JPH07206537A - Porous concrete and production of molded article thereof - Google Patents
Porous concrete and production of molded article thereofInfo
- Publication number
- JPH07206537A JPH07206537A JP19296794A JP19296794A JPH07206537A JP H07206537 A JPH07206537 A JP H07206537A JP 19296794 A JP19296794 A JP 19296794A JP 19296794 A JP19296794 A JP 19296794A JP H07206537 A JPH07206537 A JP H07206537A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- coarse aggregate
- weight ratio
- paste
- aggregate
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000035699 permeability Effects 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 11
- 239000008187 granular material Substances 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 239000012615 aggregate Substances 0.000 description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004898 kneading Methods 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、大きな透水性と、一定
以上の強度を有するポーラスコンクリート及びその成形
体の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous concrete having a large water permeability and a strength not lower than a certain level, and a method for producing a molded product thereof.
【０００２】[0002]
【従来の技術】従来、緑化コンクリート等に用いられる
ポーラスコンクリートの製造方法としては、セメント等
の粉体と、該粉体１００％に対する重量比が約３５％の
水とからなるペーストを予め練っておき、ミキサーに粗
骨材と、該粗骨材１００％に対する容積比が２０〜３０
％の上記ペーストを投入して混練し、上記ペーストを粗
骨材にまぶす方法がとられてきた。なお、ここでの重量
比、容積比は、ともに外割りであり、以下も、特に断ら
ない限り外割りを意味する。2. Description of the Related Art Conventionally, as a method for producing porous concrete used for greening concrete or the like, a paste made of powder such as cement and water whose weight ratio is about 35% relative to 100% of the powder is kneaded in advance. Every time, the coarse aggregate is added to the mixer, and the volume ratio to the coarse aggregate 100% is 20 to 30.
%, The paste was added and kneaded, and coarse paste was sprinkled with the paste. It should be noted that the weight ratio and the volume ratio here are both outside proportions, and the following also means outside proportions unless otherwise specified.
【０００３】ここで、上記緑化コンクリートとは、例え
ば、河川の側壁等において、コンクリート上に盛られた
表土に植栽された植物が、その根をコンクリート内に伸
張し貫通して、コンクリートの裏側の土に達することを
可能とするようなコンクリートをいう。Here, the above-mentioned green concrete means, for example, on the side wall of a river, a plant planted on the topsoil on the concrete extends its root into the concrete and penetrates through it, and The concrete that makes it possible to reach the soil.
【０００４】[0004]
【発明が解決しようとする課題】しかし、かかる組成の
コンクリートを型枠に詰めて振動で締め固めを行なった
場合、ペーストが型枠の底部に流れ落ちて空隙を埋める
ため、透水係数の低下を招くとともに、成形体上部のペ
ースト量が不足するため、強度の低下が起こる。すなわ
ち、従来の方法では、成形体上部の強度を高く保持し、
かつ、成形体下部の透水係数を大きなものとすることが
できない。従来の技術によった場合、例えば、粒径が１
３ｍｍ程度の粗骨材では、１．５ｃｍ／ｓｅｃ程度の透
水係数と、１５０ｋｇｆ／ｃｍ2 程度の圧縮強度を有す
るポーラスコンクリートを得るのが限度であり、粒径が
５ｍｍ程度の粗骨材では、１．０ｃｍ／ｓｅｃ程度の透
水係数と２００ｋｇｆ／ｃｍ2 程度の圧縮強度を有する
ポーラスコンクリートを得るのが限度である。However, when concrete having such a composition is packed in a mold and compacted by vibration, the paste flows down to the bottom of the mold to fill the voids, resulting in a decrease in the hydraulic conductivity. At the same time, the amount of paste on the upper part of the molded body becomes insufficient, resulting in a decrease in strength. That is, in the conventional method, the strength of the upper part of the molded body is kept high,
Moreover, it is not possible to increase the hydraulic conductivity of the lower part of the molded body. According to the conventional technique, for example, the particle size is 1
With coarse aggregate of about 3 mm, the limit is to obtain porous concrete having a water permeability of about 1.5 cm / sec and a compressive strength of about 150 kgf / cm 2 , and with coarse aggregate with a particle size of about 5 mm, The limit is to obtain porous concrete having a water permeability of about 1.0 cm / sec and a compressive strength of about 200 kgf / cm 2 .
【０００５】本発明の目的は、良好な透水係数および圧
縮強度を有するポーラスコンクリート、及びその成形体
の製造方法を提供することにある。An object of the present invention is to provide a porous concrete having a good hydraulic conductivity and a good compressive strength, and a method for producing a molded body thereof.
【０００６】[0006]
【課題を解決するための手段】本発明は、粗骨材と、セ
メント及び必要に応じて添加されるその他の材料からな
る粉体と、該粉体に対する重量比が０〜３００％の細骨
材と、該粉体に対する重量比が８〜３０％の水と、上記
粉体に対する重量比が１〜５％の界面活性剤とを上記粗
骨材１００％に対してその容積比が３０〜５０％となる
ようにしてミキサーに投入して混練し、上記粗骨材に粗
骨材以外の材料からなるペーストが被覆された状態と
し、未固化状態の粒体からなる混練物を型枠内に投入
し、振動を加えることにより該粒体を相互に付着させ、
養生を行って硬化させることを特徴とするポーラスコン
クリート成形体の製造方法、及びポーラスコンクリート
により、上記課題を解決するものである。以下、本発明
を詳細に述べる。DISCLOSURE OF THE INVENTION The present invention provides a coarse aggregate, a powder made of cement and other materials added as necessary, and a fine bone having a weight ratio of 0 to 300% to the powder. Material, water having a weight ratio to the powder of 8 to 30%, and a surfactant having a weight ratio to the powder of 1 to 5% with respect to 100% of the coarse aggregate, the volume ratio of 30 to The kneaded product is put into a mixer so as to be 50% and kneaded, and the above-mentioned coarse aggregate is covered with a paste made of a material other than the coarse aggregate. , And attach the particles to each other by applying vibration,
The above problem is solved by a method for producing a porous concrete molded body characterized by curing and hardening, and a porous concrete. Hereinafter, the present invention will be described in detail.
【０００７】本発明で用いられる粗骨材としては、粒径
２．５ｍｍ以上の粒体であれば任意の材質のものが用い
られる。例えば、軽量骨材や普通骨材が挙げられる。As the coarse aggregate used in the present invention, any material can be used as long as it is a granule having a particle diameter of 2.5 mm or more. For example, lightweight aggregates and normal aggregates can be mentioned.
【０００８】セメントとしては、例えば、普通ポルトラ
ンドセメント、早強ポルトランドセメント等の水硬性の
セメントが挙げられる。Examples of the cement include hydraulic cements such as ordinary Portland cement and early strength Portland cement.
【０００９】必要に応じて添加されるその他の材料とし
ては、例えば、フライアッシュ、高炉スラグ粉末、シリ
カフューム、石灰石粉、硅石粉等の無機質粉体が挙げら
れる。これらの材料の粉体中に占める容積の割合は、内
割りで０〜６０％程度である。これらの材料の添加によ
り、強度の向上等を図ることができる。なお、これらの
材料と上記セメントとで粉体を構成する。Examples of other materials added as necessary include inorganic powders such as fly ash, blast furnace slag powder, silica fume, limestone powder, and silica powder. The proportion of the volume of these materials in the powder is about 0 to 60% as an internal division. By adding these materials, the strength can be improved. In addition, a powder is formed by these materials and the above cement.
【００１０】細骨材としては、粗骨材の粒径が５ｍｍ以
上の粒体の場合は粒径５ｍｍ未満の粒体、粗骨材の粒径
が２．５〜５ｍｍの粒体の場合は粒径２．５ｍｍ未満の
粒体であれば任意のものが用いられる。細骨材の粒径
は、好ましくは粒径が５ｍｍ以上および２．５〜５ｍｍ
の粗骨体に対し、それぞれ２．５ｍｍ以下および１．５
ｍｍ以下であり、より好ましくはそれぞれ１ｍｍ以下お
よび０．５ｍｍ以下である。細骨材の添加量は、上記粉
体に対して重量比で３００％以下であり、通常１００％
程度である。細骨材の添加により、乾燥による収縮を抑
制することができる。As the fine aggregate, when the coarse aggregate has a grain size of 5 mm or more, the fine aggregate has a grain size of less than 5 mm, and when the coarse aggregate has a grain size of 2.5 to 5 mm, the fine aggregate has a grain size of less than 5 mm. Any particles having a particle diameter of less than 2.5 mm may be used. The particle size of the fine aggregate is preferably 5 mm or more and 2.5 to 5 mm
2.5 mm or less and 1.5 for coarse bone
mm or less, and more preferably 1 mm or less and 0.5 mm or less, respectively. The amount of fine aggregate added is 300% or less in weight ratio to the above powder, and usually 100%.
It is a degree. By adding the fine aggregate, shrinkage due to drying can be suppressed.
【００１１】水の添加量は、一般的には上記粉体の重量
に対して８〜３０％である。８％未満では造粒できず、
また３０％より大きいと混練時に粗骨材の粒体同士が結
合してしまい、透水係数が小さくなる。The amount of water added is generally 8 to 30% based on the weight of the powder. If it is less than 8%, it cannot be granulated,
On the other hand, if it is more than 30%, the particles of the coarse aggregate are bound to each other during kneading, and the water permeability becomes small.
【００１２】なお、水の添加量の好適値は、粗骨材の種
類、ミキサーの種類等により異なる。例えば、粗骨材と
して軽量骨材の表乾品を使用した場合、好ましくは８〜
１５％、より好ましくは９〜１３％である。普通骨材の
表乾品を使用した場合、オムニタイプのミキサーでは好
ましくは１３〜１９％、より好ましくは１５〜１７％、
パンタイプでは好ましくは１５〜２２％、より好ましく
は１６〜１９％、二軸タイプでは好ましくは１７〜２３
％、より好ましくは１８〜２１％である。The suitable amount of water added varies depending on the type of coarse aggregate, the type of mixer, and the like. For example, when a surface dry product of lightweight aggregate is used as the coarse aggregate, it is preferably 8 to
It is 15%, more preferably 9 to 13%. When the surface dried product of ordinary aggregate is used, it is preferably 13 to 19%, more preferably 15 to 17% in an omni type mixer,
The bread type is preferably 15 to 22%, more preferably 16 to 19%, and the biaxial type is preferably 17 to 23%.
%, More preferably 18 to 21%.
【００１３】界面活性剤としては、例えば、マイティ１
５０（花王株式会社製、商品名）等の普通に使用されて
いる高性能減水剤等が挙げられる。添加量は、上記粉体
の重量に対して１〜５％である。界面活性剤の添加は、
少ない水量で造粒するのに効果的である。As the surfactant, for example, Mighty 1
Examples include commonly used high-performance water reducing agents such as 50 (trade name, manufactured by Kao Corporation). The addition amount is 1 to 5% based on the weight of the powder. Addition of surfactant
It is effective for granulating with a small amount of water.
【００１４】粗骨材に対するペースト（セメント等の粉
体、水、界面活性剤の混合物）またはモルタル（セメン
ト等の粉体、細骨材、水、界面活性剤の混合物）の容積
比は、３０〜５０％である。３０％未満では十分に造粒
できず、５０％より大きいと混練時に粗骨材の粒体同士
の結合が起こり、十分な透水性を得ることができない。
なお、本明細書中、他の箇所ではペーストとモルタルを
総称してペーストという。The volume ratio of paste (mixture of powder such as cement, water and surfactant) or mortar (mixture of powder such as cement, fine aggregate, water and surfactant) to coarse aggregate is 30. ~ 50%. If it is less than 30%, the granules cannot be sufficiently granulated, and if it is more than 50%, the coarse aggregate particles are bound to each other during kneading, and sufficient water permeability cannot be obtained.
In addition, in this specification, the paste and the mortar are collectively referred to as the paste in other places.
【００１５】混練に用いるミキサーは、通常のコンクリ
ートの混練に用いられるどのタイプのものでもよく、例
えば、オムニタイプミキサー、パンタイプミキサー、２
軸ミキサー等が用いられる。混練方法は、特に限定され
ないが、一般的には、材料を一括してミキサーに投入し
て、１分以上混練することにより造粒される。粗骨材表
面に被覆されるペースト層の厚さは例えば０．５〜５．
０ｍｍである。The mixer used for kneading may be of any type used for ordinary kneading of concrete, for example, omni type mixer, pan type mixer, 2
A shaft mixer or the like is used. The kneading method is not particularly limited, but generally, the materials are put into a mixer all together and kneaded for 1 minute or more to granulate. The thickness of the paste layer coated on the surface of the coarse aggregate is, for example, 0.5 to 5.
It is 0 mm.
【００１６】こうして得られたポーラスコンクリート
は、粗骨材粒体が互いに独立しており、容易には相互に
付着しないため、運搬及び打設が容易であり、型枠内に
打設した後の十分な振動締め固めが可能である。この振
動締め固めにより、粒子相互間で接触しているペースト
のコーティング層は、容易に相互付着し一体化するが、
粗骨材より剥離して底部に流れ出すようなことはない。
したがって、従来のようにペーストが型枠の底部に流れ
落ちて透水係数が低下したり、成形体上部のペースト量
が不足して強度の低下を招くことがない。In the porous concrete thus obtained, the coarse aggregate particles are independent of each other and do not easily adhere to each other, so that they are easy to carry and place, and after being placed in the formwork. Sufficient vibration compaction is possible. Due to this vibration compaction, the coating layers of the paste that are in contact with each other are easily attached and integrated with each other.
It does not separate from the coarse aggregate and flow to the bottom.
Therefore, unlike the conventional case, the paste does not flow down to the bottom of the mold to lower the water permeability, and the paste amount in the upper part of the molded body does not become insufficient so that the strength is not lowered.
【００１７】[0017]
実施例１〜４、比較例１〜４ 以下の材料を用い、表１に示す重量割合でパンタイプミ
キサーに一括投入し、２分間混練した後、φ１０×２０
ｃｍの型枠に納め、６０００ｒｐｍのテーブルバイブレ
ーターで振動締め固めを行ない、７日間、２０℃の水中
にて養生を行なった。その結果、表１に示す圧縮強度及
び透水係数のポーラスコンクリートが得られた。Examples 1 to 4 and Comparative Examples 1 to 4 Using the following materials, the ingredients were put into a pan-type mixer at a weight ratio shown in Table 1 and kneaded for 2 minutes, and then φ10 × 20.
The sample was placed in a mold of cm, vibrated and compacted with a table vibrator of 6000 rpm, and cured in water at 20 ° C. for 7 days. As a result, porous concrete having the compressive strength and the hydraulic conductivity shown in Table 1 was obtained.
【００１８】比較例１と比較例２は、水粉体重量比が本
願発明の範囲外の例であり、比較例１では圧縮強度と透
水係数が劣り、比較例２では透水係数が劣っている。比
較例３と比較例４は、粗骨材ペースト容積比が本願発明
の範囲外の例であり、比較例３では圧縮強度が劣り、比
較例４では透水係数が劣っている。Comparative Examples 1 and 2 are examples in which the weight ratio of water powder is outside the range of the present invention. Comparative Example 1 is inferior in compressive strength and water permeability, and Comparative Example 2 is inferior in water permeability coefficient. . Comparative Examples 3 and 4 are examples in which the volume ratio of the coarse aggregate paste is outside the range of the present invention. Comparative Example 3 is inferior in compressive strength, and Comparative Example 4 is inferior in water permeability coefficient.
【００１９】普通ポルトランドセメント：日本セメント
株式会社製アサノ普通ポルトランドセメント 高炉スラグ粉末 ：第一セメント株式会社製フ
ァインセラメント 高性能減水剤 ：花王株式会社製マイティ１
５０ 細骨材 ：日本セメント株式会社製硅
砂７号（粒径０．３ｍｍ以下） 砕石粗骨材 ：奥多摩鉱業株式会社製砕石
５号（１３〜２０ｍｍ） 軽量粗骨材 ：日本セメント株式会社製ア
サノライト（５〜２０ｍｍ）Ordinary Portland Cement: Asano Ordinary Portland Cement Blast Furnace Slag Powder: Nihon Cement Co., Ltd .: Fine Cerament High Performance Water Reducing Agent: Daiichi Cement Co., Ltd .: Mighty 1 by Kao Corporation
50 Fine aggregate: Nihon Cement Co., Ltd. silica sand No. 7 (particle size 0.3 mm or less) Crushed stone coarse aggregate: Okutama Mining Co., Ltd. crushed stone No. 5 (13 to 20 mm) Light weight coarse aggregate: Nippon Cement Co., Ltd. Asano Light (5-20mm)
【００２０】[0020]
【表１】 [Table 1]
【００２１】実施例５〜７ 以下の材料を用い、表２に示す重量配合で２軸ミキサー
にセメント、高炉スラグ、硅砂、粗骨材を投入し、３０
秒間空練りをした後、アジテータートラック内に排出
し、現場に到着後、水、高性能減水剤を投入し、２分間
混練した。その後、φ１０×２０ｃｍおよびφ１５×３
０ｃｍの型枠に納め、タンパーで締め固めを行い、７日
間、約１０℃〜２５℃の気中にて養生を行なった。その
結果、表２に示す圧縮強度及び透水係数のポーラスコン
クリートが得られた。実施例６のポーラスコンクリート
は、他の実施例と比べて透水係数が小さいものの大きな
圧縮強度をもつ。Examples 5 to 7 Cement, blast furnace slag, silica sand and coarse aggregate were added to a twin-screw mixer in the weight proportions shown in Table 2 using the following materials, and 30
After kneading for 2 seconds, the mixture was discharged into the agitator truck, and upon arrival at the site, water and a high-performance water reducing agent were added and kneading was performed for 2 minutes. After that, φ10 × 20cm and φ15 × 3
It was placed in a 0 cm frame, compacted with a tamper, and cured for 7 days in the air at about 10 ° C to 25 ° C. As a result, porous concrete having the compressive strength and the hydraulic conductivity shown in Table 2 was obtained. The porous concrete of Example 6 has a small hydraulic conductivity as compared with the other Examples, but has a large compressive strength.
【００２２】普通ポルトランドセメント：日本セメント
株式会社製アサノ普通ポルトランドセメント 高炉スラグ粉末 ：第一セメント株式会社製フ
ァインセラメント 高性能減水剤 ：花王株式会社製マイティ１
５０ 細骨材 ：日本セメント株式会社製硅
砂７号（粒径０．３ｍｍ以下） 砕石粗骨材 ：奥多摩鉱業株式会社製砕石
４号（２０〜４０ｍｍ）、砕石５号（１３〜２０ｍ
ｍ）、砕石７号（２．５〜５．０ｍｍ）Ordinary Portland Cement: Nippon Cement Co., Ltd. Asano Ordinary Portland Cement Blast furnace slag powder: Daiichi Cement Co., Ltd. Fine Cerament High-performance water reducing agent: Kao Co., Ltd. Mighty 1
50 Fine aggregate: Nihon Cement Co., Ltd. silica sand No. 7 (particle size 0.3 mm or less) Crushed stone coarse aggregate: Okutama Mining Co., Ltd. crushed stone No. 4 (20-40 mm), crushed stone No. 5 (13-20 m)
m), crushed stone No. 7 (2.5 to 5.0 mm)
【００２３】[0023]
【表２】 [Table 2]
【００２４】[0024]
【発明の効果】本発明にかかるポーラスコンクリート
は、大きな透水係数と、一定以上の強度を有する。透水
係数は１．２〜１５ｃｍ／ｓｅｃ程度であり、圧縮強度
は１００ｋｇｆ／ｃｍ2 以上である。そのため、例え
ば、本発明にかかるポーラスコンクリートを緑化コンク
リートとして用いた場合には、従来植栽できなかった種
類の植物についても植栽が可能となる等、広く応用でき
る。EFFECT OF THE INVENTION The porous concrete according to the present invention has a large water permeability and a certain strength or more. The water permeability is about 1.2 to 15 cm / sec, and the compressive strength is 100 kgf / cm 2 or more. Therefore, for example, when the porous concrete according to the present invention is used as greening concrete, it can be widely applied, for example, it is possible to plant even a type of plant that could not be conventionally planted.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 //(Ｃ０４Ｂ 28/02 18:14 Ａ 24:22 Ｚ 14:02） Ｂ 111:40 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location // (C04B 28/02 18:14 A 24:22 Z 14:02) B 111: 40
Claims (3)
加されるその他の材料からなる粉体と、該粉体に対する
重量比が０〜３００％の細骨材と、該粉体に対する重量
比が８〜３０％の水と、該粉体に対する重量比が１〜５
％の界面活性剤とを上記粗骨材１００％に対してその容
積比が３０〜５０％となるようにしてミキサーに投入し
て混練し、上記粗骨材に粗骨材以外の材料からなるペー
ストが被覆された状態とし、未固化状態の粒体からなる
混練物を型枠内に投入し、振動を加えることにより該粒
体を相互に付着させ、養生を行って硬化させることを特
徴とするポーラスコンクリート成形体の製造方法。1. A coarse aggregate, a powder made of cement and other materials optionally added, a fine aggregate having a weight ratio of 0 to 300% to the powder, and a weight to the powder. Water having a ratio of 8 to 30% and a weight ratio to the powder of 1 to 5
% Of the surface-active agent to 100% of the above-mentioned coarse aggregate so that the volume ratio thereof is 30 to 50%, and the mixture is kneaded by being mixed into a mixer, and the above-mentioned coarse aggregate is made of a material other than the coarse aggregate. The paste is in a coated state, a kneaded product consisting of unsolidified granules is put into a mold, the granules are attached to each other by applying vibration, and curing is performed to cure. A method for producing a porous concrete molded body.
の他の材料からなる粉体と、該粉体に対する重量比が０
〜３００％となるような粒径が５ｍｍ未満の細骨材と、
該粉体に対する重量比が８〜３０％の水と、該粉体に対
する重量比が１〜５％の界面活性剤とからなる未固化状
態のペーストを、粗骨材１００％に対してその容積比が
３０〜５０％となるように、粒径が５ｍｍ以上の粗骨材
に被覆させてなる粒体を用い、該粒体を相互に付着させ
て硬化したものからなり、透水係数が１．７ｃｍ／ｓｅ
ｃ以上、圧縮強度が１２０ｋｇｆ／ｃｍ2 以上であるこ
とを特徴とするポーラスコンクリート。2. A powder made of cement and other materials optionally added, and a weight ratio to the powder is 0.
A fine aggregate having a particle size of less than 5 mm such that the particle size is up to 300%,
A paste in an unsolidified state composed of water whose weight ratio to the powder is 8 to 30% and a surfactant whose weight ratio to the powder is 1 to 5% is prepared with respect to 100% of coarse aggregate. A granular material is used which is obtained by coating coarse aggregate having a particle size of 5 mm or more so that the ratio is 30 to 50%, and the granular materials are adhered to each other and cured, and have a water permeability coefficient of 1. 7 cm / se
Porous concrete having a compression strength of c or more and a compression strength of 120 kgf / cm 2 or more.
の他の材料からなる粉体と、該粉体に対する重量比が０
〜３００％となるような粒径が２．５ｍｍ未満の細骨材
と、該粉体に対する重量比が８〜３０％の水と、該粉体
に対する重量比が１〜５％の界面活性剤とからなる未固
化状態のペーストを、粗骨材１００％に対してその容積
比が３０〜５０％となるように粒径が２．５〜５ｍｍの
粗骨材に被覆させてなる粒体を用い、該粒体を相互に付
着させて硬化したものからなり、透水係数が１．２ｃｍ
／ｓｅｃ以上、圧縮強度が２００ｋｇｆ／ｃｍ2 以上で
あることを特徴とするポーラスコンクリート。3. A powder made of cement and other materials optionally added, and a weight ratio to the powder is 0.
Fine aggregate having a particle size of less than 2.5 mm, which is about 300% to 300%, water having a weight ratio to the powder of 8 to 30%, and a surfactant having a weight ratio to the powder of 1 to 5%. Granules obtained by coating a coarse aggregate having a particle size of 2.5 to 5 mm with a paste in an unsolidified state consisting of 100 to 100% of coarse aggregate so that the volume ratio thereof is 30 to 50%. It is composed of the particles which are hardened by adhering them to each other and have a water permeability coefficient of 1.2 cm.
/ Sec or more and a compressive strength of 200 kgf / cm 2 or more, a porous concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19296794A JP3061730B2 (en) | 1993-12-03 | 1994-08-17 | Porous concrete and method for producing molded body thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30366893 | 1993-12-03 | ||
| JP5-303668 | 1993-12-03 | ||
| JP19296794A JP3061730B2 (en) | 1993-12-03 | 1994-08-17 | Porous concrete and method for producing molded body thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07206537A true JPH07206537A (en) | 1995-08-08 |
| JP3061730B2 JP3061730B2 (en) | 2000-07-10 |
Family
ID=26507622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19296794A Expired - Lifetime JP3061730B2 (en) | 1993-12-03 | 1994-08-17 | Porous concrete and method for producing molded body thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3061730B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002226254A (en) * | 2001-01-25 | 2002-08-14 | Taiheiyo Cement Corp | Quick hardening type water permeable concrete |
| JP2002274912A (en) * | 2001-03-14 | 2002-09-25 | Taiheiyo Cement Corp | Paste or mortar for joining water-permeable concrete |
| JP2003104765A (en) * | 2001-09-27 | 2003-04-09 | Sumitomo Osaka Cement Co Ltd | Porous concrete molding for planting and its manufacturing method |
| JP2008088760A (en) * | 2006-10-04 | 2008-04-17 | Wako Concrete Kogyo Kk | Slope block and method for manufacturing the same |
| CN102079105A (en) * | 2010-11-11 | 2011-06-01 | 华南理工大学 | Preparation method of ecological embankment type porous concrete special for plant growing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9212703B2 (en) * | 2007-08-02 | 2015-12-15 | Gm Global Technology Operations, Llc | Torque-transmitting device having a dimpled friction plate |
-
1994
- 1994-08-17 JP JP19296794A patent/JP3061730B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002226254A (en) * | 2001-01-25 | 2002-08-14 | Taiheiyo Cement Corp | Quick hardening type water permeable concrete |
| JP2002274912A (en) * | 2001-03-14 | 2002-09-25 | Taiheiyo Cement Corp | Paste or mortar for joining water-permeable concrete |
| JP4536282B2 (en) * | 2001-03-14 | 2010-09-01 | 太平洋セメント株式会社 | Mortar for permeable concrete splicing |
| JP2003104765A (en) * | 2001-09-27 | 2003-04-09 | Sumitomo Osaka Cement Co Ltd | Porous concrete molding for planting and its manufacturing method |
| JP2008088760A (en) * | 2006-10-04 | 2008-04-17 | Wako Concrete Kogyo Kk | Slope block and method for manufacturing the same |
| CN102079105A (en) * | 2010-11-11 | 2011-06-01 | 华南理工大学 | Preparation method of ecological embankment type porous concrete special for plant growing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3061730B2 (en) | 2000-07-10 |
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