JPH1053473A - Permeable concrete - Google Patents
Permeable concreteInfo
- Publication number
- JPH1053473A JPH1053473A JP22043296A JP22043296A JPH1053473A JP H1053473 A JPH1053473 A JP H1053473A JP 22043296 A JP22043296 A JP 22043296A JP 22043296 A JP22043296 A JP 22043296A JP H1053473 A JPH1053473 A JP H1053473A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- permeable concrete
- water
- permeable
- present
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0675—Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/04—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by dissolving-out added substances
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Artificial Filaments (AREA)
Abstract
(57)【要約】
【課題】 本発明は、透水性コンクリ−トの所要の強度
を保持すると共に、品質の均一化及び製造の容易化を図
ることができる透水性コンクリ−トを提供することを課
題とする。
【解決手段】 上記課題を解決するための手段として、
本発明は、コンクリ−ト内にアルカリ分解性のポリエス
テルファイバ−を混在させて、コンクリ−ト内に空隙を
均一に形成したことを特徴とする、透水性コンクリ−ト
を提供する。また、この透水性コンクリ−トにおいて、
前記ポリエステルファイバ−として、径１mm前後、長さ
２０〜３０mm程度のものを用いたことを特徴とする、透
水性コンクリ−トを提供する。(57) [Problem] To provide a water-permeable concrete which can maintain the required strength of the water-permeable concrete and can achieve uniform quality and easy production. As an issue. SOLUTION: As means for solving the above problems,
The present invention provides a water-permeable concrete characterized in that an alkali-decomposable polyester fiber is mixed in the concrete to uniformly form voids in the concrete. Also, in this permeable concrete,
The present invention provides a water-permeable concrete characterized by using a polyester fiber having a diameter of about 1 mm and a length of about 20 to 30 mm.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、透水性を有するコ
ンクリ−トに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete having water permeability.
【０００２】[0002]
【発明が解決しようとする課題】従来、透水性コンクリ
−トの製造法としては、細骨材又は粗骨材をセメントペ
−ストで接合する方法が広く用いられているが、この製
造法には下記のような問題点がある。Conventionally, as a method for producing a permeable concrete, a method of joining fine aggregate or coarse aggregate with cement paste has been widely used. There are the following problems.
【０００３】＜イ＞上記製造法によって得られるコンク
リ−トは、用いる細骨材や粗骨材の配合比、又は粒径に
応じて内部に空隙を形成し透水性を付与することが可能
であるが、その構造上、強度に問題があるために利用用
途が制限されている。<A> The concrete obtained by the above-described production method can form voids therein to impart water permeability according to the mixing ratio of the fine aggregate and coarse aggregate used or the particle size. However, due to its structure, there is a problem in strength, so its use is limited.
【０００４】＜ロ＞また、内部に形成させた空隙の径
は、用いる骨材の種類や粒径によって大きく左右される
ために、均一な品質のコンクリ−トを再現性良く製造す
ることが困難である。<B> Further, since the diameter of the voids formed therein is greatly affected by the type and particle size of the aggregate used, it is difficult to produce concrete of uniform quality with good reproducibility. It is.
【０００５】＜ハ＞さらに、製造方法は、所定の型に骨
材を充填した後にセメントペ−ストを注入する方法であ
るため、骨材を均一に分散させるには製造者の熟練した
技術が必要である。<C> Further, since the manufacturing method is a method of filling a predetermined mold with the aggregate and then injecting the cement paste, a skilled technique of the manufacturer is required to uniformly disperse the aggregate. It is.
【０００６】＜ニ＞以上の理由から、従来技術で製造さ
れる透水性コンクリ−トは、大規模な施工には適用が困
難である。<D> For the above reasons, it is difficult to apply the permeable concrete manufactured by the prior art to large-scale construction.
【０００７】[0007]
【発明の目的】本発明は、上記のような問題点を解決す
るためになされたもので、透水性コンクリ−トの所要の
強度を保持すると共に、品質の均一化及び製造の容易化
を図ることができる透水性コンクリ−トを提供すること
を目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and aims to maintain the required strength of the water-permeable concrete, to make the quality uniform and to facilitate the production. It is an object of the present invention to provide a permeable concrete that can be used.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
の手段として、本発明は、コンクリ−ト内にアルカリ分
解性のポリエステルファイバ−を混在させて、コンクリ
−ト内に空隙を均一に形成したことを特徴とする、透水
性コンクリ−トを提供する。また、この透水性コンクリ
−トにおいて、前記ポリエステルファイバ−として、径
１mm前後、長さ２０〜３０mm程度のものを用いたことを
特徴とする、透水性コンクリ−トを提供する。As a means for solving the above-mentioned problems, the present invention provides a method in which an alkali-decomposable polyester fiber is mixed in a concrete so that voids are uniformly formed in the concrete. The present invention provides a permeable concrete characterized in that: In addition, the present invention provides a water-permeable concrete characterized in that the polyester fiber has a diameter of about 1 mm and a length of about 20 to 30 mm.
【０００９】[0009]
【発明の実施の形態】本発明は、コンクリ−ト内に、ア
ルカリ分解性のある脂肪族ポリエステル又は芳香族ポリ
エステル樹脂を用いたファイバ−を混在させて形成し
た、透水性コンクリ−トである。BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a water-permeable concrete formed by mixing fibers using an alkali-decomposable aliphatic polyester or aromatic polyester resin in a concrete.
【００１０】用いるポリエステル系樹脂としては、アル
カリ加水分解性がある脂肪族ポリエステル又は芳香族ポ
リエステル系樹脂であれば特に制限無く使用できる。こ
れらのアルカリ分解性樹脂の具体例としては、化学合成
によるポリエステル系のポリマ−と、微生物により製造
されるポリマ−がある。As the polyester resin to be used, any aliphatic polyester or aromatic polyester resin having alkali hydrolysis property can be used without any particular limitation. Specific examples of these alkali-decomposable resins include polyester-based polymers produced by chemical synthesis and polymers produced by microorganisms.
【００１１】化学合成により製造されるポリエステル系
のポリマ−としては、例えばポリカプロラクトン、ポリ
グリコ−ル酸、ポリ乳酸、脂肪族及び芳香族ポリエステ
ルなどが挙げられる。Examples of the polyester polymer produced by chemical synthesis include polycaprolactone, polyglycolic acid, polylactic acid, aliphatic and aromatic polyesters.
【００１２】また、微生物によって製造するポリマ−の
例としては、ポリエステル系の３−ヒドロキシ酪酸、３
−ヒドロキシ吉草酸の単独若しくはそれらの共重合物な
どがある。これらの中でも特に、結晶性が高く加水分解
性と共に生分解性を持つポリ乳酸、３−ヒドロキシ酪酸
と３−ヒドロキシ吉草酸の単独若しくはそれらの共重合
物、ポリグルコ−ル酸などが望ましい。Examples of polymers produced by microorganisms include polyester-based 3-hydroxybutyric acid,
-Hydroxyvaleric acid alone or a copolymer thereof. Among these, polylactic acid having high crystallinity and being hydrolyzable and biodegradable, 3-hydroxybutyric acid and 3-hydroxyvaleric acid alone or a copolymer thereof, and polygluconic acid are particularly desirable.
【００１３】これらのポリエステル系樹脂で成形加工し
たアルカリ分解性ファイバ−をコンクリ−トに均一に混
在させた後、バイブレ−タを用いながら所定の型枠内に
打設する。この時用いるファイバ−としては、系１mm前
後、長さ２０〜３０mmのものが望ましい。また、コンク
リ−トへの充填率は、単位コンクリ−ト容積当たり１０
〜１５kg／ｍ３ の範囲である。After the alkali-decomposable fibers molded with these polyester resins are uniformly mixed in a concrete, they are cast into a predetermined mold using a vibrator. As the fiber used at this time, a fiber having a length of about 1 mm and a length of 20 to 30 mm is desirable. The filling rate of the concrete is 10 units per unit volume of the concrete.
１５15 kg / m 3.
【００１４】[0014]
【作用】コンクリ−トの固化と共に混在させたファイバ
−は、コンクリ−トから遊離するアルカリによって分解
される。これによって、型枠撤去時には、打設したコン
クリ−ト内に均一な空隙が形成される。また、目的とす
るコンクリ−ト内の空隙率は、充填するファイバ−の径
によって制御することが可能である。さらに、本発明に
よって得られる透水性コンクリ−トは、従来技術で製造
されるものより強度を高く保持することが可能である。The fibers mixed together with the solidification of the concrete are decomposed by the alkali liberated from the concrete. Thereby, at the time of removing the formwork, a uniform gap is formed in the cast concrete. The porosity in the target concrete can be controlled by the diameter of the fiber to be filled. Furthermore, the permeable concrete obtained according to the invention can be kept stronger than those produced according to the prior art.
【００１５】[0015]
【発明の効果】本発明は以上のように、透水性コンクリ
−トの所要の強度を保持することができるため、大型施
工物件への提供も可能である。従って、都市型洪水の問
題となるアスファルトの代替や、地下水レベルが問題と
なる地中連壁などの用途に適用することができる。As described above, since the present invention can maintain the required strength of the permeable concrete, it can be provided to a large-scale construction article. Therefore, the present invention can be applied to the use of asphalt, which is a problem of urban flooding, and the use of underground connecting wall, which is a problem of groundwater level.
【００１６】また、充填するファイバ−の径を変えるこ
とによって、コンクリ−ト内の空隙率を制御することが
できる。そのため、空隙率のバラツキを最小限に抑え
て、品質の均一化を図ることができる。Further, the porosity in the concrete can be controlled by changing the diameter of the fiber to be filled. Therefore, it is possible to minimize the variation in the porosity and to achieve uniform quality.
【００１７】さらに、従来のように骨材を均一に分散さ
せる熟練を要する技術が不要であるため、製造の容易化
を図ることができる。Further, since a technique requiring skill to disperse the aggregate uniformly as in the prior art is not required, the production can be facilitated.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年１０月２１日[Submission date] October 21, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Correction target item name] Brief description of drawings
【補正方法】削除[Correction method] Deleted
Claims (2)
エステルファイバ−を混在させて、 コンクリ−ト内に空隙を均一に形成したことを特徴とす
る、 透水性コンクリ−ト。1. A water-permeable concrete characterized in that an alkali-decomposable polyester fiber is mixed in the concrete so that voids are uniformly formed in the concrete.
おいて、前記ポリエステルファイバ−としては、径１mm
前後、長さ２０〜３０mm程度のものを用いたことを特徴
とする、透水性コンクリ−ト。2. The permeable concrete according to claim 1, wherein the polyester fiber has a diameter of 1 mm.
Water permeable concrete characterized by using a material having a length of about 20 to 30 mm before and after.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22043296A JPH1053473A (en) | 1996-08-02 | 1996-08-02 | Permeable concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22043296A JPH1053473A (en) | 1996-08-02 | 1996-08-02 | Permeable concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1053473A true JPH1053473A (en) | 1998-02-24 |
Family
ID=16751024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22043296A Pending JPH1053473A (en) | 1996-08-02 | 1996-08-02 | Permeable concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1053473A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265030A (en) * | 2005-03-23 | 2006-10-05 | Takenaka Komuten Co Ltd | Carbon dioxide fixed molded body, concrete composition for forming the molded body, and method for producing carbon dioxide fixed molded body using the same |
| JP2007008748A (en) * | 2005-06-29 | 2007-01-18 | Takenaka Komuten Co Ltd | Concrete composition for forming a carbon dioxide-fixed molded body, carbon dioxide-fixed molded body comprising the composition, and method for producing the same |
| JP2007008749A (en) * | 2005-06-29 | 2007-01-18 | Takenaka Komuten Co Ltd | Concrete composition for forming carbon dioxide fixing formed body, carbon dioxide fixing formed body made of the composition, and method of manufacturing the formed body |
| JP2009507746A (en) * | 2005-06-14 | 2009-02-26 | コンストラクション リサーチ アンド テクノロジー ゲーエムベーハー | Method for imparting freezing resistance and melting resistance to cementitious compositions |
| JP2017522256A (en) * | 2014-07-17 | 2017-08-10 | テクニシュ ユニベルシテイト デルフトＴｅｃｈｎｉｓｃｈｅ Ｕｎｉｖｅｒｓｉｔｅｉｔ Ｄｅｌｆｔ | Cement material manufacturing method |
-
1996
- 1996-08-02 JP JP22043296A patent/JPH1053473A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265030A (en) * | 2005-03-23 | 2006-10-05 | Takenaka Komuten Co Ltd | Carbon dioxide fixed molded body, concrete composition for forming the molded body, and method for producing carbon dioxide fixed molded body using the same |
| JP2009507746A (en) * | 2005-06-14 | 2009-02-26 | コンストラクション リサーチ アンド テクノロジー ゲーエムベーハー | Method for imparting freezing resistance and melting resistance to cementitious compositions |
| JP2007008748A (en) * | 2005-06-29 | 2007-01-18 | Takenaka Komuten Co Ltd | Concrete composition for forming a carbon dioxide-fixed molded body, carbon dioxide-fixed molded body comprising the composition, and method for producing the same |
| JP2007008749A (en) * | 2005-06-29 | 2007-01-18 | Takenaka Komuten Co Ltd | Concrete composition for forming carbon dioxide fixing formed body, carbon dioxide fixing formed body made of the composition, and method of manufacturing the formed body |
| JP2017522256A (en) * | 2014-07-17 | 2017-08-10 | テクニシュ ユニベルシテイト デルフトＴｅｃｈｎｉｓｃｈｅ Ｕｎｉｖｅｒｓｉｔｅｉｔ Ｄｅｌｆｔ | Cement material manufacturing method |
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