JPS6341105A - Manufacture of extrusion molding material for building - Google Patents
Manufacture of extrusion molding material for buildingInfo
- Publication number
- JPS6341105A JPS6341105A JP18447386A JP18447386A JPS6341105A JP S6341105 A JPS6341105 A JP S6341105A JP 18447386 A JP18447386 A JP 18447386A JP 18447386 A JP18447386 A JP 18447386A JP S6341105 A JPS6341105 A JP S6341105A
- Authority
- JP
- Japan
- Prior art keywords
- extruded
- extruded material
- steel
- long groove
- extrusion molding
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000012778 molding material Substances 0.000 title claims 2
- 238000001125 extrusion Methods 0.000 title description 10
- 239000000463 material Substances 0.000 claims description 60
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 239000004568 cement Substances 0.000 claims description 12
- 239000010425 asbestos Substances 0.000 claims description 9
- 229910052895 riebeckite Inorganic materials 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 238000004898 kneading Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は建築用押出成形材の製造方法に係り、更に詳し
くは所謂石綿セメント材から成る中空板材にプレストレ
スを導入する建築用押出成形材の製造方法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method for producing an extruded material for construction, and more specifically, an extruded material for construction in which prestress is introduced into a hollow board made of so-called asbestos-cement material. Relating to a manufacturing method.
（従来の技術及びその問題点）
石綿とセメント硬化物を混練して形成される、所謂石綿
セメント材は、抄造押出成形法等によって形成され、そ
の形状も板状や管状を為すものが多い。石綿セメント材
は通常のコンクリート材と比して強度が低い為、補強法
として成形の際にワイヤーストランド等の細径筋を埋め
込む等筒易な補強方法か採用されている。(Prior art and its problems) So-called asbestos cement material, which is formed by kneading asbestos and hardened cement, is formed by a papermaking extrusion method, etc., and its shape is often plate-like or tubular. Asbestos cement materials have lower strength than normal concrete materials, so easy reinforcing methods such as embedding small diameter bars such as wire strands during molding are used as reinforcement methods.
しかしこの種の補強方法では強度を向上させるに十分な
ものとはなり得ず、加工性、耐火性、軽量性等に優れた
石綿セメント材を十分活用するに至っていない。However, this type of reinforcing method is not sufficient to improve the strength, and asbestos cement materials, which have excellent workability, fire resistance, lightness, etc., have not been fully utilized.
そこで本発明は、近年石綿セメント材の圧縮強度がコン
クリートと同程度（例えば６００Ｋｇ／ｃ ｎｆ ）と
なっている点に着目し、更に構造耐力的十分な建築用押
出成形材の製造方法を案出したものである。Therefore, the present invention focused on the fact that in recent years, the compressive strength of asbestos-cement materials has become comparable to that of concrete (for example, 600 kg/c nf ), and devised a method for manufacturing extruded materials for construction with sufficient structural strength. This is what I did.
（問題点を解決するための手段）
本発明は上記問題点にｔｒｉみ為されたもので、押出成
形によって中空部を有する板材を形成し、この石綿セメ
ント板の長平方向に亘り長溝を設け、この長溝内に鋼材
を配設して緊張して板材にプレストレスを導入した後、
前記長溝内にグラウトモルタルを注入して耐火、被覆を
施す建築用押出成形材の製造方法を提供するものである
。(Means for solving the problems) The present invention has been made to solve the above problems, and includes forming a board having a hollow part by extrusion molding, and providing a long groove in the longitudinal direction of this asbestos cement board. After placing the steel material in this long groove and applying tension to the plate material,
The present invention provides a method for producing an extruded material for construction, which includes injecting grout mortar into the long groove to provide fireproofing and coating.
（作用）
この製造方法によれば、圧縮強度を石綿セメント材か負
担し、且つ引張強度を鋼材が受は持つ丈てなく、引張強
度を負担する石綿セメント材に予め圧縮応力を与えてお
き外部荷重から受ける引張応力を相殺させる。所謂プレ
ストレス導入によって補剛効果を得るものである。(Function) According to this manufacturing method, the compressive strength is borne by the asbestos-cement material, and the tensile strength is not supported by the steel material. Offsets the tensile stress received from the load. A stiffening effect is obtained by introducing so-called prestress.
（実施例）
以下本発明の建築用押出成形材の製造方法を詳細に説明
する。(Example) The method for producing an extruded material for construction according to the present invention will be described in detail below.
第１図は押出成形材１の一部省略斜視図である。この押
出成形材１は、石綿とセメント材を混練して押出成形機
（図示せず）のシリンダーによって吐き出し型枠から押
し出されたもので、全体形状としては板状を為し、又坂
内には押し出し方向と略平行に隔壁部１１．１１によっ
て区画された中空部１２．１２・・・が形成される。FIG. 1 is a partially omitted perspective view of an extruded material 1. FIG. This extruded material 1 is made by kneading asbestos and cement material and extruding it from a discharge form by a cylinder of an extrusion molding machine (not shown), and has a plate-like overall shape, and has a slope inside. Hollow parts 12.12... are formed substantially parallel to the extrusion direction and partitioned by partition walls 11.11.
上記構成の押出成形材ｌにおいて、例えばその下面１３
の長平方向に亘って開口状の長溝１４，１４・・・を形
成する。通常長溝１４．１４・・・は押出成形材ｌの下
面１３から隔壁部１１．１１−・・内に向けて形成され
る。又長溝１４，１４・・・の幅及び深さは少なくとも
後述する鋼材の径よりも大きく形成される。尚長溝ｔ４
．ｔｉ・・・を形成する具体的手段としては、押出成形
機による成形時に形成するものでもよく、又は押出成形
機から搬出された押出成形材ｌが未硬化若しくは硬化の
状態において適宜の切削手段により形成するものであっ
てもよい。In the extrusion molded material l having the above configuration, for example, the lower surface 13
Open long grooves 14, 14, . . . are formed in the longitudinal direction. Usually, the long grooves 14, 14, . Further, the width and depth of the long grooves 14, 14, . . . are formed to be larger than at least the diameter of the steel material described later. Long groove t4
．． As a specific means for forming ti..., it may be formed during molding with an extrusion molding machine, or it may be formed by an appropriate cutting means when the extruded material l discharged from the extrusion molding machine is in an uncured or hardened state. It may be formed.
上述の様に、下面１３に適宜数の長溝１４．１４を形成
した押出成形板材ｌに対し、第２図の一部省略斜視図で
示す如く、鋼材２，２・・・を配設する。鋼材２．２・
・・は適度の靭性を有し、高強度の鋼材若しくは撚線が
用いられる。又この鋼材２，２・・・の両端部には鍛造
等の手段によって螺子部２１が形成されている。斯かる
鋼材２．２−・・に対し、押出成形材ｌが所定の強度を
発現した後、第３図の一部省略斜視図及び第４図の側面
概略図で示す様に、押出成形材ｌの両端面Ｉｓ、１５
（図では一つの端面のみを示す）において、鋼材２．
２−・・の螺子部２１．２１・・・に支圧板ｐ、ｐ−・
を挿入して端面１５に当接させる。次いで螺子部２１．
２１−・・にナツトＮ。As described above, the steel materials 2, 2, . . . are arranged on the extrusion-molded plate l having an appropriate number of long grooves 14, 14 formed on the lower surface 13, as shown in the partially omitted perspective view of FIG. Steel material 2.2・
... has appropriate toughness and uses high-strength steel or stranded wire. Further, threaded portions 21 are formed at both ends of the steel materials 2, 2, . . . by means such as forging. After the extruded material 1 develops a predetermined strength for such steel material 2.2-..., as shown in the partially omitted perspective view of FIG. 3 and the schematic side view of FIG. Both end faces Is of l, 15
(Only one end face is shown in the figure), steel material 2.
2-... Attach the bearing plate p, p- to the threaded portion 21, 21...
is inserted and brought into contact with the end surface 15. Next, the screw portion 21.
21- Natsuto N.
Ｎ・−・を螺合する。そして端面１５，１５と他の端面
１５においてナツトＮ、Ｎ・・・を締付ける。すなわち
端面１５，１５間を支圧板Ｐ、Ｐにより圧締する。Screw N... Then, nuts N, N, . . . are tightened on the end faces 15, 15 and the other end face 15. That is, the end surfaces 15, 15 are pressed together by the bearing plates P, P.
よって押出成形材ｌは鋼材２，２・・・を介してプレス
トレスが導入される。Therefore, prestress is introduced into the extruded material 1 via the steel materials 2, 2, . . . .
次いで鋼材２．２・・・が配設されている長溝１４゜１
４・・・内にグラウトモルタル３を注入する。グラウト
モルタル３としては、押出成形材ｌを形成した石綿及び
セメント硬化物の混練したものに若干の混和剤を加え、
鋼材２．２−・・の周囲十分且つ確実に流入する丈の注
入性、充填性のあるものが用いられる。又鋼材２，２の
防錆及び付若、定着作用をも働かせ得るものである。グ
ラウトモルタル３の注入方法としては、長溝１４，１４
−・・の開口面に堰板（図示せず）を設けて、端面１５
側からグラウトポンプを介して圧入するものでもよく、
又堰板を設けず開口全域に亘って均一に流し込むもので
あってもよい。何れも鋼材２．２・・・の周囲に流入且
つ充填され防錆、耐火等に十分な被覆材となればよい。Next, the long groove 14゜1 in which the steel material 2.2... is arranged.
4. Inject the grout mortar 3 into the inside. As the grout mortar 3, a small amount of an admixture is added to the kneaded mixture of the asbestos and cement hardened material that formed the extruded material 1,
A material having sufficient injectability and filling properties is used so that it can flow sufficiently and reliably around the steel material 2.2-. Moreover, it can also have rust prevention, aging, and fixing effects on the steel materials 2, 2. As for the injection method of the grout mortar 3, the long grooves 14, 14
- A weir plate (not shown) is provided on the opening surface of the end surface 15.
It may also be press-fitted from the side via a grout pump.
Alternatively, the water may be poured uniformly over the entire opening without providing a weir plate. Any of these may flow into and fill the surroundings of the steel materials 2, 2, and serve as a coating material sufficient for rust prevention, fire resistance, etc.
上記製造方法に得られた建築用押出成形材は、第５図の
側断面ｌ！略図で示す様に、押出成形材ｌにプレストレ
スを導入した鋼材２はグラウトモルタル３によって付着
、定着されて一体的となる。The extruded material for construction obtained by the above manufacturing method has a side cross section l! shown in FIG. As shown in the diagram, a steel material 2 in which prestress is introduced into an extruded material 1 is adhered and fixed by a grout mortar 3 and becomes integral.
（効果）
以上の様に本発明の製造方法によれば、石綿セメント硬
化物等を混練して押形工程によって押出成形材を形成し
、この押出成形材に設けた長溝内に鋼材を配設し、鋼材
を緊張して押出成形材にプレストレスを導入するもので
あり、押出成形材に対するプレストレス導入が極めて容
易且つ施工性の良いものとなっている。又得られる押出
成形材も予め圧縮応力が与えられている為、引張応力が
相殺され、所謂十分な構造耐力を有する構造材として使
用され得ることになる。(Effects) As described above, according to the manufacturing method of the present invention, a hardened asbestos cement material is kneaded and an extrusion molded material is formed by a pressing process, and a steel material is arranged in a long groove provided in this extrusion molded material. This method introduces prestress into the extruded material by tensioning the steel material, making it extremely easy to introduce prestress into the extruded material and has good workability. Furthermore, since the resulting extruded material has been given compressive stress in advance, the tensile stress is offset, and it can be used as a structural material having so-called sufficient structural strength.
第１図は、押出成形材を示す一部省略斜視図、第２図は
、押出成形材に形成された長溝を説明する一部省略斜視
図、
：ｆｔ、３図は、鋼材の緊張手段を説明する一部省略斜
視図、
第４図は、同側面図、
第５図は、プレストレスを与えられた状態の押出成形材
を示す側断面概略図である。
ｌ・・・押出成形材、 １２．１２・・・中空部。
１３・・・下面、１４・・・長溝、２．２−・・鋼材。
３・・・グラウトモルタル、ｐ、ｐ−・支圧板。
Ｎ、Ｎ・・・ナツト。
特許出願人 鹿島建設株式会社
代理人 弁理士 船 橋 國 則第１図
第２図
第３図Fig. 1 is a partially omitted perspective view showing an extruded material, Fig. 2 is a partially omitted perspective view illustrating a long groove formed in the extruded material, and Fig. 3 is a partially omitted perspective view illustrating a long groove formed in the extruded material. FIG. 4 is a partially omitted perspective view for explanation; FIG. 4 is a side view of the same; FIG. 5 is a schematic side sectional view showing the extruded material in a prestressed state. l... Extruded material, 12.12... Hollow part. 13... Bottom surface, 14... Long groove, 2.2-... Steel material. 3... Grout mortar, p, p- bearing plate. N, N...Natsuto. Patent applicant Kajima Corporation Agent Patent attorney Kuninori Funahashi Figure 1 Figure 2 Figure 3
Claims (1)
押し出して中空部を有する板材に形成し、該板材の長手
方向に亘って長溝を設けるとともに、該長溝内に鋼材を
配設して緊張することにより該板材にプレストレスを導
入した後、前記長溝内にグラウトモルタルを注入して該
鋼材を埋設する建築用押出成形材の製造方法。A molding material made by kneading asbestos and hardened cement is extruded from a mold material to form a board having a hollow part, long grooves are provided in the longitudinal direction of the board, and a steel material is placed in the long groove to tension it. A method for producing an extruded material for construction, wherein prestress is introduced into the plate material, and then grout mortar is injected into the long groove to bury the steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18447386A JPS6341105A (en) | 1986-08-06 | 1986-08-06 | Manufacture of extrusion molding material for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18447386A JPS6341105A (en) | 1986-08-06 | 1986-08-06 | Manufacture of extrusion molding material for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6341105A true JPS6341105A (en) | 1988-02-22 |
Family
ID=16153779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18447386A Pending JPS6341105A (en) | 1986-08-06 | 1986-08-06 | Manufacture of extrusion molding material for building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6341105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154819A (en) * | 1991-12-06 | 1993-06-22 | Showa Denko Kk | Prestressed extrusion member |
| JPH07254077A (en) * | 1994-03-14 | 1995-10-03 | Shinichi Takase | Tape for issuing order ticket and order ticket issuing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49105817A (en) * | 1973-02-06 | 1974-10-07 |
-
1986
- 1986-08-06 JP JP18447386A patent/JPS6341105A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49105817A (en) * | 1973-02-06 | 1974-10-07 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154819A (en) * | 1991-12-06 | 1993-06-22 | Showa Denko Kk | Prestressed extrusion member |
| JPH07254077A (en) * | 1994-03-14 | 1995-10-03 | Shinichi Takase | Tape for issuing order ticket and order ticket issuing device |
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