JPH04368812A - Manufacture of reinforced extrusion molding - Google Patents
Manufacture of reinforced extrusion moldingInfo
- Publication number
- JPH04368812A JPH04368812A JP14574691A JP14574691A JPH04368812A JP H04368812 A JPH04368812 A JP H04368812A JP 14574691 A JP14574691 A JP 14574691A JP 14574691 A JP14574691 A JP 14574691A JP H04368812 A JPH04368812 A JP H04368812A
- Authority
- JP
- Japan
- Prior art keywords
- steel wire
- molding
- extrusion molding
- extrusion
- molded product
- 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
- 238000001125 extrusion Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000003111 delayed effect Effects 0.000 claims abstract 4
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 16
- 235000012438 extruded product Nutrition 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract 6
- 238000004220 aggregation Methods 0.000 abstract 4
- 230000002776 aggregation Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、ビル（事務所、住宅）
、工場、駐車場、プラットホーム等の床材として使用可
能なプレストレスを導入した高強度無機質押出成形品の
製造方法に関する。[Industrial Application Field] The present invention is applicable to buildings (offices, residences)
This invention relates to a method for manufacturing high-strength inorganic extrusion molded products that incorporate prestressing and can be used as flooring materials for factories, parking lots, platforms, etc.
【０００２】0002
【従来の技術】コンクリートにプレストレスを導入した
床版はよく知られており、ポストテンション方式でも、
プレテンション方式でも製造されている。一方、長尺の
無機質押出成形品でも、プレストレスを導入した建築用
押出成形品の製造方法が知られている。（特開昭６３−
４１１０５号公報）[Prior art] Floor slabs in which prestress is introduced into concrete are well known, and even post-tension methods can be used.
It is also manufactured using the pre-tension method. On the other hand, even in the case of long inorganic extrusion molded products, a method for producing architectural extrusion molded products that introduces prestress is known. (Unexamined Japanese Patent Publication No. 1983-
Publication No. 41105)
【０００３】0003
【発明が解決しようとする課題】しかしながら、このよ
うな無機質押出成形品では押出成形時に長溝を形成して
おき、この溝にＰＣ鋼材を埋込んでプレストレスを付与
するものである。従来、押出成形時に、ＰＣ鋼材を押出
成形品の内部に挿入したプレストレス成形品は知られて
いない。その理由は無機質押出製品の押出成形時に、シ
ースを埋設することや、アンボンドＰＣ鋼材を同時に挿
入することが困難であったためである。[Problems to be Solved by the Invention] However, in such inorganic extruded products, long grooves are formed during extrusion molding, and prestress is applied by embedding a prestressing steel material into these grooves. Conventionally, there is no known prestressed product in which a prestressed steel material is inserted into the extrusion molded product during extrusion molding. The reason for this is that it is difficult to embed a sheath or simultaneously insert an unbonded PC steel material during extrusion molding of an inorganic extruded product.
【０００４】本発明はこのような従来技術に革新的な改
善を施した技術を提供することを目的とする。[0004] An object of the present invention is to provide a technology that is an innovative improvement over such conventional technology.
【０００５】[0005]
【課題を解決するための手段】本発明は、無機質押出成
形品の押出成形に当り、ＰＣ鋼線を押出成形時に同時に
成形品内に挿入し、ＰＣ鋼線の周囲のみ凝結遅延させ、
成形品が硬化し凝結遅延部が硬化する前にＰＣ鋼線を緊
張して、成形品にプレストレスを導入することを特徴と
する補強押出成形品の製造方法である。[Means for Solving the Problems] The present invention, when extruding an inorganic extrusion molded product, inserts a PC steel wire into the molded product at the same time as extrusion molding, delays solidification only around the PC steel wire,
This is a method for producing a reinforced extrusion molded product, which is characterized in that prestress is introduced into the molded product by tensioning the PC steel wire before the molded product is hardened and the setting retardation part is hardened.
【０００６】本発明は、同時挿入したＰＣ鋼線の周囲の
み凝結遅延させて、それ以外の部分が硬化したときＰＣ
鋼線を緊張してプレストレスを導入する。応力導入に用
いた定着具は、押出成形品が完全硬化後に取外してしま
うことも可能である。又は定着具を取外さないとすれば
、ＰＣ鋼線の周囲の遅延剤は永久に硬化しないものでも
よい。[0006] The present invention delays solidification only around the PC steel wire inserted at the same time, and when the other parts are hardened, the PC steel wire is hardened.
Introduce prestress by tensioning the steel wire. The fixing device used to introduce stress can also be removed after the extruded product is completely cured. Alternatively, if the anchor is not removed, the retarder around the PC steel wire may be permanently unhardened.
【０００７】[0007]
【作用】本発明では押出成形により中空形状の成形品を
製造することが可能で軽量化が容易である。また押出成
形と同時にＰＣ鋼線を成形体内に挿入するので、生産性
が高い。なお、製品長さ分の受取装置があれば本発明を
実施することができ、長大ラインは不要である。[Function] According to the present invention, a hollow shaped molded product can be manufactured by extrusion molding, and the weight can be easily reduced. Furthermore, since the PC steel wire is inserted into the molded body at the same time as extrusion, productivity is high. Note that the present invention can be implemented as long as there is a receiving device for the length of the product, and a long line is not necessary.
【０００８】[0008]
【実施例】図１は本発明方法によって製造される板材１
の部分断面図である。板材１は多数の中空孔３を備えた
殻２から成り、その断面内にＰＣ鋼材４及びその周囲の
凝結遅延部５が示されている。板材１は、無機質押出製
品から成り、生地を混練機で十分に混練した後、押出成
形用口金から高圧で押出されて同一断面の長尺板材とな
る。その壁内に凝結遅延剤５をＰＣ鋼材４の周囲に介在
させて押出時に生地内に挿入する。凝結遅延剤としては
例えばクエン酸、酒石酸、グルコン酸ナトリウム、酸化
亜鉛等を用い、これらをＰＣ鋼材に塗布するか又はＰＣ
鋼材の周囲に注入する。凝結遅延剤は２４〜４８時間経
過後に凝結しはじめるように調整する。その後、蒸気養
生、オートクレーブ養生等により凝結、硬化、強度発現
を促進させる。押出製品の生地は硬化後強度が５００〜
７００ｋｇｆ／ｃｍ２ となるような配合とすると好適
である。[Example] Fig. 1 shows a plate material 1 manufactured by the method of the present invention.
FIG. The plate 1 consists of a shell 2 with a number of hollow holes 3, in the cross section of which a prestressing steel 4 and a setting retarder 5 around it are shown. The plate material 1 is made of an inorganic extruded product, and after thoroughly kneading the dough with a kneader, it is extruded under high pressure from an extrusion die to form a long plate material with the same cross section. A setting retarder 5 is interposed in the wall around the PC steel material 4 and inserted into the dough during extrusion. As a setting retarder, for example, citric acid, tartaric acid, sodium gluconate, zinc oxide, etc. are used, and these are applied to the PC steel material or
Inject around the steel material. The setting retarder is adjusted so that setting starts after 24 to 48 hours. Thereafter, coagulation, hardening, and strength development are promoted by steam curing, autoclave curing, etc. The strength of extruded product fabric after curing is 500~
It is preferable to use a composition that provides 700 kgf/cm2.
【０００９】厚１５０ｍｍ、幅１０００ｍｍ、壁厚３０
ｍｍ、中空孔を有する図１に示す断面の板材１に９ｍｍ
のＰＣ鋼線４を９本挿入し、長さ６ｍの板材１を製造し
た。硬化体の強度５００ｋｇｆ／ｃｍ２ 、ＰＣ鋼線の
緊張力１００ｋｇｆ／ｍｍ２ とした。長尺スラブ材と
して有効に用いることができた。[0009]Thickness: 150mm, width: 1000mm, wall thickness: 30mm
mm, 9 mm for the plate material 1 with the cross section shown in Figure 1 having a hollow hole.
Nine PC steel wires 4 were inserted to produce a plate material 1 having a length of 6 m. The strength of the hardened body was 500 kgf/cm2, and the tension of the PC steel wire was 100 kgf/mm2. It could be effectively used as a long slab material.
【００１０】0010
【発明の効果】本発明によればコンパクトな設備で生産
性良くプレストレスを導入した、軽量高強度押出成形品
を作ることができる。このような押出成形品は単体でプ
レストレススラブとして、またはその上にコンクリート
を打設する永久型枠を兼ねたハーフプレストレススラブ
として用いられる。[Effects of the Invention] According to the present invention, a lightweight, high-strength extrusion molded product can be produced with high productivity using compact equipment and in which prestress is introduced. Such an extruded product can be used alone as a prestressed slab, or as a half prestressed slab that also serves as a permanent formwork on which concrete is poured.
【図１】本発明方法により製造された押出成形品の実施
例の部分断面図である。FIG. 1 is a partial cross-sectional view of an example of an extrusion molded product produced by the method of the present invention.
１ 板材
２ 殻３ 中空孔
４
ＰＣ鋼材５ 凝結遅延剤1 Board material
2 shell 3 hollow hole
4
PC steel material 5 Setting retarder
Claims (1)
ＰＣ鋼線を押出成形時に同時に成形品内に挿入し、該Ｐ
Ｃ鋼線の周囲のみ凝結遅延させ、成形品が硬化し凝結遅
延部が硬化する前にＰＣ鋼線を緊張して、該成形品にプ
レストレスを導入することを特徴とする補強押出成形品
の製造方法。[Claim 1] For extrusion molding of inorganic extrusion molded products,
A PC steel wire is inserted into the molded product at the same time as extrusion molding, and the P
A reinforcing extrusion molded product characterized in that setting is delayed only around the C steel wire, and the prestress is introduced into the molded product by tensioning the PC steel wire before the molded product hardens and the setting retarded portion hardens. Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14574691A JPH04368812A (en) | 1991-06-18 | 1991-06-18 | Manufacture of reinforced extrusion molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14574691A JPH04368812A (en) | 1991-06-18 | 1991-06-18 | Manufacture of reinforced extrusion molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04368812A true JPH04368812A (en) | 1992-12-21 |
Family
ID=15392197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14574691A Pending JPH04368812A (en) | 1991-06-18 | 1991-06-18 | Manufacture of reinforced extrusion molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04368812A (en) |
-
1991
- 1991-06-18 JP JP14574691A patent/JPH04368812A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20000418 |