JPS6150896B2 - - Google Patents
Info
- Publication number
- JPS6150896B2 JPS6150896B2 JP15423978A JP15423978A JPS6150896B2 JP S6150896 B2 JPS6150896 B2 JP S6150896B2 JP 15423978 A JP15423978 A JP 15423978A JP 15423978 A JP15423978 A JP 15423978A JP S6150896 B2 JPS6150896 B2 JP S6150896B2
- Authority
- JP
- Japan
- Prior art keywords
- alkali
- dust
- solution
- silicofluoride
- materials
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 7
- 235000011126 aluminium potassium sulphate Nutrition 0.000 claims description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims description 7
- 229940050271 potassium alum Drugs 0.000 claims description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 4
- 235000021317 phosphate Nutrition 0.000 claims description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000012047 saturated solution Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910001868 water Inorganic materials 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000008188 pellet Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 4
- 239000011346 highly viscous material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 150000002680 magnesium Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005332 obsidian Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- -1 saturated calcium fluorosilicate Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Description
【発明の詳細な説明】
本発明はケイ酸質産業廃棄物のフエロシリコン
ダスト等のフエロアロイダスト及びケイ酸アルカ
リ又は強アルカリ物質を主材料とし、これに副材
料として、カリ明ばん、消石灰及びホウ酸アルカ
リ、アルミン酸ソーダ、水酸化アルミ、ベントナ
イト並びにリン酸塩のうち、１種又は２種以上の
溶液を加え、混練してなる高粘性混練物をペレツ
ト化した後、２段階の加熱発泡させ、さらに外表
面にケイ弗化物の溶液を含浸させてなる無機軽量
骨材に係り、広範囲の比重及び圧縮強度を有する
構造材料が容易に製造できる無機軽量骨材を提供
することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention uses ferroalloy dust such as ferrosilicon dust of silicic acid industrial waste and an alkali silicate or a strong alkaline substance as main materials, and as an auxiliary material, potassium alum, After adding and kneading a solution of one or more of slaked lime and alkali borate, sodium aluminate, aluminum hydroxide, bentonite, and phosphate, a highly viscous kneaded product is pelletized, and then a two-stage process is carried out. The purpose of the present invention is to provide an inorganic lightweight aggregate that is formed by heating and foaming and further impregnating the outer surface with a silicofluoride solution, which can be easily manufactured into structural materials having a wide range of specific gravity and compressive strength. shall be.
近年建築様式の高層化に伴い、建材の軽量化が
要求されるようになり、構造材料、内装材共にこ
の傾向が著しくなつており、この要求に合うもの
として、軽量骨材として、パーライト、石炭ガ
ラ、黒曜石の焼成体等が砂利の代りとして考えら
れているが、いづれも構造材料の充填剤としては
圧縮強度が低く、吸水率大で、使用に際してはか
なりの問題があつた。 In recent years, as architectural styles have become more high-rise, there has been a demand for lighter building materials, and this trend has become remarkable for both structural and interior materials.Perlite and coal are being used as lightweight aggregates to meet this demand. Fired bodies of glass, obsidian, etc. have been considered as alternatives to gravel, but they all have low compressive strength and high water absorption as fillers for structural materials, and there have been considerable problems in their use.
本発明はこれらの欠点を解消すべく研究の末、
完成した無機軽量骨材である。主材料の一である
フエロアロイダストは、フエロシリコンを製造す
る際に電気炉から排出される粉塵の一種であり、
商品名を「シリカフラワー」（上越電炉工業）と
いい、従来は産業廃棄物として処分に困つていた
ものである。 The present invention was developed after research to eliminate these drawbacks.
It is a completed inorganic lightweight aggregate. Ferroalloy dust, one of the main materials, is a type of dust emitted from the electric furnace when manufacturing ferrosilicon.
The product name is ``Silica Flower'' (Joetsu Denko Kogyo), and in the past it was difficult to dispose of as industrial waste.
主成分は無定形二酸化ケイ素SiO291％，
Fe2O31％，Al2O31％であり、白色乃至黒色の微
細な砂状物である。 The main component is amorphous silicon dioxide SiO 2 91%,
It contains 1% Fe 2 O 3 and 1% Al 2 O 3 , and is a white to black fine sand-like substance.
本発明はこのフエロアロイダストとケイ酸アル
カリ又は強アルカリ物質とを主材料とし、これに
副材料として、カリ明ばん、消石灰及びホウ酸ア
ルカリ、アルミン酸ソーダ、水酸化アルミ、ベン
トナイト並びにリン酸塩のうち、いづれか１種又
は２種以上の溶液を加えて均一に混練し、高粘度
の混練物を造る。しかる後これを球状、棒状等の
任意の形状にペレツト化し、高周波加熱炉にて
200〜400℃で５〜10分間焼成して発泡させ、つい
でロータリーキルン等の焼結炉で２次加熱発泡さ
せて、そのあとその外表面にケイ弗化マグネシウ
ム等のケイ弗化物溶液を含浸させ軽量で表面ち密
な無機軽量骨材を得る。 The present invention uses this ferroalloy dust and an alkali silicate or strong alkaline substance as main materials, and also contains potassium alum, slaked lime, alkali borate, sodium aluminate, aluminum hydroxide, bentonite, and phosphoric acid as auxiliary materials. A solution of one or more salts is added and kneaded uniformly to produce a highly viscous kneaded product. This is then pelletized into any shape, such as a sphere or a rod, and heated in a high-frequency heating furnace.
It is fired at 200 to 400℃ for 5 to 10 minutes to foam, then secondary heating and foaming is performed in a sintering furnace such as a rotary kiln, and then the outer surface is impregnated with a silicofluoride solution such as magnesium silicofluoride to make it lightweight. to obtain a surface-dense inorganic lightweight aggregate.
次いで本発明を更に詳細に説明すると、カリ明
ばん、消石灰及びホウ酸アルカリ、アルミン酸ソ
ーダ、水酸化アルミ、ベントナイト並びに各種リ
ン酸塩（Na，Ｋ，Al，Mg，Ca塩等）のうち、い
づれか１種又は２種以上の溶液を前記フエロアロ
イダスト及びケイ酸アルカリの中に混練して均一
なるもち状の高粘性物を造る。又はフエロアロイ
ダストに水酸化ナトリウム又は水酸化カリと水を
加えて混合し、常温で十数分放置すると、反応生
成物を得る。この反応生成物にカリ明ばん、消石
灰、ホウ酸アルカリ、アルミン酸ソーダ、水酸化
アルミ、ベントナイト、各種リン酸塩のうち、い
づれか１種又は２種以上の溶液を加えもち状の高
粘性物を造る。続いてかくして得られたもち状の
高粘性物を任意の大きさの球状、棒状等のペレツ
トとし、高周波加熱炉中で200〜400℃にて５分間
焼成して発泡させる。 Next, to explain the present invention in more detail, among potassium alum, slaked lime, alkali borate, sodium aluminate, aluminum hydroxide, bentonite, and various phosphates (Na, K, Al, Mg, Ca salts, etc.), One or more kinds of solutions are kneaded into the ferroalloy dust and alkali silicate to produce a uniform, sticky, highly viscous material. Alternatively, a reaction product can be obtained by adding sodium hydroxide or potassium hydroxide and water to ferroalloy dust, mixing the mixture, and allowing it to stand at room temperature for more than ten minutes. A solution of one or more of potassium alum, slaked lime, alkali borate, sodium aluminate, aluminum hydroxide, bentonite, and various phosphates is added to this reaction product to form a sticky, highly viscous material. make. Subsequently, the glutinous highly viscous material thus obtained is made into spherical, rod-shaped, etc. pellets of arbitrary size, and is fired in a high-frequency heating furnace at 200 to 400°C for 5 minutes to foam.
この際、主材料と副材料とに含有された水分が
気化して微細な気泡をペレツト内に作り、ペレツ
トは膨張し１次発泡物がえられる。この場合、高
周波加熱によりペレツトの中心部も外周部も均一
に加熱されるので、一般のオーブン加熱の時のよ
うに表皮がまず硬くなり、逐次加熱が中心部に及
び、このため膨張が押えられるという欠点がな
く、膨張率がよい。 At this time, the moisture contained in the main material and the auxiliary material evaporates to form fine air bubbles within the pellet, and the pellet expands to obtain a primary foam. In this case, the high frequency heating uniformly heats both the center and the outer periphery of the pellet, so the outer layer first becomes hard, just like when heating in a general oven, and then heating gradually reaches the center, which suppresses expansion. It does not have this drawback and has a good expansion rate.
このあとロータリーキルン等を用いて500〜
1000℃の高温にて５分〜10分加熱すると、主材料
と副材料成分とが高温により三次元的な重合反応
を起こして高分子化し、分解ガスによる第２次的
発泡が行われて膨張し、表面硬度の硬い、発泡の
均質な軽量骨材となる。この骨材の外表面にケイ
弗化マグネシウム等のケイ弗化物の飽和溶液を噴
霧、又は浸漬等により含浸せしめ乾燥すると、骨
材表面に残留したアルカリとケイ弗化物とが中和
したケイ弗化物の皮膜ができ、これが骨材内部の
遊離アルカリ分の外部への溶出を防止できる。 After this, using a rotary kiln etc., 500~
When heated for 5 to 10 minutes at a high temperature of 1000°C, the main material and sub-material components undergo a three-dimensional polymerization reaction due to the high temperature and become polymerized, and secondary foaming occurs due to decomposition gas and expands. It becomes a foamed, homogeneous lightweight aggregate with a hard surface. When the outer surface of the aggregate is impregnated with a saturated solution of silicofluoride such as magnesium silicofluoride by spraying or immersion and dried, the alkali and silicofluoride remaining on the surface of the aggregate are neutralized to form a silicofluoride. A film is formed, which prevents the free alkaline content inside the aggregate from leaching to the outside.
更に本発明の無機軽量骨材は各原料の配合比及
び焼成温度、焼成時間を変えるだけで広範囲の比
重及び圧縮強度を有するものがえられ、さらにシ
リコン樹脂の添加量によつて耐水性、はつ水性に
すぐれたものがえられる。 Furthermore, the inorganic lightweight aggregate of the present invention can be obtained with a wide range of specific gravity and compressive strength by simply changing the blending ratio of each raw material, firing temperature, and firing time, and furthermore, depending on the amount of silicone resin added, water resistance and A product with excellent water repellency can be obtained.
又、ペレツト化する際のペレツトの形状により
任意の形状、粒径のものが得られ、この点でも従
来の骨材に比べて大きな利点がある。 Furthermore, pellets of any desired shape and particle size can be obtained depending on the shape of the pellets when pelletized, and this point also has a great advantage over conventional aggregates.
さらに、主材料はきわめて安価な産業廃棄物の
フエロアロイダストを使用しており、工程も簡単
であるので、非常に安価に提供できる。 Furthermore, the main material is ferroalloy dust, which is extremely cheap industrial waste, and the process is simple, so it can be provided at a very low price.
〔実施例 １〕
シリカフラワー（上越電炉工業） 120重量部
水ガラス（ケイ酸ソーダ１号） 100 〃
消石灰飽和溶液 10 〃
ホウ砂飽和溶液 10 〃
カリ明ばん飽和溶液 10 〃
上記原料を混合し、均一に混練してモチ状の高
粘性物となし、これを粒径2m／ｍの粒状にペレ
ツト化し、高周波加熱炉（出力600W）中におい
て200〜400℃で５分間焼成する。ついでロータリ
ーキルンによつて600℃×10分間焼成する。この
あとケイ弗化マグネシウム飽和溶液中に浸漬し、
乾燥する。[Example 1] Silica flour (Joetsu Denko Kogyo) 120 parts by weight Water glass (sodium silicate No. 1) 100 Slaked lime saturated solution 10 Borax saturated solution 10 Potash alum saturated solution 10 Mix the above raw materials, The mixture is kneaded uniformly to form a sticky, highly viscous material, which is then pelletized into particles with a particle size of 2 m/m and fired at 200 to 400° C. for 5 minutes in a high frequency heating furnace (output 600 W). Then, it is fired in a rotary kiln at 600°C for 10 minutes. After this, it is immersed in a saturated magnesium silicofluoride solution,
dry.
焼成物は粒径5m／ｍ、比重0.3〜0.4、圧縮強度
23.2Kg／cm2であつた。この粒子を煮沸水で30分間
抽出し、溶出アルカリ量を測定したところ0.01％
であつた。 The fired product has a particle size of 5 m/m, a specific gravity of 0.3 to 0.4, and a compressive strength.
It was 23.2Kg/ cm2 . The particles were extracted with boiled water for 30 minutes, and the amount of alkali eluted was 0.01%.
It was hot.
〔実施例 ２〕
シリカフラワー（上越電炉工業） 100重量部
水ガラス（ケイ酸ソーダ１号） 100 〃
消石灰飽和溶液 10 〃
メタホウ砂飽和溶液 10 〃
リン酸アルミニユーム飽和溶液 10 〃
以上を実施例１と同様に粒径2m／ｍの粒状に
ペレツト化し、高周波加熱炉（出力600W）中で
約５分間焼成し、ついでロータリーキルンにて
600℃、５分間焼成した。このあとケイ弗化マグ
ネシウム飽和溶液中に浸漬し風乾する。[Example 2] Silica flower (Joetsu Denko Kogyo) 100 parts by weight Water glass (sodium silicate No. 1) 100 Slaked lime saturated solution 10 Metaborax saturated solution 10 Aluminum phosphate saturated solution 10 The above is the same as Example 1 Similarly, it was pelletized into particles with a particle size of 2m/m, fired in a high frequency heating furnace (output 600W) for about 5 minutes, and then in a rotary kiln.
It was baked at 600°C for 5 minutes. After that, it is immersed in a saturated magnesium silicofluoride solution and air-dried.
焼成物は粒径5m／ｍ、比重0.3〜0.4、圧縮強度
20.1Kg／cm2であつた。 The fired product has a particle size of 5 m/m, a specific gravity of 0.3 to 0.4, and a compressive strength.
It was 20.1Kg/ cm2 .
この粒子を実施例１と同一条件にもとづく水溶
出アルカリ量は0.01％であつた。 The amount of alkali eluted in water was 0.01% when these particles were subjected to the same conditions as in Example 1.
〔実施例 ３〕
フエロシリコンダスト（商品名シリカフラワ
ー）50部と50％苛性ソーダ溶液20部を混合し、ポ
テイターにて常温において十数分反応させ反応生
成物を作る。[Example 3] 50 parts of ferrosilicon dust (trade name: Silica Flower) and 20 parts of 50% caustic soda solution are mixed and reacted in a potator at room temperature for more than 10 minutes to produce a reaction product.
反応生成物 70重量部
ホウ砂飽和溶液 ５ 〃
リン酸カリ飽和溶液 ５ 〃
カリ明ばん飽和溶液 ５ 〃
上記原料を混合した液を撹拌すると、粘ちうな
もち状物がえられる。 Reaction product 70 parts by weight Borax saturated solution 5 Potassium phosphate saturated solution 5 Potassium alum saturated solution 5 When the mixture of the above raw materials is stirred, a sticky sticky substance is obtained.
このあと実施例２と同様の処理を施して焼成し
たのち、ケイ弗化カルシウム飽和溶液中に浸漬し
乾燥した。 Thereafter, it was subjected to the same treatment as in Example 2 and fired, and then immersed in a saturated calcium fluorosilicate solution and dried.
えられた骨材は比重0.2、圧縮強度３Kg／cm2、
沸騰水30分後における溶出アルカリ量は0.01％で
あつた。 The obtained aggregate has a specific gravity of 0.2, a compressive strength of 3Kg/cm 2 ,
The amount of alkali eluted after 30 minutes of boiling water was 0.01%.
Claims (1)
ト及びケイ酸アルカリ又は強アルカリ物質を主材
とし、これに副材料として、カリ明ばん、消石灰
及びホウ酸アルカリ、アルミン酸ソーダ、水酸化
アルミ、ベントナイト並びにリン酸塩のうち、１
種又は２種以上の溶液を加えこれらを混練してな
る高粘性混練物をペレツト化した後、高周波加熱
により１次加熱発泡させ、ついで焼結炉で２次加
熱発泡させたのち、その外表面にケイ弗化物の溶
液を含浸させてなることを特徴とする無機軽量骨
材。1 The main materials are ferroalloy dust such as ferrosilicon dust and alkali silicate or strong alkali substances, and as subsidiary materials, potassium alum, slaked lime, alkali borate, sodium aluminate, aluminum hydroxide, bentonite and Of phosphates, 1
A highly viscous kneaded product obtained by adding seeds or two or more solutions and kneading them is pelletized, firstly heated and foamed by high frequency heating, then secondarily heated and foamed in a sintering furnace, and then the outer surface is An inorganic lightweight aggregate characterized by being impregnated with a solution of silicofluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15423978A JPS5585455A (en) | 1978-12-15 | 1978-12-15 | Inorganic light weight aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15423978A JPS5585455A (en) | 1978-12-15 | 1978-12-15 | Inorganic light weight aggregate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5585455A JPS5585455A (en) | 1980-06-27 |
| JPS6150896B2 true JPS6150896B2 (en) | 1986-11-06 |
Family
ID=15579875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15423978A Granted JPS5585455A (en) | 1978-12-15 | 1978-12-15 | Inorganic light weight aggregate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5585455A (en) |
-
1978
- 1978-12-15 JP JP15423978A patent/JPS5585455A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5585455A (en) | 1980-06-27 |
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