JPH0369572A - Production of alc - Google Patents
Production of alcInfo
- Publication number
- JPH0369572A JPH0369572A JP20721489A JP20721489A JPH0369572A JP H0369572 A JPH0369572 A JP H0369572A JP 20721489 A JP20721489 A JP 20721489A JP 20721489 A JP20721489 A JP 20721489A JP H0369572 A JPH0369572 A JP H0369572A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- weight
- parts
- slurry
- curing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 239000011381 foam concrete Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 28
- 239000004567 concrete Substances 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 16
- 239000000047 product Substances 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 9
- 239000000292 calcium oxide Substances 0.000 description 8
- 235000012255 calcium oxide Nutrition 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011398 Portland cement Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000010097 foam moulding Methods 0.000 description 3
- 101100388071 Thermococcus sp. (strain GE8) pol gene Proteins 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- MKTRXTLKNXLULX-UHFFFAOYSA-P pentacalcium;dioxido(oxo)silane;hydron;tetrahydrate Chemical compound [H+].[H+].O.O.O.O.[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O MKTRXTLKNXLULX-UHFFFAOYSA-P 0.000 description 2
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical group O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Producing Shaped Articles From Materials (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、水蒸気養生軽量気泡コンクリートの製造方法
の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a method for producing steam-cured lightweight cellular concrete.
（従来の技術）
水蒸気養生軽量気泡コンクリート（以下ＡＬＣと称す）
は、セメント及び生石灰等の石灰質原料粉末と、珪石、
珪砂等の珪酸質原料粉末と水と添加剤等とを加えてスラ
リー状とした後、鋳型に鋳込み、アルミニウム粉末を加
えて発泡させて半可塑化させた半製品をオートクレーブ
に装入して、高温高圧の水蒸気養生処理を施して製造さ
れている。(Conventional technology) Steam-cured lightweight cellular concrete (hereinafter referred to as ALC)
is calcareous raw material powder such as cement and quicklime, silica stone,
After making a slurry by adding siliceous raw material powder such as silica sand, water, and additives, etc., it is cast into a mold, and the semi-plasticized semi-finished product by adding aluminum powder and foaming is charged into an autoclave. Manufactured using high-temperature, high-pressure steam curing treatment.
ＡＬＣの製造原価を低減して欲しいという市場の要求に
応える手段として、オー１−クレープによる養生処理の
処理温度を引き上げる事によって目的とするトバモライ
トの結晶化を促進し、ＡＬＣ製造工程中の養生時間を短
縮する方法が考えられている。As a means of responding to the market demand for reducing the manufacturing cost of ALC, we promoted the crystallization of the target tobermorite by raising the treatment temperature of the curing treatment using O-1-crepe, and the curing time during the ALC manufacturing process was increased. A method is being considered to shorten the time.
（発明が解決しようとする課題）
然し乍ら、オートクレーブによる養生処理の処理温度を
引き上げる為には、従来の設備を改良したり、高機能の
新規高圧オートクレーブを設置しなければならず、又、
養生温度を高く保つ必要がある分だけ製造原価を押し上
げる為、業界では、これらの解決策を早期に具体化する
事が望まれて２−
いた。(Problems to be Solved by the Invention) However, in order to raise the processing temperature of curing treatment using an autoclave, it is necessary to improve conventional equipment or install a new high-performance high-pressure autoclave.
Since the need to maintain high curing temperatures increases manufacturing costs, the industry has been hoping for early implementation of these solutions.
本発明は、上記の課題を解決して、Ａ １． Ｃの効率
的な製造方法を提供する事を目的とする。The present invention solves the above problems and achieves A1. The purpose is to provide an efficient manufacturing method for C.
（課題を解決するための手段）
本発明は、上記の課題を解決して、Ａ Ｌ Ｃの効率的
な製造方法を提供する為、石灰質原料と珪酸質原料と水
とを主原料とする水蒸気養生軽量気泡コンクリートの製
造方法に於いて、オートクレーブ養生処理に先だって、
鋳型に鋳込まれた原料スラリーに対して５０〜９０’Ｃ
にて３〜２４時間に亘る予備（鋳型）蒸気養生を施す方
法を提供するものである。(Means for Solving the Problems) The present invention solves the above problems and provides an efficient manufacturing method for ALC. In the manufacturing method of cured lightweight aerated concrete, prior to autoclave curing treatment,
50-90'C for the raw material slurry cast into the mold
The present invention provides a method for preparatory (mold) steam curing for 3 to 24 hours at a mold.
（作用）
本発明に於いては、オーＩ・クレープ養生処理に先だっ
て、鋳型に鋳込まれた原料スラリーに対して５０〜９０
℃にて３〜２４時間に亘る予備蒸気養生を施す方法を採
用しているが、この場合、鋳型に鋳込まれた原料スラリ
ーに対して５０〜９０℃にて蒸気養生を施す様に規定し
たのは、５０℃未満で蒸気養生したのでは処理時間が極
端に長くなる為であり、９０°Ｃを越えると加熱費用が
嵩んで来る割りには目的とする効果の増進が期待出来な
い為である。(Function) In the present invention, 50 to 90
A method of preliminary steam curing for 3 to 24 hours at ℃ is adopted, but in this case, it is specified that the raw material slurry cast into the mold is subjected to steam curing at 50 to 90 ℃. This is because steam curing at a temperature below 50°C will take an extremely long time, and if the temperature exceeds 90°C, the desired effect cannot be expected to increase despite the increased heating cost. be.
又、オートクレーブ養生処理に先だって、蒸気養生を施
す場合の処理時間を３〜２４時間と規定したのは、蒸気
養生処理時間が３時間未満では、鋳型に鋳込まれた原料
スラリーに対して５０〜９０′Ｃにて予備蒸気養生処理
を施す効果が十分に現われず、蒸気養生処理時間が２４
時間を越えると、予備蒸気養生処理を施す効果の向上度
が停滞して来るからである。In addition, the processing time for steam curing prior to autoclave curing is specified as 3 to 24 hours, because if the steam curing time is less than 3 hours, the raw material slurry cast into the mold will be The effect of pre-steam curing at 90'C was not sufficient, and the steam curing time was 24
This is because, if the time is exceeded, the degree of improvement in the effect of preliminary steam curing treatment will stagnate.
更に、本発明では、オーＩ−クレープ養生処理に先だっ
て、蒸気養生を用いた予備蒸気養生処理を施す事にして
居るが、これは、蒸気が不十分な状態で養生処理を施す
とＡＬＣの製品の表面が選択的に乾燥される事から、Ａ
ＬＣの内外部での均一・な反応が損なわれる事になり、
最終的に、安定した物性を示す製品か入手出来なくなる
為である。Furthermore, in the present invention, a preliminary steam curing treatment using steam curing is performed prior to the O-I-crepe curing treatment, but this means that if the curing treatment is performed with insufficient steam, the ALC product will deteriorate. Since the surface of A is selectively dried,
Uniform reactions inside and outside the LC will be impaired,
This is because, in the end, it becomes impossible to obtain products that exhibit stable physical properties.
尚、本発明で示したオーＩ−クレープ養生処理に先だっ
ての予備蒸気養生処理が、オートクレーブ養生処理時間
を短縮する事を可能にした理由は定かでは無いが、オー
トクレーブ養生処理に先だっての予備蒸気養生処理を施
す事により、石灰質原料として用いるセメン１〜の水和
状況が進行した段階でオートクレーブ養生処理に入る事
が、トハモライ１への生成に対して、有効に作用してい
るものと推定される。Although it is not clear why the preliminary steam curing treatment prior to the O-I-crepe curing treatment shown in the present invention made it possible to shorten the autoclave curing treatment time, the preliminary steam curing treatment prior to the autoclave curing treatment is not clear. It is presumed that the autoclave curing treatment is carried out at a stage when the hydration of cement 1~ used as a calcareous raw material has progressed, which has an effective effect on the formation of Tohamorai 1. .
（実施例）
実施例１
１０重量部の粉末状生石灰と、３５重量部のポルトラン
ドセメントと、５５重量部の珪石粉とを混合してＡＬＣ
原料粉とした後、前記ＡＬＣ原料粉１００重量部に対し
て、６７重量部の水を加えたスラリーを調製し、このス
ラリーを４０℃に加熱して後、０．０７重量部のアルミ
ニウム粉末を加え、縦１５０ｍｍ、横１５０ ｎｙｎ、
高さ４００ ｎｏの鋳型に流し込んで発泡成型した後、
９０℃にて３時間の蒸気養生を行ない、その後、オート
クレーブにて、ゲージ圧１０ｋｇ／ｃ＋Ｊ、処理温度１
８０℃、４時間の水蒸気養生処理を施して得られたＡＬ
Ｃ製品の圧縮強度は４．５ｋｇ／−であった。(Example) Example 1 ALC was performed by mixing 10 parts by weight of powdered quicklime, 35 parts by weight of Portland cement, and 55 parts by weight of silica powder.
After making the raw material powder, a slurry was prepared by adding 67 parts by weight of water to 100 parts by weight of the ALC raw material powder, and after heating this slurry to 40°C, 0.07 parts by weight of aluminum powder was added. In addition, length 150mm, width 150nyn,
After pouring into a mold with a height of 400 mm and foam molding,
Steam curing was performed at 90°C for 3 hours, and then in an autoclave at a gauge pressure of 10kg/c+J and a treatment temperature of 1.
AL obtained by steam curing at 80°C for 4 hours
The compressive strength of product C was 4.5 kg/-.
実施例２
１０重量部の粉末状生石灰と、３５重量部のポルトラン
ドセメントと、５５重量部の珪石粉とを混合してＡＬＣ
原料粉とした後、前記Ａ、 Ｌ Ｃ原料粉１００重量部
に対して、６７重量部の水を加えたスラリーを調製し、
このスラリーを４５°Ｃに加熱して後、０．０７重量部
のアルミニウム粉末を加え、縦１５０ｍｍｎ、横■５０
ｍ、高さ４００ｍｍの鋳型に流し込んで発泡成型した後
、６０’Ｃにて１２時間の蒸気養生を行ない、その後、
オートクレブにて、ゲージ圧１０ｋｇ／、ｆｆｌ、処理
温度］、 ８０°Ｃ１４時間の水蒸気養生処理を施して
得られたＡＬＣ製品の圧縮強度は４．７ｋｇ／−であっ
た。Example 2 ALC was performed by mixing 10 parts by weight of powdered quicklime, 35 parts by weight of Portland cement, and 55 parts by weight of silica powder.
After making the raw material powder, prepare a slurry by adding 67 parts by weight of water to 100 parts by weight of the A, LC raw material powder,
After heating this slurry to 45°C, 0.07 parts by weight of aluminum powder was added and the slurry was heated to 150 mm in length and 50 mm in width.
After pouring into a mold with a height of 400 mm and foaming, it was steam-cured at 60'C for 12 hours, and then
The ALC product obtained by steam curing at 80° C. for 14 hours at a gauge pressure of 10 kg/, ffl, treatment temperature in an autoclave had a compressive strength of 4.7 kg/−.
実施例３
１０重量部の粉末状生石灰と、３５重量部のポルトラン
ドセメン１〜と、５５重量部の珪石粉とを混合してＡＬ
Ｃ原料粉とした後、前記Ａ Ｌ Ｃ原料粉１００重量部
に対して、６７重量部の水を加えたスラリーを調製し、
このスラリーを５０’Ｃに加熱して後、０．０７重量部
のアルミニウム粉末を加え、縦１５０ｎｗｎ、横］−５
０ａｎ、高さ４００ ｎｕｎの鋳型に流し込んで発泡成
型した後、７０”Ｃにて５時間の蒸気養生を行ない、そ
の後、オーＩ−クレブにて、ゲージ圧１０ｋｇ／♂、処
理温度１８０″Ｃ１４時間の水蒸気養生処理を施して得
られたＡＬＣ製品の圧縮強度は４２ｋｇ／ｃｎ（であっ
た。Example 3 Al
After preparing C raw material powder, prepare a slurry by adding 67 parts by weight of water to 100 parts by weight of the ALC raw material powder,
After heating this slurry to 50'C, 0.07 parts by weight of aluminum powder was added, and the length was 150nwn, width]-5
After pouring into a 0an, height 400nun mold and foam molding, steam curing was performed at 70"C for 5 hours, and then in an O-I-Creb at a gauge pressure of 10kg/♂ and a treatment temperature of 180"C for 14 hours. The compressive strength of the ALC product obtained by the steam curing treatment was 42 kg/cn.
実施例４
１０重量部の粉末状生石灰と、３５重量部のポル１〜ラ
ンドセメントと、５５重量部の珪石粉とを混合してＡ
Ｌ Ｃ原料粉とした後、前記ＡＬＣ原料粉］、 Ｏ０重
量部に対して、６７重量部の水を加えたスラリーを調製
し、このスラリーを５０℃に加熱して後、０．０７重量
部のアルミニウム粉末を加え、縦１．５０ ｒｔｒ＋、
横１５０ｍｍ、高さ４００ ｎｕ＋＋の鋳型に流し込ん
で発泡成型した後、８０℃にて］２時間の蒸気養生を行
ない、その後、オートクレーブにて、ゲージ圧１０瞳／
ｄ、処理温度１８０℃、４時間の水蒸気養生処理を施し
て得られたＡＬＣ製品の圧縮強度は４６ｋｇ／ｃｔ＃で
あった。Example 4 10 parts by weight of powdered quicklime, 35 parts by weight of Pol 1~land cement, and 55 parts by weight of silica powder were mixed to produce A.
After preparing the LC raw material powder, prepare a slurry by adding 67 parts by weight of water to 0 parts by weight, and after heating this slurry to 50 ° C., 0.07 parts by weight. Add aluminum powder, vertical 1.50 rtr+,
After pouring into a mold with a width of 150 mm and a height of 400 nu++ and foaming, it was steam-cured for 2 hours at 80°C, and then placed in an autoclave with a gauge pressure of 10 pupil/
d. The compressive strength of the ALC product obtained by steam curing at a treatment temperature of 180° C. for 4 hours was 46 kg/ct#.
実施例５
１０重量部の粉末状生石灰と、３５重量部のポル１〜ラ
ンドセメントと、５５重量部の珪石粉とを混合してＡＬ
Ｃ原料粉とした後、前記Ａ Ｌ Ｃ原料粉１００重量部
に対して、６７重量部の水を加えたスラリーを調製し、
このスラリーを４０℃に加熱して後、０．０７重量部の
アルミニウム粉末を加え、縦１５０ｎＩ１１、横１．５
０ ｎｕｎ、高さ４００ ｎｗｎの鋳型に流し込んで発
泡成型した後、５０℃にて２４時間の蒸気養生を行ない
、その後、オートクレーブにて、ゲージ圧１．０ｋｇ／
ｃＪ、処理温度１８０°Ｃ１４時間の水蒸気養生処理を
施して得られたＡＬＣ製品の圧縮強度は４．２ｋｇ／−
であった。Example 5 Al
After preparing C raw material powder, prepare a slurry by adding 67 parts by weight of water to 100 parts by weight of the ALC raw material powder,
After heating this slurry to 40°C, 0.07 parts by weight of aluminum powder was added to the slurry.
After pouring into a mold with a diameter of 0 nun and a height of 400 nwn and foam-molding, steam curing was performed at 50°C for 24 hours, and then in an autoclave at a gauge pressure of 1.0 kg/
cJ, the compressive strength of the ALC product obtained by applying steam curing treatment for 14 hours at a treatment temperature of 180°C is 4.2kg/-
Met.
比較例として以下の如く予備蒸気養生を実施するも本発
明限定範囲を逸脱した例を示す。As a comparative example, we will show an example in which preliminary steam curing was carried out as described below, but it deviated from the scope of the present invention.
比較例１
］０重量部の粉末状生石灰と、３５重量部のポル１〜ラ
ンドセメントと、５５重量部の珪石粉とを混合してＡＬ
Ｃ原料粉とした後、前記Ａ Ｔ−Ｃ原料粉１００重量部
に対して、６７重量部の水を加えたスラリーを調製し、
このスラリーを４５°Ｃに加熱して後、０．０７重量部
のアルミニウム粉末を加え、縦１５０ｍｍ、横１５０ａ
ｎ、高さ４００１ＩＩ１１の鋳型に流し込んで発泡成型
した後、４５°Ｃにて３０時間の蒸気養生を行ない、そ
の後、オートクレープニテ、ゲージ圧１０ｋｇ／ｃＪ、
処理温度１８０°Ｃ１６時間の水蒸気養生処理を施して
得られたＡＬＣ製品の圧縮強度は３５ｋｇ／ｃｎ＋でし
かなかった。Comparative Example 1 ] 0 parts by weight of powdered quicklime, 35 parts by weight of Pol 1~land cement, and 55 parts by weight of silica powder were mixed to produce AL.
After preparing C raw material powder, prepare a slurry by adding 67 parts by weight of water to 100 parts by weight of the ATC raw material powder,
After heating this slurry to 45°C, 0.07 parts by weight of aluminum powder was added and the slurry was heated to 150 mm in length and 150 mm in width.
After pouring into a mold with a height of 4001II11 and foaming, it was steam-cured at 45°C for 30 hours, and then autoclaved at a gauge pressure of 10kg/cJ.
The compressive strength of the ALC product obtained by steam curing at 180° C. for 16 hours was only 35 kg/cn+.
比較例２
１０重量部の粉末状生石灰と、３５重量部のポルトラン
ドセメントと、５５重量部の珪石粉とを混合してＡＬＣ
原料粉とした後、前記ＡＬＣ原料粉１００重量部に対し
て、６７重量部の水を加えたスラリーを調製し、このス
ラリーを５０’Ｃに加熱して後、０．０７重量部のアル
ミニウム粉末を加え、縦１５０ｍｍ、横１５０ａｎ＋、
高さ４００ ｏｎ＋の鋳型に流し込んで発泡成型した後
、９０°Ｃにて２時間の蒸気養生を行ない、その後、オ
ートクレーブにて、ゲージ圧１０ｋｇ／ｃｎ？、処理温
度↓８０℃、６時間の水蒸気養生処理を施して得られた
Ａ Ｔ−Ｃ製品の圧縮強度は３２ｋｇ／−でしかなかっ
た。Comparative Example 2 ALC was performed by mixing 10 parts by weight of powdered quicklime, 35 parts by weight of Portland cement, and 55 parts by weight of silica powder.
After preparing raw material powder, 67 parts by weight of water was added to 100 parts by weight of the ALC raw material powder to prepare a slurry, and after heating this slurry to 50'C, 0.07 parts by weight of aluminum powder was prepared. , height 150mm, width 150an+,
After pouring into a mold with a height of 400 on+ and foaming, it was steam-cured at 90°C for 2 hours, and then placed in an autoclave at a gauge pressure of 10kg/cn? The compressive strength of the ATC product obtained by applying steam curing treatment for 6 hours at a treatment temperature of ↓80°C was only 32 kg/-.
従来例としては予備蒸気養生を行なわないものを示す。A conventional example is one in which preliminary steam curing is not performed.
従来例１
１０重量部の粉末状生石灰と、３５重量部のポルトラン
ドセメントと、５５重量部の珪石粉とを混合してＡ Ｌ
Ｃ原料粉とした後、前記ＡＬＣ原料粉１００重量部に
対して、６７重量部の水を加えたスラリーを調製し、こ
のスラリーを４０’Ｃに加熱して後、０．０７重量部の
アルミニウム粉末を加え、縦１５０ｎｗｎ、横王５０
ｎｗｎ、高さ４００１１１１１の鋳型に流し込んで、蒸
気養生処理しないまま発泡成型した後、オートクレーブ
にて、ゲージ圧１０ｋｇ／ｄ、処理温度１８０ ’Ｃ１
６時間の水蒸気養生処理を施して得られたＡ Ｌ Ｃ製
品の圧縮強度は４１ｋｇ／ｃｎ？であった。Conventional Example 1 10 parts by weight of powdered quicklime, 35 parts by weight of Portland cement, and 55 parts by weight of silica powder were mixed and
After preparing C raw material powder, 67 parts by weight of water was added to 100 parts by weight of the ALC raw material powder to prepare a slurry, and after heating this slurry to 40'C, 0.07 parts by weight of aluminum was added. Add powder, length 150nwn, width king 50
nwn, poured into a mold with a height of 40011111, foamed without steam curing, and then placed in an autoclave at a gauge pressure of 10 kg/d and a treatment temperature of 180'C1.
The compressive strength of the ALC product obtained after 6 hours of steam curing is 41 kg/cn? Met.
従来例２
１０重量部の粉末状生石灰と、３５重量部のポルトラン
ドセメントと、５５重量部の珪石粉とを混合してＡＬＣ
原料粉とした後、前記Ａ Ｌ Ｃ原料０
粉１００重量部に対して、６７重量部の水を加えたスラ
リーを調製し、このスラリーを４０℃に加熱して後、０
．０７重量部のアルミニウム粉末を加え、縦１５０ｍｍ
、横１５０ｍｍ、高さ４００ ｎｏの鋳型に流し込んで
、蒸気養生処理しないまま発泡成型した後、オートクレ
ーブにて、ゲージ圧１０ｋｇ／ｃｒ＆、処理温度１８０
℃、４時間の水蒸気養生処理を施して得られたＡＬＣ製
品の圧縮強度は２８ ｋｇ ／ ｃｎＴであった。Conventional Example 2 ALC was performed by mixing 10 parts by weight of powdered quicklime, 35 parts by weight of Portland cement, and 55 parts by weight of silica powder.
After making the raw material powder, a slurry was prepared by adding 67 parts by weight of water to 100 parts by weight of the ALC raw material 0 powder, and after heating this slurry to 40°C,
．． Add 0.7 parts by weight of aluminum powder, and make it 150mm long.
, poured into a mold with a width of 150 mm and a height of 400 mm, foam-molded without steam curing treatment, and then placed in an autoclave at a gauge pressure of 10 kg/cr& and a treatment temperature of 180 mm.
The compressive strength of the ALC product obtained by steam curing at ℃ for 4 hours was 28 kg/cnT.
上記を比較参照容易ならしめるため下表を提供する。The table below is provided for easy comparison and reference of the above.
（以下余白） 上表より次が判明した。(Margin below) The following was found from the table above.
（ｉ）製品の圧縮強度が３５ｋｇ／−を越えるについて
は６ｈｒの養生時間を要していた従来法に較べて、本発
明によれば４ｈｒの養生時間で足り、しかも圧縮強度は
４２ｋｇ／ｃ＋＃以上にも達している。(i) Compared to the conventional method which required 6 hours of curing time for products with compressive strength exceeding 35 kg/-, according to the present invention, 4 hours of curing time is sufficient, and the compressive strength is 42 kg/c+# It has reached more than that.
（ｌ実施例１〜５に於て予備蒸気養生のうち加熱温度が
上限（９０℃）の時は３ｈｒ程度でも圧縮強度が４５ｋ
ｇ／ｃｉとなっている（実施例工）のに対し下限５０℃
の場合は２４ｈｒかけても同強度は４２ｋｇ／ｄと低く
なっている（実施例５）。こ＼より予備蒸気養生に於け
る加熱ファクタは時間ファクタよりトバモライト生成に
関してより有効であることが伺知出来る反面、中間温度
６０℃でも１２ｈｒかげた場合同強度は４７ｋｇ／ｄと
最高値を示している（実施例２）ので時間も相応な有効
ファクタとも読める。７０℃で５ｈｒの場合は５０℃で
２４ｈｒのものと強度は変らない（実施例３）。(In Examples 1 to 5, when the heating temperature was at the upper limit (90°C) during preliminary steam curing, the compressive strength was 45K even after about 3 hours.
g/ci (example work), lower limit is 50℃
In the case of 24 hours, the same strength is as low as 42 kg/d (Example 5). From this, it can be seen that the heating factor in preliminary steam curing is more effective than the time factor in terms of tobermorite formation, but on the other hand, when heated for 12 hours even at an intermediate temperature of 60°C, the same strength showed the highest value of 47 kg/d. (Example 2), time can also be read as a correspondingly effective factor. In the case of 5 hours at 70°C, the strength is the same as that of 24 hours at 50°C (Example 3).
８０℃で１２ｈｒとした場合は同強度は４．６ｋｇ／ｃ
ｔ＆と次最高値を示した（実施例４）。When the temperature is 80℃ for 12 hours, the same strength is 4.6kg/c.
It showed the next highest value after t& (Example 4).
（用）予備養生条件を超えた比較例工、２のものは圧縮
強度が４０ｋｇ／ａ＃にも達していない。Comparative Example No. 2, which exceeded the pre-curing conditions, had a compressive strength of less than 40 kg/a#.
（ｉｖ）比較例１と従来例１とを比較するに本発明予備
養生条件を逸脱した場合は予備養生をしない方が圧縮強
度は高い。(iv) Comparing Comparative Example 1 and Conventional Example 1, when the pre-curing conditions of the present invention are deviated from, the compressive strength is higher when the pre-curing is not performed.
（ｖ）比較例２と従来例２とを比較した時は予備養生を
した方がしない方より圧縮強度はや＼高い。(v) When comparing Comparative Example 2 and Conventional Example 2, the compressive strength with pre-curing was slightly higher than with no pre-curing.
（ｉ′ｖ、■）より予備養生条件は限定した範囲内に於
て強い意義があることが判る。It can be seen from (i'v, ■) that the pre-curing conditions have a strong significance within a limited range.
（発明の効果）
本発明は叙述より明らかなようにオートクレーブ養生に
先がけて鋳型内に於て予備養生を行なうことにより従来
と同様の設備を備えたままで、従来ＡＬＣの製品の製造
工程にて隘路とされていたオートクレーブを利用しての
水蒸気養生処理時間を大検に短縮出来る様になったので
、ＡＬＣの製造原価を低減する事が容易になり、斯業界
に寄与するところ大なるものがある。(Effects of the Invention) As is clear from the description, the present invention performs pre-curing in the mold prior to autoclave curing, thereby eliminating bottlenecks in the manufacturing process of conventional ALC products while maintaining the same equipment as before. It has become possible to shorten the steam curing time using an autoclave to a large extent, which was thought to be a long time ago, making it easier to reduce the manufacturing cost of ALC, which will greatly contribute to the industry. .
なお、本発明に於ける予備養生は高圧付与を全く必要と
せず、原料を鋳型に注入したままの処理・１３−
１４
であるため、高価な装置を使う必要がなくオープンエア
下で実施出来るので」二連した利益を減却せしめるもの
ではない。In addition, the pre-curing in the present invention does not require high pressure application at all, and is performed while the raw material is poured into the mold (13-14), so there is no need to use expensive equipment and it can be carried out in open air. ” This does not reduce the double profits.
以上that's all
Claims (1)
スラリーを調製し、このスラリーを鋳型に注型してアル
ミニウム粉末を加えて発泡させて半可塑化させた后、オ
ートクレーブ内で水蒸気養生を行なう水蒸気養生軽量気
泡コンクリートの製造方法に於いて、オートクレーブ養
生処理に先だって、鋳型に鋳込まれた原料スラリーに対
して５０〜９０℃にて３〜２４時間に亘る予備蒸気養生
を施す事を特徴とするＡＬＣの製造方法。1. Prepare a slurry using calcareous raw materials, silicic raw materials, and water as the main raw materials, pour this slurry into a mold, add aluminum powder, foam it, and semi-plasticize it, then heat it with steam in an autoclave. In the method for manufacturing steam-cured lightweight cellular concrete that involves curing, the raw material slurry cast into the mold is subjected to preliminary steam curing for 3 to 24 hours at 50 to 90°C prior to autoclave curing. A method for producing ALC characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207214A JP2511528B2 (en) | 1989-08-09 | 1989-08-09 | ALC manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1207214A JP2511528B2 (en) | 1989-08-09 | 1989-08-09 | ALC manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369572A true JPH0369572A (en) | 1991-03-25 |
| JP2511528B2 JP2511528B2 (en) | 1996-06-26 |
Family
ID=16536132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1207214A Expired - Lifetime JP2511528B2 (en) | 1989-08-09 | 1989-08-09 | ALC manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511528B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7581618B2 (en) | 2004-07-01 | 2009-09-01 | Jtekt Corporation | Transmission ratio variable steering device |
| EP2969998A4 (en) * | 2013-03-13 | 2016-12-28 | Solidia Technologies Inc | Aerated composite materials, methods of production and uses thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109257A (en) * | 1979-02-15 | 1980-08-22 | Asahi Chemical Ind | Manufacture of antifreezing lightweight foamed concrete |
| JPS59203748A (en) * | 1983-05-02 | 1984-11-17 | 旭化成株式会社 | Manufacture of alc |
| JPS6040418A (en) * | 1983-08-12 | 1985-03-02 | Asahi Chem Ind Co Ltd | Concrete pile and its manufacture |
| JPS61168578A (en) * | 1985-01-17 | 1986-07-30 | 旭化成株式会社 | Lightweight foamed concrete board and manufacture |
-
1989
- 1989-08-09 JP JP1207214A patent/JP2511528B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109257A (en) * | 1979-02-15 | 1980-08-22 | Asahi Chemical Ind | Manufacture of antifreezing lightweight foamed concrete |
| JPS59203748A (en) * | 1983-05-02 | 1984-11-17 | 旭化成株式会社 | Manufacture of alc |
| JPS6040418A (en) * | 1983-08-12 | 1985-03-02 | Asahi Chem Ind Co Ltd | Concrete pile and its manufacture |
| JPS61168578A (en) * | 1985-01-17 | 1986-07-30 | 旭化成株式会社 | Lightweight foamed concrete board and manufacture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7581618B2 (en) | 2004-07-01 | 2009-09-01 | Jtekt Corporation | Transmission ratio variable steering device |
| EP2969998A4 (en) * | 2013-03-13 | 2016-12-28 | Solidia Technologies Inc | Aerated composite materials, methods of production and uses thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511528B2 (en) | 1996-06-26 |
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