JPH03187711A - Finishing of internal surface of concrete pipe - Google Patents
Finishing of internal surface of concrete pipeInfo
- Publication number
- JPH03187711A JPH03187711A JP32580289A JP32580289A JPH03187711A JP H03187711 A JPH03187711 A JP H03187711A JP 32580289 A JP32580289 A JP 32580289A JP 32580289 A JP32580289 A JP 32580289A JP H03187711 A JPH03187711 A JP H03187711A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cement
- hardening
- cement milk
- concrete pipe
- 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
- 239000004568 cement Substances 0.000 claims abstract description 48
- 239000008267 milk Substances 0.000 claims abstract description 34
- 210000004080 milk Anatomy 0.000 claims abstract description 34
- 235000013336 milk Nutrition 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000004220 aggregation Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 241001648319 Toronia toru Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 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
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明はコンクリートパイプの内面の仕上方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for finishing the inner surface of a concrete pipe.
〔従来の技術Ｊ
従来、遠心力成形コンクリートパイプは、遠心力締固め
後、内面をバール等にて仕上げている。[Prior Art J] Conventionally, the inner surface of a centrifugally formed concrete pipe is finished with a crowbar or the like after being compacted by centrifugal force.
〔発明が解決しようとする課題Ｊ
従来の人手による内面の仕上げは熟練を要するものであ
り、仕上げの程度にもむらがあり、平滑で均一な内径を
得ることは困難であった。[Problem to be Solved by the Invention J] Conventional manual finishing of the inner surface required skill, the degree of finishing was uneven, and it was difficult to obtain a smooth and uniform inner diameter.
本発明は上記問題点を解決するためになされたもので、
平滑で−様な内径に仕上げをなし、人手を節約し、品質
の向上を図るものである。The present invention has been made to solve the above problems,
The finish is smooth and has a uniform inner diameter, which saves manpower and improves quality.
〔課題を解決するための手段］
本発明は、コンクリートパイプの内面仕上げに際し、パ
イプの内面に速硬性セメントミルクを投入し、パイプを
回転させて遠心力により上記速硬性セメントミルクをパ
イプ内面に付着、硬化させることを特徴とするコンクリ
ートパイプの内面仕上げ方法である。[Means for Solving the Problems] The present invention, when finishing the inner surface of a concrete pipe, pours fast-hardening cement milk into the inner surface of the pipe, rotates the pipe, and causes the fast-hardening cement milk to adhere to the inner surface of the pipe by centrifugal force. This is a method for finishing the inner surface of a concrete pipe, which is characterized by curing.
本発明によれば、コンクリートを回転型枠内に投入し、
遠心力成形法により、コンクリートパイプを成形した後
、若しくはこれを蒸気養生した後に、速硬性セメントを
用いたセメントミルクを投入し、コンクリートパイプを
回転させセメントミルクをコンクリートパイプ内面全体
に沿って均一に展開し、硬化させることができる。According to the present invention, concrete is poured into a rotating formwork,
After forming a concrete pipe using the centrifugal force forming method, or after curing it with steam, cement milk using quick-hardening cement is added, and the concrete pipe is rotated to spread the cement milk uniformly along the entire inner surface of the concrete pipe. Can be expanded and cured.
本発明において速硬性セメントを用いる理由はセメント
ミルクをコンクリートパイプ内面で硬化させるのに長時
間を要すると能率の低下を招き、また硬化前に回転を止
めるとｐ′メントミルクが、静置の後に張力によりパイ
プ内向より承れる結果、内面より剥離することとなるか
らである。The reason why fast-hardening cement is used in the present invention is that if it takes a long time to harden the cement milk on the inner surface of the concrete pipe, efficiency will decrease, and if the rotation is stopped before hardening, the p'ment milk will This is because the tension causes the pipe to bend inward, resulting in peeling from the inner surface.
したがって本発明においτｔ：ｉ、使用するトメソトミ
ルクは混線後２０分程度の間ｉ１−硬化するものでなけ
ればならない。Therefore, in the present invention, τt:i, the tome-soto milk used must be i1-hardened for about 20 minutes after crosstalk.
そのため本発明のセメニットミルクは硬化時間の調節の
ために凝固調節剤を用いるご］とができる、凝結調節剤
としては速硬督゛＋コメントの凝結調節剤として一般的
に用いられているものを使用することができる。そのな
かでも特に、アルカリ金属炭酸塩、ノ′ルカリ仝属東炭
酸塩、（１゛機カルボン酸及びその塩類、珪弗化物等を
用いる。二とができる。Therefore, in the cement milk of the present invention, a coagulation regulator can be used to adjust the setting time.As a coagulation regulator, a coagulation regulator is commonly used as a coagulation regulator in a quick hardening agent + comment. can be used. Among these, in particular, alkali metal carbonates, norkali metal carbonates, (1) monocarboxylic acids and their salts, silicofluorides, etc. can be used.
本発明に用いる速硬性セメ：）１−どしては一般的に用
いられているものを使用することが−Ｃきるが、その中
でもアルミン酸カルシウムを１体と１、たセメントが好
適である。。例えばアルミフセメント、ジＳ、ツ１−セ
メント、またはｌ ２ＣａＯ・７、ｌ！２０３あるいは
その類似組成分、Ｃａ Ｏ・／１２０３あるいはその類
似物を１体としたセメン）・を用いることができる。Fast-hardening cement used in the present invention:) 1-Although commonly used cements can be used, among them, a cement containing 1 and 1 part of calcium aluminate is preferable. . . For example, aluminum cement, diS, tsu1-cement, or l2CaO・7,l! 203 or a similar composition thereof, or cement (Cement) containing CaO.203 or a similar composition thereof, can be used.
」＝た。″れらのセメントには、強度増進や硬化による
あるいは硬化後の収縮防止の目的で膨張材を混合４′る
４：ともできる。”=ta. These cements can be mixed with an expanding agent for the purpose of increasing strength and preventing shrinkage during hardening or after hardening.
本発明に用いる七メ〕ノ１−ミルクには無機質の粉末を
混入４′る。“とが′Ｔ″きる。無機質粉末の混入によ
り（τメントミルクの乾燥収縮を小さ（することができ
、硬化後のバーイブ内面よりの剥離を防ｔｉ＝すること
ができる。無機質粉末は粒径が大きいと内面の什［一つ
が悪くなるので、その最大粒径は、３ｖｎ ｒｎ １．
；Ｊ−Ｔ’である。まｔ・その最大Ｍ入量は速硬性セメ
ン；・１００重量部＆こ対し３００重量部である。The milk used in the present invention is mixed with an inorganic powder. “T” is sharp. By mixing the inorganic powder, it is possible to reduce the drying shrinkage of the ment milk and prevent it from peeling off from the inner surface of the barb after hardening. The maximum particle size is 3vn rn 1.
;J-T'. The maximum M content is 100 parts by weight for fast-setting cement and 300 parts by weight.
これを越える混入はセメントミルクの強度を低下させる
。Contamination beyond this will reduce the strength of the cement milk.
また本発明にｔｌいるセメントミルク姥はガラス繊維等
の繊維を混入する４″′ともできる。繊維の混入４こよ
り２セメントミルクの強度を高くすることができる。Furthermore, the cement milk used in the present invention can also be mixed with fibers such as glass fibers.The strength of the cement milk can be increased by adding fibers.
本発明に用いるセメントミルクは一１ンクリー ドパイ
ブの内面全体に展開ケるため番こ、ある程度の流動性を
必要とする。その流動性は１ンクリー ト・パイプの１
」径等によってかわるものｅあるが、Ｐロー１・・にＪ
：る流下時間が５〜３０秒の範囲のもの適当である。ま
た流動性を増すため＆；： Ｉｌ、１ｉ水剤等を用いる
ことかできる９
本発明によって、コンクリート・パイプの内面に形成さ
れるセメントミルク層の厚さは、コンクリートパイプの
［］径により胃なるが、概略的り二は０．５〜５ ｒｌ
ｌ ｖｎの範囲である。The cement milk used in the present invention requires a certain degree of fluidity because it can be spread over the entire inner surface of the concrete pipe. Its fluidity is 1 of that of 1 concrete pipe.
”There are some changes depending on the diameter, etc., but there are P row 1, J
: It is suitable that the flow time is in the range of 5 to 30 seconds. Also, in order to increase the fluidity, &;: Il, 1i water agent, etc. can be used. 9 According to the present invention, the thickness of the cement milk layer formed on the inner surface of the concrete pipe is determined by However, the approximate value is 0.5 to 5 rl.
l vn range.
〔作用）
本発明によると遠心力によりコンクリート円曲に速硬性
セメントミルクの層が形成される。遠心力によるためコ
ンクリ−１へバーイブ内面に一様１１Ｌ ” −定の厚
さで形成され、しかもその表面は非常１；こ平滑である
。[Operation] According to the present invention, a layer of fast-hardening cement milk is formed on the concrete curve by centrifugal force. Due to the centrifugal force, a uniform thickness of 11L'' is formed on the inner surface of the concrete bar, and its surface is extremely smooth.
本発明のセメントミルクをコンクリ−ドパイブの内部に
（１・入するには、例えば任意の間隔で孔を開けた金属
あるいはプラスデック製等の供給パイプをコンクリート
パイプ内部に挿入する。：とによりｉｉｉ能である。To introduce the cement milk of the present invention into the inside of a concrete pipe (1), a supply pipe made of metal or plastic deck with holes drilled at arbitrary intervals is inserted into the concrete pipe. It is Noh.
］記の孔を開けた供給パイプへのセメントミルクの供給
は自然流下により、またはポンプを用いて行うことがで
きる。またセメントミルクの混線は音通のミキサで行・
）ことが可能であり、五線より注入までの過程を自動化
することができ、省力化が可能である。] The supply of cement milk into the perforated supply pipe can be carried out by gravity flow or by means of a pump. In addition, the mixing of cement milk is done with an Ontsu mixer.
), it is possible to automate the process from the staff to the injection, and it is possible to save labor.
本発明においでは、速＆ｉ！性セメントミルクを用いる
ので、コンクリートパイプには一様に展開されたセメン
トミルクの層は速やかに硬化し、パイプの表面より垂れ
ることなく硬化する。In the present invention, speed & i! Since cement milk is used, the layer of cement milk that is uniformly spread on the concrete pipe hardens quickly and hardens without dripping from the surface of the pipe.
本発明の方法により＝ｌンクリー・ドパイブの内面に速
硬性セメントの層を形成させた後に、急激な乾燥がｆ想
さｔｌ、る場合、コンクリ・−ドパイブ内面に散水をす
ることができる。After forming a layer of fast-setting cement on the inner surface of the concrete pipe according to the method of the invention, if rapid drying is expected, the inner surface of the concrete pipe can be sprinkled with water.
【実施＠ｌ
以Ｘ； ＋Ｖ本発明の実施例につき説明するが、本発明
は本実施例！１より拘束されるものではない。[Implementation＠l From X; It is not more restrictive than 1.
直径５００ｍｒｎのコンクリートパイプを遠心力成形法
δこより作製した後、その内部へ直径２ｎｎｉｙｍの孔
を２００ｍｍ間隔に開けた内径１３ｍｍの塩化ビニール
製の供給パイプを用いて、下肥の配合のセメントミルク
をパイプを回転させながら投入し、投入終了後、更に３
分間パイプを回転しミルクの層を形成させた。After making a concrete pipe with a diameter of 500 mrn using the centrifugal force forming method δ, using a supply pipe made of vinyl chloride with an inner diameter of 13 mm and with holes of 2 nniym in diameter drilled at 200 mm intervals inside the pipe, cement milk mixed with manure was poured into the pipe. Pour the pipe while rotating it, and after the pipe is finished, add another 3
Rotate the pipe for a minute to form a layer of milk.
セメントミルクの配合
セメント ５５重置％
水 ４５重量％
凝結調整剤 セメント徹の０．１６％その結果１円
滑で均一内径の仕上面を得ることができ、コンクリート
パイプの商７品価値を著しく高めることができた。Mixture of cement milk Cement: 55% by weight Water: 45% by weight Set regulator: 0.16% of Cement Toru was completed.
〔発明の効果］
本発明によれば、遠心力成形によるコンクリートパイプ
を、遠心力成形機を利用して一様均一で円滑な仕上げ内
面を有する管に形成することができる。[Effects of the Invention] According to the present invention, a concrete pipe formed by centrifugal force forming can be formed into a pipe having a uniformly uniform and smooth finished inner surface using a centrifugal force forming machine.
Claims (1)
内面に速硬性セメントミルクを投入し、遠心力により該
セメントミルクをパイプ内面に付着、硬化させることを
特徴とするコンクリートパイプの内面仕上げ方法。1. A method for finishing the inner surface of a concrete pipe, which is characterized in that when finishing the inner surface of a concrete pipe, quick-hardening cement milk is poured into the inner surface of the pipe, and the cement milk is adhered to the inner surface of the pipe and hardened by centrifugal force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32580289A JPH03187711A (en) | 1989-12-18 | 1989-12-18 | Finishing of internal surface of concrete pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32580289A JPH03187711A (en) | 1989-12-18 | 1989-12-18 | Finishing of internal surface of concrete pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03187711A true JPH03187711A (en) | 1991-08-15 |
Family
ID=18180759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32580289A Pending JPH03187711A (en) | 1989-12-18 | 1989-12-18 | Finishing of internal surface of concrete pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03187711A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2760996A1 (en) * | 1996-06-13 | 1998-09-25 | Firmin Sabaty | Manufacture of hollow building construction components |
| KR102571007B1 (en) * | 2023-03-07 | 2023-08-29 | 아이에스동서 주식회사 | A PHC pile and a manufacturing method thereof and a manufacturing device thereof |
-
1989
- 1989-12-18 JP JP32580289A patent/JPH03187711A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2760996A1 (en) * | 1996-06-13 | 1998-09-25 | Firmin Sabaty | Manufacture of hollow building construction components |
| KR102571007B1 (en) * | 2023-03-07 | 2023-08-29 | 아이에스동서 주식회사 | A PHC pile and a manufacturing method thereof and a manufacturing device thereof |
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