によりオートクレーブ１内を３０℃，
８０ｍｍＨｇの真空条件とし、３時間真空乾燥して表面
の水分を蒸発させた。Mixing of raw materials (parts by weight) Cement: 50 Sand: 26 Pulp: 4.0 Methylcellulose: 1.0 Talc: 22 Water: 22 After that, valve V 1 was opened to remove steam, and the temperature was set to 100 ° C. and atmospheric pressure. Then, the valve V 1 is closed and the valve V 2 is opened, and the inside of the autoclave 1 is heated to 30 ° C. by the vacuum pump 3.
A vacuum condition of 80 mmHg was applied, and vacuum drying was performed for 3 hours to evaporate water on the surface.
【００２２】乾燥終了後の建材の含水率を表１に示す。Table 1 shows the water content of the building material after completion of drying.
【００２３】比較例１ 実施例１において、オートクレーブ養生後、そのまま真
空乾燥を行わずに、建材をオートクレーブから取り出
し、電気式の通風乾燥機により６０℃で６時間乾燥した
こと以外は同様に行った。Comparative Example 1 The same procedure as in Example 1 was carried out except that after curing the autoclave, the building material was taken out of the autoclave and dried at 60 ° C. for 6 hours by an electric draft dryer without vacuum drying. .
【００２４】乾燥終了後の建材の含水率を表１に示す。The water content of the building material after completion of drying is shown in Table 1.
【００２５】比較例２ 実施例２において、オートクレーブ養生後、そのまま真
空乾燥を行わずに、建材をオートクレーブから取り出
し、電気式の通風乾燥機により６０℃で６時間乾燥した
こと以外は同様に行った。Comparative Example 2 The same procedure as in Example 2 was carried out except that after curing the autoclave, the building material was taken out of the autoclave without being vacuum dried and dried at 60 ° C. for 6 hours by an electric draft dryer. .
【００２６】乾燥終了後の建材の含水率を表１に示す。Table 1 shows the water content of the building material after completion of drying.
【００２７】[0027]
【表１】 [Table 1]
【００２８】表１より、本発明によれば、オートクレー
ブ養生後、オートクレーブ内でそのまま真空乾燥するこ
とにより、オートクレーブより建材を取り出すことな
く、従来の加熱乾燥による場合よりも短時間で乾燥を行
えることが明らかである。From Table 1, according to the present invention, after curing the autoclave, by performing vacuum drying in the autoclave as it is, it is possible to perform the drying in a shorter time than the conventional heat drying without taking out the building material from the autoclave. Is clear.
【００２９】[0029]
【発明の効果】以上詳述した通り、本発明の建材の養生
・乾燥方法によれば、オートクレーブ養生終了後、建材
をオートクレーブから取り出すことなく乾燥するため、
建材移動の手間が省け、作業量が軽減される。しかも、
別途乾燥機を設ける必要がないことから、設備コストが
低廉化されると共に、設備の小型化、装置設置面積の縮
小が図れる。このため、建材の養生・乾燥を容易かつ効
率的に、安価に行うことが可能となる。As described in detail above, according to the method for curing and drying a building material of the present invention, after the autoclave curing is completed, the building material is dried without being taken out from the autoclave.
The time and effort required to move building materials can be saved, and the amount of work can be reduced. Moreover,
Since it is not necessary to provide a separate dryer, the facility cost can be reduced, the facility can be downsized, and the device installation area can be reduced. Therefore, the building material can be cured and dried easily, efficiently, and inexpensively.
【図１】本発明の建材の養生・乾燥方法の一実施例方法
を示す模式的な断面図である。FIG. 1 is a schematic cross-sectional view showing a method of an example of a method for curing and drying a building material according to the present invention.
１ オートクレーブ ２ 建材 ３ 真空ポンプ Ｖ1 ，Ｖ2 バルブ1 Autoclave 2 Building material 3 Vacuum pump V 1 , V 2 valve
Claims (1)
オートクレーブ内を真空引きすることにより該建材を乾
燥することを特徴とする建材の養生・乾燥方法。1. A method of curing and drying a building material, which comprises curing the building material in an autoclave and then drying the building material by evacuation of the interior of the autoclave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27105695A JPH09110555A (en) | 1995-10-19 | 1995-10-19 | Curing and drying of building material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27105695A JPH09110555A (en) | 1995-10-19 | 1995-10-19 | Curing and drying of building material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09110555A true JPH09110555A (en) | 1997-04-28 |
Family
ID=17494793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27105695A Withdrawn JPH09110555A (en) | 1995-10-19 | 1995-10-19 | Curing and drying of building material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09110555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002273720A (en) * | 2001-03-16 | 2002-09-25 | Nozawa Corp | Method and apparatus for cooling extrusion molded cement board |
| JP2005262728A (en) * | 2004-03-19 | 2005-09-29 | Misawa Homes Co Ltd | Concrete member and manufacturing apparatus therefor |
-
1995
- 1995-10-19 JP JP27105695A patent/JPH09110555A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002273720A (en) * | 2001-03-16 | 2002-09-25 | Nozawa Corp | Method and apparatus for cooling extrusion molded cement board |
| JP4583640B2 (en) * | 2001-03-16 | 2010-11-17 | 株式会社ノザワ | Method and apparatus for cooling extruded cement board |
| JP2005262728A (en) * | 2004-03-19 | 2005-09-29 | Misawa Homes Co Ltd | Concrete member and manufacturing apparatus therefor |
| JP4533647B2 (en) * | 2004-03-19 | 2010-09-01 | ミサワホーム株式会社 | Concrete member and manufacturing apparatus thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030107 |