JPS6339655A - Method and apparatus for spraying fiber-reinforced composite material - Google Patents
Method and apparatus for spraying fiber-reinforced composite materialInfo
- Publication number
- JPS6339655A JPS6339655A JP17936686A JP17936686A JPS6339655A JP S6339655 A JPS6339655 A JP S6339655A JP 17936686 A JP17936686 A JP 17936686A JP 17936686 A JP17936686 A JP 17936686A JP S6339655 A JPS6339655 A JP S6339655A
- Authority
- JP
- Japan
- Prior art keywords
- aggregate
- spray nozzle
- compressed air
- cement
- spraying
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000005507 spraying Methods 0.000 title claims abstract description 27
- 239000003733 fiber-reinforced composite Substances 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 8
- 239000000835 fiber Substances 0.000 claims abstract description 42
- 239000004568 cement Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 239000012784 inorganic fiber Substances 0.000 claims description 3
- 239000012615 aggregate Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000002131 composite material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は繊維補強複合材の吹付方法及びその装置でちっ
て、補強繊維を均一に混合分散した繊維補強複合材料の
吹付方法及び装置に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method and apparatus for spraying a fiber-reinforced composite material, and more particularly, to a method and apparatus for spraying a fiber-reinforced composite material in which reinforcing fibers are uniformly mixed and dispersed. It is.
土木、建築分野ではセメノド等の無機質水硬性材料、骨
材等に、金属繊維又はガラス繊維等の繊維を補強材と（
〜で〆混入し、吹付ける方法が広く行われている。In the civil engineering and construction fields, fibers such as metal fibers or glass fibers are used as reinforcing materials for inorganic hydraulic materials such as cement, aggregates, etc.
A widely used method is to mix it with ~ and spray it.
しかし、金属繊維混入セメントは壁面に吹付けだ際金属
繊維の重量が重いため、壁面からの・・不返りが多く、
吹付当初は金属繊維のきわめて少ないセメント者を形成
し、金属繊維の不均一なセメント層を形成するという欠
点がある。However, when cement mixed with metal fibers is sprayed onto a wall, the weight of the metal fibers is heavy, so there is a lot of non-return from the wall.
At the beginning of spraying, it has the disadvantage of forming a cement layer with very few metal fibers and forming a non-uniform cement layer of metal fibers.
また、セメントで完全に被覆されていない金属繊維は大
気中で腐蝕し、セメントで完全に被覆されたとしても海
砂夕飛来塩分によって腐蝕する可能性があり、補強材と
して充分な役割を果し得ないというおそれもある。In addition, metal fibers that are not completely covered with cement corrode in the atmosphere, and even if they are completely covered with cement, there is a possibility that they will be corroded by sea sand and salt flying in the evening, so they cannot play a sufficient role as a reinforcing material. There is also a possibility that you will not get it.
他方、セメント等の無機質水硬性材料にガラス繊維（チ
ョツプドストランド）を混入することも知られている。On the other hand, it is also known to mix glass fibers (chopped strands) into inorganic hydraulic materials such as cement.
一般に補強材としての繊維をセメント等に混入すること
は困難であり、そのため従来オムニミキサー等の如く特
殊な専用機械を使用している。Generally, it is difficult to mix fibers as a reinforcing material into cement, etc., and therefore a special dedicated machine such as an omni-mixer is conventionally used.
しかし、オムニミキサー等の特殊専用機械は、土木、建
築現場での適用性、汎用性を著るしく欠くことのほかに
、オムニミキサーによる混合攪拌又はエアー圧送の場合
、チョツプドストランドが解繊又は破損し、その結果表
面積の大きい短繊維に対する水分吸着現象を起こし、補
強効果の指標であるタフネスがなく、しかもガラス繊維
が層状に配向したものとなり、従ってガラス繊維の分散
性に劣ると共にセメント中のアルカリと容易に反応し、
硬化後の繊維補強材料の補強効果を充分に発揮できない
という欠点がある。However, special dedicated machines such as the omni mixer are significantly lacking in applicability and versatility at civil engineering and construction sites.In addition, when using the omni mixer for mixing and agitation or air pressure feeding, the chopped strands are defibrated. As a result, the short fibers with a large surface area will adsorb water, and the glass fibers will lack toughness, which is an indicator of reinforcing effect, and the glass fibers will be oriented in layers. easily reacts with alkalis,
There is a drawback that the reinforcing effect of the fiber reinforcing material after curing cannot be fully demonstrated.
本発明は上述従来の欠点を改善し、ガラス繊維その他補
強に供される短繊維の解繊又は損傷を防止すると共に、
該短繊維の均一分散性を図シ、もって充分な繊維補強効
果を得ると共に、施行現場において簡単に吹付けが達成
できる繊維補強セメントの吹付方法及びその装置を提供
することにある。The present invention improves the above-mentioned conventional drawbacks, prevents fibrillation or damage to glass fibers and other short fibers used for reinforcement, and
It is an object of the present invention to provide a method and apparatus for spraying fiber-reinforced cement, which can obtain a sufficient fiber-reinforcing effect by uniformly dispersing the short fibers, and can easily achieve spraying at the construction site.
本出願の第１の発明は、ガラス繊維その他有機質又は無
機質繊維の短繊維をセメント等の無機質水硬性材料、−
骨材及び水等の混合物からなる繊維補強複合材料を吹付
けるに当り、セメント等の無機質水硬性材料、骨材を圧
搾空気により吹付ノズルに圧送供給すると共に、吹付ノ
ズルを含む混合域で前記短繊維を前記無機質水硬性材料
、骨材に乾式で混合した後これに水を供給し、吹付ノズ
ル内で混合撹拌しつゝ前記圧搾空気の圧力で吹付ける繊
維補強複合材料の吹付方法である。The first invention of the present application is to use short fibers of glass fiber or other organic or inorganic fibers in an inorganic hydraulic material such as cement, -
When spraying a fiber-reinforced composite material consisting of a mixture of aggregate, water, etc., the inorganic hydraulic material such as cement and the aggregate are fed under pressure to the spray nozzle using compressed air, and at the same time the short This is a method of spraying a fiber-reinforced composite material, in which fibers are dry mixed with the inorganic hydraulic material and aggregate, water is supplied thereto, the mixture is mixed and stirred in a spray nozzle, and the mixture is sprayed under the pressure of the compressed air.
１だ、第２の発明は先端に吹付ノズルを有し、かつ、セ
メント等の無機質水硬性材料又は骨材等を圧搾空気で圧
送する圧送装置に連結されているメインホースを有する
吹付装置において、先端部の吹付ノズルの基部に給水パ
イプが連通されており、他方前記吹付ノズル基部近傍の
前記圧送路には短繊維の導入パイプが連通されている繊
維補強複合材料の吹付装置である。1. The second invention is a spraying device having a spraying nozzle at the tip and having a main hose connected to a pumping device for pumping an inorganic hydraulic material such as cement or aggregate with compressed air, A spraying device for fiber-reinforced composite material, in which a water supply pipe is connected to the base of the spray nozzle at the tip, and a short fiber introduction pipe is connected to the pressure feed path near the base of the spray nozzle.
第２の発明の吹付装置における短繊維の導入パイプは、
メインホースより直径の小なるものであって、先端部の
吹付ノズル近傍のメインホース周壁を外側から内側に連
通されており、内側の部分はメインホース内のセメント
等の無機質水硬性材料、骨材の圧送方向で、かつ、メイ
ンホースの軸に沿って折曲げられ、前記吹付ノズルの僅
か手前の位置に開口しており、さらに圧送方向前方の吹
付ノズル基部に給水パイプが連通されている。The short fiber introduction pipe in the spraying device of the second invention is:
It is smaller in diameter than the main hose, and communicates with the main hose surrounding wall near the spray nozzle at the tip from the outside to the inside, and the inside part is made of inorganic hydraulic material such as cement and aggregate inside the main hose. It is bent in the pumping direction and along the axis of the main hose, opens at a position slightly in front of the spray nozzle, and further communicates with a water supply pipe at the base of the spray nozzle in front of the pumping direction.
尚、前記吹付装置のメインホースの他端は、セメント等
の無機質水硬性材料又は骨材を圧搾空気で圧送する圧送
装置に連結している。The other end of the main hose of the spraying device is connected to a pumping device that pumps an inorganic hydraulic material such as cement or aggregate using compressed air.
第２の発明の装置を用いて繊維補強複合材料を吹付ける
には、メインホース他端に取付けられている圧送装置を
稼動させ、セメント等の無機質水硬材料又は骨材のみを
圧搾空気でメインホース内に供給する。それと共に、吹
付ノズル基部近傍の圧送路に連通している短繊維の導入
パイプから所定量の短繊維を圧搾空気で圧送し、メイン
ホース内のセメント等の無機質水硬性材料、骨材に供給
する。本発明で使用する短繊維はガラス繊維のほかアラ
ミド繊維、炭素繊維。In order to spray the fiber-reinforced composite material using the device of the second invention, the pressure feeding device attached to the other end of the main hose is operated, and only the inorganic hydraulic material such as cement or aggregate is sprayed onto the main hose with compressed air. Supply into the hose. At the same time, a predetermined amount of short fibers is pumped with compressed air from the short fiber introduction pipe connected to the pressure feed path near the base of the spray nozzle, and supplied to the inorganic hydraulic material such as cement and aggregate in the main hose. . The short fibers used in the present invention include glass fibers, aramid fibers, and carbon fibers.
金属繊維等の補強に供される有機質繊維、無機質繊維等
の各種の短繊維が使用できる。Various short fibers such as organic fibers and inorganic fibers used for reinforcing metal fibers can be used.
前記のように短繊維を圧送、混合した時点では、水は全
く使用されていないため、所謂乾式の状態で混合され、
その後、吹付ノズル基部の給水パイプから所定量の水を
供給され、吹付ノズル内部で混合攪拌されつ＼吹付ノズ
ルから吹付けられる。When the short fibers are pumped and mixed as described above, no water is used, so they are mixed in a so-called dry state.
Thereafter, a predetermined amount of water is supplied from the water supply pipe at the base of the spray nozzle, mixed and stirred inside the spray nozzle, and then sprayed from the spray nozzle.
即ち、本発明は、繊維補強複合材料は、予じめ短繊維を
セメント等の無機質水硬性材料に混合することなく、吹
付ノズル近傍に於て圧送されてくるセメント等の無機質
水硬性材料に見合う僅かづ＼の短繊維を乾式混合し、さ
らに水を供給して混合攪拌するだめ、従来のオムニミキ
サーの如き特殊専用機械を使用していないため、短繊維
の解繊又は損傷は殆んどない。That is, the present invention provides that the fiber-reinforced composite material is compatible with inorganic hydraulic materials such as cement that are pumped near the spray nozzle without mixing short fibers with the inorganic hydraulic materials such as cement in advance. Only a small amount of short fibers are dry-mixed, and then water is supplied to mix and agitate, and special dedicated machines such as conventional omni mixers are not used, so there is almost no defibration or damage to the short fibers. .
壕だ、本発明はメインホースで圧送されているセメント
等の無機質水硬性材料又は骨材に、その量に見合う僅か
づつの短繊維を連続的に供給して混合するため、短時間
で短繊維を均一に混合することができる。Well, the present invention continuously supplies and mixes short fibers corresponding to the amount of inorganic hydraulic material such as cement or aggregate that is being pumped through a main hose, so short fibers can be mixed in a short time. can be mixed uniformly.
第１図は本発明の装置の一実施例を示したものであるが
、つぎに図示例によって本発明を具体的に説明する。メ
インホース１の先端部に吹付ノズル２が取付けられてい
る。該メインホース１の先端にはステイール製の筒３が
取付けられており、さらにその先端に、ウォーターリン
グ４を介して吹付ノズル２が取付けられており、他方該
ステイール製の筒３の後端部にゴム製のフレキシブルホ
ース５が取付けられている。FIG. 1 shows one embodiment of the apparatus of the present invention. Next, the present invention will be specifically explained with reference to an illustrated example. A spray nozzle 2 is attached to the tip of the main hose 1. A steel tube 3 is attached to the tip of the main hose 1, and a spray nozzle 2 is attached to the tip via a water ring 4, while a rear end of the steel tube 3 is attached to the tip of the main hose 1. A flexible hose 5 made of rubber is attached to.
尚、前記フレキシブルホース５の他端は、図示を省略し
たが、セメント等の無機質水硬性材料、骨材をメインホ
ース１に圧送するための圧送装置に連結されている。Although not shown, the other end of the flexible hose 5 is connected to a pumping device for pumping an inorganic hydraulic material such as cement or aggregate to the main hose 1.
前記ウォーターリング４には、給水ホース６が取付けら
れている。また、前記筒３の周壁を外側から内側に、腋
部３の直径より小さい直径の導入パイシフが先端を吹付
ノズル２に向けて斜めに連通されている。A water supply hose 6 is attached to the water ring 4. Further, an introduction pipe sif with a diameter smaller than the diameter of the armpit portion 3 is obliquely communicated from the outside to the inside of the peripheral wall of the cylinder 3 with its tip facing the spray nozzle 2.
該導入パイプ７は、筒３の内側において、筒３の軸に沿
って折曲げられ、吹付ノズル２の基部の僅か手前の位置
に開口している。尚、該導入パイプ７の先端開口位置は
、適宜前後に調整できるようになっている。The introduction pipe 7 is bent along the axis of the cylinder 3 inside the cylinder 3, and opens at a position slightly in front of the base of the spray nozzle 2. Incidentally, the opening position of the tip of the introduction pipe 7 can be adjusted back and forth as appropriate.
本発明の装置で吹付施工をするには先づ常法に従ってフ
レキシブルホース５他端の圧送装置を稼動させてセメン
ト等の無機質水硬性材料。To carry out spraying using the apparatus of the present invention, first operate the pressure feeding device at the other end of the flexible hose 5 according to a conventional method to spray an inorganic hydraulic material such as cement.
骨材を圧搾空気によってメインホース１内へ圧送する。The aggregate is pumped into the main hose 1 by compressed air.
それと同時に、メインホース１の筒３に連通されている
導入パイプ７から所定量のチョツプドストランドをメイ
ンホース１内を圧送されているセメント等の無機質水硬
性材料又は骨材中に供給する。この場合、チョツプドス
トランドの供給は、メインホース１の無機質水硬性材料
等と同様圧搾空気によって供給すればよく、筐たその量
は圧搾空気の圧力を適宜調節することによって、その供
給量を調整することができる。At the same time, a predetermined amount of chopped strands is supplied from the introduction pipe 7 communicating with the cylinder 3 of the main hose 1 into the inorganic hydraulic material such as cement or aggregate that is being pumped through the main hose 1. In this case, the chopped strands may be supplied by compressed air in the same way as the inorganic hydraulic material of the main hose 1, and the amount of the chopped strands can be controlled by adjusting the pressure of the compressed air as appropriate. Can be adjusted.
本発明はチョツプドストランドに形成されているものを
供給するものであるが、場合によりロービングを切断し
、チョツプドストランドとして使用することもできる。Although the present invention supplies chopped strands, the rovings may be cut and used as chopped strands if necessary.
第２図及び第３図は、ロービングを切断してチョノフ０
トストランドを製造する切断装置でちって、架台８上面
に圧搾空気で駆動する回転カッター９が取付けられて２
す、該カッター９の切断部直下にチョツプドストランド
の取出パイプ１０が取付けられたものである。Figures 2 and 3 show how to cut the roving and
A rotary cutter 9 driven by compressed air is attached to the top surface of a pedestal 8, and a cutter 9 is used for producing the strands.
A chopped strand take-out pipe 10 is attached directly below the cutting portion of the cutter 9.
即ち、圧搾空気を供給して回転カッター９を回転し、こ
れにロービング１１を送り込んで所定の長さのチョツプ
ドストランドに連続的に切ｔｌ Ｌ、、該チョツプドス
トランドを取出パイプ１０から取出し、これを直接前記
吹付装置の導入パイプ７へ供給すればよい。That is, compressed air is supplied to rotate the rotary cutter 9, and the roving 11 is fed into the cutter 9 to continuously cut chopped strands of a predetermined length.The chopped strands are taken out from the pipe 10. It is sufficient to take it out and supply it directly to the introduction pipe 7 of the spraying device.
前記の切断装置は構造簡単なものであり、これを直接吹
付現場に搬入し、ロービング１１かも直接チョツプドス
トランドを製造できるだめ、吹付施工の能率化が図られ
る。尚、第１図における前記筒３は必らずしもステイー
ル製である必要はなく、アルミニウム若しくはアルミニ
ウム合金又はセラミック製でもよい。壕だ、第２図及び
第３図における回転カッタ９は電励回伝カッターであっ
てもよい。The above-mentioned cutting device has a simple structure, and it can be carried directly to the spraying site and chopped strands can be produced directly from the roving 11, thereby streamlining the spraying work. The tube 3 in FIG. 1 is not necessarily made of stainless steel, but may be made of aluminum, aluminum alloy, or ceramic. However, the rotary cutter 9 in FIGS. 2 and 3 may be an electrically excited circular cutter.
第４図はモルタル単独、金属繊維入り複合材料及び本発
明で得られたチョツプドストランド入り複合材料の曲げ
強度と材令との関係、第５図は第４図と同一材料の夫々
圧縮強度と材令との関係を示したものである。Figure 4 shows the relationship between bending strength and material age for mortar alone, a composite material containing metal fibers, and a composite material containing chopped strands obtained by the present invention, and Figure 5 shows the compressive strength of the same materials as in Figure 4. This shows the relationship between this and the material ordinance.
第４図及び第５図から明らかなように本発明によって得
られたチョップ１ストランド入シ複合材料は、曲げ強度
は金属繊維入り複合材料より優れており、また圧縮強度
でも金属繊維入り複合材料に四散する強度を得ることが
できる。As is clear from FIGS. 4 and 5, the chopped one-strand composite material obtained by the present invention has a bending strength superior to that of a metal fiber-containing composite material, and a compressive strength superior to that of a metal fiber-containing composite material. You can obtain strength that is dispersed throughout.
第６図は繊維補強複合材料の撓みに対する血げ荷重のグ
ラフである。尚、この場合の試験条件は、何れも水／セ
メント＝５０％、セメント／砂＝騒 、ｖ（Ｃセメント
容量％） −１，５係及び材令１日であり、また供試体
寸法は１５Ｘ１５×５３ＣｒＩＴである。FIG. 6 is a graph of warping load versus deflection of the fiber-reinforced composite material. The test conditions in this case are water/cement = 50%, cement/sand = noise, v (C cement volume %) -1, 5, and material age 1 day, and the specimen size is 15 x 15. ×53CrIT.
第６図から明らかなように、本発明の方法で得られる繊
維補強複合材料は、従来法に比較して大巾にタフネスを
改善できることが認められる。As is clear from FIG. 6, it is recognized that the fiber-reinforced composite material obtained by the method of the present invention can greatly improve the toughness compared to the conventional method.
以上の如く本発明は繊維補強複合材料を吹付けるに当り
、吹付直前に補強繊維の短繊維を乾式でセメント等の無
機質水硬性材料又は骨材に混合した後、これに水を加え
て吹付ノズル内で攪拌混合しつ〜吹付けるものであるか
ら、短鷹維の解繊又は損傷は殆んどなく、しかも均一に
混合できるから充分な繊維補強効果を得ることができる
。As described above, when spraying a fiber-reinforced composite material, the present invention involves dryly mixing short fibers of reinforcing fibers with an inorganic hydraulic material such as cement or aggregate, and then adding water to the mixture and using the spray nozzle. Since the fibers are agitated and mixed in the chamber and then sprayed, there is almost no fibrillation or damage to the short fibers, and since they can be mixed uniformly, a sufficient fiber reinforcing effect can be obtained.
寸だ、本発明は吹付直前に乾式で短繊維を混合できるだ
め、装置が簡単、かつ、コンパクトであり、土木建築等
の吹付施工現場で簡単に取扱うことができるため吹付施
工能率を大巾に向上することができる。The present invention allows short fibers to be mixed dry just before spraying, and the equipment is simple and compact, making it easy to handle at spraying construction sites such as civil engineering and construction, greatly increasing spraying efficiency. can be improved.
第１図は本発明の装置の一実施例の説明図、第２図はロ
ービング切断装置の一例の平面図、第３図はその正面図
、第４図は曲げ強度と材令の関係を示すグラフ、第５図
は圧縮強度と材令の関係を示すグラフ、第６図は撓みと
曲げ荷重との関係を示すグラフである。
１：メインホース、２：吹付ノズル、３ニステイール製
筒、４：フレキシブルホース、５：給水ホース、６：導
入パイプ、７：架台、８：回転カッター、９：取出パイ
プ、１０：ロービング。Fig. 1 is an explanatory diagram of an embodiment of the device of the present invention, Fig. 2 is a plan view of an example of the roving cutting device, Fig. 3 is a front view thereof, and Fig. 4 shows the relationship between bending strength and material age. FIG. 5 is a graph showing the relationship between compressive strength and material age, and FIG. 6 is a graph showing the relationship between deflection and bending load. 1: Main hose, 2: Spray nozzle, 3 Nisteel cylinder, 4: Flexible hose, 5: Water supply hose, 6: Inlet pipe, 7: Frame, 8: Rotary cutter, 9: Output pipe, 10: Roving.
Claims (2)
繊維とセメント等の無機質水硬性材料、骨材及び水等の
混合物からなる繊維補強複合材料を吹付けるに当り、セ
メント等の無機質水硬性材料、骨材を圧搾空気により吹
付ノズルに圧送供給すると共に、吹付ノズルを含む混合
域で前記短繊維を前記無機質水硬性材料、骨材に乾式で
混合した後これに水を供給し、吹付ノズル内で混合撹拌
しつゝ前記圧搾空気の圧力で吹付けることを特徴とする
繊維補強複合材料の吹付方法。(1) When spraying a fiber-reinforced composite material consisting of a mixture of short fibers of glass fibers, other organic fibers, or inorganic fibers, an inorganic hydraulic material such as cement, aggregate, water, etc., inorganic hydraulic materials such as cement, The aggregate is force-fed to the spray nozzle using compressed air, and the short fibers are dry mixed with the inorganic hydraulic material and the aggregate in a mixing zone including the spray nozzle, and then water is supplied thereto. A method for spraying a fiber-reinforced composite material, which comprises spraying using the pressure of the compressed air while mixing and stirring.
機質水硬性材料、骨材等を圧搾空気で圧送する圧送装置
に連結されているメインホースを有する吹付装置におい
て、先端部の吹付ノズルの基部に給水パイプが連通され
ており、他方前記吹付ノズル基部近傍の前記圧送路には
、短繊維の導入パイプが連通されていることを特徴とす
る繊維補強複合材料の吹付装置。(2) In a spraying device having a spray nozzle at the tip and a main hose connected to a pumping device that pumps inorganic hydraulic materials such as cement, aggregate, etc. with compressed air, the spray nozzle at the tip A spraying device for a fiber-reinforced composite material, characterized in that a water supply pipe is connected to the base of the spray nozzle, and a short fiber introduction pipe is connected to the pressure feeding path near the base of the spray nozzle.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61179366A JP2591943B2 (en) | 1986-07-30 | 1986-07-30 | Spraying method and apparatus for fiber reinforced composite material |
| US07/076,257 US4844340A (en) | 1986-07-30 | 1987-07-21 | Method and apparatus for spraying an inorganic hydraulic material composition containing reinforcing short fibers |
| GB8717935A GB2193118B (en) | 1986-07-30 | 1987-07-29 | Method and apparatus for spraying an inorganic hydraulic material composition containing reinforcing short fibers |
| HK376/91A HK37691A (en) | 1986-07-30 | 1991-05-16 | Method and apparatus for spraying an inorganic hydraulic material composition containing reinforcing short fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61179366A JP2591943B2 (en) | 1986-07-30 | 1986-07-30 | Spraying method and apparatus for fiber reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6339655A true JPS6339655A (en) | 1988-02-20 |
| JP2591943B2 JP2591943B2 (en) | 1997-03-19 |
Family
ID=16064595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61179366A Expired - Lifetime JP2591943B2 (en) | 1986-07-30 | 1986-07-30 | Spraying method and apparatus for fiber reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2591943B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141256A1 (en) * | 1990-12-27 | 1992-07-02 | Asmo Co Ltd | METHOD AND DEVICE FOR CORRECTING THE DYNAMIC BALANCE OF ROTATING BODIES |
| JPH0576546U (en) * | 1992-03-25 | 1993-10-19 | 株式会社ジェー・フェック | Spray nozzle for fiber reinforced solidification material |
| JPH0666026A (en) * | 1992-01-16 | 1994-03-08 | Ee G K:Kk | Spraying work method and spraying device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354830A (en) * | 1976-10-26 | 1978-05-18 | Bertil Sandell | Method of and device for feeding material in air flow to nozzle |
-
1986
- 1986-07-30 JP JP61179366A patent/JP2591943B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354830A (en) * | 1976-10-26 | 1978-05-18 | Bertil Sandell | Method of and device for feeding material in air flow to nozzle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141256A1 (en) * | 1990-12-27 | 1992-07-02 | Asmo Co Ltd | METHOD AND DEVICE FOR CORRECTING THE DYNAMIC BALANCE OF ROTATING BODIES |
| US5267140A (en) * | 1990-12-27 | 1993-11-30 | Asmo Co. Ltd. | Method of apparatus for correcting dynamic balance of rotatable member |
| JPH0666026A (en) * | 1992-01-16 | 1994-03-08 | Ee G K:Kk | Spraying work method and spraying device |
| JPH0576546U (en) * | 1992-03-25 | 1993-10-19 | 株式会社ジェー・フェック | Spray nozzle for fiber reinforced solidification material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2591943B2 (en) | 1997-03-19 |
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