JP2007211462A - Elastic paving material - Google Patents
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- JP2007211462A JP2007211462A JP2006031397A JP2006031397A JP2007211462A JP 2007211462 A JP2007211462 A JP 2007211462A JP 2006031397 A JP2006031397 A JP 2006031397A JP 2006031397 A JP2006031397 A JP 2006031397A JP 2007211462 A JP2007211462 A JP 2007211462A
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- 239000000463 material Substances 0.000 title claims abstract description 41
- 229920001971 elastomer Polymers 0.000 claims abstract description 32
- 239000005060 rubber Substances 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 14
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 7
- YQGOWXYZDLJBFL-UHFFFAOYSA-N dimethoxysilane Chemical group CO[SiH2]OC YQGOWXYZDLJBFL-UHFFFAOYSA-N 0.000 claims description 5
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 4
- 238000005187 foaming Methods 0.000 abstract description 9
- -1 alkoxy silane Chemical compound 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910000077 silane Inorganic materials 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- HGQSXVKHVMGQRG-UHFFFAOYSA-N dioctyltin Chemical compound CCCCCCCC[Sn]CCCCCCCC HGQSXVKHVMGQRG-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
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- Polyethers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
本発明は弾性舗装材料に関し、詳しくは、表面性および耐候性に優れた舗装が得られる弾性舗装材料に関する。 The present invention relates to an elastic pavement material, and more particularly to an elastic pavement material from which a pavement excellent in surface properties and weather resistance can be obtained.
従来、加硫ゴムを粉末またはチップ状にして利用する方法として、ウレタンやエポキシ等の硬化性樹脂をバインダーとして使用した低騒音弾性舗装が知られている。また、ゴムチップをバインダーと混合してプレス成形した弾性舗装体が、歩道や運動場、車道等で使用されている。 Conventionally, a low noise elastic pavement using a curable resin such as urethane or epoxy as a binder is known as a method of using vulcanized rubber in the form of powder or chips. In addition, an elastic pavement in which rubber chips are mixed with a binder and press-molded is used on sidewalks, playgrounds, roadways, and the like.
これらゴムチップを用いた弾性舗装は、ゴムチップの有する弾力性により歩行時の衝撃吸収性や転倒時の安全性といった優れた効果を奏するとともに、内部に空隙を有することから、排水性および通気性に加えて吸音性にも優れ、そのためタイヤと路面内で発生する騒音の低減にも有効であるため、都市部での交通騒音低減のための機能性弾性舗装材としても注目されている。 These elastic pavements using rubber chips have excellent effects such as shock absorption during walking and safety during falls due to the elasticity of the rubber chips, and since there are voids inside, in addition to drainage and breathability Therefore, it is also attracting attention as a functional elastic pavement material for reducing traffic noise in urban areas because it is effective in reducing noise generated on tires and road surfaces.
かかる弾性舗装材料に関しては、例えば、特許文献１に、マテリアルリサイクル推進を目的とする技術として、熱硬化性樹脂成形物の破砕物とゴムチップとを所定の混合比率で混合し、ウレタン樹脂をバインダーとしてブロック状または板状に成形してなる舗装材が提案されている。また、特許文献２には、ゴム、プラスチック等の軽量の廃棄物を適宜サイズに粉砕したものを骨材とし、この骨材とウレタン樹脂等のバインダーを混合してなる組成物を硬化して作製した舗装ブロックが開示されている。
Regarding such an elastic pavement material, for example, in
さらに、特許文献３には、予め骨材と芳香族アミン化合物とを混合し、次いでこの混合物とウレタンプレポリマーを混合して成形し、硬化させてなるものとすることで、適切な可使時間がとれる一方で短時間で充分な強度が得られ、かつ、発泡によるふくれが殆どなく、最終的に強度の高い弾性舗装材を得る技術が開示されている。
しかしながら、ウレタン樹脂をバインダーとして用いた弾性舗装においては、夏場の高温時に反応が激しく起こり、発泡が生ずることにより、舗装表面に凹凸が発生するという問題点があった。また、かかる従来のウレタン系弾性舗装は耐候性の点でも不十分であり、改良が求められていた。 However, the elastic pavement using a urethane resin as a binder has a problem in that the reaction occurs vigorously at high temperatures in summer and foaming occurs, resulting in unevenness on the pavement surface. Further, such conventional urethane-based elastic pavement is insufficient in terms of weather resistance, and improvement has been demanded.
そこで本発明の目的は、上記問題を解消して、バインダーの発泡に起因する舗装表面における凹凸の発生を抑制するとともに、耐候性に優れた弾性舗装を得ることができる弾性舗装材料を提供することにある。 Accordingly, an object of the present invention is to provide an elastic pavement material capable of solving the above-mentioned problems, suppressing the occurrence of unevenness on the pavement surface due to the foaming of the binder, and obtaining an elastic pavement excellent in weather resistance. It is in.
本発明者は鋭意検討した結果、弾性舗装材料に用いるバインダーとして、所定の両末端変性ポリマーを用いることで、上記課題を解決できることを見出して、本発明を完成するに至った。 As a result of intensive studies, the present inventor has found that the above-mentioned problems can be solved by using a predetermined both-end modified polymer as a binder used in an elastic paving material, and has completed the present invention.
即ち、本発明の弾性舗装材料は、ゴムチップおよび／またはゴム粉末と、骨材と、バインダーとを含有する弾性舗装材料において、前記バインダーが、両末端がアルコキシシランで変性されてなる分子量２００〜５００００のポリマーでを主成分とすることを特徴とするものである。 That is, the elastic pavement material of the present invention is an elastic pavement material containing a rubber chip and / or rubber powder, an aggregate, and a binder. The binder has a molecular weight of 200 to 50000 in which both ends are modified with alkoxysilane. It is characterized by comprising as a main component a polymer.
本発明においては、前記アルコキシシランがジメトキシシランであることが好ましい。また、本発明の弾性舗装材料は、好適には、前記ゴムチップおよび／またはゴム粉末３０〜６０体積％と、骨材５０〜５体積％と、バインダー２０〜３５体積％とを含有する。さらに、本発明において前記ポリマーとしては、主鎖が、プロピレングリコールの繰り返し単位からなるもの、および、イソブチレンの繰り返し単位からなるものを、いずれも好適に用いることができる。 In the present invention, the alkoxysilane is preferably dimethoxysilane. The elastic pavement material of the present invention preferably contains 30 to 60% by volume of the rubber chip and / or rubber powder, 50 to 5% by volume of aggregate, and 20 to 35% by volume of binder. Furthermore, in the present invention, any polymer having a main chain composed of a propylene glycol repeating unit and an isobutylene repeating unit can be suitably used as the polymer.
本発明によれば、上記構成としたことにより、バインダーの発泡を抑制することで、これに起因する舗装表面における凹凸の発生を抑制できる弾性舗装材料を実現することが可能となった。また、かかる本発明の弾性舗装材料によれば、耐候性に優れた弾性舗装を得ることが可能である。 According to the present invention, the configuration described above makes it possible to realize an elastic pavement material that can suppress the occurrence of irregularities on the pavement surface due to the suppression of foaming of the binder. Moreover, according to the elastic pavement material of this invention, it is possible to obtain the elastic pavement excellent in weather resistance.
以下、本発明の好適な実施の形態について詳細に説明する。
本発明の弾性舗装材料は、ゴムチップおよび／またはゴム粉末と、骨材と、バインダーとを含有し、バインダーとして、両末端がアルコキシシランで変性されてなる分子量２００〜５００００、好適には５０００〜２００００のポリマーを用いた点に特徴を有する。
Hereinafter, preferred embodiments of the present invention will be described in detail.
The elastic pavement material of the present invention contains a rubber chip and / or rubber powder, an aggregate, and a binder, and has a molecular weight of 200 to 50000, preferably 5000 to 20000, as both ends modified with alkoxysilane. It is characterized in that the polymer is used.
バインダーとして、かかる両末端アルコキシシラン変性ポリマーを用いたことで、従来のウレタンバインダーの場合のようなバインダーの発泡を抑制することができ、これにより、得られる舗装表面における凹凸の発生を効果的に抑制することが可能となった。また、従来のウレタン系弾性舗装に比して、耐候性の点でも向上効果を得ることができるものである。 By using such a both-end alkoxysilane-modified polymer as a binder, it is possible to suppress the foaming of the binder as in the case of conventional urethane binders, thereby effectively generating irregularities on the resulting pavement surface. It became possible to suppress. Moreover, compared with the conventional urethane type elastic pavement, an improvement effect can be acquired also in terms of weather resistance.
本発明に用いるかかる両末端アルコキシシラン変性ポリマーとしては、具体的には例えば、主鎖が、プロピレングリコールまたはイソブチレンの繰り返し単位からなるものを好適に用いることができる。また、アルコキシシランとしては、好適にはジメトキシシランである。バインダー中には、かかる両末端アルコキシシラン変性ポリマーの硬化触媒として、無機スズ、ジブチルスズ、ジオクチルスズなどのスズ系、ビスマス系、チタン系等のアルコキシシラン架橋可能な触媒を添加することができ、好適には、オクチル酸スズを用いる。また、さらに、ラウリルアミン等の助触媒（促進剤）を添加することもできる。硬化触媒の添加量は、両末端アルコキシシラン変性ポリマー１００重量部に対し、１．０〜１０．０重量部程度とする。 As the both-end alkoxysilane-modified polymer used in the present invention, specifically, for example, a polymer whose main chain is composed of propylene glycol or isobutylene repeating units can be suitably used. The alkoxysilane is preferably dimethoxysilane. In the binder, as a curing catalyst for the alkoxysilane-modified polymer at both terminals, tin-based, bismuth-based, titanium-based and other alkoxysilane-crosslinkable catalysts such as inorganic tin, dibutyltin, and dioctyltin can be added. For this, tin octylate is used. Furthermore, a promoter (accelerator) such as laurylamine can be added. The addition amount of the curing catalyst is about 1.0 to 10.0 parts by weight with respect to 100 parts by weight of the both-end alkoxysilane-modified polymer.
本発明の弾性舗装材料においては、バインダーとして、上記所定の両末端アルコキシシラン変性ポリマーを主成分とするものを用いるものであればよく、それ以外の点については、常法に従い適宜構成することができ、特に制限されるものではない。 In the elastic pavement material of the present invention, it is only necessary to use a binder mainly composed of the above-mentioned predetermined both-end alkoxysilane-modified polymer, and the other points can be appropriately configured according to a conventional method. There is no particular limitation.
本発明に用いるゴムチップおよび／またはゴム粉末は、舗装面に弾力性を付与するために弾性舗装材料中に配合されるものであり、材質等については特に限定されず、天然ゴムやイソプレンゴム、スチレン−ブタジエンゴム、ブチルゴム、エチレン−プロピレンゴム等を利用することができる。かかるゴムチップおよび／またはゴム粉末は、ゴムタイヤ、ウェザーストリップ、ホース類等の使用済み加硫ゴム製品の廃材、成形の際に生成する不要の端材、成形不良品等から得ることもできる。また、ゴムチップおよび／またはゴム粉末の粒径としては、１ｍｍ以下の微細なものから１０ｍｍ程度のものまでを適宜使用することができるが、特に、粒径１〜５ｍｍ程度のものが、弾力性及び空隙形成の点で有効であるためにより好ましい。 The rubber chip and / or rubber powder used in the present invention is blended in an elastic pavement material in order to impart elasticity to the pavement surface, and the material is not particularly limited. Natural rubber, isoprene rubber, styrene -Butadiene rubber, butyl rubber, ethylene-propylene rubber or the like can be used. Such rubber chips and / or rubber powders can also be obtained from waste materials of used vulcanized rubber products such as rubber tires, weather strips, hoses, etc., unnecessary end materials generated during molding, molding defects, and the like. In addition, the particle size of the rubber chip and / or rubber powder can be suitably used from a fine one of 1 mm or less to about 10 mm, especially those having a particle size of about 1 to 5 mm. This is more preferable because it is effective in forming voids.
本発明の弾性舗装材料中におけるゴムチップおよび／またはゴム粉末の割合は、３０〜６０体積％、好適には４０〜５５体積％である。この割合が３０重量％未満であると弾性舗装材料としての効果が十分ではなく、一方、６０重量％を超えると、舗装に適用するために十分な物性が得られなくなる。 The ratio of the rubber chip and / or rubber powder in the elastic pavement material of the present invention is 30 to 60% by volume, preferably 40 to 55% by volume. If this proportion is less than 30% by weight, the effect as an elastic paving material is not sufficient, while if it exceeds 60% by weight, sufficient physical properties for application to pavement cannot be obtained.
本発明において使用する骨材としては、特に制限はなく、川砂利、川砂等の天然の骨材や砕石、スラグ、コンクリート、ガラス、ＦＲＰ等のリサイクル骨材を使用することができる。この骨材に使用する石材、砂等は、完成した舗装の強度、耐摩耗性を確保し、表面に露出して防滑作用を得るためのものである。石材は互いに噛み合って荷重を分散させる機能を持つことが好ましく、このため、砕石のような尖った形状で硬い物が適当である。
また、粒径０．５〜３０ｍｍの粗粒骨材に対して、粒径０．５ｍｍ以下の細粒骨材を５体積％以上混合することが好ましい。粗粒骨材は、互いに噛み合って隙間を形成するような、砕石のような尖った形状で硬いものが適当である。一方、細粒骨材は、大型の粗粒骨材の表面に付着してタイヤ等に対して防滑作用（サンドペーパーのような研磨効果）をもたらすこととなる。
There is no restriction | limiting in particular as an aggregate used in this invention, Recycled aggregates, such as natural aggregates, such as river gravel and river sand, and crushed stone, slag, concrete, glass, and FRP, can be used. The stone, sand, and the like used for the aggregate are for ensuring the strength and wear resistance of the completed pavement and for exposing to the surface to obtain an anti-slip effect. The stone materials preferably have a function of meshing with each other to disperse the load. For this reason, a sharp object such as a crushed stone is suitable.
Further, it is preferable to mix 5% by volume or more of fine aggregate having a particle size of 0.5 mm or less with respect to coarse aggregate having a particle size of 0.5 to 30 mm. As the coarse-grained aggregate, a hard one having a sharp shape like a crushed stone that meshes with each other to form a gap is suitable. On the other hand, the fine-grained aggregate adheres to the surface of the large-sized coarse-grained aggregate and brings about an anti-slip action (polishing effect like sandpaper) on the tire or the like.
本発明の弾性舗装材料における骨材の配合量は、５０〜５体積％、好適には３０〜１０体積％である。弾性舗装材料中の骨材の割合が５体積％未満であると、強度が十分ではなく、一方、５０体積％を超えると、十分な弾性および低音効果が得られなくなる。 The compounding quantity of the aggregate in the elastic pavement material of this invention is 50-5 volume%, Preferably it is 30-10 volume%. If the proportion of the aggregate in the elastic pavement material is less than 5% by volume, the strength is not sufficient, while if it exceeds 50% by volume, sufficient elasticity and bass effect cannot be obtained.
また、バインダーの配合量としては、骨材の結着強度の観点から、２０〜３５体積％、好適には２２〜３０体積％である。 Moreover, as a compounding quantity of a binder, it is 20-35 volume% from a viewpoint of the binding strength of an aggregate, Preferably it is 22-30 volume%.
なお、本発明の弾性舗装材料には、所望に応じ、酸化防止剤、紫外線吸収剤等の通常用いられる添加剤を適宜配合することが可能である。 In addition, it is possible to mix | blend normally used additives, such as antioxidant and a ultraviolet absorber, suitably with the elastic pavement material of this invention as needed.
本発明の弾性舗装材料は、骨材と、ゴムチップおよび／またはゴム粉末との混合物に、上記所定のバインダーおよび必要に応じて添加される添加剤を混合することにより得ることができる。この場合の混合方法には特に制限はなく、これらが均一に混合できる方法であればよい。骨材へのバインダーの添加、混合時の温度は常温でよいが、低温の場合は硬化が遅れ、高温の場合は硬化が促進されるため、必要に応じて温度調節を行うことが好ましい。かかる弾性舗装材料は、通常１０〜５０ｍｍ程度の厚さに、空隙率１０〜４０％程度の空隙が形成されるように施工し、硬化させる。 The elastic pavement material of the present invention can be obtained by mixing the above-mentioned predetermined binder and additives that are added as necessary, into a mixture of aggregate, rubber chip and / or rubber powder. The mixing method in this case is not particularly limited, and any method that can uniformly mix these may be used. The temperature at the time of addition and mixing of the binder to the aggregate may be room temperature, but curing is delayed at a low temperature, and curing is accelerated at a high temperature. Therefore, it is preferable to adjust the temperature as necessary. Such an elastic pavement material is usually applied to a thickness of about 10 to 50 mm so that voids with a porosity of about 10 to 40% are formed and cured.
本発明の弾性舗装材料は、施工対象の路面に対して必要に応じてプライマー処理を施した後、直接敷設して舗装面を形成するもの（現場施工タイプ）であっても、または、あらかじめ金型にて所定形状に成形硬化させたブロック状のモールド成型品（プレス成型品）を、施工面に敷設するものであってもよく、特に制限されるものではない。 The elastic pavement material of the present invention is a material (primary construction type) in which a pavement surface is formed by laying directly after applying a primer treatment to a road surface to be constructed as necessary. A block-shaped molded product (press-molded product) molded and cured in a predetermined shape with a mold may be laid on the construction surface, and is not particularly limited.
以下、本発明を、実施例を用いてより詳細に説明する。
（実施例および比較例）
バインダーとして、下記の表１中にそれぞれ示すポリマーを用い、各ポリマー１００重量部に対し、オクチル酸スズ３．５重量部およびラウリルアミン０．６重量部（花王（株）製、ファーミン２０Ｄ）を配合した。
Hereinafter, the present invention will be described in more detail with reference to examples.
(Examples and Comparative Examples)
As the binder, the polymers shown in Table 1 below were used, and 3.5 parts by weight of tin octylate and 0.6 parts by weight of laurylamine (manufactured by Kao Corporation, Farmin 20D) were added to 100 parts by weight of each polymer. Blended.
得られた各バインダー混合物２５体積％に、ゴムチップおよび／またはゴム粉末（粒径２〜５ｍｍ）５６体積％および骨材（珪砂）１９体積％を混合し、混練して、図１（ａ）に示すような高さ３ｃｍ×直径１０ｃｍの円柱状サンプル１を作製し、３０℃のオーブン内に６時間置いて、発泡による表面高さの変化ｈを測定した。また、各円柱状サンプル１を耐候試験機内に３００時間置いて、表面観察を行った。これらの結果を下記の表１中に併せて示す。
1% of the obtained binder mixture was mixed with 56% by volume of rubber chips and / or rubber powder (particle size 2 to 5 mm) and 19% by volume of aggregate (silica sand), and kneaded, as shown in FIG. A
＊２）変性シリコン系ポリマー ＡＧＣ社製，商品名：エクセスター，（主鎖：ポリプロピレングリコール（ＰＰＧ），両末端基：ジメトキシシラン，分子量１００００）
＊３）ポリイソブチレン系ポリマー 鐘淵化学（株）製，商品名：エピオン，（主鎖：イソブチレン，両末端基：ジメトキシシラン，分子量１００００）
* 2) Modified silicon-based polymer, manufactured by AGC, trade name: Exester, (main chain: polypropylene glycol (PPG), both end groups: dimethoxysilane, molecular weight 10,000)
* 3) Polyisobutylene polymer, manufactured by Kaneka Chemical Co., Ltd., trade name: Epion (main chain: isobutylene, both end groups: dimethoxysilane, molecular weight 10,000)
上記表１に示すように、バインダーとして、所定の両末端変性ポリマーを用いた実施例１，２の弾性舗装材料によれば、発泡による舗装表面の凹凸の発生を抑制することができるとともに、耐候性に優れる弾性舗装を得ることが可能となることが確認できた。 As shown in Table 1, according to the elastic pavement materials of Examples 1 and 2 using a predetermined both-end-modified polymer as a binder, it is possible to suppress the occurrence of unevenness of the pavement surface due to foaming and weather resistance. It has been confirmed that it is possible to obtain an elastic pavement with excellent properties.
１ 円柱状サンプル 1 Cylindrical sample
Claims (5)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2019199697A (en) * | 2018-05-14 | 2019-11-21 | 東亜道路工業株式会社 | Pedestrian elastic paving mixture, pedestrian elastic paving construction method, and cured product |
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| JP2019199697A (en) * | 2018-05-14 | 2019-11-21 | 東亜道路工業株式会社 | Pedestrian elastic paving mixture, pedestrian elastic paving construction method, and cured product |
| JP7124434B2 (en) | 2018-05-14 | 2022-08-24 | 東亜道路工業株式会社 | Pedestrian-type elastic pavement mixture, construction method and hardening body for pedestrian-type elastic pavement |
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