JPH0328152A - Water-permeable concrete composition reinforced with organic fiber - Google Patents
Water-permeable concrete composition reinforced with organic fiberInfo
- Publication number
- JPH0328152A JPH0328152A JP16506889A JP16506889A JPH0328152A JP H0328152 A JPH0328152 A JP H0328152A JP 16506889 A JP16506889 A JP 16506889A JP 16506889 A JP16506889 A JP 16506889A JP H0328152 A JPH0328152 A JP H0328152A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cement
- sieve
- permeable concrete
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 35
- 239000004567 concrete Substances 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 9
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 238000013329 compounding Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 12
- 238000005728 strengthening Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000011041 water permeability test Methods 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 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 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- USDJGQLNFPZEON-UHFFFAOYSA-N [[4,6-bis(hydroxymethylamino)-1,3,5-triazin-2-yl]amino]methanol Chemical compound OCNC1=NC(NCO)=NC(NCO)=N1 USDJGQLNFPZEON-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004499 emulsifiable powder Substances 0.000 description 1
- 239000011210 fiber-reinforced concrete Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、透水性構造体に使用する透水性コンクリート
に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to permeable concrete for use in permeable structures.
従来技術の問題点
透水性コンクリートは、その成分の配合割合の調整によ
り曲げ強度を向上させることは可能であるが、補強材と
して鉄筋もしくは鉄網等を用いた場合には、その性質上
、錆発生という問題を回避することができない。その為
に、十分な補強が出来ず、靭性に劣り、ひび割れを生じ
やすいという欠点がある。Problems with the conventional technology It is possible to improve the bending strength of permeable concrete by adjusting the mixing ratio of its components, but when reinforcing steel bars or wire mesh are used, due to their nature, they are susceptible to rust. The problem of occurrence cannot be avoided. Therefore, it has the disadvantage that it cannot be sufficiently reinforced, has poor toughness, and is prone to cracking.
従って、上記のように透水性コンクリートは、構造体と
しての機能が発揮できないことから、車道のような重要
構造物には使用出来ず、その使用は、歩道のような簡易
な構造物に限定されているのが現状である。Therefore, as mentioned above, permeable concrete cannot function as a structure and cannot be used for important structures such as roadways, and its use is limited to simple structures such as sidewalks. The current situation is that
問題点を解決するための手段
本発明者は、上記の如き技術の現状に鑑みて種々研究を
重ねた結果、補強材として有機繊維を使用することによ
って、従来技術の問題点を実質的に解消もしくは大幅に
軽減し得ることを見出した。Means for Solving the Problems The present inventor has conducted various studies in view of the current state of the technology as described above, and has found that the problems of the prior art have been substantially resolved by using organic fibers as reinforcing materials. Or we have found that it can be significantly reduced.
すなわち、本発明は、１ｍ３当たり３００〜６００ｋｇ
のセメント、７５〜２４０ｋｇの水、０．１〜５．
０体積％の有機繊維及び残部が骨材からなる繊維補強透
水性コンクリート組成物に係る。That is, in the present invention, 300 to 600 kg per m3
of cement, 75-240 kg of water, 0.1-5.
The present invention relates to a fiber-reinforced water-permeable concrete composition comprising 0% by volume of organic fibers and the balance consisting of aggregate.
本発明において、補強材として用いられる有機繊維とは
、ポリビニルアルコール繊維、ポリアクリルニトリル系
繊維、ボリアミド系繊維、ポリオレフィン系繊維、アラ
ミド系繊維等が挙げられるが、これらの中でも特にポリ
ビニルアルコール繊維が、補強効果が大きいので、好ま
しい。In the present invention, organic fibers used as reinforcing materials include polyvinyl alcohol fibers, polyacrylonitrile fibers, polyamide fibers, polyolefin fibers, aramid fibers, etc. Among these, polyvinyl alcohol fibers are particularly It is preferable because it has a large reinforcing effect.
セメント補強用ポリビニルアルコール繊維には、抄造用
とプレミックス用とがあるが、本発明で使用する場合に
は、分散性に優れているブレミックス用のものがより好
ましい。また、プレミックス用にも、収束糸型とモノフ
ィラメント型があるが、分散性の良いモノフィラメント
型がより好ましい。There are two types of polyvinyl alcohol fibers for reinforcing cement, one for paper making and one for premix. When used in the present invention, it is more preferable to use polyvinyl alcohol fiber for bremix, which has excellent dispersibility. There are also convergent thread type and monofilament type for premix use, but the monofilament type is more preferable because of its good dispersibility.
本発明で使用する補強用繊維の繊維長は、通常骨材最大
粒径の１．５倍程度とする。また、繊維の混入率は、コ
ンクリート１ｍ３当たり０．１〜５．０体積％程度の範
囲内にあり、より好ましくは０．５〜２．０体積％程度
である。混入率が、０． １体積％に満たないときは
、期待される補強効果が得られず、５．０体積％を超え
ると、補強効果が頭打ちとなり、無駄に加えることで経
済的な損失が大きくなる。The fiber length of the reinforcing fibers used in the present invention is usually about 1.5 times the maximum particle size of the aggregate. Moreover, the mixing rate of fibers is within the range of about 0.1 to 5.0 volume % per m3 of concrete, and more preferably about 0.5 to 2.0 volume %. The contamination rate is 0. When the amount is less than 1% by volume, the expected reinforcing effect cannot be obtained, and when it exceeds 5.0% by volume, the reinforcing effect reaches a plateau, and unnecessary addition results in large economic losses.
本発明におけるセメントとしては、市販の各種セメント
を使用することが出来る。例えば、早強セメントもしく
は超早強セメントを使用するか、或いはセメントと早強
剤を併用すれば硬化速度を上げることになり、工事期間
を短縮化できる。超速硬セメント（具体的には、大阪セ
メント（株）製“ハイセット”などとして市販されてい
るもの）の使用によっては、初期強度の発現が早く、さ
らに工事期間の短縮化が可能である。As the cement in the present invention, various commercially available cements can be used. For example, by using early-strengthening cement or ultra-early-strengthening cement, or by using cement and an early-strengthening agent in combination, the curing speed can be increased and the construction period can be shortened. By using ultra-fast hardening cement (specifically, commercially available products such as "Hi-Set" manufactured by Osaka Cement Co., Ltd.), initial strength can be developed quickly and the construction period can be further shortened.
また、カラーセメント或いは着色剤を使用すれば、カラ
ー構造体とすることも容易である。Further, by using color cement or a coloring agent, it is easy to form a colored structure.
本発明におけるセメント、水及び骨材の配合量並びに骨
材の粒度分布は、透水性コンクリートの空隙率を１０〜
３５体積％とするように定められたものである。In the present invention, the blending amounts of cement, water, and aggregate as well as the particle size distribution of the aggregate are such that the porosity of water-permeable concrete is 10 to 10.
It is determined to be 35% by volume.
透水性コンクリートの空隙率が１０．体積％を下回ると
、要求される透水係数の確保が困難である。The porosity of permeable concrete is 10. If it is less than % by volume, it is difficult to secure the required hydraulic conductivity.
この透水係数は、透水性舗装の場合には、「透水性舗装
ハンドブック」 （社団法人 日本道路建設業協会編）
に記載のＩ Ｘ Ｉ Ｏ −２ｃｍ／ｓｅｃ以上を満足
させる必要がある。また、空隙率が３５体積％を上回る
と、構造体としての強度低下が著しくなるので好ましく
ない。In the case of permeable pavement, this permeability coefficient is calculated from the "Permeable Pavement Handbook" (edited by the Japan Road Construction Industry Association).
It is necessary to satisfy I X I O -2 cm/sec or more as described in . Further, if the porosity exceeds 35% by volume, the strength of the structure will be significantly reduced, which is not preferable.
セメント及び水の配合量は、透水性コンクリートのバイ
ンダーとして、構造体の強度と施工性を確保出来るよう
に定められたものである。The blending amounts of cement and water are determined to ensure the strength and workability of the structure as a binder for water-permeable concrete.
即ち、水とセメントの配合量は、水／セメント（重量比
、以下Ｗ／Ｃと略称する）が２５〜４０％、より好まし
くは３０〜３５％となるように配合される。Ｗ／Ｃが、
３０％未満の場合には、混合時にパサパサの状態となり
、戊形が出来ず、逆に３５％を超えると、骨材とセメン
トペーストとの分離が生じ、ペースト部分が沈下して下
層部の空隙を埋めた状態で硬化するために、透水性が低
下し、好ましくない。That is, the amounts of water and cement are blended so that the water/cement (weight ratio, hereinafter abbreviated as W/C) is 25 to 40%, more preferably 30 to 35%. W/C is
If it is less than 30%, the mixture will be dry and no shape will be formed.If it exceeds 35%, the aggregate and cement paste will separate, and the paste will sink, causing voids in the lower layer. Since it cures while buried, water permeability decreases, which is undesirable.
従って、セメントの配合量は、通常３００〜６００ｋｇ
／ｍ３の範囲内にあり、より好ましくは３５０〜５００
ｋｇ／ｍ’である。セメントの量が３００ｋｇ／ｍ３に
満たないと、骨材間の付着強度が低下し、一方、６００
ｋｇ／ｍ３を超えるとバインダ一部分の容積が増加し、
透水係数が低下する為に好ましくない。Therefore, the amount of cement mixed is usually 300 to 600 kg.
/m3, more preferably 350 to 500
kg/m'. When the amount of cement is less than 300 kg/m3, the adhesive strength between aggregates decreases;
When it exceeds kg/m3, the volume of a part of the binder increases,
This is not preferable because the hydraulic conductivity decreases.
また、水の配合量は、上記のセメント配合量に対応して
、７５〜２４０ｋｇ／ｍ３の範囲内にあり、より好まし
くは１００〜２００ｋｇ／ｍ’である。Further, the amount of water blended is within the range of 75 to 240 kg/m<3>, and more preferably 100 to 200 kg/m', corresponding to the above-mentioned blended amount of cement.
本発明の組戊物において、上記材料を加えた残部を占め
る骨材には、通常のコンクリート用骨材を用いることが
出来る。骨材の粒度分布は、１３ｍｎ＋フルイ通過重量
百分率が８５％以上、２．５ｍｍフルイ通過重量百分率
が５０％以下、１．２ｍｍフルイ通過重量百分率が２５
％以下、０．６ｗｕｓフルイ通過重量百分率が１０％以
下に調整することが好ましい。In the structure of the present invention, ordinary aggregate for concrete can be used as the aggregate that occupies the remainder after adding the above-mentioned materials. The particle size distribution of the aggregate is as follows: 13mm + weight percentage passing through a sieve is 85% or more, weight percentage passing through a 2.5mm sieve is 50% or less, and weight percentage passing through a 1.2mm sieve is 25%.
% or less, and the weight percentage passing through the 0.6 wus sieve is preferably adjusted to 10% or less.
本発明組成物には、さらに骨材間の付着強度を増す為に
減水剤及び又はセメント添加剤用ボリマーを適宜加える
ことができる。The composition of the present invention may further contain a water reducing agent and/or a cement additive polymer, as appropriate, in order to increase the adhesion strength between aggregates.
本発明における減水剤としては、特に制限されず、公知
のものをそのまま使用することが出来、例えば、ナフタ
リンスルホン酸のホルマリン縮合物の塩を主成分とする
もの（具体的には、花王■製“マイティ１００”マイテ
ィ１５０”、竹本油脂■製“ポールファイン”、山陽国
策パルブ■製“サンフローＰＳＰＩＯＯ”などとして市
販されているもの）、トリメチロールメラミンのモノス
ルホン酸を縮合した水溶性ボリマーを主成分とするもの
（具体的には、昭和電工■製“メルメント−Ｆ １ ０
”などとして市販されているもの）などが挙げられる。The water reducing agent in the present invention is not particularly limited, and any known one can be used as is. For example, one whose main component is a salt of a formalin condensate of naphthalene sulfonic acid (specifically, a "Mighty 100", "Mighty 150", "Pole Fine" manufactured by Takemoto Yushi ■, "Sunflow PSPIOO" manufactured by Sanyo Kokusaku Pulb ■, etc.), water-soluble polymers made by condensing monosulfonic acid of trimethylolmelamine. The main ingredient (specifically, “Melment-F10” manufactured by Showa Denko
” etc.).
減水剤の配合量は、セメント１００重量部に対して０．
０５〜５．０重量部が望ましい。The amount of water reducing agent added is 0.00 parts by weight per 100 parts by weight of cement.
05 to 5.0 parts by weight is desirable.
本発明において、減水剤を使用した場合、上記Ｗ／Ｃは
、２５〜３５％の範囲となり、より好ましくは２７〜３
３％となる。In the present invention, when a water reducing agent is used, the above W/C is in the range of 25 to 35%, more preferably 27 to 3%.
It will be 3%.
また本発明におけるセメント添加剤用ポリマーとしては
、市販のセメント用ボリマーを用いることが出来る。該
セメント用ポリマーには、例えば、水性ポリマーディス
バージョン、再乳化型粉末樹脂（ｐｏｗｄｅｒｅｄ ｅ
ａ＋ｕｌｓ１ｏｎ）、水溶性ボリマー、液状ボリマーな
どのタイプがある。その添加量は、セメント１００重量
部に対して通常１〜２０重量部の範囲である。この範囲
に満たないと添加効果は現れず、またこの範囲を超えて
添加しても、骨材間の付着強度は改善されず、不経済で
ある。Moreover, as the polymer for cement additive in the present invention, a commercially available polymer for cement can be used. The cement polymers include, for example, water-based polymer dispersions, re-emulsifiable powder resins, etc.
There are types such as a+uls1on), water-soluble polymers, and liquid polymers. The amount added is usually in the range of 1 to 20 parts by weight per 100 parts by weight of cement. If the amount is less than this range, the effect of addition will not appear, and if it is added beyond this range, the bond strength between aggregates will not be improved, which is uneconomical.
本発明では、上記材料以外に、シリカフユーム、コンク
リート用膨張剤、収縮低減剤、水中不分離性混和剤、早
強剤などの公知のセメント用混和剤を目的に応じて使用
することが出来る。In the present invention, in addition to the above-mentioned materials, known cement admixtures such as silica fume, expanding agents for concrete, shrinkage reducing agents, inseparable admixtures in water, and early strengthening agents can be used depending on the purpose.
本発明の透水性コンクリート組戊物の製造は、通常の混
合方法により行なえば良い。混合順序も特に限定されな
いが、コンクリートの性能の点からは、他成分の混合後
に有機繊維を添加することがより好ましい。The water-permeable concrete assembly of the present invention may be manufactured by a conventional mixing method. The mixing order is not particularly limited either, but from the viewpoint of concrete performance, it is more preferable to add the organic fibers after mixing other components.
本発明の透水性コンクリート組成物を舗設に用いた場合
、舗設後の養生方法及び養生期間は、通常のコンクリー
ト舗装に準じて行なえばよい。養生方法は、気中養生、
マット養生、膜養生のいずれも可能である。膜養生の場
合、養生剤を表面に塗布し過ぎて空隙を埋めないように
塗布量の管理に注意する必要がある。また養生期間は、
使用するセメントの種類に応じて選択され、通常、普通
セメントで約２週間、早強セメントで約１週間、超速硬
セメントで約半日である。When the water-permeable concrete composition of the present invention is used for paving, the curing method and curing period after paving may be carried out in accordance with ordinary concrete paving. The curing method is air curing,
Both mat curing and membrane curing are possible. In the case of film curing, care must be taken to control the amount of curing agent applied so as not to apply too much to the surface and fill in the voids. In addition, the curing period is
It is selected depending on the type of cement used, and usually takes about two weeks for ordinary cement, about one week for early-strengthening cement, and about half a day for super-fast-hardening cement.
発明の効果
有機繊維を補強材とする本発明の透水性コンクリート組
成物は、硬化すると、従来のものに比し引張り強度に優
れ、また一般的なコンクリートと同等或いはそれ以上の
弾性係数を有し、靭性が著しく改善され、耐衝撃性に優
れたコンクリートとなる。Effects of the Invention The water-permeable concrete composition of the present invention, which uses organic fiber as a reinforcing material, has superior tensile strength when cured compared to conventional ones, and has an elastic modulus equal to or higher than that of ordinary concrete. , the toughness is significantly improved and the resulting concrete has excellent impact resistance.
また、減水剤及びセメント用ボリマーを併用することに
より骨材間の付着強度の向上をさせることもできる。Furthermore, the adhesion strength between aggregates can be improved by using a water reducing agent and a cement polymer in combination.
本発明の透水性コンクリート組成物の硬化物は、コンク
リートとして不可欠な耐アルカリ性に優れ、耐候性も良
好で、発錆及び強度劣化がなく、軽量で取扱い性に優れ
ており、ランニングコストを低減させる。The cured product of the water-permeable concrete composition of the present invention has excellent alkali resistance, which is essential for concrete, good weather resistance, no rusting or strength deterioration, and is lightweight and easy to handle, reducing running costs. .
さらに、本発明の組成物の硬化体は、本来の特性である
透水性に優れているので、雨水の一時貯留もしくは地中
への還元によって、表面流出量の低減、地盤沈下の抑制
などの効果を発揮する。Furthermore, since the cured product of the composition of the present invention has excellent water permeability, which is an inherent characteristic, temporary storage of rainwater or return to the ground can have effects such as reducing surface runoff and suppressing ground subsidence. demonstrate.
特に有機繊維としてポリビニルアルコール繊維は、高い
引張り強度（９０ｋｇｆ／ｍｒｒ？）及び弾性係数（３
０００ｋｇｆ／ｍｒｆ）を示し、耐衝撃性に極めて優れ
たものとなる。In particular, as an organic fiber, polyvinyl alcohol fiber has a high tensile strength (90 kgf/mrr?) and an elastic modulus (3
000 kgf/mrf) and has extremely excellent impact resistance.
さらに、ポリビニルアルコール繊維は、化学灼に親水性
でセメントペーストとのなじみが良く、更にその表面が
粗で且つ繊維糸が扁平であることから、コンクリートと
の付着面積が大きくなり、高い付着性が得られる。Furthermore, polyvinyl alcohol fibers are hydrophilic to chemical cauterization and have good compatibility with cement paste.Furthermore, their surface is rough and the fiber threads are flat, so the adhesion area to concrete is large, resulting in high adhesion. can get.
また、扁平な繊維断面により、強度を下げることなくア
スペクト比の小さな繊維とすることができるので、コン
クリートへの良好な分散性・施工性が得られる。Furthermore, the flat fiber cross section allows the fibers to have a small aspect ratio without reducing strength, resulting in good dispersibility and workability in concrete.
以上のように、本発明の透水性コンクリート組成物およ
びこれから得られる硬化体は、従来のものにはなかった
優れた特性を有する為に、車道のような重要構造物に対
しても適用が可能であり、次のような透水性舗装におけ
るより一層の改善をもたらすものである。As described above, the water-permeable concrete composition of the present invention and the cured product obtained from it have excellent properties not found in conventional products, so they can be applied to important structures such as roadways. This brings about further improvements in permeable pavement as follows.
（１）植生等の地中生態の改善
（２）下水道の負担軽減
（３）公共水域の汚濁軽減
（４）地下水洒養
（５）路面排水施設の軽減もしくは省略（６）すべり抵
抗の増大による歩行性の改善（７）乱反射による眩惑の
軽減
（８）交通騒音の低減
また、セメントとして、早強セメントもしくは超早強セ
メントを使用するか、或いはセメントと早強剤を併用す
れば、硬化が速まり工事期間を短縮化出来る。超速硬セ
メントを用いると初期強度の発現が早く、更に一層の工
事期間の短縮につながる。 更にまた、カラーセメント
あるいは着色材を使用すれば、カラー構造体とすること
は容易で、環境の美化にも役立つ。(1) Improving underground ecology such as vegetation (2) Reducing the burden on sewerage systems (3) Reducing pollution in public water bodies (4) Replenishing groundwater (5) Reducing or omitting road surface drainage facilities (6) Increased slip resistance Improving walkability (7) Reducing dazzling caused by diffused reflection (8) Reducing traffic noise In addition, using early-strengthening cement or ultra-early-strengthening cement as the cement, or using cement and an early-strengthening agent together will help improve hardening. This speeds up the construction period and shortens the construction period. The use of ultra-fast hardening cement allows the initial strength to develop quickly, further shortening the construction period. Furthermore, if colored cement or coloring materials are used, it is easy to create a colored structure, which is also useful for beautifying the environment.
この他、本発明の透水性コンクリート組成物は、透水性
平板、透水性雨水桝、透水性コンクリート管等の透水性
コンクリート二次製品にも適用出来る。In addition, the water-permeable concrete composition of the present invention can also be applied to water-permeable concrete secondary products such as water-permeable flat plates, water-permeable rainwater basins, and water-permeable concrete pipes.
実施例
実施例１
使用材料
１）セメント・・・普通ボルトランドセメント（大阪セ
メント■製）
２）水
３）有機繊維・・・ポリビニルアルコール繊維（■クラ
レ製モノフィラメントタイプ
ＲＦ１５０００２ 比重１，３）
４）骨材・・・ＦＩＴサンド ０号、１号の混合品（仲
中山製鋼所製 粗骨材の最大寸法
１０ｍｍ＋）
５）減水材・・・マイティ１５０（花王■製）上記の材
料を下記表に示す配合割合で強制練りミキサ（ＩＯＯＮ
練り用）を用い混練した。まず、セメント、骨材及び減
水剤を１５秒間混合し、その後水を加え３０秒間混練し
、更に有機繊維を加えて６０秒間混練し、透水性コンク
リート組成物を得た。Examples Example 1 Materials used 1) Cement: Ordinary Boltland cement (manufactured by Osaka Cement) 2) Water 3) Organic fibers: Polyvinyl alcohol fiber (monofilament type RF150002 manufactured by Kuraray, specific gravity 1,3) 4) Aggregate: Mixture of FIT Sand No. 0 and No. 1 (manufactured by Nakanakayama Steel Works, maximum coarse aggregate dimension 10 mm +) 5) Water-reducing material: Mighty 150 (manufactured by Kao ■) The above materials are shown in the table below. Forced kneading mixer (IOON
(for kneading) was used for kneading. First, cement, aggregate, and water reducing agent were mixed for 15 seconds, then water was added and kneaded for 30 seconds, and organic fibers were further added and kneaded for 60 seconds to obtain a water-permeable concrete composition.
（Ｗ／Ｃ ： ２８％）
この透水性コンクリート組成物を、空隙率が１０〜３５
％となるように締固めをし、舗設を行なった。(W/C: 28%) This water permeable concrete composition has a porosity of 10 to 35.
%, and paving was carried out.
舗設後の養生方法は、気中養生で、温度２０℃、湿度（
ＲＨ）９０％の条件で行い、材令は１材令１週間とした
。The curing method after paving is air curing at a temperature of 20℃ and humidity (
It was carried out under conditions of RH) 90%, and the wood age was 1 week for 1 wood age.
得られた透水性コンクリートを試料として、以下の性能
試験に供した。The obtained permeable concrete was used as a sample and subjected to the following performance tests.
［性能試験］
西げ強度・・・ＪＩＳ Ａ １１０６に準じて行な
った。その結果を第１図に示す。[Performance test] Curling strength: Conducted according to JIS A 1106. The results are shown in FIG.
たわみ量・・・社団法人 日本道路協会編 舗装試験方
法便覧４−１１−７ ｒ鋼繊維補強コンクリートの曲げ
強度および曲げタフ
ネス試験方法」に準じて行なった。Amount of deflection: Conducted in accordance with Pavement Test Method Handbook 4-11-7 "R Steel Fiber Reinforced Concrete Bending Strength and Bending Toughness Test Method" compiled by the Japan Road Association.
その結果を第２図に示す。The results are shown in FIG.
透水試験・・・ＪＩＳ Ａ １２１８に準じて行な
った。その結果を第３図に示す。Water permeability test: Conducted according to JIS A 1218. The results are shown in FIG.
以上の試験結果から、繊維の混入率が増加すると、曲げ
強度の向上は大きくないが、たわみ量が著しく増加して
いる。このことは、透水性コンクリートの曲げ靭性が改
善され、ひびわれの発生を抑止出来ることを意味してい
る。From the above test results, when the fiber content increases, the bending strength does not improve significantly, but the amount of deflection increases significantly. This means that the bending toughness of permeable concrete is improved and the occurrence of cracks can be suppressed.
また透水試験においては、繊維の混入率の増加に伴い、
透水係数がやや低下するが、要求される値（ Ｉ Ｘ
１０−２ｃｍ／ｓｅｅ）は充分に確保しており、実用上
問題はない。In addition, in the water permeability test, as the percentage of fibers increases,
Although the hydraulic conductivity decreases slightly, the required value (I
10-2 cm/see) is sufficiently secured, and there is no problem in practical use.
第１図は繊維添加率と藺げ強度の関係を示すグラフであ
る。
第２図は繊維添加率とたわみ量の関係を示すグラフであ
る。
第３図は繊維添加率と透水係数の関係を示すグラフであ
る。
（以 上）
第１図
第３図
Ｏ
０．５ １．０
紛ｔ添加牽
１．５（％）
狐■動Ω卆
（ｋｇ／ｃｍ）
第２図
０
Ｑ５ １．０
狐紐添加率
１．５ （％）FIG. 1 is a graph showing the relationship between fiber addition rate and crushing strength. FIG. 2 is a graph showing the relationship between the fiber addition rate and the amount of deflection. FIG. 3 is a graph showing the relationship between fiber addition rate and hydraulic conductivity. (Above) Figure 1 Figure 3 O 0.5 1.0 Addition rate of powder t 1.5 (%) Fox movement Ω (kg/cm) Figure 2 0 Q5 1.0 Addition rate of fox string 1 .5 (%)
Claims (3)
７５〜２４０ｋｇの水、０．１〜５．０体積％の有機繊
維及び残部が骨材からなる有機繊維補強透水性コンクリ
ート組成物。(1) 300-600 kg of cement per 1 m^3,
An organic fiber-reinforced water-permeable concrete composition comprising 75-240 kg of water, 0.1-5.0% by volume of organic fibers, and the balance consisting of aggregate.
率が８５％以上、２．５ｍｍフルイ通過重量百分率が５
０％以下、１．２ｍｍフルイ通過重量百分率が２５％以
下、０．６ｍｍフルイ通過重量百分率が１０％以下に調
整されていることを特徴とする請求項（１）に記載の組
成物。(2) The particle size distribution of the aggregate is such that the weight percentage passing through a 13 mm sieve is 85% or more, and the weight percentage passing through a 2.5 mm sieve is 5% or more.
The composition according to claim 1, wherein the composition is adjusted to have a weight percentage of 0% or less, a weight percentage passing through a 1.2 mm sieve being 25% or less, and a weight percentage passing a 0.6 mm sieve being 10% or less.
重量部の減水剤及び／又は１〜２０重量部のセメント添
加剤用ポリマーが添加されていことを特徴とする請求項
（１）に記載の組成物。(3) 0.05 to 5.0 per 100 parts by weight of cement
Composition according to claim 1, characterized in that parts by weight of a water reducing agent and/or 1 to 20 parts by weight of a cement additive polymer are added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1165068A JP2840676B2 (en) | 1989-06-26 | 1989-06-26 | Organic fiber reinforced permeable concrete composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1165068A JP2840676B2 (en) | 1989-06-26 | 1989-06-26 | Organic fiber reinforced permeable concrete composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0328152A true JPH0328152A (en) | 1991-02-06 |
| JP2840676B2 JP2840676B2 (en) | 1998-12-24 |
Family
ID=15805260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1165068A Expired - Fee Related JP2840676B2 (en) | 1989-06-26 | 1989-06-26 | Organic fiber reinforced permeable concrete composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2840676B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6652466B2 (en) | 2001-03-01 | 2003-11-25 | Nihon Kohden Corporation | Blood flow volume measurement method and vital sign monitoring apparatus |
| EP1489057A1 (en) * | 2003-06-20 | 2004-12-22 | Global Engineering and Trade S.r.L. | Concrete for paving |
| KR100507024B1 (en) * | 2002-05-15 | 2005-08-05 | 김성수 | Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same |
| JP2015058637A (en) * | 2013-09-19 | 2015-03-30 | 太平洋セメント株式会社 | Production method of super-quick hardening concrete and super-quick hardening concrete |
| CN114315294A (en) * | 2021-12-06 | 2022-04-12 | 北京建筑大学 | Low-strength tough waterproof concrete for underground engineering and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100532721C (en) * | 2005-01-06 | 2009-08-26 | 崔仙鎔 | High-performance water permeating and draining concrete pavement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215565A (en) * | 1984-04-06 | 1985-10-28 | 佐藤道路株式会社 | Manufacture of cement concrete product with high water permeability |
| JPS6395147A (en) * | 1986-10-09 | 1988-04-26 | 住友大阪セメント株式会社 | Composition for water-permeable high strength concrete pavement |
| JPH0183035U (en) * | 1987-11-18 | 1989-06-02 |
-
1989
- 1989-06-26 JP JP1165068A patent/JP2840676B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60215565A (en) * | 1984-04-06 | 1985-10-28 | 佐藤道路株式会社 | Manufacture of cement concrete product with high water permeability |
| JPS6395147A (en) * | 1986-10-09 | 1988-04-26 | 住友大阪セメント株式会社 | Composition for water-permeable high strength concrete pavement |
| JPH0183035U (en) * | 1987-11-18 | 1989-06-02 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6652466B2 (en) | 2001-03-01 | 2003-11-25 | Nihon Kohden Corporation | Blood flow volume measurement method and vital sign monitoring apparatus |
| KR100507024B1 (en) * | 2002-05-15 | 2005-08-05 | 김성수 | Permeable Concrete Composition reinforced with Fiber and Pavement Method using the same |
| EP1489057A1 (en) * | 2003-06-20 | 2004-12-22 | Global Engineering and Trade S.r.L. | Concrete for paving |
| AU2004202692B2 (en) * | 2003-06-20 | 2008-06-26 | Global Engineering And Trade S.R.L. | Concrete for Paving |
| JP2015058637A (en) * | 2013-09-19 | 2015-03-30 | 太平洋セメント株式会社 | Production method of super-quick hardening concrete and super-quick hardening concrete |
| CN114315294A (en) * | 2021-12-06 | 2022-04-12 | 北京建筑大学 | Low-strength tough waterproof concrete for underground engineering and preparation method thereof |
| CN114315294B (en) * | 2021-12-06 | 2022-10-21 | 北京建筑大学 | Low-strength tough waterproof concrete for underground engineering and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2840676B2 (en) | 1998-12-24 |
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