JPH07109165A - Production of hardening material by fiber reinforced cement - Google Patents
Production of hardening material by fiber reinforced cementInfo
- Publication number
- JPH07109165A JPH07109165A JP25859693A JP25859693A JPH07109165A JP H07109165 A JPH07109165 A JP H07109165A JP 25859693 A JP25859693 A JP 25859693A JP 25859693 A JP25859693 A JP 25859693A JP H07109165 A JPH07109165 A JP H07109165A
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- fiber
- waste paper
- reinforced cement
- reinforcing
- 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
- 239000004568 cement Substances 0.000 title claims abstract description 43
- 239000000835 fiber Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 title claims abstract description 16
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 53
- 239000010893 paper waste Substances 0.000 claims abstract description 53
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 238000013329 compounding Methods 0.000 claims abstract description 8
- 229920000742 Cotton Polymers 0.000 claims description 4
- 235000013361 beverage Nutrition 0.000 claims description 4
- 239000008267 milk Substances 0.000 claims description 4
- 210000004080 milk Anatomy 0.000 claims description 4
- 235000013336 milk Nutrition 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 230000008929 regeneration Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 22
- 238000004061 bleaching Methods 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 7
- 239000000654 additive Substances 0.000 description 6
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 6
- 229960002218 sodium chlorite Drugs 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000010897 cardboard waste Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 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
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/241—Paper, e.g. waste paper; Paper pulp
-
- 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
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/241—Paper, e.g. waste paper; Paper pulp
- C04B18/243—Waste from paper processing or recycling paper, e.g. de-inking sludge
-
- 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)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Producing Shaped Articles From Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築用板などとして使
用される繊維補強セメント硬化体の製造方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a fiber-reinforced cement cured product used as a building board or the like.
【０００２】[0002]
【従来の技術】セメントを主原料とした無機質硬化製品
の補強繊維として、従来から一般にパルプが使用されて
いる。このパルプは大半が木材チップから生産したＮＵ
ＫＰやＬＵＫＰなどのバージンパルプであるが、森林資
源の保護や資源のリサイクル活用の動きから、パルプの
一部はダンボール等を再生処理した古紙パルプが使用さ
れている。2. Description of the Related Art Pulp has been generally used as a reinforcing fiber for an inorganic hardened product mainly made of cement. Most of this pulp is NU produced from wood chips
Although virgin pulp such as KP and LUKP is used, a part of the pulp is recycled pulp made from recycled cardboard or the like due to the movement of forest resource protection and resource recycling.
【０００３】再生処理パルプの代表として上記のような
ダンボール古紙パルプがあるが、多くの再生処理パルプ
は一度紙になったものであり、紙力を持たせるために叩
解されており、また紙の用途に応じて各種の添加物が使
用されているために再生処理しても不純物として残って
いる。The above-mentioned cardboard waste paper pulp is a typical example of the recycled pulp, but many recycled pulps are once made into paper and are beaten to give paper strength. Since various additives are used depending on the application, they remain as impurities even after the regeneration treatment.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記のように
叩解がされている再生パルプは濾水性が悪くなり、この
ような再生パルプをセメントに配合してスラリー状に調
製した配合材を丸網抄造法や長網抄造法において賦形を
おこなう場合、生産スピードが大きく低下するという問
題があった。また上記のように各種の添加物が不純物と
して再生パルプに含有されていると、抄造工程中で発泡
が生じたり、セメントの硬化阻害が生じたりするなどの
生産トラブルが起こるおそれがあり、さらにセメント硬
化体の物性を確保することもできないという問題があっ
た。However, the recycled pulp that has been beaten as described above has poor drainage performance, and a blended material prepared by mixing such recycled pulp with cement to prepare a slurry is used as a round net. When performing shaping in the papermaking method or the Fourdrinier papermaking method, there is a problem that the production speed is significantly reduced. Further, as described above, when various additives are contained in the recycled pulp as impurities, foaming may occur during the papermaking process, or production problems such as hardening inhibition of cement may occur, and further cement There is a problem that the physical properties of the cured product cannot be secured.
【０００５】本発明は上記の点に鑑みてなされたもので
あり、抄造による生産スピードを低下させることなく、
また生産トラブルが発生することなく、さらに物性を低
下させることなく製造をおこなうことができる繊維補強
セメント硬化体の製造方法を提供することを目的とする
ものである。The present invention has been made in view of the above points, and does not reduce the production speed by papermaking,
It is another object of the present invention to provide a method for producing a fiber-reinforced cement cured product that can be produced without causing production troubles and further without lowering physical properties.
【０００６】[0006]
【課題を解決するための手段】本発明に係る繊維補強セ
メント硬化体の製造方法は、セメントを主成分とし骨材
及び補強用パルプ繊維を配合した配合材を抄造して繊維
補強セメント硬化体を製造するにあたって、上記補強用
パルプ繊維としてカナディアンフリーネスが６５０ｃｓ
ｆ以上である再生処理した晒古紙パルプを使用すること
を特徴とするものである。A method for producing a fiber-reinforced cement hardened body according to the present invention is to produce a fiber-reinforced cement hardened body by paper-making a compounded material containing cement as a main component and an aggregate and a reinforcing pulp fiber. In manufacturing, the above-mentioned reinforcing pulp fiber has a Canadian freeness of 650 cs.
It is characterized in that a recycled bleached waste paper pulp having a value of f or more is used.
【０００７】本発明にあって、補強用パルプ繊維とし
て、タオルや下着のような綿製品の晒古紙パルプ、紙お
むつの晒古紙パルプ、紙コップの晒古紙パルプ、牛乳等
の飲料物の紙パックの晒古紙パルプを使用することがで
きる。また本発明にあって、抄造を長網式抄造機を用い
ておこなうことができる。以下、本発明を詳細に説明す
る。セメントとしては早強セメントや高炉セメントなど
任意のものを用いることができるものであり、また骨材
としては珪砂や珪石、フライアッシュ、マイカ、炭酸カ
ルシウムなど任意のものを用いることができる。そして
セメントを主成分とし、骨材や補強用パルプ繊維を配合
して、これらを水に分散させることによってスラリー状
の配合材を調製することができるものである。In the present invention, as reinforcing pulp fibers, bleached waste paper pulp for cotton products such as towels and underwear, bleached waste paper pulp for paper diapers, bleached waste paper pulp for paper cups, and paper packs for beverages such as milk are used. Bleached waste paper pulp can be used. Further, in the present invention, papermaking can be performed using a Fourdrinier papermaking machine. Hereinafter, the present invention will be described in detail. Any cement such as early-strength cement or blast furnace cement can be used, and any aggregate such as silica sand, silica stone, fly ash, mica, calcium carbonate can be used as the aggregate. Then, a cement-based main component is mixed with an aggregate and a reinforcing pulp fiber, and these are dispersed in water to prepare a slurry-shaped compounding material.
【０００８】この補強用パルプ繊維としては針葉樹及び
広葉樹の晒あるいは未晒のクラフトパルプ、麻など特に
制限されるものではなく、その他ビニロンやポリエチレ
ン等の有機繊維を使用することもできるが、本発明では
補強用パルプ繊維の一部としてあるいはこれらに替えて
補強パルプ繊維の全部として、産業廃棄物の再生処理古
紙パルプを用いるようにしている。The reinforcing pulp fiber is not particularly limited, such as bleached or unbleached kraft pulp of softwood and hardwood, hemp, and other organic fibers such as vinylon and polyethylene can be used. Then, as a part of the reinforcing pulp fiber or in place of these, as a whole of the reinforcing pulp fiber, recycled waste paper pulp of industrial waste is used.
【０００９】この再生処理古紙パルプとしては、カナデ
ィアンフリーネスが６５０ｃｓｆ以上の濾水度を有する
ものを用いるものであり、さらに晒処理して精錬漂白状
態の晒古紙パルプを用いるものである。カナディアンフ
リーネスが６５０ｃｓｆ以上の濾水度を有するものを用
いることによって、抄造の際の濾水性を高く保持するこ
とができるものであり、また晒処理した晒古紙パルプ
は、古紙に含まれている各種の添加剤が除去されて不純
物を少なくした状態で使用することができるものであ
る。晒処理は亜塩素酸ソーダや過酸化水素などの漂白剤
を用いておこなうことができるものであり、この晒処理
は再生処理をおこなう前でも後でもいずれでもよい。ま
た晒処理はパルプのリグニンやヘミセルロースが零に近
くなるようにおこなうのが好ましい。補強用パルプ繊維
の晒古紙パルプの使用量は限定されるものではなく、目
標とする抄造性や物性に応じて混合比を設定すればよ
い。As the recycled waste paper pulp, one having a freeness of 650 csf or more in Canadian freeness is used, and bleached waste paper pulp in a refined and bleached state after further bleaching treatment is used. By using a Canadian freeness having a freeness of 650 csf or more, it is possible to maintain a high drainage at the time of papermaking, and the bleached waste paper pulp subjected to the bleaching treatment contains various kinds of waste paper. The additive can be used in a state where impurities are reduced by removing the additive. The bleaching treatment can be performed using a bleaching agent such as sodium chlorite and hydrogen peroxide, and this bleaching treatment may be performed before or after the regeneration treatment. The bleaching treatment is preferably performed so that the lignin and hemicellulose of the pulp are close to zero. The amount of the bleached waste paper pulp used as the reinforcing pulp fiber is not limited, and the mixing ratio may be set according to the target papermaking properties and physical properties.
【００１０】上記のような晒古紙パルプとしては、タオ
ルや下着のような綿製品の晒古紙パルプ、紙おむつの晒
古紙パルプ、紙コップの晒古紙パルプ、牛乳等の飲料物
の紙パックの晒古紙パルプを使用することができる。綿
製品の晒古紙パルプとしては繊維長を５ｍｍ以下にカッ
トしたものが望ましい。また紙おむつには吸水性ポリマ
ーが含有されているものがあるので、この場合には吸水
性ポリマーを除去して晒古紙パルプとして使用するのが
よい。吸水性ポリマーを除去するには、パルプを離解
し、大量の水で洗って抄紙することによるのが好まし
い。さらに、紙コップの晒古紙パルプの場合には、再生
処理品の不純物はできるだけ除去したものを用いるのが
望ましい。飲料物の紙パックの晒古紙パルプの場合も同
様である。The bleached waste paper pulp as described above includes bleached waste paper pulp for cotton products such as towels and underwear, bleached waste paper pulp for diapers, bleached waste paper pulp for paper cups, and bleached waste paper for beverages such as milk. Pulp can be used. As a bleached waste paper pulp for cotton products, it is desirable to cut the fiber length to 5 mm or less. Further, some paper diapers contain a water-absorbing polymer, and in this case, the water-absorbing polymer is preferably removed and used as bleached waste paper pulp. In order to remove the water-absorbing polymer, it is preferable to disintegrate the pulp, wash with a large amount of water and make paper. Furthermore, in the case of bleached waste paper pulp for paper cups, it is desirable to use the recycled products after removing impurities as much as possible. The same applies to the case of bleached waste paper pulp in paper packs for beverages.
【００１１】上記のように調製されるスラリー状の配合
材を抄造して賦形することによって繊維補強セメント硬
化体を製造することができるが、抄造は丸網（ハチェッ
ク）抄造機や、濾布としてフェルト等を使用する長網抄
造機等を用い、スラリー状の配合材を未硬化のセメント
シート（グリーンシート）に成形して賦形することによ
っておこなうことができる。ここで、晒古紙パルプとし
てカナディアンフリーネスが６５０ｃｓｆ以上の濾水度
のものを用いることによって、バージンパルプを用いる
場合と同等の濾水性を確保することができ、抄造スピー
ドを速くして生産性を高めることができるものである。
また晒処理してあることによって、古紙に含まれている
各種の添加剤が不純物として抄造工程で作用することを
防ぐことができ、抄造工程中で発泡が生じたり、セメン
トの硬化阻害が生じたりするなどの生産トラブルが起こ
ることを防止し、また配合材の濾水の状態も安定して安
定した抄造が可能になると共に、さらに古紙パルプとセ
メントとの密着性を高めて繊維補強セメント硬化体の強
度を向上させることができるものである。A fiber-reinforced cement cured product can be produced by forming and shaping the slurry-like compounding material prepared as described above. This can be performed by molding a slurry-like compounding material into an uncured cement sheet (green sheet) and shaping it using a Fourdrinier paper machine or the like that uses felt or the like as cloth. Here, by using a bleached waste paper pulp having a freeness of 650 csf or more as the Canadian freeness, it is possible to secure the same freeness as in the case of using virgin pulp, thereby increasing the papermaking speed and increasing the productivity. Is something that can be done.
In addition, the bleaching treatment can prevent various additives contained in the waste paper from acting as impurities in the papermaking process, causing foaming in the papermaking process and inhibiting hardening of the cement. It prevents the occurrence of production troubles such as rusting, and also enables stable and stable papermaking of the drainage of the compounding material, and further improves the adhesion between waste paper pulp and cement to improve the fiber-reinforced cement cured product. The strength of can be improved.
【００１２】[0012]
【作用】補強用パルプ繊維としてカナディアンフリーネ
スが６５０ｃｓｆ以上である再生処理した古紙パルプを
使用することによって、濾水性を確保して抄造のスピー
ドを高めることができる。また晒古紙パルプを使用する
ことによって、古紙に含まれている各種の添加剤を晒処
理の際に除去して不純物がないものを使用することがで
きる。By using recycled paper pulp having a Canadian freeness of 650 csf or more as the reinforcing pulp fiber, drainage can be secured and papermaking speed can be increased. Further, by using bleached waste paper pulp, various additives contained in the waste paper can be removed during the bleaching treatment, and the one free from impurities can be used.
【００１３】[0013]
【実施例】次に、本発明を実施例によって例証する。 （実施例１）メリヤス下着の廃棄品を亜塩素酸ソーダで
晒処理し、次にこれをパルパーで湿式離解し、さらにデ
ィスクリファイナーで繊維長さ５ｍｍ以下にカットして
乾燥することによって、晒古紙パルプを得た。この晒古
紙パルプのカナディアンフリーネスは７５０ｃｓｆであ
った。The invention will now be illustrated by the examples. (Example 1) A waste product of knitted underwear is exposed to sodium chlorite, wet disaggregated with a pulper, cut with a disc refiner to have a fiber length of 5 mm or less, and dried to give a bleached waste paper. The pulp was obtained. The Canadian freeness of this bleached waste paper pulp was 750 csf.
【００１４】次に、この晒古紙パルプを水に十分に分散
させた後、この晒古紙パルプが６重量％になるように、
セメント５５重量％、フライアッシュ３０重量％、マイ
カ５重量％、炭酸カルシウム４重量％の配合比率で固形
成分を加水混合し、スラリー状の配合材を調製した。そ
してこのスラリー状の配合材を長網式抄造機で抄造した
後に、脱水プレス成形で厚み１２ｍｍの板を賦形し、一
次養生を室温で８時間おこなった後に、二次養生を６０
℃で８０時間おこない、さらに６０℃で７２時間乾燥す
ることによって、繊維補強セメント硬化体を得た。Next, after the bleached waste paper pulp is sufficiently dispersed in water, the bleached waste paper pulp is adjusted to 6% by weight.
Solid components were hydromixed at a compounding ratio of 55% by weight of cement, 30% by weight of fly ash, 5% by weight of mica, and 4% by weight of calcium carbonate to prepare a slurry-like compounding material. After making the slurry-form compounded material with a Fourdrinier paper machine, a 12 mm-thick plate was formed by dewatering press molding, and primary curing was carried out at room temperature for 8 hours, and then secondary curing was performed.
The fiber-reinforced cement hardened body was obtained by carrying out 80 degreeC for 80 hours, and also by drying at 60 degreeC for 72 hours.
【００１５】（実施例２）紙おむつを乾式で粉砕し、第
１のスクリーンを通してポリ塩化ビニルやゴム等を除去
した後に、さらに第２のスクリーンを通して吸水性ポリ
マーを粗除去し、次にこれを多量の水に分散して吸水性
ポリマーを膨潤させて湿式粉砕し、塩化マグネシウムを
用いて吸水性ポリマーが膨潤しないようにしてスクリー
ンで除去した。この後に抄紙乾燥し、さらに亜塩素酸ソ
ーダで晒処理することによって、晒古紙パルプを得た。
この晒古紙パルプのカナディアンフリーネスは７３０ｃ
ｓｆであった。そしてこの晒古紙パルプを用いて後は実
施例１と同様にして、繊維補強セメント硬化体を得た。(Example 2) A paper diaper was pulverized by a dry method to remove polyvinyl chloride, rubber and the like through a first screen, and then a water absorbing polymer was roughly removed through a second screen. Was dispersed in water to swell the water-absorbent polymer and wet-milled, and the water-absorbent polymer was removed with a screen so as not to swell with magnesium chloride. After this, the paper was dried and further bleached with sodium chlorite to obtain bleached waste paper pulp.
The Canadian freeness of this bleached waste paper pulp is 730c.
It was sf. Then, using this bleached waste paper pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
【００１６】（実施例３）紙コップをパルパーで湿式離
解し、不純物とパルプをスクリーンで分離した後に抄紙
乾燥し、さらに亜塩素酸ソーダで晒処理することによっ
て、晒古紙パルプを得た。この晒古紙パルプのカナディ
アンフリーネスは６７０ｃｓｆであった。そしてこの晒
古紙パルプを用いて後は実施例１と同様にして、繊維補
強セメント硬化体を得た。Example 3 A bleached waste paper pulp was obtained by wet disintegrating a paper cup with a pulper, separating impurities and pulp with a screen, drying the paper, and subjecting it to a bleaching treatment with sodium chlorite. The Canadian freeness of this bleached waste paper pulp was 670 csf. Then, using this bleached waste paper pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
【００１７】（実施例４）補強用パルプ繊維を、実施例
１で得たメリヤス下着の晒古紙パルプを３重量％、ＮＵ
ＫＰバージンパルプを１．５重量％、ＬＵＫＰバージン
パルプを１．５重量％混合して６重量％として用いるよ
うにした。このパルプのカナディアンフリーネスは７１
０ｃｓｆであった。そしてこのパルプを用いて後は実施
例１と同様にして、繊維補強セメント硬化体を得た。(Example 4) 3% by weight of bleached waste paper pulp of knitted underwear obtained in Example 1 was used as a reinforcing pulp fiber, and NU was used.
1.5% by weight of KP virgin pulp and 1.5% by weight of LUKP virgin pulp were mixed to be used as 6% by weight. The Canadian freeness of this pulp is 71
It was 0 csf. Then, using this pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
【００１８】（実施例５）補強用パルプ繊維を、実施例
２で得た紙おむつの晒古紙パルプを１．５重量％、ＮＵ
ＫＰバージンパルプを３重量％、ＬＵＫＰバージンパル
プを１．５重量％混合して６重量％として用いるように
した。このパルプのカナディアンフリーネスは６８０ｃ
ｓｆであった。そしてこのパルプを用いて後は実施例１
と同様にして、繊維補強セメント硬化体を得た。(Example 5) The reinforcing pulp fiber was 1.5% by weight of the bleached waste paper pulp of the paper diaper obtained in Example 2 and NU.
3% by weight of KP virgin pulp and 1.5% by weight of LUKP virgin pulp were mixed to be used as 6% by weight. The Canadian freeness of this pulp is 680c
It was sf. Then, using this pulp, Example 1
A fiber-reinforced cement cured product was obtained in the same manner as in.
【００１９】（実施例６）補強用パルプ繊維を、実施例
３で得た紙コップの晒古紙パルプを１．５重量％、ＮＵ
ＫＰバージンパルプを３重量％、ＬＵＫＰバージンパル
プを１．５重量％混合して６重量％として用いるように
した。このパルプのカナディアンフリーネスは６５０ｃ
ｓｆであった。そしてこのパルプを用いて後は実施例１
と同様にして、繊維補強セメント硬化体を得た。(Example 6) The reinforcing pulp fiber was 1.5% by weight of the bleached waste paper pulp of the paper cup obtained in Example 3 and NU.
3% by weight of KP virgin pulp and 1.5% by weight of LUKP virgin pulp were mixed to be used as 6% by weight. The Canadian freeness of this pulp is 650c
It was sf. Then, using this pulp, Example 1
A fiber-reinforced cement cured product was obtained in the same manner as in.
【００２０】（実施例７）牛乳パックをパルパーで湿式
離解し、不純物とパルプをスクリーンで分離した後に抄
紙乾燥し、さらに亜塩素酸ソーダで晒処理することによ
って、晒古紙パルプを得た。この晒古紙パルプのカナデ
ィアンフリーネスは６６０ｃｓｆであった。そしてこの
晒古紙パルプを用いて後は実施例１と同様にして、繊維
補強セメント硬化体を得た。Example 7 A bleached waste paper pulp was obtained by wet disintegrating a milk pack with a pulper, separating impurities and pulp with a screen, drying with papermaking, and further subjecting to bleaching treatment with sodium chlorite. The Canadian freeness of this bleached waste paper pulp was 660 csf. Then, using this bleached waste paper pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
【００２１】（比較例１）補強用パルプ繊維として晒処
理をおこなっていない再生処理ダンボール古紙パルプを
使用した。このダンボール古紙パルプのカナディアンフ
リーネスは５９０ｃｓｆであった。そしてこのダンボー
ル古紙パルプを用いて後は実施例１と同様にして、繊維
補強セメント硬化体を得た。(Comparative Example 1) Recycled cardboard waste paper pulp which had not been bleached was used as the reinforcing pulp fiber. The Canadian freeness of this cardboard waste paper pulp was 590 csf. Then, using this cardboard waste paper pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
【００２２】（比較例２）補強用パルプ繊維を、ＮＵＫ
Ｐバージンパルプを３重量％、ＬＵＫＰバージンパルプ
を３重量％混合して６重量％として用いるようにした。
このパルプのカナディアンフリーネスは６４０ｃｓｆで
あった。そしてこのパルプを用いて後は実施例１と同様
にして、繊維補強セメント硬化体を得た。(Comparative Example 2) A reinforcing pulp fiber was mixed with NUK.
3% by weight of P virgin pulp and 3% by weight of LUKP virgin pulp were mixed to be used as 6% by weight.
The Canadian freeness of this pulp was 640 csf. Then, using this pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
【００２３】上記各実施例１乃至７及び比較例１，２に
おいて、長網式抄造機の抄造可能な上限の抄造スピード
を測定し、また繊維補強セメント硬化体の引張強度及び
絶乾比重を測定した。結果を次表に示す。In each of the above Examples 1 to 7 and Comparative Examples 1 and 2, the upper limit of the paper making speed of the Fourdrinier paper making machine was measured, and the tensile strength and absolute dry specific gravity of the fiber-reinforced cement cured product were measured. did. The results are shown in the table below.
【００２４】[0024]
【表１】 [Table 1]
【００２５】表１にみられるように、補強用パルプ繊維
としてカナディアンフリーネスが６５０ｃｓｆ以上であ
る再生処理した晒古紙パルプを使用するようにした各実
施例のものは、カナディアンフリーネスが６５０ｃｓｆ
より小さいの比較例１，２のものに比べて、抄造スピー
ドをアップして生産スピードを向上させることができ、
また晒処理していない比較例１のものに比べて繊維補強
セメント硬化体の物性も優れていることが確認される。As can be seen from Table 1, in each of the examples in which the recycled bleached waste paper pulp having a Canadian freeness of 650 csf or more was used as the reinforcing pulp fiber, the Canadian freeness was 650 csf.
Compared to the smaller ones of Comparative Examples 1 and 2, the papermaking speed can be increased and the production speed can be improved.
It was also confirmed that the physical properties of the fiber-reinforced cement cured product were superior to those of Comparative Example 1 which was not subjected to the bleaching treatment.
【００２６】[0026]
【発明の効果】上記のように本発明は、セメントを主成
分とし骨材及び補強用パルプ繊維を配合した配合材を抄
造して繊維補強セメント硬化体を製造するにあたって、
上記補強用パルプ繊維としてカナディアンフリーネスが
６５０ｃｓｆ以上である再生処理した晒古紙パルプを使
用するようにしたので、再生処理品を用いることによっ
て産業廃棄物の有効利用による森林資源の保護を図るこ
とができるのは勿論、カナディアンフリーネスが６５０
ｃｓｆ以上の濾水性を有する補強用パルプ繊維によっ
て、抄造のスピードを高めて生産性を高めることができ
ると共に、晒古紙パルプの使用によって不純物がないも
のを使用することができ、生産トラブルが発生すること
なく、さらに物性を低下させることなく製造をおこなう
ことができるものである。As described above, in the present invention, in producing a fiber-reinforced cement cured product by making a compounded material containing cement as a main component and an aggregate and a reinforcing pulp fiber,
Since the recycled bleached waste paper pulp having a Canadian freeness of 650 csf or more is used as the reinforcing pulp fiber, it is possible to protect forest resources by effectively using industrial waste by using a recycled product. Of course, Canadian Freeness is 650
A reinforcing pulp fiber having a drainage of not less than csf can increase the speed of papermaking to improve productivity, and the use of bleached waste paper pulp can be used without any impurities, resulting in production trouble. Production can be performed without further degrading the physical properties.
【手続補正書】[Procedure amendment]
【提出日】平成５年１１月２２日[Submission date] November 22, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１５[Name of item to be corrected] 0015
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１５】（実施例２）紙おむつを乾式で粉砕し、第
１のスクリーンを通してポリ塩化ビニルやゴム等を除去
した後に、さらに第２のスクリーンを通して吸水性ポリ
マーを除去した。この後に抄紙乾燥し、さらに亜塩素酸
ソーダで晒処理することによって、晒古紙パルプを得
た。この晒古紙パルプのカナディアンフリーネスは７３
０ｃｓｆであった。そしてこの晒古紙パルプを用いて後
は実施例１と同様にして、繊維補強セメント硬化体を得
た。Example 2 A paper diaper was pulverized by a dry method to remove polyvinyl chloride, rubber and the like through a first screen, and then a water absorbing polymer was removed through a second screen. After this, the paper was dried and further bleached with sodium chlorite to obtain bleached waste paper pulp. The Canadian freeness of this bleached waste paper pulp is 73
It was 0 csf. Then, using this bleached waste paper pulp, a fiber-reinforced cement cured product was obtained in the same manner as in Example 1.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 16:02 Ｚ 18:08 14:20 Ａ 14:28） ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location C04B 16:02 Z 18:08 14:20 A 14:28)
Claims (6)
ルプ繊維を配合した配合材を抄造して繊維補強セメント
硬化体を製造するにあたって、上記補強用パルプ繊維と
してカナディアンフリーネスが６５０ｃｓｆ以上である
再生処理した晒古紙パルプを使用することを特徴とする
繊維補強セメント硬化体の製造方法。1. A recycled material having a Canadian freeness of 650 csf or more as the reinforcing pulp fiber when a fiber-reinforced cement hardened product is produced by making a compounding material containing cement as a main component and an aggregate and a reinforcing pulp fiber. A method for producing a fiber-reinforced cement cured product, which comprises using treated bleached waste paper pulp.
のような綿製品の再生処理した晒古紙パルプを使用する
ことを特徴とする請求項１に記載の繊維補強セメント硬
化体の製造方法。2. The method for producing a cured fiber-reinforced cement product according to claim 1, wherein a bleached waste paper pulp obtained by regenerating a cotton product such as a towel or underwear is used as the reinforcing pulp fiber.
古紙パルプを使用することを特徴とする請求項１に記載
の繊維補強セメント硬化体の製造方法。3. The method for producing a fiber-reinforced cement hardened product according to claim 1, wherein bleached waste paper pulp of a paper diaper is used as the reinforcing pulp fiber.
古紙パルプを使用することを特徴とする請求項１に記載
の繊維補強セメント硬化体の製造方法。4. The method for producing a fiber-reinforced cement hardened product according to claim 1, wherein bleached waste paper pulp of a paper cup is used as the reinforcing pulp fiber.
物の紙パックの晒古紙パルプを使用することを特徴とす
る請求項１に記載の繊維補強セメント硬化体の製造方
法。5. The method for producing a hardened fiber-reinforced cement according to claim 1, wherein bleached waste paper pulp of a paper pack of a beverage such as milk is used as the reinforcing pulp fiber.
とを特徴とする請求項１乃至５のいずれかに記載の繊維
補強セメント硬化体の製造方法。6. The method for producing a fiber-reinforced cement cured product according to claim 1, wherein the papermaking is performed using a Fourdrinier papermaking machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25859693A JPH07109165A (en) | 1993-10-15 | 1993-10-15 | Production of hardening material by fiber reinforced cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25859693A JPH07109165A (en) | 1993-10-15 | 1993-10-15 | Production of hardening material by fiber reinforced cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07109165A true JPH07109165A (en) | 1995-04-25 |
Family
ID=17322469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25859693A Pending JPH07109165A (en) | 1993-10-15 | 1993-10-15 | Production of hardening material by fiber reinforced cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07109165A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005088463A (en) * | 2003-09-19 | 2005-04-07 | Nichiha Corp | Colored inorganic decorative plate and its manufacturing method |
| JP2006518323A (en) * | 2003-01-09 | 2006-08-10 | ジェイムズ ハーディー インターナショナル ファイナンス ベスローテン フェンノートシャップ | Fiber cement composites using bleached cellulose fibers |
| US7931952B2 (en) | 2005-05-31 | 2011-04-26 | Shinsei Techno Co. Ltd. | Water-retainable molding and method for manufacturing the same |
| CN104420410A (en) * | 2013-08-23 | 2015-03-18 | 北科绿能有限公司 | Ecological brick and ecological pavement product |
| US8993462B2 (en) | 2006-04-12 | 2015-03-31 | James Hardie Technology Limited | Surface sealed reinforced building element |
| CN106284013A (en) * | 2015-05-19 | 2017-01-04 | 镇江市润州园林绿化研究所 | Greening floor tile |
-
1993
- 1993-10-15 JP JP25859693A patent/JPH07109165A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006518323A (en) * | 2003-01-09 | 2006-08-10 | ジェイムズ ハーディー インターナショナル ファイナンス ベスローテン フェンノートシャップ | Fiber cement composites using bleached cellulose fibers |
| JP2005088463A (en) * | 2003-09-19 | 2005-04-07 | Nichiha Corp | Colored inorganic decorative plate and its manufacturing method |
| US7931952B2 (en) | 2005-05-31 | 2011-04-26 | Shinsei Techno Co. Ltd. | Water-retainable molding and method for manufacturing the same |
| US8993462B2 (en) | 2006-04-12 | 2015-03-31 | James Hardie Technology Limited | Surface sealed reinforced building element |
| CN104420410A (en) * | 2013-08-23 | 2015-03-18 | 北科绿能有限公司 | Ecological brick and ecological pavement product |
| CN106284013A (en) * | 2015-05-19 | 2017-01-04 | 镇江市润州园林绿化研究所 | Greening floor tile |
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