JP2001106552A - Glass foam - Google Patents
Glass foamInfo
- Publication number
- JP2001106552A JP2001106552A JP28747799A JP28747799A JP2001106552A JP 2001106552 A JP2001106552 A JP 2001106552A JP 28747799 A JP28747799 A JP 28747799A JP 28747799 A JP28747799 A JP 28747799A JP 2001106552 A JP2001106552 A JP 2001106552A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- foam
- compound
- foamed glass
- weight
- 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- Withdrawn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
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はガラスを発泡化させ
てガラス発泡体、その製造方法、および発泡ガラスを含
む軽量材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foamed glass obtained by foaming glass, a method for producing the same, and a lightweight material containing foamed glass.
【０００２】[0002]
【従来の技術】一般に廃ガラスはカレットとしてガラス
製品の成形に再利用されるとともに、発泡ガラスの原料
として使用されている。従来ガラスを発泡化させるに
は、カーボンやＳｉＣを発泡剤としてガラス原料に添加
し、同原料を加熱していた。2. Description of the Related Art In general, waste glass is reused as cullet for forming glass products and used as a raw material for foamed glass. Conventionally, in order to foam glass, carbon or SiC was added to a glass raw material as a blowing agent, and the raw material was heated.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな方法では生成した気泡は連続的に繋がった状態とな
り、得られたガラス発泡体は吸水性が著しく高いため
に、例えば水中で使用する用途においては時間の経過と
ともに重量が増し、ガラス発泡体の特徴である軽量性を
保つことができないという難点があった。However, in such a method, the generated bubbles are continuously connected, and the obtained glass foam has a remarkably high water absorption. However, there was a problem in that the weight increased with the passage of time, and it was not possible to maintain the lightness characteristic of the glass foam.
【０００４】また、上記ガラス発泡体を例えば屋外にお
いて断熱材として使用した場合にも、同様に吸湿が進行
し、断熱性が徐々に低下する問題があった。Also, when the above-mentioned glass foam is used as a heat insulating material, for example, outdoors, there is a problem that moisture absorption similarly proceeds, and the heat insulating property gradually decreases.
【０００５】本発明は、上記諸問題に鑑み、独立気泡を
有し長期間にわたり安定した特性を維持できる発泡ガラ
スを提供することを目的とする。[0005] In view of the above problems, an object of the present invention is to provide a foamed glass having closed cells and capable of maintaining stable characteristics for a long period of time.
【０００６】[0006]
【課題を解決するための手段】本発明によるガラス発泡
体は、非溶解成分を１〜５重量％含み、独立気泡を有す
ることを特徴とするものである。The glass foam according to the present invention is characterized by containing 1 to 5% by weight of a non-dissolved component and having closed cells.
【０００７】本明細書全体を通して「非溶解成分」と
は、発泡ガラスの製造における通常の原料溶融温度条件
である７００〜９００℃の温度域で溶融ガラス原料に溶
解しない成分を言う。このような非溶解成分はＺｒ、Ｃ
ｒまたはＴｉ、もしくはこれらの化合物であってよく、
化合物は酸化物、炭化物、窒化物、ホウ化物等であって
よい。非溶解成分の例としては、ＺｒまたはＺｒＯ2 、
ＺｒＳｉＯ4 、ＺｒＣ、ＺｒＢ2 、ＺｒＮ等のＺｒ化合
物；ＣｒまたはＣｒ2 Ｏ3 、Ｃｒ2 Ｎ、Ｃｒ3 Ｃ2 、Ｃ
ｒＢ等のＣｒ化合物；およびＴｉまたはＴｉＯ2 、Ｔｉ
Ｃ、ＴｉＢ2 、ＴｉＮ等のＴｉ化合物が挙げられる。こ
れらは単独でもしくは２以上の組み合わせで用いられ
る。[0007] Throughout this specification, the term "non-dissolved component" refers to a component that does not dissolve in a molten glass raw material in a temperature range of 700 to 900 ° C, which is a usual raw material melting temperature condition in the production of foamed glass. Such undissolved components are Zr, C
r or Ti, or a compound thereof,
The compound may be an oxide, carbide, nitride, boride and the like. Examples of insoluble components include Zr or ZrO 2 ,
Zr compounds such as ZrSiO 4 , ZrC, ZrB 2 , ZrN; Cr or Cr 2 O 3 , Cr 2 N, Cr 3 C 2 , C
a Cr compound such as rB; and Ti or TiO 2 , Ti
Ti compounds such as C, TiB 2 , and TiN are exemplified. These are used alone or in combination of two or more.
【０００８】本発明によるガラス発泡体は、廃ガラスの
ようなガラス原料に発泡剤および非溶解成分１〜５重量
％を加え、得られた混合物を加熱してガラス原料を溶融
し、溶融物を徐冷して得ることができる。The glass foam according to the present invention is obtained by adding a blowing agent and 1 to 5% by weight of a non-dissolved component to a glass raw material such as waste glass, and heating the resulting mixture to melt the glass raw material. It can be obtained by slow cooling.
【０００９】上記発泡ガラスを、例えば骨材としてコン
クリートに内含させることにより、軽量コンクリートを
製造することができる。[0009] Lightweight concrete can be produced by incorporating the above foamed glass into concrete, for example, as an aggregate.
【００１０】また、上記発泡ガラスを含む樹脂を成形す
ることにより、軽量プラスチックを製造することができ
る。例えば、ポリエステル樹脂やエポキシ樹脂などを発
泡ガラスを詰め込んだ型枠に注入したり、ポリプロピレ
ンやポリ塩化ビニール等の熱可塑性樹脂を型枠に入れた
状態で加熱、保持することによって、発泡ガラス同士を
樹脂により強固に結合させた材料が得られる。この材料
は従来のプラスチックに比べて発泡ガラスを含むために
海水に対する良好な耐食性を示すものであり、浮標等へ
の適用が可能である。また、この材料は、従来の発泡プ
ラスチックと比較して耐熱性が高いため、断熱用途へも
使用することが可能である。Further, by molding the resin containing the foamed glass, a lightweight plastic can be manufactured. For example, by injecting a polyester resin or an epoxy resin into a mold filled with foamed glass, or by heating and holding a thermoplastic resin such as polypropylene or polyvinyl chloride in the mold, the foamed glasses are separated from each other. A material tightly bound by the resin is obtained. Since this material contains foamed glass as compared with conventional plastics, it exhibits good corrosion resistance to seawater and can be applied to buoys and the like. In addition, since this material has higher heat resistance than conventional foamed plastics, it can be used for heat insulation.
【００１１】[0011]
【発明の実施の形態】以下に本発明を実施例に基づいて
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments.
【００１２】１）発泡ガラスの製造 平均粒径８０μｍのソーダライム質の廃ガラスに発泡剤
としてＳｉＣを重量比で１％、および、表１に示すよう
に、非溶融成分としてＺｒ、Ｃｒ、Ｔｉの化合物をそれ
ぞれ所定量添加し、これらをアルミナ陶器製のボールミ
ルにて乾式で１６時間混合した。得られた粉末をアルミ
ナ製坩堝に入れ、１００℃／時間の昇温速度で８００℃
まで加熱し、１時間保持し、その後徐冷した。こうして
Ｎｏ．１〜１４の発泡ガラス試料を得た。1) Production of foamed glass 1% by weight of SiC as a foaming agent in soda-lime waste glass having an average particle size of 80 μm, and as shown in Table 1, Zr, Cr, Ti as non-molten components Were added in predetermined amounts, and these were dry-mixed in an alumina ceramic ball mill for 16 hours. The obtained powder was placed in an alumina crucible and heated at a rate of 100 ° C./hour to 800 ° C.
And kept for 1 hour, then slowly cooled. No. 1 to 14 foam glass samples were obtained.
【００１３】２）評価試験 これらの発泡ガラス試料を水を入れた容器に投入し、水
圧を４ｋｇ／ｃｍ2 、２４時間付加した後、試料の加圧
吸水率を測定し、得られた吸水率から気泡の独立性を評
価した。これらの結果を表１に示す。2) Evaluation test These foamed glass samples were put into a container filled with water, and after applying a water pressure of 4 kg / cm 2 for 24 hours, the water absorption under pressure of the sample was measured, and the obtained water absorption was measured. Was evaluated for bubble independence. Table 1 shows the results.
【００１４】表１において、加圧吸水率が４０％を超え
た例、または加圧吸水後の比重が１を超え試料が水中に
沈んだ例を不良として評価し、×印を付した。それ以外
の例は良好なものと評価し、○印を付した。In Table 1, an example in which the water absorption under pressure exceeded 40% or an example in which the specific gravity after water absorption under pressure exceeded 1 and the sample was submerged in water was evaluated as defective, and was marked X. Other examples were evaluated as good and marked with a circle.
【００１５】非溶解成分を用いない例および非溶解成分
の必要添加量１〜５重量％の範囲を外れた例（Ｎｏ．
１，２，５）では、いずれも吸水率が高くなったり、あ
るいは見かけ比重が大きくなり加圧吸水後の比重が大き
くなったため、本発明の特徴である独立気泡を有しかつ
軽量な発泡ガラスは得られなかった。非溶解成分を１〜
５重量％の範囲で含む例（Ｎｏ．３，４，６〜１４）で
は、いずれも吸水率が４０％以下でありかつ加圧吸水後
の比重が１未満であり、本発明の特徴である独立気泡を
有しかつ軽量な発泡ガラスが得られた。Examples in which no insoluble components are used and examples in which the required amount of insoluble components is outside the range of 1 to 5% by weight (No.
In (1, 2, 5), the water absorption rate was high, or the apparent specific gravity was large, and the specific gravity after pressurized water absorption was large. Therefore, the lightweight foamed glass having closed cells which is a feature of the present invention. Was not obtained. 1 to undissolved components
In the examples (Nos. 3, 4, 6 to 14) containing 5% by weight, the water absorption is 40% or less and the specific gravity after pressurized water absorption is less than 1, which is a feature of the present invention. A lightweight foam glass having closed cells was obtained.
【００１６】[0016]
【表１】 [Table 1]
【００１７】各試料の見掛け比重と加圧吸水率との関係
を図１に示す。FIG. 1 shows the relationship between the apparent specific gravity of each sample and the water absorption under pressure.
【００１８】３）軽量コンクリートの製造 試料Ｎｏ．３に示す発泡ガラスをコンクリート用の人工
軽量骨材として用いて軽量コンクリートを製造し、その
特性を調べる試験を行った。3) Production of lightweight concrete Lightweight concrete was manufactured using the foamed glass shown in No. 3 as an artificial lightweight aggregate for concrete, and a test for examining the characteristics was performed.
【００１９】まず、ＪＩＳ Ａ１１３２に従って強度試
験片を作製した。すなわち、セメント１４重量％、粗骨
材としての粒径２５〜５０ｍｍの発泡ガラス４３重量
％、混和材５重量％、細骨材としての川砂３２重量％、
水６重量％からなる組成物を型枠に詰め込み、３０時間
後に型ばらしを行い、２０℃の飽和水蒸気中で７２時間
養生を行い、直径１５ｃｍ×高さ３０ｃｍの円柱形の試
験片を作製した。First, a strength test piece was prepared according to JIS A1132. That is, 14% by weight of cement, 43% by weight of foamed glass having a particle size of 25 to 50 mm as coarse aggregate, 5% by weight of admixture, 32% by weight of river sand as fine aggregate,
A composition consisting of 6% by weight of water was packed in a mold, and after 30 hours, the mold was separated and cured in saturated steam at 20 ° C. for 72 hours to produce a cylindrical test piece having a diameter of 15 cm and a height of 30 cm. .
【００２０】得られた５個の試験片をそれぞれＪＩＳ
Ａ１１０８に従って圧縮強度試験に付した。その結果、
本発明における発泡ガラスを添加した試験片の圧縮強度
は２８０ｋｇｆ／ｃｍ2 であった。軽量コンクリートの
場合、ＪＩＳ Ａ５００２によると圧縮強度は１０２ｋ
ｇｆ／ｃｍ2 あれば良いので、本発明による発泡ガラス
は十分な強度を有していることが分かる。Each of the five test pieces obtained was subjected to JIS
It was subjected to a compressive strength test according to A1108. as a result,
The compressive strength of the test piece to which the foam glass according to the present invention was added was 280 kgf / cm 2 . In the case of lightweight concrete, the compressive strength is 102k according to JIS A5002.
Since gf / cm 2 is sufficient, it can be seen that the foamed glass according to the present invention has sufficient strength.
【００２１】また、試験片の分析試験の結果、ＳＯ3 ま
たはＮａＣｌは検出されず、強熱減量も０．２％であ
り、ＪＩＳ Ａ５００２の規定値に適している。As a result of an analysis test of the test piece, SO 3 or NaCl was not detected, and the ignition loss was 0.2%, which is suitable for the specified value of JIS A5002.
【００２２】このように、本発明による発泡ガラスは、
従来の路盤材料はもとより、コンクリートの粗骨材とし
ても適用し得る。As described above, the foamed glass according to the present invention is:
It can be applied not only to conventional roadbed materials but also to coarse aggregate of concrete.
【００２３】[0023]
【発明の効果】上述したように、本発明による発泡ガラ
スは、独立気泡を多く有するものであり、したがって、
吸水性が低く、水中でも軽量性を維持することができ
る。また、本発明による発泡ガラスは、骨材として軽量
コンクリートに適用しても十分強度を保有しており、軽
質コンクリートの材料として適用可能である。また、樹
脂により発泡ガラス同士を結合することによって、海水
に対する耐食性および耐熱性の良好な軽量プラスチック
を得ることができる。As described above, the foamed glass according to the present invention has a large number of closed cells.
It has low water absorption and can maintain lightweight even in water. Further, the foamed glass according to the present invention has sufficient strength even when applied to lightweight concrete as an aggregate, and can be applied as a material for light concrete. Further, by joining the foamed glass with each other by the resin, a lightweight plastic having good corrosion resistance and heat resistance to seawater can be obtained.
【図１】試料の見掛け比重と加圧吸水率との関係を示す
グラフである。FIG. 1 is a graph showing the relationship between the apparent specific gravity of a sample and the water absorption under pressure.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上川 泰治 大阪市住之江区南港北１丁目７番89号 日 立造船株式会社内 (72)発明者 浜辺 孝平 大阪市住之江区南港北１丁目７番89号 日 立造船株式会社内 Ｆターム(参考） 4G062 AA01 AA12 AA13 BB03 CC03 CC04 MM01 MM40 NN40 PP01 PP04 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Taiji Kamikawa 1-7-89 Minami Kohoku, Suminoe-ku, Osaka City Inside Tachibana Shipbuilding Co., Ltd. (72) Inventor Kohei Hamana 1-7-89 Minami Kohoku, Suminoe-ku, Osaka-shi Issue Date T-Shipbuilding Co., Ltd. F-term (reference) 4G062 AA01 AA12 AA13 BB03 CC03 CC04 MM01 MM40 NN40 PP01 PP04
Claims (7)
泡を有することを特徴とするガラス発泡体。1. A glass foam containing 1 to 5% by weight of a non-dissolved component and having closed cells.
物、Ｃｒまたはその化合物および／またはＴｉまたはそ
の化合物である請求項１記載のガラス発泡体。2. The glass foam according to claim 1, wherein the insoluble component is Zr or a compound thereof, Cr or a compound thereof, and / or Ti or a compound thereof.
〜５重量％を加え、得られた混合物を加熱してガラス原
料を溶融し、溶融物を徐冷して、独立気泡を有するガラ
ス発泡体を得ることを特徴とするガラス発泡体の製造方
法。3. A blowing agent and a non-dissolved component 1 in a glass raw material.
A method for producing a glass foam, characterized by adding about 5% by weight, heating the resulting mixture to melt the glass raw material, and gradually cooling the melt to obtain a glass foam having closed cells.
３記載のガラス発泡体の製造方法。4. The method for producing a glass foam according to claim 3, wherein said glass raw material is waste glass.
物、Ｃｒまたはその化合物および／またはＴｉまたはそ
の化合物である請求項３または４記載のガラス発泡体の
製造方法。5. The method for producing a glass foam according to claim 3, wherein the insoluble component is Zr or a compound thereof, Cr or a compound thereof, and / or Ti or a compound thereof.
しくは請求項３〜５のいずれかに記載の方法で得られた
発泡ガラスを骨材として含む軽量コンクリート。6. A lightweight concrete comprising, as an aggregate, the foamed glass according to claim 1 or 2, or the foamed glass obtained by the method according to any one of claims 3 to 5.
しくは請求項３〜５のいずれかに記載の方法で得られた
発泡ガラスを含む軽量プラスチック。7. A lightweight plastic comprising the foam glass according to claim 1 or 2, or the foam glass obtained by the method according to any one of claims 3 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28747799A JP2001106552A (en) | 1999-10-08 | 1999-10-08 | Glass foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28747799A JP2001106552A (en) | 1999-10-08 | 1999-10-08 | Glass foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001106552A true JP2001106552A (en) | 2001-04-17 |
Family
ID=17717857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28747799A Withdrawn JP2001106552A (en) | 1999-10-08 | 1999-10-08 | Glass foam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001106552A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089558A (en) * | 2001-09-17 | 2003-03-28 | Tokyu Constr Co Ltd | Lightweight aggregate for mortar |
| US6913643B2 (en) * | 2003-02-18 | 2005-07-05 | Integrated Environmental Technologies, Llc | Lightweight foamed glass aggregate |
| KR101083937B1 (en) * | 2009-08-04 | 2011-11-15 | 정광복 | Lightweight building materials and its manufacturing method |
| JP2013107785A (en) * | 2011-11-18 | 2013-06-06 | East Japan Railway Co | Roadbed material with glass foam |
| CN103241955A (en) * | 2013-04-27 | 2013-08-14 | 四川大学 | Method for preparing microcrystalline foam glass by using high titanium blast furnace slag and waste glass powder |
| US10364176B1 (en) | 2016-10-03 | 2019-07-30 | Owens-Brockway Glass Container Inc. | Glass precursor gel and methods to treat with microwave energy |
| US10427970B1 (en) | 2016-10-03 | 2019-10-01 | Owens-Brockway Glass Container Inc. | Glass coatings and methods to deposit same |
| US10479717B1 (en) | 2016-10-03 | 2019-11-19 | Owens-Brockway Glass Container Inc. | Glass foam |
-
1999
- 1999-10-08 JP JP28747799A patent/JP2001106552A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089558A (en) * | 2001-09-17 | 2003-03-28 | Tokyu Constr Co Ltd | Lightweight aggregate for mortar |
| US6913643B2 (en) * | 2003-02-18 | 2005-07-05 | Integrated Environmental Technologies, Llc | Lightweight foamed glass aggregate |
| KR101083937B1 (en) * | 2009-08-04 | 2011-11-15 | 정광복 | Lightweight building materials and its manufacturing method |
| JP2013107785A (en) * | 2011-11-18 | 2013-06-06 | East Japan Railway Co | Roadbed material with glass foam |
| CN103241955A (en) * | 2013-04-27 | 2013-08-14 | 四川大学 | Method for preparing microcrystalline foam glass by using high titanium blast furnace slag and waste glass powder |
| US10364176B1 (en) | 2016-10-03 | 2019-07-30 | Owens-Brockway Glass Container Inc. | Glass precursor gel and methods to treat with microwave energy |
| US10427970B1 (en) | 2016-10-03 | 2019-10-01 | Owens-Brockway Glass Container Inc. | Glass coatings and methods to deposit same |
| US10479717B1 (en) | 2016-10-03 | 2019-11-19 | Owens-Brockway Glass Container Inc. | Glass foam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5043369A (en) | Glass/glass-ceramic-plastic alloy articles | |
| JPS6283386A (en) | Heat insulator for organism generating silica | |
| JP2001106552A (en) | Glass foam | |
| Abdul-Hussein et al. | Effect of nature materials powders on mechanical and physical properties of glass fiber/epoxy composite | |
| KR20160127958A (en) | Reactive powder concrete artificial stone for outer wall of building and manufacturing thereof | |
| US5516592A (en) | Manufacture of foamed aluminum alloy composites | |
| JPH0987001A (en) | Production of inorganic molding | |
| US20210340064A1 (en) | Filler Made from Sorted Waste Materials for the Production of Cement-bound Shaped Bodies | |
| Wang et al. | Experimental investigations of polypropylene and poly (vinyl chloride) composites filled with plerospheres | |
| GB2348875A (en) | Lightweight composites containing cenospheres and a cementing agent or thermoplastic polymer | |
| JP2511443B2 (en) | Manufacturing method for lightweight cement products | |
| JPH09315846A (en) | Production of lightweight inorganic compact | |
| US4198245A (en) | Process for producing concrete structures of high strength | |
| JPS6016878A (en) | Composition based on inorganic material for water glass foaming agent | |
| JPH11343129A (en) | Preparation of formed glass | |
| JP2000063161A (en) | Filler inorganic hydraulic composition and board material | |
| JPH06144950A (en) | Production of ceramic lightweight building material | |
| JP2511437B2 (en) | Lightweight cement products | |
| JP2000191927A (en) | Cured plastic material to be added to cement and its production | |
| US343695A (en) | Manufacture of artificial stone and marble | |
| JPH06321593A (en) | Cement composition and production of cement molded form using the same | |
| JP3074921B2 (en) | Vitreous sintered body | |
| JP2004161556A (en) | Foamed glass and method of manufacturing the same | |
| Hassett et al. | Task 5.9-Use of coal ash in recycled plastics and composite materials | |
| JP3262037B2 (en) | Building material and structural material, and method of manufacturing the same |
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: 20070109 |