JPH10100128A - Production of precast member - Google Patents
Production of precast memberInfo
- Publication number
- JPH10100128A JPH10100128A JP8259753A JP25975396A JPH10100128A JP H10100128 A JPH10100128 A JP H10100128A JP 8259753 A JP8259753 A JP 8259753A JP 25975396 A JP25975396 A JP 25975396A JP H10100128 A JPH10100128 A JP H10100128A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- reinforcing fibers
- hardening material
- reinforcing
- manufacturing
- 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
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、プレキャスト部
材の製造方法に関し、特に、補強用ファイバーを含有さ
せたプレキャスト部材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 manufacturing a precast member, and more particularly to a method for manufacturing a precast member containing reinforcing fibers.
【０００２】[0002]
【従来の技術】プレキャスト型枠やカーテンウォールな
どに使用されるプレキャスト部材には、コンクリートの
打設側圧，風圧，地震力などが作用したときに、大きな
曲げ荷重がかかる。このようなプレキャスト部材を、例
えば、３から１０ｃｍ程度の厚みを有するパネルにした
場合には、曲げ荷重に耐えうるために、高曲げ強度の材
料を使用しなければならない。2. Description of the Related Art A large bending load is applied to a precast member used for a precast formwork, a curtain wall, or the like when a concrete placing pressure, a wind pressure, an earthquake force, or the like is applied. When such a precast member is formed into a panel having a thickness of, for example, about 3 to 10 cm, a material having high bending strength must be used in order to withstand a bending load.
【０００３】そこで、従来は、鋼製繊維やビニロン繊維
などの補強用ファイバーをコンクリート中に混入したフ
ァイバー補強コンクリートが、このような用途のプレキ
ャスト部材に採用されていた。Therefore, conventionally, fiber-reinforced concrete in which reinforcing fibers such as steel fibers and vinylon fibers are mixed in concrete has been used as a precast member for such a purpose.
【０００４】ファイバー補強コンクリートでプレキャス
ト部材を製造する際には、補強用ファイバーをコンクリ
ート中に投入して、撹袢混合機により、これらを混練
し、型枠内に打設することにより製造していた。When producing a precast member using fiber-reinforced concrete, reinforcing fibers are put into concrete, kneaded with a stirring mixer, and cast into a mold. Was.
【０００５】しかしながら、このようなプレキャスト部
材の製造方法には、以下に説明する技術的な課題があっ
た。However, such a method of manufacturing a precast member has the following technical problems.
【０００６】[0006]
【発明が解決しようとする課題】すなわち、コンクリー
トに補強用ファイバーを混入して混練するプレキャスト
部材の製造方法では、コンクリートの構成材料と補強用
ファイバーとの比重差が大きいので、ファイバーボール
と呼ばれるファイバー塊が混練中に発生し、補強用ファ
イバーをコンクリート中に均一に分散することが難し
く、その結果、補強用ファィバーをコンクリート中に２
重量％程度しか混入することができなかった。That is, in the method of manufacturing a precast member in which reinforcing fibers are mixed with concrete and kneaded, the difference in specific gravity between the concrete constituent material and the reinforcing fibers is large, so that a fiber called a fiber ball is used. Lumps are generated during kneading, and it is difficult to uniformly disperse the reinforcing fibers in the concrete. As a result, the reinforcing fibers are dispersed in the concrete.
Only about% by weight could be mixed.
【０００７】本発明は、このような従来の問題点に鑑み
てなされたものであって、その目的とするところは、補
強用ファイバーを６重量％以上混入することができるプ
レキャスト部材の製造方法を提供すことにある。The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a method of manufacturing a precast member in which reinforcing fibers can be mixed in at least 6% by weight. To provide.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、第一発明は、型枠内に短繊維状の補強用ファイバー
を嵩高状に積み重ね、前記補強用ファイバー間に硬化材
が介在するように注入する。このようなプレキャスト部
材の製造方法によれば、硬化材中に補強用ファイバーを
混練する方法と異なり、嵩高状に積み重ねた補強用ファ
イバー中に硬化材を注入して、ファイバー間に硬化材が
介在するようにする方法なので、補強用ファイバーを硬
化材の６重量％以上混入させても、ファイバーボールが
発生しない。また、第二の発明では、型枠内に硬化材を
充填し、前記硬化材の上方から補強用ファイバーを散布
し、散布された前記補強用ファイバーを振動により前記
硬化材中に沈降させるようにした。このように構成した
第二発明においても、補強用ファイバーを振動により硬
化材中に沈降させるので、補強用ファイバーを硬化材の
６重量％以上混入させても、ファイバーボールが発生し
ない。本発明の製造方法においては、硬化材は、例え
ば、セメント，モルタル，コンクリートなどの水硬性硬
化材、あるいは、各種の硬化性合成樹脂、さらには、こ
れらを組合わせた硬化材を使用することができる。ま
た、短繊維状の補強用ファイバーには、鋼製などの金属
繊維やビニロンなどの合成樹脂繊維，炭素繊維，アラミ
ド繊維などから選択することができる。上記第一の発明
においては、前記型枠内に前記補強用ファイバーを嵩高
状に積み重ねた後に、空気抜き用の孔部が設けられ蓋板
を装着し、しかる後に、前記型枠内に前記硬化材を注入
することができる。この構成の場合は、合成樹脂繊維や
アラミド繊維などの比較的比重が小さい補強用ファイバ
ーを採用したときに、硬化材の注入により補強用ファイ
バーの浮き上がりを防止することができる。Means for Solving the Problems To achieve the above object, the first invention is to stack short fiber-like reinforcing fibers in a form in a bulky manner, and a hardening material is interposed between the reinforcing fibers. To be injected. According to the method for manufacturing such a precast member, unlike the method of kneading the reinforcing fibers in the hardening material, the hardening material is injected into the reinforcing fibers stacked in a bulky shape, and the hardening material is interposed between the fibers. Therefore, no fiber ball is generated even if the reinforcing fiber is mixed in at least 6% by weight of the hardening material. Further, in the second invention, the mold is filled with a hardening material, the reinforcing fibers are scattered from above the hardening material, and the scattered reinforcing fibers are settled in the hardening material by vibration. did. Also in the second invention having such a configuration, since the reinforcing fibers are settled in the hardening material by vibration, no fiber ball is generated even if the reinforcing fibers are mixed in 6% by weight or more of the hardening material. In the manufacturing method of the present invention, as the hardening material, for example, a hydraulic hardening material such as cement, mortar, or concrete, or various hardening synthetic resins, or a hardening material in which these are combined may be used. it can. In addition, the short fiber reinforcing fibers can be selected from metal fibers such as steel, synthetic resin fibers such as vinylon, carbon fibers, and aramid fibers. In the first invention, after the reinforcing fibers are stacked in a bulky shape in the mold, an air vent hole is provided and a cover plate is attached, and thereafter, the hardening material is placed in the mold. Can be injected. In the case of this configuration, when a reinforcing fiber having a relatively small specific gravity, such as a synthetic resin fiber or an aramid fiber, is used, it is possible to prevent the reinforcing fiber from rising by injecting a hardening material.
【０００９】[0009]
【発明の実施の形態】以下、本発明の好適な実施の形態
について、添付図面に基づいて詳細に説明する。図１
は、本発明にかかるプレキャスト部材の製造方法の第１
実施例を示している。同図に示すプレキャスト部材の製
造方法は、本発明を、厚みが３〜１０ｃｍ程度のプレキ
ャストパネルを製造する際に適用した場合を例示してい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG.
Is a first method of manufacturing a precast member according to the present invention.
An example is shown. The method for manufacturing a precast member shown in the figure illustrates a case where the present invention is applied to manufacture a precast panel having a thickness of about 3 to 10 cm.
【００１０】プレキャストパネルを製造する際には、製
造しようとするパネルの形状にあった型枠１２が準備さ
れ、図１（Ａ）に示すように、上端側が開放された型枠
１２内に、補強用ファイバー１４が、相互に絡み合った
状態で、ファイバー１４間に空間が形成される嵩高状に
積み重ねられる。When a precast panel is manufactured, a mold frame 12 having a shape of the panel to be manufactured is prepared, and as shown in FIG. The reinforcing fibers 14 are stacked in a bulky shape in which a space is formed between the fibers 14 in a state of being entangled with each other.
【００１１】補強用ファイバー１４は、所定のアスペク
ト比になるように切断された短繊維状のものであって、
鋼製などの金属繊維やビニロンなどの合成樹脂繊維，炭
素繊維，アラミド繊維などから選択される。The reinforcing fibers 14 are in the form of short fibers cut to have a predetermined aspect ratio.
It is selected from metal fibers such as steel, synthetic resin fibers such as vinylon, carbon fibers, and aramid fibers.
【００１２】この場合の補強用ファイバー１４の量は、
後述する硬化材１６の重量に対して、で６重量％以上に
なるように設定される。補強用ファイバー１４の積み重
ねが終了すると、図１（Ｂ）に示すように、嵩高状に積
み重ねた補強用ファイバー１４の上方から硬化材１６が
注入される。In this case, the amount of the reinforcing fiber 14 is
It is set so as to be 6% by weight or more with respect to the weight of the hardening material 16 described later. When the stacking of the reinforcing fibers 14 is completed, as shown in FIG. 1B, the hardening material 16 is injected from above the bulky stacked reinforcing fibers 14.
【００１３】このときに使用される硬化材１６は、例え
ば、セメント，モルタル，コンクリートなどの水硬性硬
化材、あるいは、各種の硬化性合成樹脂、さらには、こ
れらを組合わせた硬化材を使用することができる。As the hardening material 16 used at this time, for example, a hydraulic hardening material such as cement, mortar, concrete or the like, various hardening synthetic resins, or a hardening material in which these are combined is used. be able to.
【００１４】所定量の硬化材１６の注入が終了すると、
型枠１２は、振動テーブル１８上に載置され、硬化材１
６および補強用ファイバー１４に所定周波数の振動を加
えることにより締め固め、補強用ファイバー１４間に硬
化材１６を充填させる。When the injection of the predetermined amount of the hardening material 16 is completed,
The mold 12 is placed on the vibration table 18 and the hardening material 1
6 and the reinforcing fibers 14 are compacted by applying vibration of a predetermined frequency, and the hardening material 16 is filled between the reinforcing fibers 14.
【００１５】そして、所定時間静置した後に、表面仕上
げを施して、蒸気養生などを行った後に、脱型すること
によりプレキャストパネルを製造する。[0015] After standing for a predetermined time, a surface finish is applied, steam curing is performed, and the mold is removed to produce a precast panel.
【００１６】このように構成されたプレキャスト部材の
製造方法によれば、硬化材１６中に補強用ファイバー１
４を混練する方法と異なり、嵩高状に積み重ねた補強用
ファイバー１４中に硬化材１６を注入して、ファイバー
１４間にこれを介在させる方法なので、補強用ファイバ
ー１４を硬化材１６の６重量％以上混入させても、ファ
イバーボールが発生しない。According to the method for manufacturing a precast member having the above-described structure, the reinforcing fiber 1
Unlike the method of kneading 4, the hardening material 16 is injected into the bulky reinforcing fibers 14 and interposed between the fibers 14, so that the reinforcing fibers 14 are 6% by weight of the hardening material 16. Even if mixed, fiber balls are not generated.
【００１７】従って、曲げ強度が、従来の２重量％混入
で１０Ｎ／ｍｍ2程度しか得られないのに対して、本実
施例の場合には、曲げ強度を２０Ｎ／ｍｍ2以上にする
ことが可能になる。Therefore, while the bending strength can be obtained only about 10 N / mm 2 by mixing the conventional 2% by weight, in the case of the present embodiment, the bending strength is set to 20 N / mm 2 or more. Will be possible.
【００１８】以下に示した表１は、本実施例の製造方法
の作用効果を確認するために行った実証実験の結果を示
している。この実証実験では、供試体の縦，横，高さを
それぞれ１００ｍｍ×１００ｍｍ×４００ｍｍとし、補
強用ファイバーには、直径が０．６ｍｍで長さが２５ｍ
ｍと、直径が０．７ｍｍで長さが５０ｍｍの２種類の鋼
繊維と、直径が０．４ｍｍで長さが２４ｍｍのビニロン
繊維とを使用し、硬化材には、表１に示した配合比のセ
メントミルクとモルタルとを使用した。Table 1 shown below shows the results of a verification experiment conducted to confirm the operation and effect of the manufacturing method of this embodiment. In this demonstration experiment, the length, width, and height of the specimen were 100 mm × 100 mm × 400 mm, respectively, and the reinforcing fiber had a diameter of 0.6 mm and a length of 25 m.
m, two types of steel fibers having a diameter of 0.7 mm and a length of 50 mm, and a vinylon fiber having a diameter of 0.4 mm and a length of 24 mm. Ratio cement milk and mortar were used.
【００１９】[0019]
【表１】 [Table 1]
【００２０】表１に示した結果から明らかなように、本
実施例の製造方法によれば、曲げ強度などの曲げ特性が
大きく向上する。As is clear from the results shown in Table 1, according to the manufacturing method of this embodiment, bending characteristics such as bending strength are greatly improved.
【００２１】図２は、本発明にかかるプレキャスト部材
の製造方法の第２実施例を示している。同図に示す製造
方法では、第１実施例と同様に上端が開口した型枠１２
ａが用いられる。この型枠１２ａの一端側には、硬化材
１６の注入口１２ｂが設けられている。FIG. 2 shows a second embodiment of the method for manufacturing a precast member according to the present invention. In the manufacturing method shown in the figure, the mold 12 having the upper end opened like the first embodiment.
a is used. An injection port 12b for the hardening material 16 is provided at one end of the mold frame 12a.
【００２２】また、型枠１２ａの上端開口は、蓋板１２
ｃにより閉塞されるようになっていて、蓋板１２ｃの一
端側には、空気抜き用の排気口１２ｄが設けられてい
る。このような型枠１２ａを使用してプレキヤストパネ
ルを製造する際には、まず、上記実施例と同様に、型枠
１２ａ内に補強用ファイバー１４が嵩高状に積み重ねら
れる。The upper end opening of the mold frame 12a is
c, and one end side of the cover plate 12c is provided with an air vent 12d for venting air. When manufacturing a precast panel using such a formwork 12a, first, the reinforcing fibers 14 are stacked in a bulky manner in the formwork 12a, as in the above embodiment.
【００２３】そして、型枠１２ａに蓋板１２ｃ装着し
て、内部を閉塞した後に、注入口１２ｂから硬化材１６
が注入され、補強用ファイバー１４間に介在させられ
る。硬化材１６の注入後は、上記実施例と同様に所定時
間静置した後に、表面仕上げを施して、蒸気養生などを
行った後に、脱型することによりプレキャストパネルを
製造する。After the lid 12c is mounted on the mold 12a and the inside is closed, the hardening material 16
Is injected and interposed between the reinforcing fibers 14. After injecting the hardening material 16, the precast panel is manufactured by leaving it to stand for a predetermined period of time in the same manner as in the above embodiment, performing surface finishing, performing steam curing and the like, and then removing the mold.
【００２４】このように構成した第二実施例において
も、上記実施例と同様に、補強用ファイバー１４を硬化
材１６の６重量％以上混入させても、ファイバーボール
が発生せず、曲げ強度が２０Ｎ／ｍｍ2以上のプレキャ
ストパネルが得られるとともに、本実施例の場合には、
合成樹脂繊維やアラミド繊維などの比較的比重が小さい
補強用ファイバー１４を採用したときに、硬化材１６の
注入により補強用ファイバー１４の浮き上がりを防止す
ることができる。In the second embodiment constructed as described above, similarly to the above-described embodiment, even if the reinforcing fibers 14 are mixed in 6% by weight or more of the hardening material 16, no fiber balls are generated and the bending strength is reduced. A precast panel of 20 N / mm 2 or more is obtained, and in the case of this embodiment,
When the reinforcing fiber 14 having a relatively small specific gravity, such as a synthetic resin fiber or an aramid fiber, is used, the reinforcing fiber 14 can be prevented from floating by injecting the hardening material 16.
【００２５】図３は、本発明にかかるプレキャスト部材
の製造方法の第三実施例を示している。同図に示す実施
例は、第一および第二実施例と同様にプレキャストパネ
ルを製造する際に本発明を適用した場合であって、この
実施例の場合には、型枠１２が振動テーブル１８上に載
置され、その内部に、まず、硬化材１６が充填される。FIG. 3 shows a third embodiment of the method for manufacturing a precast member according to the present invention. The embodiment shown in the figure is a case where the present invention is applied when manufacturing a precast panel as in the first and second embodiments. In this embodiment, the mold 12 is The hardening material 16 is first filled inside.
【００２６】硬化材１６の充填が終了すると、振動テー
ブル１８を駆動させて、型枠１２に所定周波数の振動を
加えながら、硬化材１６の上方から、ディストリビュー
タ２０を介して、補強用ファイバー１４が散布される。
硬化材１６上に散布された補強用ファイバー１４は、振
動テーブル１８により加えられている振動で、硬化材１
６中に沈降する。When the filling of the hardening material 16 is completed, the reinforcing fiber 14 is driven from above the hardening material 16 via the distributor 20 while driving the vibration table 18 to apply vibration of a predetermined frequency to the mold 12. Sprayed.
The reinforcing fibers 14 scattered on the hardening material 16 are vibrated by the vibration table 18 so that the hardening material 1
Settles in 6.
【００２７】所定量の補強用ファイバー１４の沈降が終
了すると、上記実施例と同様に養生などを行ってプレキ
ャストパネルとされる。本実施例の場合には、振動によ
り補強用ファイバー１４を硬化材１６中に沈降させるの
で、比較的比重が大きい鋼製などの金属繊維が好まし
い。When the sedimentation of the predetermined amount of the reinforcing fibers 14 is completed, curing is performed in the same manner as in the above-described embodiment to form a precast panel. In the case of this embodiment, since the reinforcing fibers 14 are settled in the hardening material 16 by vibration, metal fibers made of steel or the like having a relatively large specific gravity are preferable.
【００２８】このように構成された第三実施例の製造方
法においても、補強用ファイバー１４を振動により硬化
材１６中に沈降させるので、補強用ファイバー１４を硬
化材１６の６重量％以上混入させても、ファイバーボー
ルが発生しない。Also in the manufacturing method of the third embodiment having the above-described structure, the reinforcing fibers 14 are settled in the hardening material 16 by vibration, so that the reinforcing fibers 14 are mixed in at least 6% by weight of the hardening material 16. However, no fiber balls are generated.
【００２９】[0029]
【発明の効果】以上、実施例で詳細に説明したように、
本発明にかかるプレキャスト部材の製造方法によれば、
補強用ファイバーの含有率を大幅に向上させることがで
きるので、プレキャスト部材の曲げ特性を大きく改善す
ることができ、この種の部材の小型化や薄型化を達成す
ることができる。As described above in detail in the embodiments,
According to the method for manufacturing a precast member according to the present invention,
Since the content of the reinforcing fiber can be greatly improved, the bending characteristics of the precast member can be greatly improved, and this type of member can be reduced in size and thickness.
【図１】本発明にかかるプレキャスト部材の製造方法の
第一実施例を示す工程説明図である。FIG. 1 is a process explanatory view showing a first embodiment of a method for manufacturing a precast member according to the present invention.
【図２】本発明にかかるプレキャスト部材の製造方法の
第二実施例を示す工程説明図である。FIG. 2 is a process explanatory view showing a second embodiment of the method for producing a precast member according to the present invention.
【図３】本発明にかかるプレキャスト部材の製造方法の
第三実施例を示す工程説明図である。FIG. 3 is a process explanatory view showing a third embodiment of the method for manufacturing a precast member according to the present invention.
１２，１２ａ 型枠 １４ 補強用ファイバー １６ 硬化材 12, 12a Formwork 14 Reinforcing fiber 16 Curing material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０４Ｂ 28/02 Ｂ２８Ｂ 1/08 Ｃ //(Ｃ０４Ｂ 26/02 14:48 16:06） ──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. 6 Identification code FI C04B 28/02 B28B 1/08 C // (C04B 26/02 14:48 16:06)
Claims (4)
嵩高状に積み重ね、前記補強用ファイバー間に硬化材が
介在するように注入することを特徴とするプレキャスト
部材の製造方法。1. A method for manufacturing a precast member, wherein short reinforcing fibers are piled up in a form in a bulky form, and a hardening material is injected between the reinforcing fibers.
高状に積み重ねた後に、空気抜き用の孔部が設けられ蓋
板を装着し、しかる後に、前記型枠内に前記硬化材を注
入することを特徴とする請求項１記載のプレキャスト部
材の製造方法。2. After the reinforcing fibers are stacked in a bulky shape in the mold, a hole for air release is provided and a cover plate is attached. Thereafter, the hardening material is injected into the mold. The method for manufacturing a precast member according to claim 1, wherein:
繊維またはビニロンなどの合成樹脂繊維から選択される
ことを特徴とする請求項１または２記載のプレキャスト
部材の製造方法。3. The method according to claim 1, wherein the reinforcing fibers are selected from metal fibers such as steel or synthetic resin fibers such as vinylon.
上方から補強用ファイバーを散布し、散布された前記補
強用ファイバーを振動により前記硬化材中に沈降させる
ことを特徴とするプレキャスト部材の製造方法。4. A molding material is filled with a hardening material, reinforcing fibers are sprinkled from above the hardening material, and the sprinkled reinforcing fibers are settled in the hardening material by vibration. A method for manufacturing a precast member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25975396A JP4010018B2 (en) | 1996-09-30 | 1996-09-30 | Precast member manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25975396A JP4010018B2 (en) | 1996-09-30 | 1996-09-30 | Precast member manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10100128A true JPH10100128A (en) | 1998-04-21 |
| JP4010018B2 JP4010018B2 (en) | 2007-11-21 |
Family
ID=17338481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25975396A Expired - Fee Related JP4010018B2 (en) | 1996-09-30 | 1996-09-30 | Precast member manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4010018B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6682671B1 (en) * | 2000-05-18 | 2004-01-27 | The United States Of America As Represented By The Secretary Of The Army | Method of manufacturing fiber-reinforced structures incorporating recycled carpet fibers |
| JP2006272924A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Process for manufacturing concrete having fiber-reinforced layer |
| JP2010150777A (en) * | 2008-12-24 | 2010-07-08 | Maeda Kosen Co Ltd | Cement-base hardening material panel and wall surface structure of earth fill surface using the same |
| CN110590255A (en) * | 2019-09-20 | 2019-12-20 | 宁波领智机械科技有限公司 | Fiber reinforced cement product and manufacturing method thereof |
-
1996
- 1996-09-30 JP JP25975396A patent/JP4010018B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6682671B1 (en) * | 2000-05-18 | 2004-01-27 | The United States Of America As Represented By The Secretary Of The Army | Method of manufacturing fiber-reinforced structures incorporating recycled carpet fibers |
| JP2006272924A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Process for manufacturing concrete having fiber-reinforced layer |
| JP2010150777A (en) * | 2008-12-24 | 2010-07-08 | Maeda Kosen Co Ltd | Cement-base hardening material panel and wall surface structure of earth fill surface using the same |
| CN110590255A (en) * | 2019-09-20 | 2019-12-20 | 宁波领智机械科技有限公司 | Fiber reinforced cement product and manufacturing method thereof |
| CN110590255B (en) * | 2019-09-20 | 2024-06-21 | 宁波领智机械科技有限公司 | Fiber reinforced cement product and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4010018B2 (en) | 2007-11-21 |
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