JPS60191047A - Manufacture of cement lightweight cured body - Google Patents

Manufacture of cement lightweight cured body

Info

Publication number
JPS60191047A
JPS60191047A JP59047673A JP4767384A JPS60191047A JP S60191047 A JPS60191047 A JP S60191047A JP 59047673 A JP59047673 A JP 59047673A JP 4767384 A JP4767384 A JP 4767384A JP S60191047 A JPS60191047 A JP S60191047A
Authority
JP
Japan
Prior art keywords
cement
hardened
producing
strength
coal ash
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
Application number
JP59047673A
Other languages
Japanese (ja)
Inventor
曽田　孝
赤坂　保
健一 松井
正昭 堀江
茂 石木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP59047673A priority Critical patent/JPS60191047A/en
Publication of JPS60191047A publication Critical patent/JPS60191047A/en
Pending legal-status Critical Current

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
    • 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
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （技術分野） 本発明の硬化体は建築用材料として用いられるセメント
軽量硬化体の製法に関するもので、特に用いられる部位
としては、寂の外壁、繊機、床等である。[Detailed Description of the Invention] (Technical Field) The hardened product of the present invention relates to a method for producing a lightweight hardened cement product used as a building material, and is particularly used in areas such as the exterior walls of buildings, textile machines, and floors. .

（背景技術） 建築用制科としてのセメント硬化体は現在種々商品化さ
れ実用されている。建築用材料としてのセメント硬化体
は、価格が安く、不燃性であるという特徴を持っている
ことから最適ではあるが、一方重くて取シ扱いにくいと
いう欠点を有している。そこで従来よ如これを軽くする
為に、種々こころみがなされ成功して現在商品化されて
いるものも沢山ある。たとえば賦形時に起泡剤を入れた
ＡＬＯ、また、パーライト等の軽量骨材を入れて賦形し
たもの、また、補強材として、比重の幹い木片を入れた
木片セメント板、また抄造法で抄き上げ、多くの水を残
したまま賦形して、後工程の乾燥によシ水を逃がして軽
くしたもの等あるが、いずれも生産性、性能面（強度、
耐久性）に一長一短があり、まだまだ改良の余地を残し
ている。(Background Art) Currently, various types of hardened cement for construction are commercialized and put into practical use. Hardened cement is ideal as a building material because it is inexpensive and nonflammable, but it has the disadvantage of being heavy and difficult to handle. Therefore, various attempts have been made to make it lighter than ever before, and many have been successfully commercialized. For example, ALO with foaming agent added during shaping, lightweight aggregate such as perlite added, wood chip cement board with wood chips with a high specific gravity added as a reinforcing material, and paper-making method. There are some types of paper that are made lighter and made by molding them with a lot of water left in them, and allowing the water to escape during the drying process in the post-process, but all of them have problems in terms of productivity and performance (strength, strength, etc.).
There are advantages and disadvantages in terms of durability (durability), and there is still room for improvement.

石炭灰の粒径の小さいものすなわちフライアッシュをセ
メントと混合して用いることも従来よシ行われているが
、従来はセメント硬化体を軽くするという目的でなく、
原材料のコストダウン、あるいは長期強度の増進という
目的で行なわれていた為、用いられる粒度も小さいもの
で、比表面積２．４００ｃＩｎ２／ｙ以上のものであっ
た。It has been conventional practice to mix coal ash with small particle size, namely fly ash, with cement, but this was not done for the purpose of making the hardened cement material lighter;
Since this was done for the purpose of reducing the cost of raw materials or increasing long-term strength, the particle size used was also small, with a specific surface area of 2.400 cIn2/y or more.

（発明の目的） 現在、火力発電所から出る石炭灰は風ふるい法によりふ
るい分けを行ない粒度の小さい部分と大きい部分に分け
られ、小さい部分はフライアッシュとしてフライアッシ
ュセメントの原料として用いられているが、粒度の大き
い部分は、はとんど現在利用されておらず廃棄されてい
るのが実情である。この値も石炭灰の４０％も占める程
多く、有効利用をと種々検討されて、きたが、未だ、こ
れといった用途がみつかっていない。フライアッシュは
球形のものを多く含んでいて、比表面積の小さいもの程
、見掛比重が軽いということと、セメントと反応性があ
り、セメントとの付着力が大きいという特徴を持つ。そ
こで本発明者等はこの特徴を有効に活用するのに、従来
と違った石炭灰セメント硬化体を考えついたのである。(Purpose of the invention) Currently, coal ash produced from thermal power plants is sifted using the wind sieving method and separated into small and large particles, and the small particles are used as fly ash as a raw material for fly ash cement. The reality is that the large-grained portions are currently not being used and are being discarded. This value is so high that it accounts for 40% of coal ash, and although various studies have been conducted to effectively utilize it, no specific use has yet been found. Fly ash contains many spherical particles, and the smaller the specific surface area, the lighter the apparent specific gravity, the more reactive it is with cement, and the greater its adhesion to cement. Therefore, in order to effectively utilize this feature, the present inventors came up with a hardened coal ash cement body that is different from the conventional ones.

すなわち本発明の目的は、 （イ）見掛比重の軽い比表面積の小さい石炭灰を用いる
ことにより、軽量高強度なセメント硬化体をつくること
。That is, the purpose of the present invention is: (a) To produce a lightweight, high-strength hardened cement body by using coal ash with a light apparent specific gravity and a small specific surface area.

（ロ）石炭灰の球状であるのを利用して、混合水量が少
なくても流動性を良くして、賦形し易い材料とし、どん
な賦形法にも適用できるセメント硬化体の製法をうろこ
と である。(b) Utilizing the spherical shape of coal ash, it has good fluidity even when mixed with a small amount of water, making it an easy-to-shape material, and developing a method for producing hardened cement that can be applied to any shaping method. That is.

（発明の開示） 上記の目的を達成するため、本発明は普通ポルトランド
セメントに、比表面積１．Ｔｏｏ（Ｍｚ／ｆ以下の石炭
灰３０乃至８０重量％とフィラーを混合、水で混練賦形
して成るセメントＩｆｉ量硬化体の製法を発明の要旨と
するものである。(Disclosure of the Invention) In order to achieve the above object, the present invention provides a method of applying ordinary portland cement to ordinary portland cement with a specific surface area of 1. The gist of the invention is a method for producing a hardened cement material by mixing 30 to 80% by weight of coal ash (Mz/f or less) with a filler, kneading and shaping the mixture with water.

次に本発明の詳細な説明する。なお実施例は一つの例示
であって、本発明の精神を逸脱しない範囲で、種々の変
更あるいは改良を行いうろことは云うまでもない。Next, the present invention will be explained in detail. It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements may be made without departing from the spirit of the present invention.

普通ポルトランドセメントに比表面積１７００ｃｍ”／
Ｐ以下の石炭灰３０〜８０重ｆｉｔｓ加えて、水で混線
、賦形養生した硬化体は、従来の普通ポルトランドセメ
ント硬化体、あるいはスラグセメント硬化体に比べ１脅
・が約２〜３割軽くなる。比重で示すと、従来品が２．
１〜１．８であったのに比べ１．５〜１．３と低いもの
を得ることができる。これは建築用材料の取り扱いｔ＋
を容易にする上で極めて大きな特徴となるものである。Specific surface area 1700 cm for ordinary Portland cement/
The hardened material, which is made by adding 30 to 80 weight coal ash fits below P, mixed with water, and shaped and cured, is approximately 20 to 30% lighter than conventional ordinary portland cement hardened material or slag cement hardened material. Become. In terms of specific gravity, the conventional product is 2.
Compared to the previous value of 1 to 1.8, a lower value of 1.5 to 1.3 can be obtained. This is the handling of building materials t+
This is an extremely important feature in making it easier.

しかも石炭灰がセメントと反応性を有していることから
、他の骨材を用いた場合よシ高強度な硬化体を得ること
ができる。また、原材料の流動性も改良され、少ない混
合水量すなわち原料固形分１００重量部に対し、水１５
〜３０重量部の水で混線でき、又一般の低圧での賦形も
可能となる。本発明で用いる石炭灰は比表面積１　ｔ　
７００　ｃｍ”／Ｐ以下のものであシ、それよシ大きい
ものは硬化体の＠量化硬化が十分でなく、好ましくない
。石炭の焼成温度は出来るだけ高い方が、石炭灰の球形
が大きくなり比表面積が小さくなるので好ましいのであ
るが、炉内への溶融物の付着、有毒ガスの発生等もある
のであまり高くすることは不可能であるので、１３００
〜１４００°Ｃが好ましい。石炭灰の配合割合は、でき
るだけ多い方が好ましいのではあるが、８０重量％を超
えると、セメント分が不足しバインダー効果が低下して
急激な強度低下がみられるため、上限は８０重ｉ％であ
る。又、下限は少しでも入れれば軽量高強度化にはつな
がるが、３０％以下では、これを用いないものと大きな
品質の差が認められない為、下限は３０重量％である。Moreover, since coal ash is reactive with cement, it is possible to obtain a hardened material with higher strength than when other aggregates are used. In addition, the fluidity of the raw material has been improved, and the amount of water mixed is small, that is, 15 parts of water per 100 parts by weight of raw material solids.
It can be cross-wired with up to 30 parts by weight of water, and it can also be shaped under general low pressure. The coal ash used in the present invention has a specific surface area of 1 t.
It should be less than 700 cm"/P. If it is larger than that, the hardening of the hardened material will not be sufficient and it is not preferable. The higher the coal firing temperature is, the larger the spherical shape of the coal ash will be. It is preferable because the specific surface area becomes small, but it is impossible to make it too high because of the adhesion of molten matter to the furnace and the generation of toxic gas, so 1300
~1400°C is preferred. It is preferable to mix as much coal ash as possible, but if it exceeds 80% by weight, the cement content will be insufficient and the binder effect will decrease, resulting in a rapid decrease in strength, so the upper limit is 80% by weight. It is. Also, the lower limit is 30% by weight because if it is included even a little, it will lead to lighter weight and higher strength, but if it is less than 30%, there will not be a big difference in quality compared to the product without it.

本配合賦形体の養生は常温でも良いが、石炭灰とセメン
トとの反応速度が遅いので好ましくは加熱養生をするの
が良い。加熱養生の方法としては一般的に行なわれてい
る湿熱養生あるいはオートクレープ養生が良いが、オー
トクレーブ養生の場合設備に大きな費用が必要となるの
で、経済性も考え合わせると７０〜１００°Ｃの湿熱養
生が最も好ましい。The present composite excipient may be cured at room temperature, but since the reaction rate between coal ash and cement is slow, heat curing is preferably used. Moist heat curing or autoclave curing, which are commonly used, are good methods for heat curing, but autoclave curing requires a large amount of equipment, so considering economic efficiency, moist heat at 70 to 100°C is recommended. Curing is most preferred.

前記製法による硬化体の比重が１．５〜１．３であるの
で目的によってはもつと軽くする必要がある。Since the specific gravity of the cured product produced by the above manufacturing method is 1.5 to 1.3, it is necessary to reduce the weight depending on the purpose.

その場合は、従来からあるパーライト等の＠量化材をフ
ィラーの一部として入れて用いると従来のパーライトセ
メント板等よシ、強度面、耐久性の面で一段優れた製品
を得ることが可能となる。従来から用いられている軽量
化材は、吸水性が大きく、又セメントとの付着力も弱く
又それ自体の強度も弱いという欠点を有しているものは
かシで、硬化体の比重を動くする為には、多くの量を配
合してやることが必要であったが、多く用いれば用いる
程硬化体の強度は低下し、吸水率は大きくなり、実用に
際しては寸法変化が大きく、りるい易い、またｉ＝１凍
害性に弱いといった欠点のあるものしか得られなかった
。そこで比表面積１’１ＱＯ６ｙｔ／１１以下の石炭灰
の入った系に、これらの軽量化材を用いれば、ベースの
比重が低いので配合量が少なくてすみ、それだけ性能も
保持できるのである。In that case, if you use a conventional quantified material such as perlite as part of the filler, you can obtain a product that is even better in terms of strength and durability than conventional perlite cement boards. Become. The conventionally used lightweight materials have the disadvantages of high water absorption, weak adhesion to cement, and weak strength themselves. In order to do this, it was necessary to mix a large amount, but the more it was used, the lower the strength of the cured product, the higher the water absorption rate, and in practical use, the dimensional change was large and it was easy to peel. In addition, only products with i=1 defects such as weak resistance to frost damage were obtained. Therefore, if these lightweight materials are used in a system containing coal ash with a specific surface area of 1'1QO6yt/11 or less, the specific gravity of the base is low, so the amount to be blended can be reduced, and the performance can be maintained accordingly.

具体的にはパージイトだけで比１１．０の硬化体を得よ
うとすれば、パーライトを約５０重量％配合する必要が
あるが、本発明の糸では約２０重量係入れるだけで硬化
体比Ｍ　１．０を達成できるものである。Specifically, if you want to obtain a cured product with a ratio of 11.0 using only pearlite, it is necessary to incorporate about 50% by weight of pearlite, but with the yarn of the present invention, the cured product ratio M can be achieved by adding only about 20% by weight of pearlite. 1.0 can be achieved.

更に高強度な製品を得ようとする場合、セメントバイン
ダ一部の密度を上げる方法がある。一般的には、できる
だけ少ない混合水量とし、高圧で賦形する方法がとられ
るが、その方法は作業能率の低下、　ＩＭｉ化材の破壊
といった欠点が生ずるので、かならずしも実用上好まし
い方法とはいえない。一般的にセメントの平均粒子径は
２５〜３０μｍといわれているが、その粒子と粒子の間
を更に粒径の小さいセメントでうめれば密度の向上は可
能であるとの見地よシ、柚々セメント粒子の組み合せを
検討した結果、平均粒子径１０μｍ以下のセメントをセ
メント分の１０〜３０重ｆｔ％加えることにより高強度
化が図れることを確認したのである。In order to obtain a product with even higher strength, there is a method of increasing the density of a portion of the cement binder. Generally, a method is used in which the amount of mixed water is as small as possible and the material is shaped under high pressure, but this method has disadvantages such as a decrease in work efficiency and destruction of the IMi material, so it cannot necessarily be said to be a practically preferable method. . Generally, the average particle size of cement is said to be 25 to 30 μm, but from the viewpoint that it is possible to improve the density by filling the spaces between the particles with cement with a smaller particle size, Yuzu As a result of examining the combination of cement particles, it was confirmed that high strength could be achieved by adding 10 to 30 ft% of cement with an average particle diameter of 10 μm or less.

その効果は硬化体の曲げ強度で約ｌθ〜２０チ向上する
という結果が得られた。The effect was that the bending strength of the cured product was improved by about lθ to 20 degrees.

セメント粒子間の空隙、セメントと石炭灰、フィラーと
の間の空隙をうめる目的で、フィシ−の一部に粒径１μ
ｍ以下の７リカヒユームを用いると、更に強度の向上が
図れるばかりでなく、セメント硬化時に析出してくる遊
離アルカリとシリカヒユームが反応してこれを固定して
しまう為、通称エフロ現象と呼はれる白化現象の発生し
ない硬化体を得ることも可能となった。シリカヒユーム
の配合量は目的に応じ自由に選べばよいが上記目的の為
には、全固形分中の５〜２０重量％加えるのがよく、少
ないと効果不充分で、多いとかえって強度低下をきたす
ととＫなる。In order to fill the voids between cement particles and the voids between cement, coal ash, and filler, a part of the fissure is coated with a grain size of 1 μm.
Using silica hume of 7m or less not only improves the strength further, but also prevents whitening, commonly known as the Eflo phenomenon, because the free alkali that precipitates during cement hardening reacts with the silica hume and fixes it. It has also become possible to obtain a cured product that does not cause any phenomena. The amount of silica hume can be freely selected depending on the purpose, but for the above purpose, it is recommended to add 5 to 20% by weight of the total solid content; if it is too little, the effect will be insufficient, and if it is too much, the strength will actually decrease. TotoK becomes.

更に曲げ、衡撃強度等を強くしたい目的の場合は補強繊
維を混入すれば良い。補強繊維として好ましいのは、セ
メントとの付着力においてすぐれているものを選ぶのが
良い。付着力に於て優れているものとしては、バルブ、
ビニロン、アクＩＪル、スチールファイバー、ウオラス
トナイト、ロックウールが好ましく、その繊維長、径、
配合量はそれぞれ目的に応じ自由に選定すれば良いが、
一般的にはパルプ、ウオラストナイト、ロックウールの
場合、３〜７１量チ、その他の繊維の場合０．５〜３％
加えるのが良い。これらの補強繊維を入れることによ）
、硬化体の曲は強度で入れ々い場合に比べ１．５〜５倍
の強度が得られ、また衝撃強度においても１．５〜１０
倍の硬化体が得られた。この補強効果は一般的なセメン
トと＊Ｕの系に補強繊維を入れたものより大である。こ
の原因として考えられるのは、セメントと石炭灰の反応
生成物が繊維の周囲を更に緻密にする為、繊維の引き抜
き耐力が上がる為と考えられる。If the purpose is to further increase the bending and impact strength, reinforcing fibers may be mixed. It is preferable to select reinforcing fibers that have excellent adhesion to cement. Items with excellent adhesion include valves,
Vinylon, Acrylic IJ, steel fiber, wollastonite, and rock wool are preferred; their fiber length, diameter,
The amount of each compound can be selected freely depending on the purpose, but
Generally, in the case of pulp, wollastonite, and rock wool, the amount is 3 to 71%, and in the case of other fibers, it is 0.5 to 3%.
Good to add. By adding these reinforcing fibers)
The bending strength of the cured product is 1.5 to 5 times higher than that of the curved material, and the impact strength is also 1.5 to 10 times higher.
A hardened product twice as large was obtained. This reinforcing effect is greater than when reinforcing fibers are added to the general cement and *U system. A possible reason for this is that the reaction product between cement and coal ash makes the surroundings of the fibers more dense, which increases the pull-out strength of the fibers.

上記に説明した実施例及び比較例についての配合及び物
性については第１表に示すとおシである。The formulations and physical properties of the Examples and Comparative Examples described above are shown in Table 1.

尚前記の普通のポルトランドセメントの一部を平均粒径
１０μｍ以下の微粒子セメントに置きかえることもでき
る。Incidentally, a part of the above-mentioned ordinary Portland cement may be replaced with fine particle cement having an average particle size of 10 μm or less.

（ニス下Ａ蕾ｆ３） （発明の効果） 本発明によれば比表面積１７００ｃｒｎ”／ｊ’以下の
石炭灰とセメントで硬化体をつくることにより、従来品
よシ＠量で比強度の高い無機質建築用板をつくることが
可能になった。また本発明の方法でつくった硬化体は、
強度が強いはかシでなく、吸水率も小さく、従って寸法
安定性、耐凍害性の優れた建築用板である。賦形時の材
料の流動性も良い為、混合水量を少なくして高強度化も
図れるし、また賦形圧力、賦形時間も小さくて済み経済
的にも好ましい。また、従来産業廃葉物としてすててい
た物を大量に有効に利用できるめどがたったものである
。(A bud f3 under varnish) (Effect of the invention) According to the present invention, by making a hardened body from coal ash and cement with a specific surface area of 1700 crn"/j' or less, an inorganic material with a higher specific strength than conventional products can be produced. It has become possible to make architectural boards.Also, the cured product made by the method of the present invention is
It is a construction board that is not very strong, has low water absorption, and has excellent dimensional stability and frost resistance. Since the material has good fluidity during shaping, high strength can be achieved by reducing the amount of mixed water, and the shaping pressure and shaping time are also small, which is economically preferable. In addition, there is a good chance that a large amount of materials that were conventionally discarded as industrial waste can be put to effective use.

特許出願人patent applicant

Claims (5)

【特許請求の範囲】[Claims] （１）普通ポルトランドセメントに、比表面積１，７０
０ｃｍ２／Ｐ以下の石炭灰３０乃至８０重量％とフィラ
ーを混合、水で混練賦形して成るセメント軽量硬化体の
製法。(1) Ordinary Portland cement has a specific surface area of 1.70
A method for producing a lightweight hardened cement material by mixing 30 to 80% by weight of coal ash of 0 cm2/P or less and a filler, kneading and shaping the mixture with water. （２）フィラーの一部をパーライト等の＠量化材を用い
てなる特許請求の範囲第１ｍ記載のセメン）＆知硬化体
の製法。(2) A method for producing a cement and intellectually hardened body according to claim 1m, in which a part of the filler is a quantified material such as perlite. （３）普通ポルトランドセメントの一部を平均粒径１０
μｍ以下の倣粒子セメントに置きかえてなる特許請求の
範囲第１項または第２項記載のセメント軽量硬化体の製
法。(3) A portion of ordinary Portland cement with an average particle size of 10
3. A method for producing a lightweight hardened cement body according to claim 1 or 2, wherein the cement particles are replaced with cement particles having a size of .mu.m or less. （４）　フィラーの一部にシリカヒユームを用いてなる
第１項または第２項または第３項記載のセメント軽量硬
化体の製法。(4) The method for producing a lightweight hardened cement body according to item 1, item 2, or item 3, which uses silica hume as a part of the filler. （５）補強繊維として有機又は無機質繊維を混入して賦
形した特許請求の範囲第１項または第２項または第３項
または第４項記載のセメント軽量硬化体の製法。(5) A method for producing a lightweight hardened cement body according to claim 1 or 2 or 3 or 4, which is formed by mixing organic or inorganic fibers as reinforcing fibers.
JP59047673A 1984-03-13 1984-03-13 Manufacture of cement lightweight cured body Pending JPS60191047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59047673A JPS60191047A (en) 1984-03-13 1984-03-13 Manufacture of cement lightweight cured body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59047673A JPS60191047A (en) 1984-03-13 1984-03-13 Manufacture of cement lightweight cured body

Publications (1)

Publication Number Publication Date
JPS60191047A true JPS60191047A (en) 1985-09-28

Family

ID=12781785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59047673A Pending JPS60191047A (en) 1984-03-13 1984-03-13 Manufacture of cement lightweight cured body

Country Status (1)

Country Link
JP (1) JPS60191047A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63236781A (en) * 1987-03-26 1988-10-03 松下電工株式会社 Manufacture of inorganic hardened body
JPS6424058A (en) * 1987-07-16 1989-01-26 Tohoku Electric Power Co Vegetable fiber-containing coal ash sand
JPH01141858A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Cement composition
JPH01141859A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Cement composition
JPH01141855A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Production of cement molded body
JPH01141856A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Production of cement molded body
JPH01320241A (en) * 1988-06-22 1989-12-26 Sekisui Chem Co Ltd Cement composition

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63236781A (en) * 1987-03-26 1988-10-03 松下電工株式会社 Manufacture of inorganic hardened body
JPH068229B2 (en) * 1987-03-26 1994-02-02 松下電工株式会社 Method for producing cured inorganic material
JPS6424058A (en) * 1987-07-16 1989-01-26 Tohoku Electric Power Co Vegetable fiber-containing coal ash sand
JPH0251861B2 (en) * 1987-07-16 1990-11-08 Tohoku Electric Power Co
JPH01141858A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Cement composition
JPH01141859A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Cement composition
JPH01141855A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Production of cement molded body
JPH01141856A (en) * 1987-11-26 1989-06-02 Sekisui Chem Co Ltd Production of cement molded body
JPH01320241A (en) * 1988-06-22 1989-12-26 Sekisui Chem Co Ltd Cement composition

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