JPH03121810A - Fiber mortar product - Google Patents
Fiber mortar productInfo
- Publication number
- JPH03121810A JPH03121810A JP25941189A JP25941189A JPH03121810A JP H03121810 A JPH03121810 A JP H03121810A JP 25941189 A JP25941189 A JP 25941189A JP 25941189 A JP25941189 A JP 25941189A JP H03121810 A JPH03121810 A JP H03121810A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- inorganic powder
- paper
- fiber mortar
- mortar
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 63
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 63
- 239000000843 powder Substances 0.000 claims abstract description 53
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000010425 asbestos Substances 0.000 abstract description 21
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 13
- 238000005452 bending Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 239000011398 Portland cement Substances 0.000 abstract description 4
- 239000012784 inorganic fiber Substances 0.000 abstract description 4
- 229920003043 Cellulose fiber Polymers 0.000 abstract description 3
- 239000012209 synthetic fiber Substances 0.000 abstract description 3
- 229920002994 synthetic fiber Polymers 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011490 mineral wool Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000002657 fibrous material Substances 0.000 description 5
- -1 etc. Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 235000019687 Lamb Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Producing Shaped Articles From Materials (AREA)
Abstract
Description
【発明の詳細な説明】
イ、産業上の利用分野
本発明は、給排水管、換気管、電らん管、管継手及びボ
ード等の用途に供せられる繊維モルタル製品に関する。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to fiber mortar products that can be used as water supply and drainage pipes, ventilation pipes, electric lamp pipes, pipe joints, boards, and the like.
詳しくは繊維モルタル管及び板の抄造に際して、繊維材
料として石綿を使用しないいわゆる脱石綿化を図ると共
に無機粉体含有紙を用いて繊維モルタル管及び板の曲げ
強度を補強した繊維モルタル製品に関するものである。Specifically, it relates to fiber mortar products in which asbestos is not used as the fiber material when making fiber mortar tubes and plates, and paper containing inorganic powder is used to strengthen the bending strength of the fiber mortar tubes and plates. be.
口、従来の技術
繊維モルタル製品は、従来石綿モルタル製品と称するも
のがあり、使用される主原料は石綿：モルタル＝１：５
〜６（重量比）が基準配合となっており石綿の使用は不
可欠なものであった。Conventional technology Fiber mortar products are conventionally called asbestos mortar products, and the main raw material used is asbestos: mortar = 1:5.
~6 (weight ratio) was the standard formulation, and the use of asbestos was essential.
そして、管や板の曲げ強度、たわみ性等の付与には石綿
は好適な材料であり、しかも不燃材料であるため、繊維
モルタル製品の原料として有効に利用されてきたのであ
る。Asbestos is a suitable material for imparting bending strength and flexibility to pipes and plates, and is also a noncombustible material, so it has been effectively used as a raw material for fiber mortar products.
しかしながら、近年石綿による発ガン性が指摘されるに
至って繊維モルタル製品の脱石綿化が要望されるように
なった。However, in recent years, the carcinogenicity of asbestos has been pointed out, and there has been a demand for asbestos removal from fiber mortar products.
脱石綿化を図る方法としてガラス繊維、岩綿、スラグウ
ール、チタン酸カリウム等の無機繊維や、木材パルプ、
木毛、木粉等の有機繊維との代替が考えられるが、石綿
使用時と同等の強度や不燃性を維持することは困難であ
る。Asbestos removal methods include inorganic fibers such as glass fiber, rock wool, slag wool, potassium titanate, wood pulp,
Substitution with organic fibers such as wood wool and wood flour can be considered, but it is difficult to maintain the same strength and nonflammability as when using asbestos.
更にこれらの諸点を解決するために、例えば繊維モルタ
ル管においては、繊維モルタル管の主要用途である内部
に塩ビ管を挿入した耐火二層管において、有機質繊維ま
たは人造鉱物繊維よりなる布またはマットにセメンＩ〜
物質を含浸付着させて、内部の塩ビ管を巻き込む処理な
どが考案され（実公昭６２−８９４）でいるが、この方
法においても工程の複雑さ、製造コストの上昇などの問
題点を抱えているのが現状である。Furthermore, in order to solve these problems, for example, in fiber mortar pipes, in fireproof double-layered pipes with PVC pipe inserted inside, which is the main use of fiber mortar pipes, fabrics or mats made of organic fibers or artificial mineral fibers are used. Semen I~
A method of impregnating and adhering a substance and involving the internal PVC pipe has been devised (Utility Model Publication No. 1989-894), but this method also has problems such as the complexity of the process and the increase in manufacturing costs. is the current situation.
ハ１発明が解決しようとする問題点
本発明は、従来の湿式抄造法による石綿モルタル製品の
製造に際して脱石綿化を図るなめ発明されたものである
。C1 Problems to be Solved by the Invention The present invention was invented to remove asbestos from the production of asbestos mortar products using the conventional wet papermaking method.
即ち、湿式抄造法において石綿を含まない繊維モルタル
原料を含む湿潤シートから、繊維モルタル管及び板を製
造する際、該湿潤シートに炭酸カルシウム等からなる無
機粉体含有紙を少なくとも一層以上積層して板状にする
か若しくは無機粉体含有紙を該湿潤シートに巻き込み管
状に成形した後、養生硬化させることによって強度のあ
る不燃性の繊維モルタル製品を提供するものである。That is, when manufacturing fiber mortar pipes and plates from a wet sheet containing asbestos-free fiber mortar raw materials in a wet papermaking method, at least one layer of paper containing inorganic powder such as calcium carbonate is laminated on the wet sheet. A strong, non-combustible fiber mortar product is provided by making it into a plate shape or by winding inorganic powder-containing paper into the wet sheet and forming it into a tube shape, and then curing and curing it.
二１問題点を解決するための手段
本発明者らは、繊維モルタル原料との密着性が極めて優
れ、かつ高強度で難燃性を有する無機粉体含有紙を作製
するとともに、繊維モルタル製品の製造に際し、湿式抄
造法で得られた繊維モルタル原料からの湿潤シートと前
記無機粉体含有紙とを少なくとも一層以」二種層するこ
とによって、繊維モルタル製品の新規の補強方法を見い
だしたものである。21 Means for Solving the Problems The present inventors have created an inorganic powder-containing paper that has extremely good adhesion to fiber mortar raw materials, high strength, and flame retardancy, and also During production, a new method for reinforcing fiber mortar products has been discovered by layering at least one or more layers of a wet sheet made from a fiber mortar raw material obtained by a wet papermaking method and the above-mentioned inorganic powder-containing paper. be.
即ち、本発明は無機粉体含有紙が繊維モルタル原料との
密着性に優れていることを見いだし、この粉体を主体に
した無機粉体含有紙を通常の抄造法によって製造すると
ともに、繊維モルタル原料の湿潤シートと該無機粉体含
有紙とを積層して板状にするか若しくは鉄芯等を用いて
管状に巻き付け、成形し、その後養生硬化させることに
よって従来の石綿モルタル製品の有する曲げ強度とたわ
み性が同等以上で、しかも廉価で不燃性をも付与した繊
維モルタル製品を提供するものである。That is, the present invention has discovered that inorganic powder-containing paper has excellent adhesion with fiber mortar raw materials, and in addition to manufacturing inorganic powder-containing paper mainly using this powder by a normal papermaking method, fiber mortar The bending strength of conventional asbestos mortar products is achieved by laminating a wet sheet of raw material and the inorganic powder-containing paper into a plate shape, or by winding it into a tube shape using an iron core, forming it, and then curing and hardening it. The purpose of the present invention is to provide a fiber mortar product which has a flexibility equal to or better than that of the fiber mortar product, is inexpensive, and has noncombustibility.
更に詳しく説明ずれは、本発明に供する無機粉体含有紙
とは、主として繊維物質と無機粉体とから構成され、繊
維物質はセルロース系繊維、合成繊維、化学繊維等の有
機繊維と無機繊維よりなり、これらの内１種又は２種以
上が使用される。In more detail, the inorganic powder-containing paper used in the present invention is mainly composed of fibrous material and inorganic powder, and the fibrous material is composed of organic fibers such as cellulose fibers, synthetic fibers, chemical fibers, and inorganic fibers. One or more of these may be used.
一般に使用されるセルロース繊維とは、針葉樹クラフト
パルプ、広葉樹クラフトパルプ等の木材パルプであり、
必要に応じてレーヨン、ビニロン、ポリエステル等の有
機繊維とかガラス繊維、岩綿、スラグウール、セラミッ
ク繊維等の無機繊維とを適宜混合使用されるもので、そ
の配合量は５乃至８０重量部であるが繊維モルタル製品
の強度、不燃性の点から１５乃至５０重量部が好ましい
。Commonly used cellulose fibers are wood pulps such as softwood kraft pulp and hardwood kraft pulp.
Organic fibers such as rayon, vinylon, polyester, etc., and inorganic fibers such as glass fibers, rock wool, slag wool, ceramic fibers, etc. are appropriately mixed and used as necessary, and the blending amount is 5 to 80 parts by weight. is preferably 15 to 50 parts by weight from the viewpoint of strength and nonflammability of the fiber mortar product.
又、本発明に使用される無機粉体は、主にポルトランド
セメントを用いた繊維モルタル原料と特に密着性の優れ
た材料が好ましくその物質としては、炭酸カルシウム、
ケイ石、ケイ砂、ケイ藻土、ケイ灰石、ケイ酸アルミニ
ウム、ケ不酸カルシウム、シラスバルーン、雲母、ベン
トナイト、活性白土、白土、陶石、蝋石、セリサイト、
長石、石灰石、滑石、クリストバライト、天然ゼオライ
ト、合成ゼオライトアルミナ、水酸化アルミニウム、シ
リカゲル、アルミナゲル、シリカアルミナゲル、高炉ス
ラグ、フライアッシュ、パーライト、ポルトランドセメ
ント等の粉体もしくは、繊維状物が使用されるが、これ
らの粉体のうち特に炭酸カルシウムの密着性が優れてお
り、目的とする性能に応してこれらの内の１種又は、２
種以上が混合される。The inorganic powder used in the present invention is preferably a material that has particularly good adhesion to fiber mortar raw materials mainly using Portland cement, such as calcium carbonate,
Silica stone, silica sand, diatomaceous earth, wollastonite, aluminum silicate, calcium diatomite, shirasu balloon, mica, bentonite, activated clay, white clay, chinastone, rouseki, sericite,
Powder or fibrous materials such as feldspar, limestone, talc, cristobalite, natural zeolite, synthetic zeolite alumina, aluminum hydroxide, silica gel, alumina gel, silica alumina gel, blast furnace slag, fly ash, perlite, and portland cement are used. However, among these powders, calcium carbonate has particularly excellent adhesion, and one or two of these powders may be used depending on the desired performance.
More than one species is mixed.
無機粉体含有紙における無機粉体配合量は９５乃至２０
重量部であるが、粉体の混入量が多いほど湿潤シート中
の繊維モルタル成分との密着性が向上し、かつ不燃性も
付与出来るが、無機粉体配合量が８５重量部以上の場合
、紙の強度のうち特に引っ張り強さが著しく低下するた
め、これを用いた管及び板の曲げ強度を向上させること
は、困難であった。The inorganic powder content in inorganic powder-containing paper is 95 to 20
The larger the amount of powder mixed in, the better the adhesion with the fiber mortar component in the wet sheet and the ability to provide nonflammability, but when the amount of inorganic powder mixed is 85 parts by weight or more, Among the strengths of paper, particularly the tensile strength is significantly reduced, so it has been difficult to improve the bending strength of pipes and plates using this paper.
含有紙が好ましいが、繊維モルタル板の場合は、目的強
度に応じて任意の坪量の無機粉体含有紙を選択できる。Paper containing inorganic powder is preferred, but in the case of a fiber mortar board, paper containing inorganic powder of any basis weight can be selected depending on the desired strength.
さらに繊維モルタル湿潤シートとの密着性を向上させる
ため紙面に無機粉体を塗工することも可能である。Furthermore, it is also possible to coat the paper surface with inorganic powder in order to improve the adhesion with the fiber mortar wet sheet.
次に無機粉体含有紙を繊維モルタル湿潤シートに積層し
て板状にする方法と湿潤シーｌ−に該含有紙を巻き込む
方法について詳述する。繊維モルタル管の製法は主にポ
ルトランドセメントを用い、砂、砂利、パーライト等の
骨材、ガラス繊維、岩綿、スラグウール、パルプ、合成
繊維等の繊維物質、火山灰、フライアッシュ、塩化カル
シウム、ケイ酸ナトリウム等の混和剤とを適宜混合し、
湿式抄造機の金網上に湿潤シートを形成させる。Next, a method of laminating inorganic powder-containing paper onto a wet sheet of fiber mortar to form a plate, and a method of rolling the paper containing inorganic powder into a wet seal will be described in detail. The manufacturing method for fiber mortar pipes mainly uses Portland cement, aggregates such as sand, gravel, and perlite, fiber materials such as glass fiber, rock wool, slag wool, pulp, and synthetic fibers, volcanic ash, fly ash, calcium chloride, and silica. Mix appropriately with an admixture such as sodium acid,
A wet sheet is formed on the wire mesh of a wet papermaking machine.
従来、金網上に形成された繊維モルタルの湿潤シート層
は、脱水されながら毛布上に転移され、その毛布」二の
湿潤シートは鉄また、５０重量部以下の場合、前述の強
度は付与出来るものの紙が燃え易くなる。Conventionally, a wet sheet layer of fiber mortar formed on a wire mesh is transferred onto a blanket while being dehydrated, and the second wet sheet of the blanket is made of iron. Paper becomes more flammable.
従って、これを用いた管及び板の不燃性が損なわれると
いう欠点を有していたため、粉体の混入量は８５乃至５
０重量部が好適である。Therefore, it had the disadvantage that the nonflammability of pipes and plates using this material was impaired, so the amount of powder mixed in was 85 to 5.
0 parts by weight is preferred.
無機粉体含有紙は、前述の繊維と粉体を混合した原料ス
ラリーを調整した後、通常の抄紙機で抄造するが、積層
する繊維モルタル原料の配合によって適宜紙力増強剤、
サイズ剤等を添加してもよい。Inorganic powder-containing paper is produced using a normal paper machine after preparing a raw material slurry in which the aforementioned fibers and powder are mixed.
A sizing agent etc. may be added.
又、繊維モルタル管の場合、補強に適した無機粉体含有
紙の坪量は、３５乃至２００ｇ／ｒｒｉ’であるが、厚
くなると剛性が増し湿潤シートによる紙の巻き込みが困
難となって眉間剥離が生じやすくなり、反対に薄くなる
と湿潤シート上での展延性が悪くなり、かつ巻き込み時
にシワが発生し作業性を損なう原因となる。それ故坪量
７０乃至１２０ｇ／ｒｒ１′の湿潤強度の優れた無機粉
体芯などに巻き付けられ、管状に成形されるが、本発明
においては該無機粉体含有紙と湿潤シートを少なくとも
一周以上積層した後、鉄芯などに巻き付は管状に成形す
る。In addition, in the case of fiber mortar pipes, the basis weight of inorganic powder-containing paper suitable for reinforcement is 35 to 200 g/rri'; however, the thicker the paper, the more rigid it becomes, making it difficult to wrap the paper in with the wet sheet, resulting in peeling between the eyebrows. On the other hand, if it becomes thinner, spreadability on a wet sheet becomes worse, and wrinkles occur when rolled up, impairing workability. Therefore, it is wound around an inorganic powder core with a basis weight of 70 to 120 g/rr1' and has excellent wet strength and formed into a tube. In the present invention, the inorganic powder-containing paper and the wet sheet are laminated at least once or more. After that, it is wrapped around an iron core and formed into a tubular shape.
積層の際、必要に応じて硬化促進剤、有機・無機系接着
剤等を添加することも可能である。管状に成形された繊
維モルタル管は、養生硬化をおこなうことによって製品
となる。During lamination, it is also possible to add a curing accelerator, organic/inorganic adhesive, etc., if necessary. A fiber mortar pipe formed into a tubular shape becomes a product by curing and curing.
一方、繊維モルタル板は、前記載の湿潤シートを毛布上
から、メーキングロールに転移させ数層以上巻き付は所
望の厚さとし、横方向に切断し長方形状に展延した湿潤
シートを該無機粉体含有紙の間に挿入し、多段プレスで
加熱加圧後養生硬化を行うことによって製品にする。On the other hand, the fiber mortar board is made by transferring the wet sheet described above from a blanket to a making roll, wrapping it in several layers or more to the desired thickness, cutting it in the transverse direction, rolling it out into a rectangular shape, and then rolling the wet sheet into a rectangular shape using the inorganic powder. The product is made by inserting it between sheets of paper containing body parts, applying heat and pressure in a multi-stage press, and then curing and curing it.
しかしながら、湿潤シートの形成及び積シム
層方法は、抄紙＼に限定されるものではなく、該含有紙
の挿入も湿潤シーＩ・と交互に数層以上積層してもよく
板の片面のいずれかの一方であっても差し支えない。However, the method of forming a wet sheet and laminating shim layers is not limited to paper making, and the paper containing paper may be inserted or laminated in several layers or more alternately with the wet sheet I. There is no problem even if it is one of the two.
次に本発明を実施例によって更に詳細に説明するが、本
発明はこれらの実施例に限定されるものではない。Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.
ポ、実施例
〈実施例１〉
予め、カナデイアンフリーネス４５０ｃｃに叩解した針
葉樹クラフトパルプ２０重量部と平均粒子径２０ミクロ
ンの重質炭酸カルシウム５０重量部、平均粒子径１７ミ
クロンの水酸化アルミラム２５重量部、ガラス繊維５重
量部を混合分散させた後、少量の湿潤紙力増強剤と凝集
剤を加え抄紙機で坪量１００ｇ／ｒｒｉ’の無機粉体含
有紙を得た。Examples (Example 1) 20 parts by weight of softwood kraft pulp beaten to 450 cc of Canadian freeness, 50 parts by weight of heavy calcium carbonate with an average particle size of 20 microns, and 25 weight parts of aluminum hydroxide lamb with an average particle size of 17 microns. After mixing and dispersing 5 parts by weight of glass fibers, a small amount of a wet paper strength enhancer and a flocculant were added, and an inorganic powder-containing paper having a basis weight of 100 g/rri' was obtained using a paper machine.
この無機粉体含有紙を１ｍＸ２．２ｍ角に裁断し、この
無機粉体含有紙を石綿を配合していない繊維モルタル原
料から得られた湿潤シート上に積層した後、鉄芯に巻き
成形後養生して外径１１．５ｃｍ内径１００ｎ管長２．
００ｍの繊維モルタル管を得た。This inorganic powder-containing paper is cut into 1m x 2.2m squares, laminated on a wet sheet obtained from fiber mortar raw materials that do not contain asbestos, wound around an iron core, and then cured. Outer diameter 11.5cm Inner diameter 100n Pipe length 2.
A 00m fiber mortar pipe was obtained.
１］−
〈実施例２〉
石綿を配合していない繊維モルタル原料から得られた湿
潤シートを抄紙機の毛布上からメーキングロールに転移
し、数層量」二巻いて厚さ７．５ｍ／ｍの湿潤シートを
得た。1]-〈Example 2〉 A wet sheet obtained from a fiber mortar raw material containing no asbestos was transferred from the blanket of a paper machine to a making roll, and rolled into two layers to a thickness of 7.5 m/m. A wet sheet was obtained.
このシートを横方向に切断し長方形状に展延した後、実
施例１で得た無機粉体含有紙の間に挿入し、多段プレス
で加熱加圧処理し、養生後厚さ８ｍ／ｍ、巾９００ｍ／
ｍ、長さ１，８００ｍ／ｍの繊維モルタル板を得た。After cutting this sheet in the transverse direction and rolling it out into a rectangular shape, it was inserted between the inorganic powder-containing papers obtained in Example 1, heated and pressurized in a multistage press, and after curing, the thickness was 8 m/m, Width 900m/
A fiber mortar board with a length of 1,800 m/m was obtained.
〈比較例１〉
実施例１において無機粉体含有紙を巻き込んでいない石
綿を入れていない繊維モルタル管。<Comparative Example 1> A fibrous mortar pipe in which asbestos-free paper containing inorganic powder was not rolled up in Example 1.
〈比較例２〉
実施例１において無機粉体含有紙の代りに湿潤紙力増強
剤を固形分に対して１％添加した坪量１００ ｇ／ｒｒ
ｆの針葉樹クラフト２
パルプから得られた紙を用いた繊維モルタル管。<Comparative Example 2> In place of the inorganic powder-containing paper in Example 1, a wet paper strength enhancer was added at 1% based on the solid content, and the basis weight was 100 g/rr.
f Softwood Craft 2 Fiber mortar pipe using paper obtained from pulp.
〈比較例３〉
石綿入りの従来と全く同様な方法で得られた石綿モルタ
ル管。<Comparative Example 3> Asbestos mortar pipe containing asbestos obtained in exactly the same manner as the conventional method.
〈比較例４〉
実施例２で得た厚さ７．５ｍ／ｍの湿潤シートを該無機
粉体含有紙を用いることなく、そのまま多段プレスで加
熱加圧処理した後養生して厚さ８ｍ／ｍ、巾９００ｍ／
ｍ、長さ１．８００ｍ／ｍの繊維モルタル板を得た。<Comparative Example 4> The wet sheet with a thickness of 7.5 m/m obtained in Example 2 was heated and pressurized in a multistage press without using the inorganic powder-containing paper, and then cured to a thickness of 8 m/m. m, width 900m/
A fiber mortar board with a length of 1.800 m/m was obtained.
く比較例５〉
石綿を１５重量部配合した繊維モルタル原料を用いて実
施例２と同様な方法で厚さ８ｍ／ｍ、巾９００ｍ／ｍ、
長さ１，８００ ｍ ／ ｍの繊維モルタル板を得た。Comparative Example 5> Using a fiber mortar raw material containing 15 parts by weight of asbestos, a material with a thickness of 8 m/m, a width of 900 m/m, and a width of 900 m/m was prepared in the same manner as in Example 2.
A fiber mortar board with a length of 1,800 m/m was obtained.
実施例１、比較例１．２．３の管の曲げの強度とたわみ
性の代表的な数値（最頻値）を表１に示す。Table 1 shows typical values (mode values) of the bending strength and flexibility of the pipes of Example 1 and Comparative Examples 1, 2, and 3.
表１
実施例２、比較例４．５の板の曲げ強度とたわみ性の代
表的な数値（最頻値）を表２に示す。Table 1 Table 2 shows typical values (modes) of the bending strength and flexibility of the plates of Example 2 and Comparative Examples 4.5.
表２
へ１発明の効果
本発明は、従来からの使用されていた石綿モルタル製品
である管及び管継手並びにスレート板の脱石綿化を図り
、製品の強度を従来品よりも高めることを目的として開
発したものである。Table 2 1 Effects of the Invention The present invention aims to remove asbestos from pipes, pipe fittings, and slate plates that are conventionally used asbestos mortar products, and to increase the strength of the products compared to conventional products. It was developed.
本発明の繊維モルタル製品は、石綿を使用していないの
で、発ガン性もなく、また、従来品に比べて同等以上の
曲げ強度、たわみ性を有している。しかも、無機粉体含
有紙が外面に露出しても難燃性であるから、火災に対し
、安全である
潤シート中のセメントとの密着蛛がよいので剥離するこ
とがない。Since the fiber mortar product of the present invention does not use asbestos, it is not carcinogenic and has bending strength and flexibility that are equal to or higher than those of conventional products. In addition, even if the inorganic powder-containing paper is exposed to the outside, it is flame-retardant, so it is safe from fire and adheres well to the cement in the sheet, so it does not peel off.
第１図は繊維モルタル管の斜視図、第２図は無機粉体含
有紙により上・下層を補強した繊維モルタル板、第３図
は無機粉体含有紙により上・下層・中間層を補強した繊
維モルタル板の一実施例を示す。
１・・・・・・・・・無機粉体含有紙
２・・・・・・・・・繊維モルタル湿潤シート５
６Figure 1 is a perspective view of a fiber mortar pipe, Figure 2 is a fiber mortar board with the upper and lower layers reinforced with inorganic powder-containing paper, and Figure 3 is with the upper, lower, and middle layers reinforced with inorganic powder-containing paper. An example of a fiber mortar board is shown. 1... Inorganic powder-containing paper 2... Fiber mortar wet sheet 5 6
Claims (4)
との密着性良好なる無機粉体含有紙とを少なくとも一層
以上積層して板状にすることを特徴とする繊維モルタル
製品。(1) A fiber mortar product characterized in that it is made into a plate by laminating at least one layer of a wet sheet made of a fiber mortar raw material and at least one layer of inorganic powder-containing paper that has good adhesion to the raw material.
との密着性良好なる無機粉体含有紙とを積層して管状に
成形してなることを特徴とする繊維モルタル製品。(2) A fiber mortar product characterized by being formed into a tubular shape by laminating a wet sheet made of fiber mortar raw material and paper containing inorganic powder that has good adhesion to the raw material.
、金属、不溶性塩である特許請求の範囲第１、２項記載
の繊維モルタル製品。(3) The fiber mortar product according to claims 1 and 2, wherein the inorganic powder used in the inorganic powder-containing paper is a nonmetallic inorganic substance, a metal, or an insoluble salt.
酸カルシウムである特許請求の範囲第１〜３項記載の繊
維モルタル製品。(4) The fiber mortar product according to claims 1 to 3, wherein the inorganic powder used in the inorganic powder-containing paper is mainly calcium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25941189A JPH03121810A (en) | 1989-10-04 | 1989-10-04 | Fiber mortar product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25941189A JPH03121810A (en) | 1989-10-04 | 1989-10-04 | Fiber mortar product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03121810A true JPH03121810A (en) | 1991-05-23 |
Family
ID=17333741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25941189A Pending JPH03121810A (en) | 1989-10-04 | 1989-10-04 | Fiber mortar product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03121810A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100337176B1 (en) * | 1999-09-20 | 2002-05-18 | 배종렬 | A method for preparing cellulose fiber reinforced cement mortar |
| JP2006084016A (en) * | 2004-09-16 | 2006-03-30 | Funen Akurosu Kk | Sound insulation outer pipe for fireproof two-layered pipe and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641881A (en) * | 1979-09-06 | 1981-04-18 | Ibigawa Electric Ind Co Ltd | Lightweight high strength inorganic board and manufacture thereof |
| JPS61210U (en) * | 1984-06-07 | 1986-01-06 | 日本電気株式会社 | Reel structure |
| JPS6157312A (en) * | 1984-08-29 | 1986-03-24 | 株式会社クボタ | Manufacture of hollow cylindrical body made of fiber reinforced ceramic |
-
1989
- 1989-10-04 JP JP25941189A patent/JPH03121810A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641881A (en) * | 1979-09-06 | 1981-04-18 | Ibigawa Electric Ind Co Ltd | Lightweight high strength inorganic board and manufacture thereof |
| JPS61210U (en) * | 1984-06-07 | 1986-01-06 | 日本電気株式会社 | Reel structure |
| JPS6157312A (en) * | 1984-08-29 | 1986-03-24 | 株式会社クボタ | Manufacture of hollow cylindrical body made of fiber reinforced ceramic |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100337176B1 (en) * | 1999-09-20 | 2002-05-18 | 배종렬 | A method for preparing cellulose fiber reinforced cement mortar |
| JP2006084016A (en) * | 2004-09-16 | 2006-03-30 | Funen Akurosu Kk | Sound insulation outer pipe for fireproof two-layered pipe and its manufacturing method |
| JP4537173B2 (en) * | 2004-09-16 | 2010-09-01 | フネンアクロス株式会社 | Sound insulation type outer tube for fireproof two-layer tube and its manufacturing method |
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