JPH0648805A - Water-permeable concrete - Google Patents
Water-permeable concreteInfo
- Publication number
- JPH0648805A JPH0648805A JP4219617A JP21961792A JPH0648805A JP H0648805 A JPH0648805 A JP H0648805A JP 4219617 A JP4219617 A JP 4219617A JP 21961792 A JP21961792 A JP 21961792A JP H0648805 A JPH0648805 A JP H0648805A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cement
- polymer
- weight
- ratio
- 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
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は透水コンクリートに関
し、特に、目地なしの透水コンクリート舗装を可能と
し、車道として使用できる透水コンクリートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-permeable concrete, and more particularly to a water-permeable concrete that allows jointless water-permeable concrete pavement and can be used as a roadway.
【０００２】[0002]
【従来の技術】セメントの１重量部に対して高々0.04重
量部の、ＳＢＲ、ＮＢＲのような天然もしくは合成のゴ
ム、アクリル系樹脂またはエポキシ系樹脂からなるバイ
ンダを添加した透水コンクリートが提案されている（特
開平2-157302号公報）。2. Description of the Related Art A water-permeable concrete containing 0.04 parts by weight per 1 part by weight of cement of a natural or synthetic rubber such as SBR or NBR, a binder made of an acrylic resin or an epoxy resin has been proposed. (Japanese Patent Laid-Open No. 2-157302).
【０００３】前記透水コンクリートは、ポリマーをセメ
ント重量部１に対して高々0.04重量部含むために、骨材
とセメントペーストの付着力が増加する結果、ポリマー
を添加しないものに比べて曲げ強度が大きい特性を持
つ。また、骨材の2.5mm 通過量を少なくしていることか
ら、転圧コンクリート舗装と同様にフィニッシャによる
敷き均しや転圧が可能である。Since the water-permeable concrete contains at most 0.04 parts by weight of the polymer with respect to 1 part by weight of the cement, the adhesive strength between the aggregate and the cement paste increases, and as a result, the bending strength is greater than that without the addition of the polymer. It has characteristics. In addition, since the amount of aggregate that passes through it by 2.5 mm is reduced, it is possible to spread and level by a finisher as in the case of compacted concrete pavement.
【０００４】[0004]
【発明が解決しようとする課題】反面、ポリマーの量が
少ないため、硬く、脆性であり、塑性変形が実質的に生
じない等の性状を呈する。そのため、目地なしで舗装す
ると、ひび割れが不規則に入り、そのひび割れから舗装
の破壊が急速に進むこととなる。On the other hand, since the amount of the polymer is small, the polymer is hard and brittle, and exhibits substantially no plastic deformation. Therefore, when paving without joints, cracks become irregular, and the pavement breaks down rapidly from the cracks.
【０００５】前記透水コンクリートを目地あり舗装する
場合、フィニッシャによる敷き均しのためには目地が邪
魔となり、また雨水がコンクリート中を通過する必要が
あることから、目地をタイバー等で補強することが困難
である。そこで、通常、カッターによって切込みを入れ
ることで目地とするが、これでは目地部の強度が十分に
確保できないため、一般の車道のような重交通の箇所に
使用することができない。When the water-permeable concrete is paved with joints, it is necessary to reinforce the joints with a tie bar or the like because the joints are an obstacle for the leveling by the finisher and rainwater needs to pass through the concrete. Have difficulty. Therefore, a joint is usually used to make a joint by making a notch, but this cannot secure sufficient strength at the joint, and therefore cannot be used in a heavy traffic location such as a general roadway.
【０００６】本発明の目的は、目地を設けることなく舗
装でき、一般の車道に使用できる透水コンクリートを提
供することにある。An object of the present invention is to provide a water-permeable concrete that can be paved without providing joints and can be used on general roadways.
【０００７】[0007]
【課題を解決するための手段】本発明は、石粉、砂、７
号砕石および６号砕石のうちのいくつかを組み合わせた
骨材または石粉、砂および砂利のうちのいくつかを組み
合わせた骨材と、セメントと、水と、ポリマーとを混合
して得られる透水コンクリートであって、該透水コンク
リートの空隙率が10〜35％であり、前記セメントと水と
ポリマーとからなるセメントペーストの重量と前記骨材
の重量との比が0.05〜0.35であり、さらに前記ポリマー
の重量と前記セメントの重量との比が0.05〜0.65であ
る。The present invention is made of stone powder, sand, and
Aggregate obtained by mixing some of No. 6 crushed stone and No. 6 crushed stone, aggregate obtained by combining some of sand and gravel, cement, water, and polymer obtained by mixing polymer The porosity of the water-permeable concrete is 10 to 35%, the ratio of the weight of the cement paste consisting of the cement, water and polymer and the weight of the aggregate is 0.05 to 0.35, and further the polymer And the weight of the cement is 0.05 to 0.65.
【０００８】前記ポリマーの重量と前記セメントの重量
との比が0.15〜0.50であることが一層好ましい。More preferably, the ratio of the weight of the polymer to the weight of the cement is 0.15 to 0.50.
【０００９】[0009]
【作用および効果】混合した後、硬化する前に所定の箇
所へ運び、目地板などを配置することなく、フィニッシ
ャによって敷き均し、転圧する。これにより、骨材どう
しが十分噛み合わされることから、荷重の伝達は骨材の
噛み合わせを中心に行われることとなる。[Operation and effect] After mixing, the mixture is conveyed to a predetermined place before being hardened, laid by a finisher and laid and rolled without arranging a joint board or the like. As a result, the aggregates are sufficiently meshed with each other, so that the load is transmitted mainly through the meshing of the aggregates.
【００１０】また、骨材どうしを結合するセメントとポ
リマーと水とのセメントペーストは、硬化してからも非
常に大きな弾塑性の性質を呈することから、コンクリー
トの硬化および乾燥の際に生ずる応力や温度応力を塑性
変形することによって緩和する。Further, since the cement paste of cement, which bonds the aggregates together, the polymer and water, exhibits a very large elasto-plastic property even after being hardened, stress and stress generated during hardening and drying of concrete and The temperature stress is relieved by plastic deformation.
【００１１】さらに、コンクリートに塑性の性質を与え
て半たわみ性としているため、下層のたわみに追従す
る。Further, since the concrete is given a plastic property to be semi-flexible, it follows the flexure of the lower layer.
【００１２】透水性があるため、降雨時に水が路面に滞
ることがなく、自動車の安全走行を確保し易い。また、
人は歩き易い。Since it has water permeability, water does not stay on the road surface during rainfall, and it is easy to ensure safe driving of the vehicle. Also,
People are easy to walk.
【００１３】アスファルト系の舗装であれば、交通によ
る圧密によって目詰まりが起こり、透水性が次第に減殺
されてしまうが、本発明によればコンクリート系の舗装
を得るため、このような事態は起こらない。また、わだ
ち掘れが生じない。In the case of an asphalt-based pavement, clogging occurs due to consolidation due to traffic, and the water permeability is gradually diminished. However, according to the present invention, such a situation does not occur because a concrete-based pavement is obtained. . Moreover, rutting does not occur.
【００１４】コンクリートの硬化および乾燥の際に生ず
る応力や温度応力を塑性変形によって緩和するため、目
地が不要である。これにより、経済性と施工性を改善で
き、工期を短縮できる。Since the stress and temperature stress generated during hardening and drying of concrete are alleviated by plastic deformation, joints are unnecessary. As a result, economic efficiency and workability can be improved, and the construction period can be shortened.
【００１５】コンクリートが弾塑性の性質を備え、下層
のたわみに追従できることから、たわみ性の大きいアス
ファルトコンクリート層上に薄層で用いることができ
る。Since concrete has an elasto-plastic property and can follow the flexure of the lower layer, it can be used in a thin layer on an asphalt concrete layer having great flexibility.
【００１６】[0016]
【実施例】透水コンクリートは骨材と、セメントと、水
と、ポリマーとを混合して得られ、これを敷き均すと、
図１に示すように、骨材１０がセメントとポリマーと水
とのセメントぺースト１２で覆われ、骨材１０間に空隙
１４が生ずる。骨材１０の粒度が異なることことから、
空隙１４の大きさも区々となり、これら空隙１４を通し
て透水が可能となる。[Examples] Water-permeable concrete is obtained by mixing aggregate, cement, water, and polymer.
As shown in FIG. 1, the aggregate 10 is covered with a cement paste 12 of cement, polymer and water, and a void 14 is formed between the aggregates 10. Since the particle size of the aggregate 10 is different,
The size of the voids 14 also becomes different, and water can pass through these voids 14.
【００１７】透水コンクリートを敷き均して得られる透
水層１６は、図２のａに示すように、その下側にアスフ
ァルトコンクリートからなる基層１８、さらにその下側
に路盤２０を配置して使用できる。この構造によれば、
透水層１６を通過した水は基層１８に達してその流れが
阻止され、横方向へ流れて側溝２２に導かれることとな
る。The water-permeable layer 16 obtained by laying water-permeable concrete can be used by arranging a base layer 18 made of asphalt concrete on the lower side and a roadbed 20 on the lower side as shown in FIG. 2a. . According to this structure,
The water that has passed through the water permeable layer 16 reaches the base layer 18, its flow is blocked, and the water flows laterally and is guided to the gutter 22.
【００１８】透水層１６はまた、図２のｂに示すよう
に、路盤２０の上側に直接載せて使用できる。この構造
によれば、透水層１６を通過した水は、そのまま路盤２
０に浸入し、地下水となる。The water permeable layer 16 can also be used by directly mounting it on the upper side of the roadbed 20 as shown in FIG. According to this structure, the water that has passed through the water permeable layer 16 remains as it is.
It enters 0 and becomes groundwater.
【００１９】骨材１０は、石粉、砂、７号砕石および６
号砕石のうちのいくつかを組み合わせたもの、または石
粉、砂および砂利のうちのいくつかを組み合わせたもの
であり、透水コンクリートの空隙率が10〜35％の範囲に
なるように配合割合を定める。たとえば、その配合割合
は、重量比で、６号砕石：７号砕石：砂＝75:20:5 であ
る。The aggregate 10 includes stone powder, sand, crushed stone No. 7 and 6
A combination of some of the crushed stones, or a combination of some of stone powder, sand and gravel, and the composition ratio is determined so that the porosity of the permeable concrete is in the range of 10 to 35%. . For example, the mixing ratio is, by weight, crushed stone No. 6: crushed stone No. 7: sand = 75: 20: 5.
【００２０】透水コンクリートの空隙率が10％未満であ
ると、透水性が悪くなり、本来の目的を達成しにくくな
る。逆に、空隙率が35％を越えると、タイヤによる粗骨
材の離脱や飛散に対する抵抗性が悪くなり、舗装の耐久
性が低下する。よって、舗装の透水性を確保しつつ耐久
性を維持するためには、透水コンクリートの空隙率が10
〜35％の範囲にあることが必要である。When the porosity of the water-permeable concrete is less than 10%, the water permeability becomes poor and it becomes difficult to achieve the original purpose. On the other hand, when the porosity exceeds 35%, the resistance to separation and scattering of the coarse aggregate by the tire deteriorates, and the durability of the pavement decreases. Therefore, in order to maintain the water permeability of the pavement while maintaining its durability, the porosity of the water permeable concrete should be 10%.
Must be in the range of ~ 35%.
【００２１】セメントと水とポリマーとからなるセメン
トペーストの重量と前記骨材の重量との比Cp/Gが0.05〜
0.35の範囲となるように、骨材に対するセメントと水と
ポリマーとの配合割合を定める。たとえば、その配合比
Cp/G=0.17 である。The ratio Cp / G of the weight of the cement paste composed of cement, water and polymer and the weight of the aggregate is 0.05 to
The mixing ratio of cement, water, and polymer to the aggregate is determined so that the range is 0.35. For example, its compounding ratio
Cp / G = 0.17.
【００２２】前記比Cp/Gが0.05未満であると、セメント
ペーストが骨材を覆いにくくなり、一定の品質のものを
得るのが難しい。逆に、前記比Cp/Gが0.35より大きくな
ると、セメントペーストと骨材が材料分離を起こし易く
なり、舗装した後、セメントペーストが舗装の下部に集
まって固まり、透水性を著しく低下させる。したがっ
て、舗装の品質を維持しつつ透水性を確保するには、前
記比Cp/Gが0.05〜0.35の範囲にあることが必要である。When the ratio Cp / G is less than 0.05, it becomes difficult for the cement paste to cover the aggregate and it is difficult to obtain a certain quality. On the other hand, when the ratio Cp / G is larger than 0.35, the cement paste and the aggregate are likely to cause material separation, and after paving, the cement paste collects and hardens at the lower part of the pavement, and water permeability is significantly reduced. Therefore, in order to ensure water permeability while maintaining the quality of pavement, the ratio Cp / G needs to be in the range of 0.05 to 0.35.
【００２３】前記ポリマーは、セメントモルタルの添加
用として使用されているものであり、たとえば、ＳＢ
Ｒ、ＮＢＲのような天然もしくは合成のゴム、アクリル
系樹脂、エポキシ系樹脂またはアスファルト乳剤系であ
る。ポリマーは、ポリマーの重量とセメントの重量との
比P/C が0.05〜0.65の範囲となるように配合割合を定め
る。たとえば、中央理化工業株式会社製のアクリルエマ
ルジョンET663 （固形分60％）を使用し、比P/C=0.4 と
した場合の配合割合は、重量比で、ET663:C:水=0.67:1:
0.2である。The above-mentioned polymer is used for addition of cement mortar, for example, SB
It is a natural or synthetic rubber such as R or NBR, an acrylic resin, an epoxy resin or an asphalt emulsion system. The blending ratio of the polymer is determined so that the ratio P / C of the weight of the polymer to the weight of the cement is in the range of 0.05 to 0.65. For example, when using acrylic emulsion ET663 (solid content 60%) manufactured by Chuo Rika Kogyo Co., Ltd. and the ratio P / C = 0.4, the mixing ratio is ET663: C: water = 0.67: 1:
0.2.
【００２４】アスファルトの透水舗装用の混合物の耐久
性を調べるカンタブロ試験を、セメントペーストと骨材
との重量比Cp/Gを0.15に保ち、セメント重量に対するポ
リマー重量の比P/C を変えて行い、損失減量を測定した
結果、図３に示す特性が得られた。図中、Ａは供試体を
水浸しない場合、Ｂは供試体を水浸した場合である。カ
ンタブロ試験で求めたカンタブロ損失減量が小さいほ
ど、自動車のタイヤによる粗骨材の離脱や飛散に対する
抵抗性が大きく、耐久性に優れる、とされている。A cantablo test for investigating the durability of a mixture for asphalt permeable pavement was carried out by keeping the weight ratio Cp / G of cement paste and aggregate at 0.15 and changing the ratio P / C of polymer weight to cement weight. As a result of measuring the loss reduction, the characteristics shown in FIG. 3 were obtained. In the figure, A is the case where the sample is not submerged, and B is the case where the sample is submerged. It is said that the smaller the cantablo loss reduction obtained by the cantablo test, the greater the resistance to separation and scattering of coarse aggregate by the tire of the automobile, and the better the durability.
【００２５】スペインの事例では、アスファルトを用い
た透水舗装用の混合物の損失減量を水浸しない場合に25
％以下、水浸した場合に35％以下と定めている。これを
図３に当てはめると、比P/C が10％以上であれば、前記
要求を満たすことが分る。これに対し、前記公報に記載
の技術（以下、先行技術という）Ｚでは、比P/C が高々
4 ％であるから、損失減量は水浸しない場合に32％、水
浸した場合に38％となり、いずれも要求値を満たさな
い。In the case of Spain, the loss weight loss of a mixture for asphalt permeable paving is 25
% Or less, and 35% or less when immersed in water. Applying this to FIG. 3, it can be seen that the above requirement is satisfied if the ratio P / C is 10% or more. On the other hand, in the technology (hereinafter referred to as prior art) Z described in the publication, the ratio P / C is at most
Since it is 4%, the loss reduction is 32% without water immersion and 38% with water immersion, neither of which meets the required value.
【００２６】セメントペーストと骨材との重量比Cp/Gを
0.15に保ち、セメント重量に対するポリマー重量の比P/
C を変えた供試体につき、曲げ強度と曲げ破断ひずみと
を測定した結果、それぞれ図４および図５の特性が得ら
れた。The weight ratio Cp / G of cement paste and aggregate is
Keep at 0.15, the ratio of polymer weight to cement weight P /
Bending strength and bending breaking strain of the specimens with different C were measured, and the characteristics shown in FIGS. 4 and 5 were obtained.
【００２７】本発明に係る透水コンクリートは、ポリマ
ーを適量含むことから、半たわみ性の舗装となる、と考
えられる。そこで、半たわみ性舗装についての首都高速
道路公団の規格値である曲げ強度が13kgf/cm2 以上、曲
げ破断ひずみが8 ×10-3以上の要求値を図４および図５
にそれぞれ当てはめると、比P/C が15〜50％であれば、
前記要求を満たすことが分る。The permeable concrete according to the present invention is considered to be a semi-flexible pavement since it contains an appropriate amount of polymer. Therefore, the required values of bending strength of 13 kgf / cm 2 or more and bending rupture strain of 8 × 10 -3 or more, which are the standard values of the Metropolitan Expressway Corporation for semi-flexible pavement, are shown in Figs. 4 and 5.
If the ratio P / C is 15 to 50%,
It turns out that the above requirements are met.
【００２８】したがって、セメントの重量に対するポリ
マーの重量の比P/C が15〜50％の範囲にあるとき、カン
タブロ損失減量、曲げ強度および曲げ破断ひずみについ
ての最も厳しい要求を満たすこととなり、最も好まし
い。Therefore, when the ratio P / C of the weight of the polymer to the weight of the cement is in the range of 15 to 50%, the strictest requirements for the cantablo loss reduction, the bending strength and the bending breaking strain are satisfied, and the most preferable. .
【００２９】しかし、次のように許容範囲を考えること
ができる。すなわち、カンタブロ損失減量については、
コンクリートはアスファルトのような感温性がないこと
から、カンタブロ損失減量の目標値を若干大きくしても
良いと考えられ、したがって水浸なしの場合30％、水浸
ありの場合40％としても支障がない。また、曲げ強度に
ついては、透水コンクリートを表層に使用した場合の多
層弾性論の計算結果例では、曲げ応力が3 〜6kgf/cm2し
か働かないことから、曲げ強度を6kgf/cm2以上とするこ
とが実際的である。また、曲げ破断ひずみについては、
乾燥収縮ひずみが4 ×10-4程度であると想定できるが、
これにP/C=0 のときの曲げ破断ひずみ3.9 ×10-3を加え
合せると、4.3 ×10-3になることから、曲げ破断ひずみ
を5 ×10-3以上とすることが実際的である。以上の数値
を図３ないし図５に当てはめると、P/C が5 〜65％であ
るとき、支障なく実施できることが分る。However, the allowable range can be considered as follows. In other words, for cantablo loss reduction,
Since concrete does not have the temperature sensitivity of asphalt, it may be possible to increase the target value for the loss of cantablo loss a little. Therefore, 30% without water and 40% with water will not be a problem. There is no. Regarding the bending strength, in the calculation result example of the multi-layered elastic theory when permeable concrete is used for the surface layer, the bending stress is only 3 to 6 kgf / cm 2 , so the bending strength should be 6 kgf / cm 2 or more. Is practical. Also, regarding bending rupture strain,
It can be assumed that the drying shrinkage strain is about 4 × 10 -4 ,
If the bending rupture strain of 3.9 × 10 -3 at P / C = 0 is added to this, it becomes 4.3 × 10 -3 , so it is practical to set the bending rupture strain to 5 × 10 -3 or more. is there. Applying the above values to Fig. 3 to Fig. 5, it can be seen that when the P / C is 5 to 65%, it can be carried out without trouble.
【００３０】供試体の中央に載せた荷重Ｐと、その荷重
によってたわむ供試体のたわみ量ｄとを、セメントペー
ストと骨材との重量比Cp/Gを0.15に保ち、比P/C の値を
変えて測定した結果、図６の特性が得られた。図中、
（ ）内の数字は比P/C の％表示である。The load P placed in the center of the test piece and the deflection amount d of the test piece which is deflected by the load are maintained at a weight ratio Cp / G of cement paste and aggregate of 0.15, and the ratio P / C is calculated. As a result of measurement with different values, the characteristics shown in FIG. 6 were obtained. In the figure,
The figures in parentheses are the percentages of the ratio P / C.
【００３１】図６から、比P/C の値が大きくなるほど、
載荷重Ｐがピーク値となった後、曲げ破断するまでに大
きくたわむことが分る。これは、供試体のじん性を示す
もので、じん性および塑性を高めるには、比P/C を大き
くすればよい。換言すると、比P/C がゼロまたは先行技
術のように少ないものでは、じん性および塑性がほとん
どなく、破断ひずみも小さくなってしまい、目地を設け
ないと、乾燥収縮や温度応力によってひび割れを生じ
る。From FIG. 6, as the value of the ratio P / C increases,
It can be seen that after the applied load P reaches the peak value, it is largely deflected before bending and breaking. This indicates the toughness of the specimen, and in order to improve the toughness and plasticity, the ratio P / C should be increased. In other words, if the ratio P / C is zero or as low as in the prior art, there is little toughness and plasticity, and the breaking strain is also small.If joints are not provided, drying shrinkage and temperature stress cause cracking. .
【００３２】また図６から、破断するまでのたわみ量
は、P/C=0 に対してP/C=23では約３倍、P/C=40では約４
倍、さらにP/C=60では約５倍多くなっており、それだけ
下層のたわみへの追従性が高いことが分る。さらに、図
６の直線部分は弾性変形している範囲、その他の曲線部
分は弾塑性変形または塑性変形している範囲と判断でき
ることから、P/C=0 ではほぼ完全な弾性体であり、本発
明透水コンクリートは弾塑性体であることが分る。Further, from FIG. 6, the amount of deflection until breakage is about 3 times as much as P / C = 0 for P / C = 23 and about 4 for P / C = 40.
Double, and about 5 times more at P / C = 60, it can be seen that the ability to follow the deflection of the lower layer is higher. Furthermore, since it can be judged that the straight line part in Fig. 6 is the elastically deformed range and the other curved parts are the elasto-plastic deformation or the plastically deformed range, at P / C = 0 it is almost a perfect elastic body. Inventive permeable concrete is found to be an elastoplastic body.
【図１】本発明に係る透水コンクリートの舗装状態を示
すもので、ａは断面図、ｂは一部の拡大図である。FIG. 1 shows a paved state of water-permeable concrete according to the present invention, in which a is a cross-sectional view and b is a partially enlarged view.
【図２】本発明に係る透水コンクリートを実際の道路に
適用する場合の模式図で、ａは排水性の道路として、ｂ
は透水性の道路として使用する状態を示す。FIG. 2 is a schematic diagram when the permeable concrete according to the present invention is applied to an actual road, where a is a drainage road and b
Indicates a state of being used as a permeable road.
【図３】カンタブロ試験の結果を示す特性図である。FIG. 3 is a characteristic diagram showing the results of a cantablo test.
【図４】曲げ強度を示す特性図である。FIG. 4 is a characteristic diagram showing bending strength.
【図５】曲げ破断ひずみを示す特性図である。FIG. 5 is a characteristic diagram showing bending fracture strain.
【図６】載荷重とたわみ量との関係を示す特性図であ
る。FIG. 6 is a characteristic diagram showing the relationship between the applied load and the amount of deflection.
１０ 骨材 １２ セメントとポリマーのペースト １４ 空隙 １６ 透水層 10 Aggregate 12 Cement and polymer paste 14 Void 16 Water permeable layer
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 20:00 Ｂ 2102−4Ｇ 24:24） Ｚ 2102−4Ｇ Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location C04B 20:00 B 2102-4G 24:24) Z 2102-4G
Claims (2)
ちのいくつかを組み合わせた骨材または石粉、砂および
砂利のうちのいくつかを組み合わせた骨材と、セメント
と、水と、ポリマーとを混合して得られる透水コンクリ
ートであって、該透水コンクリートの空隙率が10〜35％
であり、前記セメントと水とポリマーとからなるセメン
トペーストの重量と前記骨材の重量との比が0.05〜0.35
であり、さらに前記ポリマーの重量と前記セメントの重
量との比が0.05〜0.65である、透水コンクリート。1. An aggregate containing a combination of some of stone powder, sand, crushed stone No. 7 and a crushed stone of No. 6, or an aggregate containing some of stone powder, sand and gravel, cement, and water, A permeable concrete obtained by mixing with a polymer, wherein the permeable concrete has a porosity of 10 to 35%.
The ratio of the weight of the cement paste consisting of the cement, water and the polymer and the weight of the aggregate is 0.05 to 0.35.
And the ratio of the weight of the polymer to the weight of the cement is 0.05 to 0.65.
量との比が0.15〜0.50である、請求項１に記載の透水コ
ンクリート。2. The permeable concrete according to claim 1, wherein the ratio of the weight of the polymer to the weight of the cement is 0.15 to 0.50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4219617A JP2945543B2 (en) | 1992-07-28 | 1992-07-28 | Permeable concrete and pavement method of permeable concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4219617A JP2945543B2 (en) | 1992-07-28 | 1992-07-28 | Permeable concrete and pavement method of permeable concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0648805A true JPH0648805A (en) | 1994-02-22 |
| JP2945543B2 JP2945543B2 (en) | 1999-09-06 |
Family
ID=16738341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4219617A Expired - Fee Related JP2945543B2 (en) | 1992-07-28 | 1992-07-28 | Permeable concrete and pavement method of permeable concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2945543B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260453A (en) * | 1995-03-23 | 1996-10-08 | Giken Seisakusho Co Ltd | Structure for placing of concrete and constructing method of wall-shaped structure |
| KR100259543B1 (en) * | 1997-02-21 | 2000-06-15 | 홍영근 | Elastic permeable concrete and its manufacturing method |
| JP2002180409A (en) * | 2000-12-13 | 2002-06-26 | Taisei Rotec Corp | Water permeable block pavement and execution method of water permeable block pavement |
| JP2015178748A (en) * | 2014-03-19 | 2015-10-08 | 国立研究開発法人日本原子力研究開発機構 | Inspection method of recycled asphalt |
| JP2020200740A (en) * | 2019-06-13 | 2020-12-17 | 大林道路株式会社 | Pavement structure and construction method of permeable concrete pavement |
-
1992
- 1992-07-28 JP JP4219617A patent/JP2945543B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260453A (en) * | 1995-03-23 | 1996-10-08 | Giken Seisakusho Co Ltd | Structure for placing of concrete and constructing method of wall-shaped structure |
| KR100259543B1 (en) * | 1997-02-21 | 2000-06-15 | 홍영근 | Elastic permeable concrete and its manufacturing method |
| JP2002180409A (en) * | 2000-12-13 | 2002-06-26 | Taisei Rotec Corp | Water permeable block pavement and execution method of water permeable block pavement |
| JP2015178748A (en) * | 2014-03-19 | 2015-10-08 | 国立研究開発法人日本原子力研究開発機構 | Inspection method of recycled asphalt |
| JP2020200740A (en) * | 2019-06-13 | 2020-12-17 | 大林道路株式会社 | Pavement structure and construction method of permeable concrete pavement |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2945543B2 (en) | 1999-09-06 |
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