JP2000355903A - Pavement - Google Patents

Pavement

Info

Publication number
JP2000355903A
JP2000355903A JP11171003A JP17100399A JP2000355903A JP 2000355903 A JP2000355903 A JP 2000355903A JP 11171003 A JP11171003 A JP 11171003A JP 17100399 A JP17100399 A JP 17100399A JP 2000355903 A JP2000355903 A JP 2000355903A
Authority
JP
Japan
Prior art keywords
vermiculite
pavement
water
synthetic resin
sand
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.)
Withdrawn
Application number
JP11171003A
Other languages
Japanese (ja)
Inventor
Shunji Kakihara
原 駿 司 柿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsukasa Industry Co Ltd
Original Assignee
Tsukasa Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tsukasa Industry Co Ltd filed Critical Tsukasa Industry Co Ltd
Priority to JP11171003A priority Critical patent/JP2000355903A/en
Publication of JP2000355903A publication Critical patent/JP2000355903A/en
Withdrawn legal-status Critical Current

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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • 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
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • 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
    • C04B2111/52—Sound-insulating materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve water permeability of road surface, prevent cracking, and reduce noise of vehicles, by using pavement in which a synthetic resin as a binder is added in vermiculite powder which is obtained by grinding vermiculite and burning it at a high temperature. SOLUTION: A base course 2 is compacted by rolling to remove irregularities, and pavements 1 are laid thereon. Vermiculite is ground into 1.5-3.5 mm in the granular size and burned at 300-1100 deg.C to form vermiculite powder having a bellows-shaped air layer. Water of 5-20 wt.% is added to 100 wt.% of the powdered vermiculite and kneaded to adjust the granular hardness. Then, 10-40 wt.% of lime, silica sand, sand, etc., as a stabilizer and 50-20 wt.% of foamed urethane as a binder are added therein and kneaded to flow out on the base course 2 to pave it. Then, it is compacted by rolling. After it has beed hardened, a top coat is applied to finish the pavement. In this way, a road face endurable against rainwater and snow can be obtained by water permeability, water- retaining property, and water-absorbing and desorbing property of the vermiculite powder and flexibility of the synthetic resin. It can prevent cracking and reduce noise in travel of vehicles.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、道路、遊歩道、
公園路及び広場等の路盤に敷設する舗装材に関する。The present invention relates to a road, a promenade,
It relates to pavement materials laid on roadbeds such as park roads and open spaces.

【０００２】[0002]

【従来の技術】従来、道路、遊歩道、公園路、サイクリ
ング道路及び広場等の舗装としては、カラー舗装、アス
ファルト舗装、コンクリート舗装、タイル舗装、レンガ
舗装．．．．．など各種の舗装が採用されている。特
に、最近では生活環境を充実する目的でカラフルな舗装
が好まれるようになり、カラー舗装が多く施工されてい
る。例えば、硅砂と、合成樹脂エマルジョンと、着色顔
料とを主成分とする舗装材を舗装面に均一にならして敷
設するカラー舗装がある。2. Description of the Related Art Conventionally, pavements such as roads, promenades, park roads, cycling roads and plazas include color pavement, asphalt pavement, concrete pavement, tile pavement, and brick pavement. . . . . Various pavements have been adopted. In particular, in recent years, colorful pavements have been favored for the purpose of enhancing the living environment, and many color pavements have been constructed. For example, there is a color pavement in which a pavement material containing silica sand, a synthetic resin emulsion, and a coloring pigment as main components is evenly laid on a pavement surface.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、従来の
舗装ではいずれも雨や雪に弱く、クラック（ひび割れ）
を生じることが多かった。例えば、前記硅砂と、合成樹
脂エマルジョンと、着色顔料とを主成分とする舗装材を
使用した舗装においても、樹脂エマルジョンと骨材（硅
砂）との接着が悪く、雨や雪に弱いばかりでなく、クラ
ック（ひび割れ）を生ずることが多かった。However, conventional pavements are all susceptible to rain and snow and cracks (cracks).
Often occurred. For example, even in a pavement using a pavement material containing silica sand, a synthetic resin emulsion, and a coloring pigment as main components, the adhesion between the resin emulsion and the aggregate (silica sand) is poor, and it is not only weak to rain and snow but also to pavement. , Cracks often occurred.

【０００４】叉、従来の舗装材は、透水性が悪く寒冷地
においては路面凍結につながる不都合、および耐寒性が
必ずしも高くなく、道路の寿命が短い不都合、さらに自
動車などの走行時にタイヤと路面との間で発生する騒音
を吸音して騒音防止を図る点においても効果が小さい課
題がある。[0004] Conventional pavement materials have poor water permeability and lead to freezing of the road surface in cold regions, and are not necessarily high in cold resistance, resulting in a short life span of the road. There is also a problem that the effect is small in terms of absorbing noise generated between the two to prevent noise.

【０００５】この発明は、このような課題を解決するも
のであり、その目的は、雨や雪に強く、クラック（ひび
割れ）の発生もなく、透水性、耐寒性が高く、騒音防止
効果も得られる舗装材の提供にある。SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and has as its object the purpose of being resistant to rain and snow, having no cracks, having high water permeability and high cold resistance, and having a noise prevention effect. The provision of paving materials.

【０００６】[0006]

【課題を解決するための手段】前記課題を解決するた
め、この発明の請求項１にかかる舗装材は、粉砕され高
温焼成された蛭石粉体と、石灰、硅砂及び砂のうちから
選択される１種以上と、合成樹脂を主成分とし、これが
混練されて路盤上に敷設されることを特徴とする。According to a first aspect of the present invention, there is provided a pavement material selected from vermiculite powder crushed and fired at a high temperature, lime, silica sand and sand. One or more types and a synthetic resin as main components are kneaded and laid on a roadbed.

【０００７】また、この発明の請求項２にかかる舗装材
は、粉砕され高温焼成された蛭石粉体１００重量％に対
し水５〜２０重量％、石灰、硅砂、及び砂のうちから選
択される１種以上を１０〜４０重量％、合成樹脂５〜２
０重量％が配合された混練物からなり、路盤上に敷設さ
れることを特徴とする。The pavement material according to claim 2 of the present invention is selected from water of 5 to 20% by weight, lime, silica sand, and sand with respect to 100% by weight of crushed and high-temperature fired vermiculite powder. 10 to 40% by weight of at least one of
It is made of a kneaded material containing 0% by weight and is laid on a roadbed.

【０００８】また、この発明の請求項３にかかる舗装材
は、前記合成樹脂が、発泡ウレタン樹脂であることを特
徴とする。The pavement material according to claim 3 of the present invention is characterized in that the synthetic resin is a urethane foam resin.

【０００９】さらに、この発明の請求項４にかかる舗装
材は、前記硅砂が、硅砂３合及び４号であることを特徴
とする。Further, a pavement material according to claim 4 of the present invention is characterized in that the silica sand is silica sand No. 3 and No. 4.

【００１０】[0010]

【発明の実施の形態】以下、この発明の実施の形態を図
面と共に詳細に説明する。図１はこの発明の実施の形態
による道路の構造を示す断面図であり、十分に転圧され
た路盤２上に、この発明にかかる舗装材１が敷設されて
いる。この舗装材１は、レーキを使って均等厚となるよ
うに路盤２上にならして敷設される。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing the structure of a road according to an embodiment of the present invention. A pavement material 1 according to the present invention is laid on a sufficiently compacted roadbed 2. The pavement material 1 is laid on the roadbed 2 using a rake so as to have a uniform thickness.

【００１１】図２はこの発明の実施の形態による他の道
路の構造を示す断面図であり、十分に転圧された路面２
上にプライマー３が散布され、そのプライマー３の上に
この発明にかかる舗装材１が敷設されたものである。な
お、符号４は、舗装部分を区画する縁石である。FIG. 2 is a sectional view showing the structure of another road according to an embodiment of the present invention.
The primer 3 is sprayed thereon, and the paving material 1 according to the present invention is laid on the primer 3. Note that reference numeral 4 denotes a curb that partitions the pavement portion.

【００１２】前記舗装材１は、粉砕され高温焼成された
蛭石粉体と、石灰、硅砂及び砂のうちから選択される１
種以上と、合成樹脂とを主成分とし、これを混練して使
用する。蛭石は多量の水を含み、加熱すると水分が放散
して膨張し、その粒子はアコーディオン状（ジャバラ
状）であり空隙層があるため、保水力及び透水性に優れ
ると共に水で呼吸する状態となる。従って、混練する際
には、適量の水を添加するのが好ましい。[0012] The pavement material 1 is a vermiculite powder pulverized and fired at a high temperature, and lime, silica sand and sand.
More than one kind and a synthetic resin are used as main components, and these are kneaded and used. Vermiculite contains a large amount of water, and when heated, water is released and expands. The particles are accordion-like (bellows-like) and have a void layer. Become. Therefore, when kneading, it is preferable to add an appropriate amount of water.

【００１３】前記高温焼成する温度としては３００℃〜
１１００℃を例示でき、また、蛭石を粉砕する粒度とし
ては特に限定されないが、粒径１．５〜３．５ｍｍぐら
いが好ましい範囲として例示できる。The high-temperature firing temperature is 300 ° C.
1100 ° C. can be exemplified, and the particle size for pulverizing vermiculite is not particularly limited, but a preferred range is approximately 1.5 to 3.5 mm in particle size.

【００１４】次に配合例を示すと、粉砕され高温焼成さ
れた蛭石粉体１００重量％に対し水５〜２０重量％、石
灰、硅砂及び砂のうちから選択される１種以上を１０〜
４０重量％、合成樹脂５〜２０重量％の配合が好まし
い。水は粉砕され高温焼成された蛭石粉体に呼吸性を与
えるためと、混練したときの固さを決定させるものであ
るから、５重量％未満では混練状態が固すぎるし、２１
重量％以上では軟弱すぎる。従って、粉砕され高温焼成
された蛭石粉体に呼吸性を与え、好ましい混練状態とす
るためには５〜２０重量％の範囲が望ましい。[0014] Next, an example of the formulation is as follows: 5 to 20% by weight of water, 10% or more selected from lime, silica sand and sand with respect to 100% by weight of vermiculite powder pulverized and baked at a high temperature.
It is preferable to mix 40% by weight and 5 to 20% by weight of the synthetic resin. Water is used to give respirability to the crushed and high-temperature calcined vermiculite powder and to determine the hardness when kneaded. Therefore, if it is less than 5% by weight, the kneaded state is too hard.
If it is more than weight%, it is too soft. Therefore, the range of 5 to 20% by weight is desirable for imparting respirability to the pulverized and high-temperature calcined vermiculite powder to obtain a preferable kneading state.

【００１５】また、石灰、硅砂及び砂のうちから選択さ
れる１種以上の配合は、安定材として入れるものである
から、多すぎると粉砕され高温焼成された蛭石粉体の特
徴が生かされず、少なすぎると安定材としての効果が生
じない。従って、粉砕され高温焼成された蛭石粉体の特
徴を生かし、安定材としての効果を維持するためには１
０〜４０重量％の範囲が好ましい。前記硅砂としては、
硅砂３号及び４号を好ましいものとして例示できる。[0015] Further, since one or more kinds of compounds selected from lime, silica sand and sand are used as stabilizers, the characteristics of vermiculite powder pulverized and fired at a high temperature if too much are not utilized. When the amount is too small, the effect as a stabilizer does not occur. Therefore, in order to take advantage of the characteristics of vermiculite powder that has been pulverized and fired at a high temperature, and to maintain the effect as a stabilizer, it is necessary to use 1
A range of 0 to 40% by weight is preferred. As the silica sand,
Silica sand No. 3 and No. 4 can be exemplified as preferable ones.

【００１６】さらに、合成樹脂は、舗装材に柔軟性を与
えるためと、バインダーの役目を与えるものであるか
ら、多いと軟らかすぎて道路とし不適となるし、少ない
と効果を発揮しない。５〜２０重量％の範囲が好まし
い。合成樹脂として発泡ウレタン樹脂、例えばアクリル
系ポリマーウレタン樹脂を挙げることができる。Furthermore, since the synthetic resin serves to provide flexibility to the pavement material and also serves as a binder, if it is too much, it is too soft and unsuitable for roads, and if it is too little, it has no effect. A range of 5 to 20% by weight is preferred. Examples of the synthetic resin include a urethane foam resin, for example, an acrylic polymer urethane resin.

【００１７】次に施工例を説明する。蛭石を１．５〜
３．５ｍｍサイズに粉砕した後、高温焼成する。この蛭
石粉体１００重量％に対し水１０重量％を入れて混合す
る。次に、これに石灰、硅砂３号、４号、粗砂の４種の
内１種以上を２０〜３０重量％入れ、モルタルミキサー
又は混合ミキサーで１分間混練し、その後これに発泡ウ
レタン樹脂を１１〜１３重量％入れて２〜３分間混練す
る。次に、ミキサー取出口より不陸整正転圧のでき上が
った路盤上へ流出させて敷均し、ローラ転圧を行う。こ
の敷均し転圧が終了し、完全に硬化したら表面にトップ
コートを行なって施工が終了する。このトップコート材
としては発泡ウレタン樹脂と酢酸エチルを４：６又は
３：７の割合で混合したものを例示でき、このトップコ
ート材を毛塗料ローラで平方メートル当たり０．４〜
０．５リットル塗布する。Next, a construction example will be described. Vermiculite 1.5 ~
After pulverized to a size of 3.5 mm, it is fired at a high temperature. 10% by weight of water is added to 100% by weight of this vermiculite powder and mixed. Next, lime, silica sand No. 3, No. 4 and one or more of the four types of coarse sand are added in an amount of 20 to 30% by weight and kneaded with a mortar mixer or a mixing mixer for 1 minute, and then the urethane foam resin is added thereto. Add 11 to 13% by weight and knead for 2 to 3 minutes. Next, the fluid is discharged from the mixer outlet onto the roadbed on which the irregular rolling pressure has been completed, leveled, and roller rolling is performed. When the flattening and rolling are completed and completely cured, a top coat is applied to the surface to complete the construction. Examples of the top coat material include a mixture of urethane foam resin and ethyl acetate in a ratio of 4: 6 or 3: 7.
Apply 0.5 liter.

【００１８】[0018]

【発明の効果】以上詳細に説明した通り、本発明は、粉
砕され高温焼成された蛭石粉体と、石灰、硅砂及び砂の
内から選択される１種以上と、合成樹脂とを主成分と
し、これが混練されて路盤上に敷設されるものであるか
ら次のような効果を奏する。As described above in detail, the present invention comprises, as main components, vermiculite powder which has been pulverized and fired at high temperature, at least one selected from lime, silica sand and sand, and a synthetic resin. Since this is kneaded and laid on the roadbed, the following effects are obtained.

【００１９】（１） 粉砕され高温焼成された蛭石粉体
は、保水力、透水性に優れ、粒子に呼吸性があり、合成
樹脂での柔軟性もあるため、雨や雪に強く、クラック
（ひび割れ）も発生しない。(1) The vermiculite powder that has been ground and fired at a high temperature is excellent in water retention and water permeability, has breathability in particles, and is flexible with synthetic resin, so it is resistant to rain and snow and cracks. (Cracking) does not occur.

【００２０】（２） 粉砕され高温焼成された蛭石粉体
は、透水性が高く、粒子がアコーディオン状（ジャバラ
状）で空隙層が大きく、粒子に呼吸性があるため寒冷地
においても路面凍結がなく耐寒性も高い。(2) The vermiculite powder that has been pulverized and fired at a high temperature has high water permeability, accordion-like (bellows-like) particles, a large void layer, and freezing of the road surface even in cold regions because the particles are respirable. No cold resistance.

【００２１】（３） 粉砕され高温焼成された蛭石粉体
は、前記のように空隙層が大きく吸音性に優れているた
め、自動車走行時における騒音防止を図ることができ
る。また、路面が滑ることもなく安全である。(3) The vermiculite powder that has been pulverized and fired at a high temperature has a large void layer and is excellent in sound absorption as described above, so that noise can be prevented when the automobile is running. In addition, it is safe without slipping on the road surface.

【００２２】（４） 透水性がよいため路面の水はけが
良く、かつ地下水への影響も少ない。 （５） 合成樹脂のため柔軟性があり歩行しやすく、歩
行しても疲れが少ない。(4) Since the water permeability is good, the drainage of the road surface is good, and the influence on the groundwater is small. (5) Because it is a synthetic resin, it is flexible and easy to walk, and has little fatigue when walking.

【００２３】（６） 安定材として石灰、硅砂及び粗砂
のうちから選択される１種以上が配合されるため、粉砕
され高温焼成された蛭石粉体と合成樹脂との相乗効果と
相俟って道路の寿命を長く維持することができる。(6) Since at least one selected from lime, silica sand and coarse sand is blended as a stabilizer, the synergistic effect of the pulverized and high-temperature fired vermiculite powder and the synthetic resin is combined. As a result, the life of the road can be maintained long.

【図面の簡単な説明】[Brief description of the drawings]

【図１】この発明の実施の形態による道路の構造を示す
断面図である。FIG. 1 is a sectional view showing a road structure according to an embodiment of the present invention.

【図２】この発明の実施の形態による他の道路の構造を
示す断面図である。FIG. 2 is a sectional view showing another road structure according to the embodiment of the present invention;

【符号の説明】[Explanation of symbols]

１ この発明にかかる舗装材 ２ 路盤 ３ プライマー ４ 緑石 DESCRIPTION OF SYMBOLS 1 Pavement material concerning this invention 2 Subbase 3 Primer 4 Green stone

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 粉砕され高温焼成された蛭石粉体と、石
灰、硅砂及び砂のうちから選択される１種以上と、合成
樹脂とを主成分とし、これが混練されて路盤上に敷設さ
れることを特徴とする舗装材。Claims: 1. A vermiculite powder which has been crushed and fired at a high temperature, at least one selected from lime, silica sand and sand, and a synthetic resin as main components, which are kneaded and laid on a roadbed. Pavement material characterized by that. 【請求項２】 粉砕され高温焼成された蛭石粉体１００
重量％に対し水５〜２０重量％、石灰、硅砂及び砂のう
ちから選択される１種以上を１０〜４０重量％、合成樹
脂５〜２０重量％が配合された混練物からなり、路盤上
に敷設されることを特徴とする舗装材。2. A vermiculite powder 100 ground and fired at a high temperature.
5 to 20% by weight of water, a mixture of 10 to 40% by weight of at least one selected from lime, silica sand and sand, and 5 to 20% by weight of synthetic resin. Pavement material characterized by being laid in. 【請求項３】 前記合成樹脂は、発泡ウレタン樹脂であ
ることを特徴とする請求項１又は２記載の舗装材。3. The pavement material according to claim 1, wherein the synthetic resin is a urethane foam resin. 【請求項４】 前記硅砂は、硅砂３号及び４号であるこ
とを特徴とする請求項１または２記載の舗装材。4. The pavement material according to claim 1, wherein said silica sand is silica sand No. 3 and No. 4.
JP11171003A 1999-06-17 1999-06-17 Pavement Withdrawn JP2000355903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11171003A JP2000355903A (en) 1999-06-17 1999-06-17 Pavement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11171003A JP2000355903A (en) 1999-06-17 1999-06-17 Pavement

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004169449A (en) * 2002-11-21 2004-06-17 Toa Doro Kogyo Co Ltd Paving body and formation method for the same
JP2007023581A (en) * 2005-07-15 2007-02-01 Odakyu Dentetsu Kk Sound absorbing material and sound absorption method for track
WO2010037853A1 (en) * 2008-10-02 2010-04-08 Eurovia Bituminous coating with great acoustic performance

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004169449A (en) * 2002-11-21 2004-06-17 Toa Doro Kogyo Co Ltd Paving body and formation method for the same
JP2007023581A (en) * 2005-07-15 2007-02-01 Odakyu Dentetsu Kk Sound absorbing material and sound absorption method for track
JP4724804B2 (en) * 2005-07-15 2011-07-13 小田急電鉄株式会社 Track sound absorbing material and track sound absorbing construction method
WO2010037853A1 (en) * 2008-10-02 2010-04-08 Eurovia Bituminous coating with great acoustic performance
FR2936820A1 (en) * 2008-10-02 2010-04-09 Eurovia BITUMINOUS ENROBE WITH HIGH ACOUSTIC PERFORMANCE
US8702856B2 (en) 2008-10-02 2014-04-22 Eurovia Bituminous coating with great acoustic performance

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