JPH04305044A - Production of ceramic-based building material - Google Patents
Production of ceramic-based building materialInfo
- Publication number
- JPH04305044A JPH04305044A JP3093570A JP9357091A JPH04305044A JP H04305044 A JPH04305044 A JP H04305044A JP 3093570 A JP3093570 A JP 3093570A JP 9357091 A JP9357091 A JP 9357091A JP H04305044 A JPH04305044 A JP H04305044A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- added
- cement
- sodium chloride
- strength
- 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
- 239000004566 building material Substances 0.000 title claims abstract description 10
- 239000000919 ceramic Substances 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 26
- 239000010881 fly ash Substances 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000011780 sodium chloride Substances 0.000 claims abstract description 13
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 7
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 13
- 239000002440 industrial waste Substances 0.000 abstract description 5
- 239000000377 silicon dioxide Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000010828 elution Methods 0.000 abstract description 2
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Panels For Use In Building Construction (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は窯業系建材の製造方法
に関し、詳しくはフライアッシュ等の産業廃棄物利用の
窯業系建材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing ceramic building materials, and more particularly to a method for manufacturing ceramic building materials using industrial waste such as fly ash.
【０００２】0002
【従来の技術】従来、窯業系建材のシリカ質原料として
は珪砂、フライアッシュ、スラグ、シリカヒューム、珪
藻土等が使用され、セメントその他必要に応じて消石灰
や石膏等を配合し養生硬化させることが一般的に行われ
ている。さらに、製品の軽量化と施工性改善の目的より
上記配合物にパーライトや発泡ポリスチレンビーズのよ
うな軽量骨材及びパルプ等の補強繊維が配合される。[Prior Art] Conventionally, silica sand, fly ash, slag, silica fume, diatomaceous earth, etc. have been used as siliceous raw materials for ceramic building materials, and cement and other materials such as slaked lime and gypsum can be added as needed to cure and harden. This is commonly done. Furthermore, for the purpose of reducing the weight of the product and improving workability, lightweight aggregates such as perlite and expanded polystyrene beads and reinforcing fibers such as pulp are added to the above formulation.
【０００３】0003
【従来技術の問題点】ところで、上記シリカ質原料とし
て産業廃棄物の有効利用と製造コストダウンを図るため
シリカ源にフライアッシュを大量に使用すると珪砂等を
使用した場合に較べ製品強度が低くなる傾向にあり、運
搬時、施工時等に破損し易く、実用性に乏しくなる欠点
があった。[Problems with the prior art] By the way, if a large amount of fly ash is used as a silica source in order to effectively utilize industrial waste as the siliceous raw material and reduce manufacturing costs, the strength of the product will be lower than when silica sand or the like is used. This has the disadvantage that it tends to be easily damaged during transportation, construction, etc., making it impractical.
【０００４】0004
【発明が解決しようとする課題】この発明は上記問題点
に鑑み、産業廃棄物であるフライアッシュを大量に使用
するにも拘わらず製品強度を充分に発揮し得る窯業系建
材の製造方法を提供することを目的としてなされたもの
である。[Problems to be Solved by the Invention] In view of the above-mentioned problems, the present invention provides a method for manufacturing ceramic building materials that can sufficiently exhibit product strength despite using a large amount of fly ash, which is an industrial waste. It was done for the purpose of
【０００５】[0005]
【課題を解決するための手段】即ち、この発明の窯業系
建材の製造方法は、フライアッシュとセメントとの配合
重量比が３：７〜８：２とされた配合物 １００重量部
に対し塩化ナトリウムを ０．４〜３．０ 重量％添加
し、該配合物に必要な水を添加して賦形後オートクレー
ブ養生することを特徴とするものであり、さらに上記配
合に最大限１０重量％以下の消石灰を添加し或いは軽量
発泡骨材、補強繊維材料を添加することを特徴とするも
のである。[Means for Solving the Problems] That is, the method for producing ceramic building materials of the present invention is to chlorinate 100 parts by weight of a mixture of fly ash and cement in a weight ratio of 3:7 to 8:2. It is characterized by adding 0.4 to 3.0% by weight of sodium, adding necessary water to the blend, curing in an autoclave after shaping, and further adding up to 10% by weight or less to the above blend. It is characterized by the addition of slaked lime, lightweight foamed aggregate, and reinforcing fiber material.
【０００６】[0006]
【作用】この発明のにおいて、フライアッシュとセメン
トとの配合重量比を３：７〜８：２とするのは、大量の
フライアッシュを使用することを目的とするためであり
、フライアッシュのセメントに対する重量比を３より低
くすることはフライアッシュの相対的使用量が少なくな
り過ぎ産業廃棄物の有効利用が充分に図れなくなる。
またフライアッシュのセメントに対する重量比を８より
多くすると如何にセメントさらには消石灰を添加しても
充分な強度をえることが出来なくなるからである。なお
上記範囲のうちフライアッシュとセメントとの配合重量
比を６：４とするのが好適である。[Function] In this invention, the blending weight ratio of fly ash and cement is set at 3:7 to 8:2 for the purpose of using a large amount of fly ash. If the weight ratio is lower than 3, the relative amount of fly ash used will be too small, making it impossible to fully utilize industrial waste. Furthermore, if the weight ratio of fly ash to cement is greater than 8, sufficient strength cannot be obtained no matter how much cement or slaked lime is added. Note that within the above range, it is preferable that the blending weight ratio of fly ash and cement is 6:4.
【０００７】上記配合系に塩化ナトリウムを ０．４〜
３．０ 重量％添加するのは、フライアッシュ−セメン
トの配合系の初期硬度を大きく改善するためであって、
オートクレーブ養生後の強度改善効果を高めるためであ
る。電解質材料である塩化ナトリウムにより、フライア
ッシュ中のシリカ分の液相中への溶出が促進され、セメ
ントマトリックスの結合強度向上が促進される。[0007] Sodium chloride is added to the above compounding system from 0.4 to
The purpose of adding 3.0% by weight is to greatly improve the initial hardness of the fly ash-cement blend system.
This is to enhance the strength improvement effect after autoclave curing. Sodium chloride, which is an electrolyte material, promotes the elution of silica in the fly ash into the liquid phase, promoting improvement in the bonding strength of the cement matrix.
【０００８】塩化ナトリウムの添加量を ０．４〜３．
０ 重量％とするのは、 ０．４重量％より少ないと上
記強度向上効果が無く、また３．０ 重量％より多くす
ると塩化ナトリウムがかえって不純物として作用し強度
が低下するからである。[0008] The amount of sodium chloride added is 0.4 to 3.
The reason why it is set at 0% by weight is that if it is less than 0.4% by weight, there will be no effect of improving the strength, and if it is more than 3.0% by weight, sodium chloride will act as an impurity and the strength will decrease.
【０００９】上記配合系に１０重量％以下の消石灰を必
要に応じて添加することができるが、この消石灰を１０
重量％より多く配合すると塩化ナトリウムによる強度改
善効果が失われ、、耐凍害性等の耐久性も劣化する傾向
が生じる。[0009] Slaked lime of up to 10% by weight can be added to the above-mentioned blending system as needed.
If more than % by weight is added, the strength improving effect of sodium chloride will be lost, and durability such as frost damage resistance will also tend to deteriorate.
【００１０】0010
【実施例】次に、この発明の実施例について説明する。
フライアッシュとセメントとの配合重量比を６：４とし
、この配合物８５重量％に、５重量％のパルプ繊維、軽
量骨材として１０重量％のパーライトとを添加し、この
配合物 １００重量％に対し ０．４〜４重量％（外割
）の塩化ナトリウムを添加し、さらに外割重量％にて１
重量％のメチルセルロース、及び４５重量％の水を加え
て混練押出機に供給し、厚さ１０ｍｍ、幅４００ｍｍ
、長さ５００ｍｍ の試験板を成形し、次いで圧力４ｋ
ｇ／ｃｍ２ １２時間の条件でオートクレーブ養生を行
った。上記試験片についてＪＩＳ ４ 号曲げ試験を行
ったところ図１に示すグラフのような結果を得た。なお
図１において横軸は塩化ナトリウムの添加量を、縦軸は
曲げ強度（ｋｇ／ｃｍ２）を示す。[Example] Next, an example of the present invention will be described. The blending weight ratio of fly ash and cement was 6:4, and to 85% by weight of this blend, 5% by weight of pulp fiber and 10% by weight of pearlite as a lightweight aggregate were added, and this blend was 100% by weight. Add 0.4 to 4% by weight (external weight) of sodium chloride, and further add 1% by weight (external weight).
% by weight of methylcellulose and 45% by weight of water were added and fed to a kneading extruder to form a mixture with a thickness of 10 mm and a width of 400 mm.
, a test plate with a length of 500 mm was formed, and then a pressure of 4 k was applied.
Autoclave curing was performed at g/cm2 for 12 hours. When a JIS No. 4 bending test was conducted on the above test piece, results as shown in the graph shown in FIG. 1 were obtained. In FIG. 1, the horizontal axis represents the amount of sodium chloride added, and the vertical axis represents the bending strength (kg/cm2).
【００１１】また、上記配合において、パルプ繊維及び
パーライト無添加の状態、及び消石灰を５重量％（外割
）で添加して同様な試験を行ったが、その強度について
は実施例とほぼ同様な結果が得られた。[0011] In addition, similar tests were conducted with the above formulation without the addition of pulp fiber and perlite, and with the addition of slaked lime at 5% by weight (external), and the strength was almost the same as in the example. The results were obtained.
【００１２】0012
【発明の効果】この発明は以上説明したように、塩化ナ
トリウムの添加によりフライアッシュの活性化が図られ
るのでセメントマトリックスの結合強度が高められ、フ
ライアッシュを大量に添加しても高強度の窯業系建材を
安価に製造可能となるのである。[Effects of the Invention] As explained above, this invention activates fly ash by adding sodium chloride, so the bonding strength of the cement matrix is increased, and even if a large amount of fly ash is added, high strength ceramics can be produced. This makes it possible to manufacture building materials at low cost.
【図１】この発明の実施例の塩化ナトリウムの添加量と
強度との相関を示すグラフである。FIG. 1 is a graph showing the correlation between the amount of sodium chloride added and strength in an example of the present invention.
Claims (3)
量比が３：７〜８：２とされた配合物 １００重量部に
対し塩化ナトリウムを ０．４〜３．０重量％添加し、
該配合物に必要な水を添加して賦形後オートクレーブ養
生する窯業系建材の製造方法。Claim 1: 0.4 to 3.0% by weight of sodium chloride is added to 100 parts by weight of a mixture in which the weight ratio of fly ash and cement is 3:7 to 8:2,
A method for producing a ceramic building material, which comprises adding necessary water to the blend, shaping it, and then curing it in an autoclave.
量比が３：７〜８：２とされた配合物 １００重量部に
対し塩化ナトリウムを ０．４〜３．０重量％、消石灰
を最大限１０重量％添加し、該配合物に必要な水を添加
して賦形後オートクレーブ養生する窯業系建材の製造方
法。Claim 2: A composition in which the blending weight ratio of fly ash and cement is 3:7 to 8:2.To 100 parts by weight, sodium chloride is contained in an amount of 0.4 to 3.0% by weight, and slaked lime is contained in a maximum amount of 10% by weight. % by weight, adding necessary water to the mixture, shaping it, and curing it in an autoclave.
てなる請求項１または請求項２に記載の窯業系建材の製
造方法。3. The method for producing a ceramic building material according to claim 1 or 2, wherein a lightweight foamed aggregate and a reinforcing fiber material are added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3093570A JPH04305044A (en) | 1991-03-29 | 1991-03-29 | Production of ceramic-based building material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3093570A JPH04305044A (en) | 1991-03-29 | 1991-03-29 | Production of ceramic-based building material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04305044A true JPH04305044A (en) | 1992-10-28 |
Family
ID=14085918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3093570A Pending JPH04305044A (en) | 1991-03-29 | 1991-03-29 | Production of ceramic-based building material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04305044A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07242457A (en) * | 1994-03-02 | 1995-09-19 | Nippon Paper Ind Co Ltd | Cement composition |
| US6780236B2 (en) * | 2002-09-12 | 2004-08-24 | Ronald Lee Barbour | Settable composition containing sodium chloride |
| WO2005087687A1 (en) * | 2004-03-12 | 2005-09-22 | Mega-Tech Holding B.V. | Construction composition and method for making a construction product |
| NL1031142C2 (en) * | 2006-02-14 | 2007-08-16 | Mega Tech Holding Bv | Binder composition, construction composition comprising this binder composition as well as method for the preparation of the construction composition and use thereof. |
| JP2019069881A (en) * | 2017-10-11 | 2019-05-09 | 太平洋マテリアル株式会社 | Mortar composition and mortar |
-
1991
- 1991-03-29 JP JP3093570A patent/JPH04305044A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07242457A (en) * | 1994-03-02 | 1995-09-19 | Nippon Paper Ind Co Ltd | Cement composition |
| US6780236B2 (en) * | 2002-09-12 | 2004-08-24 | Ronald Lee Barbour | Settable composition containing sodium chloride |
| WO2005087687A1 (en) * | 2004-03-12 | 2005-09-22 | Mega-Tech Holding B.V. | Construction composition and method for making a construction product |
| US7837787B2 (en) | 2004-03-12 | 2010-11-23 | Mega-Tech Holding B.V. | Construction composition and method for making a construction product |
| NL1031142C2 (en) * | 2006-02-14 | 2007-08-16 | Mega Tech Holding Bv | Binder composition, construction composition comprising this binder composition as well as method for the preparation of the construction composition and use thereof. |
| EP1829840A2 (en) * | 2006-02-14 | 2007-09-05 | Mega-Tech Holding B.V. | A binder composition, a construction comprising said binder composition, as well as a method for preparing the construction composition and use thereof. |
| EP1829840A3 (en) * | 2006-02-14 | 2009-01-14 | Mega-Tech Holding B.V. | A binder composition, a construction comprising said binder composition, as well as a method for preparing the construction composition and use thereof. |
| US7993449B2 (en) | 2006-02-14 | 2011-08-09 | Mega-Tech Holding B.V. | Binder composition, a construction compositon comprising said binder composition, as well as a method for preparing the construction composition and use thereof |
| JP2019069881A (en) * | 2017-10-11 | 2019-05-09 | 太平洋マテリアル株式会社 | Mortar composition and mortar |
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