JPH08333515A - Additive for regenerated asphalt and regenerated asphalt with the additive - Google Patents
Additive for regenerated asphalt and regenerated asphalt with the additiveInfo
- Publication number
- JPH08333515A JPH08333515A JP13936995A JP13936995A JPH08333515A JP H08333515 A JPH08333515 A JP H08333515A JP 13936995 A JP13936995 A JP 13936995A JP 13936995 A JP13936995 A JP 13936995A JP H08333515 A JPH08333515 A JP H08333515A
- Authority
- JP
- Japan
- Prior art keywords
- asphalt
- additive
- asphalt pavement
- waste
- pavement
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、再生アスファルト用添
加剤及びそれを配合する再生アスファルトに関し、特に
はアスファルト舗装廃材再生用添加剤及び再生アスファ
ルト舗装材に関する。さらに詳しくは、従来のものに比
べ、アスファルト舗装廃材の繰り返し再生能力に優れ、
アスファルト舗装廃材の廃棄用地不足や環境破壊などの
問題を改善しうると共に、省資源化が図れるアスファル
ト舗装廃材再生用添加剤、及びこのものをアスファルト
舗装廃材に配合してなる再生アスファルト舗装材に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an additive for recycled asphalt and a recycled asphalt containing the additive, and more particularly to an additive for recycling waste asphalt pavement and a recycled asphalt pavement. More specifically, compared with conventional ones, it has excellent ability to repeatedly recycle asphalt pavement waste,
Additives for asphalt pavement waste reclaiming, which can improve problems such as shortage of land for waste asphalt pavement waste and environmental destruction, and save resources, and recycled asphalt pavement materials obtained by blending this with asphalt pavement waste Is.
【０００２】[0002]
【従来の技術】従来、アスファルト舗装材は、産業廃棄
物として処分されてきたが、近年、廃棄用地不足や環境
破壊などの問題、及び省資源などの観点から、その再生
利用が試みられてきた。さらに最近では、アスファルト
舗装廃材を再生してアスファルト舗装に使用した後、あ
るいは工事などでアスファルト舗装廃材になったものに
ついても再々生して使用できること、すなわち、アスフ
ァルト舗装廃材の繰り返し再生が要求されつつある。こ
のアスファルト舗装廃材中のアスファルト分はかなり劣
化が進行しており、これを再生して再利用するには、通
常、まずアスファルト舗装廃材を機械粉砕又は熱解砕に
より破砕し、次いでこれに再生用添加剤を混合して加熱
軟化処理するか、あるいは、該破砕物を加熱軟化処理し
たのち、これに再生用添加剤を混合することにより、加
熱再生アスファルト混合物を調製し、施工するといった
方法が用いられている。この際用いられる再生用添加剤
は、アスファルト舗装廃材中のアスファルトの針入度，
伸度及びその他の性状を回復するために添加されるもの
である。2. Description of the Related Art Conventionally, asphalt pavement materials have been disposed of as industrial waste, but in recent years, recycling has been attempted from the viewpoints of problems such as shortage of land for disposal, environmental destruction, and resource saving. . More recently, after the waste asphalt pavement materials have been recycled and used for asphalt pavement, or even those that have become asphalt pavement waste due to construction, etc., can be regenerated and used again, that is, repeated reuse of asphalt pavement materials is required. is there. The asphalt content in this asphalt pavement waste material has deteriorated considerably, and in order to recycle and reuse it, usually, asphalt pavement waste material is first crushed by mechanical crushing or thermal crushing, and then recycled for reuse. A method of preparing a heat-regenerated asphalt mixture by mixing additives with a heat-softening treatment, or after heat-softening the crushed material, and then adding a regeneration additive to the crushed material, and applying the method are used. Has been. Regeneration additives used at this time are the penetration of asphalt in asphalt pavement waste,
It is added to recover the elongation and other properties.
【０００３】ところで、アスファルトはコロイド系であ
って、その分散相がアスファルテン、連続相がマルテン
であるといわれており、そして、マルテンはさらに飽和
分，芳香族分，レジン分よりなっているといわれてい
る。アスファルトの劣化とは、酸化などの化学変化によ
りアスファルトの組成が変化し（飽和分→芳香族分→レ
ジン分→アスファルテンと分子量が大きくなる方向に変
化）、コロイド系の状態が変化することでる。従来、再
生用添加剤の開発は、コンステンシー（硬さ）を元のレ
ベルに戻すだけでなく、組成的に不足分を補ってオリジ
ナルに近い組成に戻す考え方で進められてきた。特に芳
香族分の補給が効果があると考えられ、芳香族化合物を
高濃度に含有する添加剤、例えば高芳香族系鉱油や動植
物油系添加剤などが再生用添加剤として市場に提供され
てきた。しかしながら、これらの添加剤を使用した場合
のアスファルト舗装廃材の繰り返し再生性については、
これまで、あまり報告されていないのが実状である。例
えば、針入度２１〜２５程度の劣化アスファルトを用い
て再生（再生用添加剤の添加）と加熱劣化を繰り返した
試験において、４サイクル以上にわたり、針入度と共
に、伸度及び軟化点を充分に元のレベルに戻すことので
きる添加剤は、鉱油１００％のものについては皆無であ
る。なお、再生アスファルトは一般にひび割れが生じる
懸念があるため、このひび割れ発生の指標となる伸度の
回復が重要である。By the way, it is said that asphalt is a colloidal system, the dispersed phase of which is asphaltene, and the continuous phase thereof is martens, and the martens is further composed of a saturated component, an aromatic component and a resin component. ing. Degradation of asphalt means that the composition of asphalt changes due to chemical changes such as oxidation (saturated content → aromatic content → resin content → asphaltene and molecular weight increases), and the state of the colloid system changes. Conventionally, the development of additives for regeneration has been carried out not only by returning the consistency (hardness) to the original level, but also by compensating for the deficiency in terms of composition and returning it to a composition close to the original. It is considered that supplementation of aromatic components is particularly effective, and additives containing high concentrations of aromatic compounds, such as highly aromatic mineral oils and animal and vegetable oil additives, have been provided to the market as additives for regeneration. It was However, regarding the recyclability of asphalt pavement waste materials when these additives are used,
The fact is that there have been few reports so far. For example, in a test in which regeneration (addition of a regeneration additive) and heat deterioration were repeated using deteriorated asphalt having a penetration of about 21 to 25, sufficient penetration and softening point were obtained along with penetration for 4 cycles or more. There is no additive that can be restored to the original level for 100% mineral oil. Since recycled asphalt generally has a risk of cracking, it is important to recover the elongation, which is an index of cracking.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、このような
状況下で、従来のものに比べ、使用済みアスファルト、
特にアスファルト舗装廃材の繰り返し再生能力に優れ、
アスファルト舗装廃材の廃棄用地不足や環境破壊などの
問題を改善しうると共に、省資源化が可能なアスファル
ト舗装廃材等の再生用添加剤、及びこのものを用いて得
られた再生アスファルト舗装材を提供することを目的と
するものである。SUMMARY OF THE INVENTION Under the circumstances, the present invention is based on the use of used asphalt,
Especially excellent in the ability to repeatedly recycle waste asphalt pavement,
Providing a recycling additive such as waste asphalt pavement material that can improve the problems such as shortage of waste land of asphalt pavement waste and environmental destruction and resource saving, and recycled asphalt pavement material obtained using this The purpose is to do.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、前記目的
を達成するために鋭意研究を重ねた結果、動粘度及びア
ニリン点が特定の範囲にあるエキストラクト油が、アス
ファルト舗装廃材の繰り返し再生能力に優れているこ
と、そしてこのものをアスファルト舗装廃材に特定の割
合で配合することにより、舗装材として充分に使用可能
な再生アスファルト舗装材が得られることを見出した。
本発明は、かかる知見に基づいて完成したものである。
すなわち、本発明は、石油精製の溶剤抽出工程から得ら
れるエキストラクト油であって、温度４０℃における動
粘度が６００〜２０００ｍｍ2 ／ｓｅｃであり、かつア
ニリン点が３５℃以下であることを特徴とする再生アス
ファルト用添加剤、特にアスファルト舗装廃材再生用添
加剤を提供するものである。また、本発明は、アスファ
ルト舗装廃材等のアスファルト廃材に対し、その中のア
スファルト分の重量に基づき、上記添加剤を１〜３０重
量％の割合で配合してなる再生アスファルト、特に再生
アスファルト舗装材をも提供するものである。Means for Solving the Problems As a result of intensive studies to achieve the above-mentioned object, the present inventors have found that extract oil having a kinematic viscosity and an aniline point in a specific range is repeatedly used as an asphalt pavement waste material. It has been found that the recycled asphalt pavement material is excellent in recycling ability, and that by mixing this material with the asphalt pavement waste material in a specific ratio, a recycled asphalt pavement material that can be sufficiently used as a pavement material can be obtained.
The present invention has been completed based on such findings.
That is, the present invention is an extract oil obtained from a solvent extraction step of petroleum refining, which has a kinematic viscosity at a temperature of 40 ° C of 600 to 2000 mm 2 / sec and an aniline point of 35 ° C or less. The present invention provides an additive for recycled asphalt, particularly an additive for recycling asphalt pavement waste. The present invention also relates to a recycled asphalt, particularly a recycled asphalt pavement material, in which the above-mentioned additives are blended in a proportion of 1 to 30% by weight based on the weight of the asphalt content in the asphalt waste material such as asphalt pavement waste material. Is also provided.
【０００６】本発明の添加剤は、各種用途に供されたア
スファルトの再生に適用されるが、特にアスファルト舗
装廃材に好適に適用される。ここでアスファルト舗装廃
材については各種のものが挙げられるが、各種工事の際
に発生するアスファルト舗装廃材、例えば地下鉄工事，
地下配管工事，道路舗装工事などの際に発生するアスフ
ァルト舗装廃材を挙げることができる。このアスファル
ト舗装廃材としては、そのアスファルトが針入度２０以
上、とりわけ２５以上のものが、再生しやすいので好適
である。なお、針入度はＪＩＳ Ｋ−２２０７に準じ、
２５℃にて求めた値である（単位：１／１０ｍｍ）。The additive of the present invention is applied to the regeneration of asphalt used for various purposes, and is particularly preferably applied to asphalt pavement waste. There are various types of asphalt pavement waste materials, but asphalt pavement waste materials generated during various construction works, such as subway construction,
One example is asphalt pavement waste generated during underground piping work and road pavement work. As the asphalt pavement waste material, it is preferable that the asphalt has a penetration of 20 or more, particularly 25 or more, because it is easily regenerated. The penetration is in accordance with JIS K-2207,
It is a value obtained at 25 ° C. (unit: 1/10 mm).
【０００７】本発明の添加剤は、石油精製の溶剤抽出工
程から得られるエキストラクト油からなり、かつ温度４
０℃における動粘度が６００〜２０００ｍｍ2 ／ｓｅｃ
の範囲にあって、アニリン点が３５℃以下であることが
必要である。この動粘度が６００ｍｍ2 ／ｓｅｃ未満で
は繰り返し再生性が不充分であり、２０００ｍｍ2 ／ｓ
ｅｃを超えると再生プラントにおけるハンドリングが煩
雑になる。繰り返し再生性及びハンドリングなどの面か
ら、温度４０℃における好ましい動粘度は９００〜１６
００ｍｍ2 ／ｓｅｃの範囲である。また、アニリン点が
３５℃を超えると繰り返し再生性が不充分となる。繰り
返し再生性を良好なものにするには、アニリン点は特に
１０℃以下が好ましい。なお、動粘度及びアニリン点
は、それぞれＪＩＳ Ｋ−２２８３及びＪＩＳ Ｋ−２
２５６に準拠して求めた値である。さらに上記エキスト
ラクト油は、粘度指数が−６０以下、特に−１００以下
のものが繰り返し再生性の面で好ましい。The additive of the present invention comprises an extract oil obtained from a solvent extraction process of petroleum refining and has a temperature of 4
Kinematic viscosity at 0 ° C is 600-2000 mm 2 / sec
It is necessary that the aniline point is 35 ° C. or lower within the range of. If the kinematic viscosity is less than 600 mm 2 / sec, the reproducibility is insufficient and the repetitive reproducibility is 2000 mm 2 / s.
If it exceeds ec, handling in the regeneration plant becomes complicated. From the viewpoint of repeatability and handling, the preferable kinematic viscosity at a temperature of 40 ° C. is 900 to 16
It is in the range of 00 mm 2 / sec. If the aniline point exceeds 35 ° C, the reproducibility will be insufficient. The aniline point is particularly preferably 10 ° C. or lower in order to improve the reproducibility. The kinematic viscosity and aniline point are JIS K-2283 and JIS K-2, respectively.
It is a value determined according to 256. Further, it is preferable that the extract oil has a viscosity index of -60 or less, particularly -100 or less in terms of reproducibility.
【０００８】このような性状を有するエキストラクト油
としては、様々なエキストラクト油があるが、そのうち
ナフテン系油精製時に溶剤抽出されるエキストラクト油
が好適である。このナフテン系油精製時に溶剤抽出され
るエキストラクト油は、パラフィン系油などの精製時に
溶剤抽出されるエキストラクト油に比べて、同様な組成
（飽和分，芳香族分，レジン分）を有していてもアニリ
ン点が低く、化学構造がかなり異なるものと推定され
る。アニリン点が低いエキストラクト油は繰り返し再生
性が良好であり、したがって、ナフテン系油精製時に溶
剤抽出されるエキストラクト油が特に好適である。この
ような性状を有する本発明のアスファルト舗装廃材再生
用添加剤は、従来のものに比べ、アスファルト舗装廃材
の繰り返し再生能力に優れている。As the extract oil having such properties, there are various extract oils, and among them, the extract oil which is solvent-extracted at the time of refining a naphthenic oil is preferable. This extract oil that is solvent-extracted during refining of naphthenic oil has a similar composition (saturated content, aromatic content, resin content) compared to extract oil that is solvent-extracted during refining of paraffinic oil and the like. However, the aniline point is low and the chemical structures are presumably different. An extract oil having a low aniline point has good recyclability, and therefore, an extract oil which is solvent-extracted at the time of refining a naphthenic oil is particularly suitable. The additive for reclaiming asphalt pavement waste materials of the present invention having such properties is excellent in the ability of repeatedly recycling asphalt pavement waste materials as compared with the conventional additive.
【０００９】次に、本発明の再生アスファルト舗装材
は、アスファルト舗装廃材に対し、上記添加剤を配合し
て再生したものであって、その配合量は、該廃材中のア
スファルトの針入度及び伸度などを所望の値にまで回復
させるのに必要な量であり、本発明においては、廃材中
のアスファルト分の重量に基づき、１〜３０重量％の範
囲で選定すべきである。この量が１重量％未満では、再
生アスファルト舗装材は、その中のアスファルトの針入
度及び伸度などが所望の値にまで回復せず、再生効果が
不充分であって、舗装した場合に舗装面にひび割れが発
生するなどの問題が生じるおそれがある。また、３０重
量％を超えると再生効果が過剰となり、特に針入度が所
望の値を超え、耐流動性能が低下する傾向がみられる。
適切な再生効果及び耐流動性能などの面から、特に好ま
しい配合量は３〜１７重量％の範囲である。この本発明
の再生アスファルト舗装材は、舗装面にひび割れが発生
するなどの問題もなく、各種舗装工事に好適に用いられ
る。Next, the recycled asphalt pavement material of the present invention is prepared by blending the above-mentioned additives to the waste asphalt pavement material, and the blending amount is the penetration degree of the asphalt in the waste material and It is an amount necessary for recovering the elongation and the like to a desired value, and in the present invention, it should be selected in the range of 1 to 30% by weight based on the weight of the asphalt content in the waste material. If this amount is less than 1% by weight, the recycled asphalt pavement material does not recover the penetration and elongation of the asphalt in it to the desired values, and the regeneration effect is insufficient. Problems such as cracks on the pavement surface may occur. On the other hand, if it exceeds 30% by weight, the regenerating effect becomes excessive, and in particular, the penetration exceeds the desired value, and the flow resistance performance tends to deteriorate.
From the viewpoints of appropriate regeneration effect and flow resistance, the particularly preferable blending amount is in the range of 3 to 17% by weight. The recycled asphalt pavement material of the present invention is suitable for various pavement works without problems such as cracks on the pavement surface.
【００１０】[0010]
【実施例】次に、本発明を実施例によりさらに詳しく説
明するが、本発明は、これらの例によってなんら限定さ
れるものではない。 実施例１〜３及び比較例１〜３ 新ストレートアスファルト６０〜８０を、２００℃の乾
燥機で強制劣化させ、針入度２５の劣化アスファルトを
作製した。針入度はＪＩＳ Ｋ−２２０７に準じ、２５
℃にて求めた値である（単位１／１０ｍｍ）。次に、こ
の劣化アスファルトを用い、再生（第１表に示す性状の
添加剤を配合）と加熱劣化（薄膜加熱試験，ＪＩＳ Ｋ
−２２０７）を繰り返し、伸度合格再生回数〔伸度（１
５℃）１００ｃｍ以上の再生回数〕，軟化点合格再生回
数（軟化点４4.０〜５2.０℃の再生回数）及び再生時配
合量（伸度合格時）を求めた。強制劣化後のアスファル
トの再生は、添加剤を目標針入度７０±２になるように
添加して行った。なお伸度（１５℃，単位ｃｍ）及び軟
化点の基準はＪＩＳ Ｋ−２２０７のストレートアスフ
ァルト６０〜８０に基づく。EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Examples 1 to 3 and Comparative Examples 1 to 3 The new straight asphalts 60 to 80 were forcibly deteriorated by a dryer at 200 ° C to prepare deteriorated asphalts having a penetration of 25. Penetration is 25 according to JIS K-2207.
It is a value obtained at ° C (unit: 1/10 mm). Next, using this deteriorated asphalt, regeneration (compounding additives with properties shown in Table 1) and heat deterioration (thin film heating test, JIS K
-2207) is repeated, and the number of times of reproduction that passes the elongation [elongation (1
5 ° C.) Regeneration number of 100 cm or more], softening point acceptable regeneration number (softening point 44.0 to 52.0 ° C. regeneration number) and compounding amount during regeneration (when elongation was acceptable) were determined. Regeneration of asphalt after forced deterioration was performed by adding additives so that the target penetration was 70 ± 2. The elongation (15 ° C, unit cm) and softening point are based on JIS K-2207 straight asphalt 60-80.
【００１１】また、劣化アスファルトの針入度回復に必
要な添加剤の配合量を、１回目の再生時における目標針
入度７０±２及び９０±２の場合について求めた。これ
らの結果を第２表に示す。なお、上記試験方法は、「第
１９回日本道路会議論文集」第３９０ページ（平成３
年）、及び「第２０回日本道路会議論文集」第４４４ペ
ージ（平成５年）記載の方法に準拠して行った。また、
劣化アスファルトとして針入度２５のものを使用したの
は、次に示す理由による。すなわち、再生アスファルト
舗装材に用いるアスファルト舗装廃材中の劣化アスファ
ルトの２５℃における針入度が２０以上と規定されてお
り〔（社）日本道路協会，「プラント再生舗装技術指
針」（平成４年１２月）〕、針入度２５の劣化アスファ
ルトは最悪条件をシュミレートして採用したものであ
る。Further, the compounding amounts of the additives necessary for recovering the penetration of deteriorated asphalt were determined for the target penetrations of 70 ± 2 and 90 ± 2 during the first regeneration. Table 2 shows the results. In addition, the above-mentioned test method is described in “The 19th Japan Road Congress Proceedings”, page 390 (1993).
Year), and “The 20th Japan Road Congress Proceedings” page 444 (1993). Also,
The deteriorated asphalt having a penetration of 25 was used for the following reason. In other words, the penetration of deteriorated asphalt in waste asphalt pavement used for recycled asphalt pavement at 25 ° C is specified to be 20 or more [Japan Road Association, "Plant Reclaimed Pavement Technical Guide" (December 1992). Monthly]], the deteriorated asphalt having a penetration of 25 is adopted by simulating the worst condition.
【００１２】[0012]
【表１】 [Table 1]
【００１３】[0013]
【表２】 [Table 2]
【００１４】（注） 動粘度： ＪＩＳ Ｋ−２２８３ 粘度指数： ＪＩＳ Ｋ−２２８３ アニリン点： ＪＩＳ Ｋ−２２５６ 密度： ＪＩＳ Ｋ−２２４９ 引火点： ＪＩＳ Ｋ−２２６５ （クリープランド式） 流動点： ＪＩＳ Ｋ−２２６９ カラムクロマト分析： ＪＰＩ−５Ｓ−２２−８３(Note) Kinematic viscosity: JIS K-2283 Viscosity index: JIS K-2283 Aniline point: JIS K-2256 Density: JIS K-2249 Flash point: JIS K-2265 (Cleveland type) Pour point: JIS K -2269 column chromatographic analysis: JPI-5S-22-83
【００１５】[0015]
【表３】 [Table 3]
【００１６】[0016]
【表４】 [Table 4]
【００１７】第２表から分かるように、再生アスファル
トで伸度の要求の厳しいアスファルト６０〜８０におい
ても再生回数を大幅に向上させることができる。As can be seen from Table 2, the number of times of regeneration can be greatly improved even in the case of asphalt 60 to 80 which is a regenerated asphalt and has a demand for elongation.
【００１８】[0018]
【発明の効果】本発明のアスファルト舗装廃材再生用添
加剤は、従来のものに比べ、アスファルト舗装廃材の繰
り返し再生能力に優れている。したがって、この再生用
添加剤を用いることにより、アスファルト舗装廃材の廃
棄用地不足や環境破壊などの問題を改善しうると共に、
省資源化を図ることができる。また、本発明の再生アス
ファルト舗装材は、舗装面にひび割れが発生するなどの
問題もなく、各種舗装工事に好適に用いられる。The additive for reclaiming asphalt pavement waste materials of the present invention is excellent in the ability to repeatedly recycle asphalt pavement waste materials as compared with the conventional additive. Therefore, by using this reclaiming additive, it is possible to improve problems such as shortage of waste land for asphalt pavement waste and environmental destruction, and
Resource saving can be achieved. Further, the recycled asphalt pavement material of the present invention has no problem such as cracking on the pavement surface, and is suitably used for various pavement works.
Claims (3)
キストラクト油であって、温度４０℃における動粘度が
６００〜２０００ｍｍ2 ／ｓｅｃであり、かつアニリン
点が３５℃以下であることを特徴とする再生アスファル
ト用添加剤。1. An extract oil obtained from a solvent extraction step of petroleum refining, which has a kinematic viscosity at a temperature of 40 ° C. of 600 to 2000 mm 2 / sec and an aniline point of 35 ° C. or lower. Additive for recycled asphalt.
時に溶剤抽出されるエキストラクト油である請求項１記
載の再生アスファルト用添加剤。2. The additive for regenerated asphalt according to claim 1, wherein the extract oil is an extract oil that is solvent-extracted during refining of a naphthenic oil.
ファルト分の重量に基づき、請求項１又は２記載の添加
剤を１〜３０重量％の割合で配合してなる再生アスファ
ルト。3. A recycled asphalt obtained by mixing the asphalt waste material with the additive according to claim 1 or 2 in a proportion of 1 to 30% by weight based on the weight of the asphalt content therein.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13936995A JP3805000B2 (en) | 1995-06-06 | 1995-06-06 | Recycled asphalt additive |
| JP31579398A JPH11222594A (en) | 1995-06-06 | 1998-11-06 | Reclaimed asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13936995A JP3805000B2 (en) | 1995-06-06 | 1995-06-06 | Recycled asphalt additive |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31579398A Division JPH11222594A (en) | 1995-06-06 | 1998-11-06 | Reclaimed asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08333515A true JPH08333515A (en) | 1996-12-17 |
| JP3805000B2 JP3805000B2 (en) | 2006-08-02 |
Family
ID=15243729
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13936995A Expired - Lifetime JP3805000B2 (en) | 1995-06-06 | 1995-06-06 | Recycled asphalt additive |
| JP31579398A Pending JPH11222594A (en) | 1995-06-06 | 1998-11-06 | Reclaimed asphalt |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31579398A Pending JPH11222594A (en) | 1995-06-06 | 1998-11-06 | Reclaimed asphalt |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JP3805000B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008025795A1 (en) * | 2006-08-29 | 2008-03-06 | Shell Internationale Research Maatschappij B.V. | Asphalt binder |
| JP2013155345A (en) * | 2012-01-31 | 2013-08-15 | Jx Nippon Oil & Energy Corp | Asphalt-regenerating additive composition for pavement, and regnerating asphalt-paving material |
| JP2020029520A (en) * | 2018-08-23 | 2020-02-27 | 出光興産株式会社 | Additive for reclaiming deteriorated asphalt and method for manufacturing reclaimed asphalt mixture |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016089008A (en) * | 2014-11-04 | 2016-05-23 | 昭和瀝青工業株式会社 | Additive for recycled asphalt |
-
1995
- 1995-06-06 JP JP13936995A patent/JP3805000B2/en not_active Expired - Lifetime
-
1998
- 1998-11-06 JP JP31579398A patent/JPH11222594A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008025795A1 (en) * | 2006-08-29 | 2008-03-06 | Shell Internationale Research Maatschappij B.V. | Asphalt binder |
| JP2008056742A (en) * | 2006-08-29 | 2008-03-13 | Showa Shell Sekiyu Kk | Asphalt binder |
| JP2013155345A (en) * | 2012-01-31 | 2013-08-15 | Jx Nippon Oil & Energy Corp | Asphalt-regenerating additive composition for pavement, and regnerating asphalt-paving material |
| JP2020029520A (en) * | 2018-08-23 | 2020-02-27 | 出光興産株式会社 | Additive for reclaiming deteriorated asphalt and method for manufacturing reclaimed asphalt mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3805000B2 (en) | 2006-08-02 |
| JPH11222594A (en) | 1999-08-17 |
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