JPH11228839A - Asphalt emulsifier - Google Patents
Asphalt emulsifierInfo
- Publication number
- JPH11228839A JPH11228839A JP4863098A JP4863098A JPH11228839A JP H11228839 A JPH11228839 A JP H11228839A JP 4863098 A JP4863098 A JP 4863098A JP 4863098 A JP4863098 A JP 4863098A JP H11228839 A JPH11228839 A JP H11228839A
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- Prior art keywords
- asphalt
- weight
- parts
- acid
- emulsion
- 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.)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、骨材やセメントと
混合して道路などの舗装に用いられるアスファルト乳剤
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an asphalt emulsion used for pavement such as roads by mixing with aggregate or cement.
【０００２】[0002]
【従来の技術】アスファルト乳剤は、これに骨材、フィ
ラー、その他の成分を添付し、これを道路や鉄道あるい
は駐車場などの舗装に利用されている。このさい水分が
蒸発し、エマルジョンが破壊されアスファルトが硬化す
るが、この硬化時間は舗装作業の能率あるいは必要とす
る道路閉鎖時間を大きく左右する原因になっている。2. Description of the Related Art Asphalt emulsions have aggregates, fillers and other components attached thereto, and are used for paving roads, railroads and parking lots. The water evaporates, the emulsion is destroyed and the asphalt hardens, and the hardening time greatly affects the efficiency of the pavement work or the required road closing time.
【０００３】一方、このようにして硬化したアスファル
トと骨材の接着性の良否は、舗装の寿命に大きな影響を
及ぼす因子であるため、骨材の剥離性をどのように防止
するかについて従来種々の提案がなされている。[0003] On the other hand, the quality of the adhesion between the asphalt thus cured and the aggregate is a factor that greatly affects the service life of the pavement, and various methods for preventing the exfoliation of the aggregate have conventionally been used. The proposal has been made.
【０００４】このようなアスファルトと骨材の剥離性を
防止するため米国特許第３８６７１６２号明細書におい
ては、アスファルト５０〜８０重量％、カチオン乳化剤
０．０５〜２．０重量％、酸０〜０．５重量％、トール
油類よりなる剥離防止剤０．２５〜３重量％および水残
量％よりなる組成物であって、そのｐＨが５〜８のアス
ファルト乳剤が提案されている。前記トール油類につい
ては、パルプのアルカリ蒸化液を中和した溶液から得ら
れるロジンや脂肪酸石鹸を回収し、これから遊離のロジ
ンや脂肪酸成分を回収して得られたトール油であり、と
くにロジン酸を１０〜３０重量％含有するものが好まし
いとされている。しかし、この発明は確かにアスファル
トと骨材との剥離性を抑えるうえでは有効であるが、施
工後道路が使用可能な強度を持つに至るまでに４〜７日
を要するというものである。[0004] In order to prevent such peeling of asphalt and aggregate, US Pat. No. 3,867,162 discloses 50 to 80% by weight of asphalt, 0.05 to 2.0% by weight of cationic emulsifier, and 0 to 0% of acid. An asphalt emulsion having a pH of 5 to 8 which is a composition comprising 0.5% by weight, 0.25 to 3% by weight of an anti-stripping agent composed of tall oils and the remaining amount of water is proposed. The tall oil is a tall oil obtained by collecting a rosin and a fatty acid soap obtained from a solution obtained by neutralizing an alkaline vaporized pulp solution, and then collecting a free rosin and a fatty acid component. It is said that those containing 10 to 30% by weight of an acid are preferable. However, although this invention is certainly effective in suppressing the releasability between asphalt and aggregate, it takes 4 to 7 days for the road to have usable strength after construction.
【０００５】特公昭５６−４５８８号公報記載の技術
は、剥離防止剤としてアルキル基の炭素数が１１〜１７
の飽和脂肪酸を０．５〜３．０％含有するアスファルト
乳剤の製法について記載されており、実施例では前記飽
和脂肪酸としてステアリン酸が用いられている。しかし
ながらこの発明においてもアスファルトの養生期間は３
〜７日を必要としている。The technique described in Japanese Patent Publication No. 56-4588 discloses an anti-stripping agent in which the alkyl group has 11 to 17 carbon atoms.
A method for producing an asphalt emulsion containing 0.5 to 3.0% of a saturated fatty acid is described. In Examples, stearic acid is used as the saturated fatty acid. However, in this invention, the curing period of asphalt is 3
Needs ~ 7 days.
【０００６】また、アスファルト乳剤の乳化安定性を与
えるため、脂肪族ポリアミンのスルファミン酸塩または
ジメチル硫酸塩を使用する技術が特公昭４９−６１７４
号公報に、脂肪族ジアミンと脂肪酸を併用する技術が、
また、モノアミンまたはポリアミンと飽和または不飽和
のカルボン酸とを併用する技術が特開昭５９−１２３５
２３号公報にそれぞれ開示されているが、アミン系材料
はアスファルト乳剤の製造過程中などにおいて高温にさ
らされたとき、アンモニア臭を含む悪臭を発生したり、
場合によっては装置を腐食したり、爆発の危険が生じた
りする。Further, in order to provide emulsion stability of an asphalt emulsion, a technique using an aliphatic polyamine sulfamate or dimethyl sulfate is disclosed in Japanese Patent Publication No. 49-6174.
In the publication, technology of using aliphatic diamine and fatty acid together,
Further, a technique in which a monoamine or a polyamine is used in combination with a saturated or unsaturated carboxylic acid is disclosed in JP-A-59-1235.
No. 23, respectively, when the amine-based material is exposed to high temperatures, such as during the production process of asphalt emulsion, or emits a malodor including ammonia odor,
In some cases, this may corrode the equipment or cause explosion.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、アス
ファルト乳剤を用いて舗装作業を行った時、施工後少な
くとも３時間以内に硬化が完了するため、工事による交
通遮断時間や作業時間を大幅に短縮することができると
ともに、アスファルトと骨材との接着性にも優れた新規
なアスファルト乳剤を提供する点にある。SUMMARY OF THE INVENTION It is an object of the present invention to reduce the traffic cutoff time and work time due to construction work, since the hardening is completed within at least 3 hours after construction when paving work is performed using asphalt emulsion. Another object of the present invention is to provide a novel asphalt emulsion which can be shortened to a minimum and has excellent adhesion between asphalt and an aggregate.
【０００８】[0008]
【課題を解決するための手段】本発明者らは、アスファ
ルト乳剤の貯蔵安定性を損なうことなく、硬化時間を短
縮するため、アスファルト乳剤に関する研究を進めた結
果、アスファルトを乳化する際にベースアルファルトに
酸価５０〜３００、よう素価５〜２００のトール油脂肪
酸もしくはトール油誘導体を添加配合すると、製造され
た水中油滴型アスファルト乳剤のアスファルト粒子表面
の極性を向上させ、骨材付着性、貯蔵安定性さらには硬
化時間（分解時間）調整性に優れた物性を有するアスフ
ァルト乳剤が得られたことを見出し、本発明を完成する
に至った。Means for Solving the Problems The present inventors have conducted research on asphalt emulsions in order to shorten the hardening time without impairing the storage stability of the asphalt emulsions. When a tall oil fatty acid or a tall oil derivative having an acid value of 50 to 300 and an iodine value of 5 to 200 is added to the mixture, the polarity of the surface of the asphalt particles of the produced oil-in-water asphalt emulsion is improved, and the aggregate adhesion is improved. It was found that an asphalt emulsion having physical properties excellent in storage stability and controllability of curing time (decomposition time) was obtained, and the present invention was completed.
【０００９】すなわち、本発明は、アスファルト４０〜
８０重量部、好ましくは５０〜７０重量部、水６０〜２
０重量部、好ましくは５０〜３０重量部、界面活性剤
０．０１〜１０．０重量部、好ましくは１．５〜６．０
重量部および酸価５０〜３００、よう素価５〜２００の
トール油脂肪酸および／またはトール油誘導体よりなる
性能改善剤０．０１〜５．０重量部、好ましくは０．１
〜２．０重量部を含有することを特徴とするアスファル
ト乳剤に関する。That is, the present invention relates to an asphalt 40-
80 parts by weight, preferably 50 to 70 parts by weight, water 60 to 2
0 parts by weight, preferably 50 to 30 parts by weight, 0.01 to 10.0 parts by weight of a surfactant, preferably 1.5 to 6.0 parts by weight.
Parts by weight and 0.01 to 5.0 parts by weight, preferably 0.1 parts by weight, of a performance improver comprising a tall oil fatty acid and / or a tall oil derivative having an acid value of 50 to 300 and an iodine value of 5 to 200.
To 2.0 parts by weight of an asphalt emulsion.
【００１０】前記トール油脂肪酸やトール油誘導体は、
よう素価が５〜２００、好ましくは１０〜１８０、さら
に好ましくは２０〜１５０であることが必要である。い
いかえればある程度の不飽和結合をもつことが必要であ
る。よう素価が５を下まわったものは、硬化時間の短縮
がほとんど不可能となり、よう素価が２００を上回るよ
うな場合には、硬化時間が短縮されすぎ、舗装作業に問
題を生ずる。性能改善剤の使用量が０．０１重量部を下
廻ると付着性もほとんど改善されず、また貯蔵安定性も
向上しない。また５重量部を上廻ると、作業可能時間が
短くなりすぎ、また相対的にアスファルト量が少なくな
るので、舗装材としての強度が低下し、さらにはコスト
高となる。[0010] The tall oil fatty acid and the tall oil derivative are
The iodine value needs to be 5 to 200, preferably 10 to 180, and more preferably 20 to 150. In other words, it is necessary to have a certain degree of unsaturated bond. When the iodine value is less than 5, it is almost impossible to shorten the curing time. When the iodine value is more than 200, the curing time is too short, which causes a problem in pavement work. If the amount of the performance improver is less than 0.01 part by weight, the adhesion is hardly improved, and the storage stability is not improved. If the amount exceeds 5 parts by weight, the operable time becomes too short and the amount of asphalt becomes relatively small, so that the strength as a pavement material decreases and the cost increases.
【００１１】前記トール油脂肪酸もしくはトール油誘導
体は、硫酸塩パルプやソーダパルプ製造の廃液から得ら
れる樹脂酸や脂肪酸などからなる油状副産物などから製
造することができる。具体例は以下に列挙するが、これ
らのうちから酸価が５０〜３００、よう素価が５〜２０
０のものを選択する必要がある。The above-mentioned tall oil fatty acid or tall oil derivative can be produced from oily by-products such as resin acids and fatty acids obtained from waste liquor of sulfate pulp and soda pulp. Specific examples are listed below. Among them, the acid value is 50 to 300, and the iodine value is 5 to 20.
It is necessary to select 0.
【００１２】前記樹脂酸としては、（１）脂肪族：アビ
エチン酸（ロジン中）、ネオアビエチン酸（ロジン
中）、ｄ−ピマル酸（ロジン中）、イソ−ｄ−ピマル酸
（ロジン中）、ポドカルプ酸（Ｐｏｄｏｃａｒｐｕｓｃ
ｕｐｒｅｓｓｉｎｕｓの脂肪中）、アガテンジカルボン
酸（コーパル樹脂中）など、（２）芳香族：安息香酸
（安息香、キリンケツ中）、ケイ皮酸（トルーバルサ
ム、ペルーバルサム、安息香、ソゴウ香、アカロイド樹
脂中）、ｐ−オキシケイ皮酸（アカロイド樹脂中）な
ど、が挙げられる。The resin acids include (1) aliphatics: abietic acid (in rosin), neoabietic acid (in rosin), d-pimaric acid (in rosin), iso-d-pimaric acid (in rosin), Podocarpusic acid
(2) Aromatics: benzoic acid (in benzoic acid, giraffe), cinnamic acid (in balsam, peruvian balsam, benzoic acid, sogo scent, in akaloid resin) ), P-oxycinnamic acid (in the akaloid resin), and the like.
【００１３】トール油脂肪酸としては、不飽和脂肪酸で
あるオレイン酸、リノール酸、リノレン酸などが挙げら
れるが、これに併用して、飽和脂肪酸としてミリスチン
酸、パルチミン酸、ステアリン酸なども使用できる。Examples of the tall oil fatty acid include unsaturated fatty acids such as oleic acid, linoleic acid and linolenic acid, and in combination therewith, myristic acid, palmitic acid, stearic acid and the like can also be used as saturated fatty acids.
【００１４】また、トール油誘導体としては、例えば炭
素数３６のダイマー酸、ヒドロキシ脂肪酸、ヒドロキシ
脂肪酸エステル、炭素数４５のダイマー酸などが挙げら
れる。Examples of the tall oil derivative include dimer acids having 36 carbon atoms, hydroxy fatty acids, hydroxy fatty acid esters, and dimer acids having 45 carbon atoms.
【００１５】前記アスファルトは、アスファルト乳剤と
して使用できるアスファルトであればとくに制限はない
が、乳化性がよく、用途の条件に適用するものを選択使
用することが好ましい。通常はＪＩＳ Ｋ ２２０７に
規定されているストレートアスファルトを使用する。The asphalt is not particularly limited as long as it can be used as an asphalt emulsion, but it is preferable to select and use one having good emulsifiability and applicable to the conditions of use. Normally, straight asphalt specified in JIS K 2207 is used.
【００１６】前記界面活性剤としては、カチオン系乳
剤、アニオン系乳剤、非イオン系乳剤、両性乳剤が使用
できるが、通常アニオン系またはカチオン系のものが用
いられる。カチオン系乳化剤としては、脂肪族ジアミン
塩、第４級アンモニウム塩などを例示することができ、
アニオン系乳化剤としては、石鹸、硫酸化油、高級アル
コール硫酸エステル塩、脂肪族スルホン化物、アルキル
アリルスルホン酸などを挙げることができる。As the surfactant, cationic emulsions, anionic emulsions, nonionic emulsions and amphoteric emulsions can be used, and usually, anionic or cationic emulsions are used. Examples of the cationic emulsifier include an aliphatic diamine salt and a quaternary ammonium salt.
Examples of the anionic emulsifier include soap, sulfated oil, higher alcohol sulfate, aliphatic sulfonate, and alkylallylsulfonic acid.
【００１７】界面活性剤のほかに乳化安定剤などを併用
することができ、例えばカゼイン、魚膠、ゼラチンなど
の親水性コロイドを挙げることができる。In addition to the surfactant, an emulsion stabilizer and the like can be used in combination, and examples thereof include hydrophilic colloids such as casein, fish glue and gelatin.
【００１８】[0018]
【実施例】以下に実施例、比較例を挙げて本発明を説明
するが、本発明はこれらの実施例により何等限定される
ものではない。The present invention will be described below with reference to examples and comparative examples, but the present invention is not limited to these examples.
【００１９】実施例１〜４ 針入度６０〜８０のストレートアスファルト１００重量
部を１６０℃に加熱溶融し、表１に示す４種類のトール
油脂肪酸および／またはトール油誘導体よりなる性能改
善剤０．３〜０．５重量部（個々の数値は表１中に記
載）を添加して溶解し、ベースアスファルトを調整し
た。一方、４０℃の温水８９重量部に界面活性剤（樹脂
酸とジメチルアミノプロピルアミンとのアマイド）７重
量部、８５重量％リン酸４重量部とを添加溶解して乳化
液を調整した。前記ベースアスファルト６５重量部と前
記乳化液３５重量部とを同時にコロイドミルに通し、ア
スファルト乳剤を調整した。得られたアスファルト乳剤
の性質を表２に示す。Examples 1 to 4 100 parts by weight of straight asphalt having a penetration of 60 to 80 were heated and melted at 160 ° C., and a performance improving agent comprising four kinds of tall oil fatty acids and / or tall oil derivatives shown in Table 1 was used. 0.3 to 0.5 parts by weight (individual numerical values are described in Table 1) were added and dissolved to prepare a base asphalt. On the other hand, an emulsion was prepared by adding and dissolving 7 parts by weight of a surfactant (an amide of resin acid and dimethylaminopropylamine) and 4 parts by weight of 85% by weight phosphoric acid in 89 parts by weight of warm water at 40 ° C. 65 parts by weight of the base asphalt and 35 parts by weight of the emulsion were simultaneously passed through a colloid mill to prepare an asphalt emulsion. Table 2 shows the properties of the obtained asphalt emulsion.
【００２０】比較例１ 実施例１〜４の性能改善剤のかわりにステアリン酸を用
い、実施例１〜４と同様にしてアスファルト乳剤を調整
した。ステアリン酸の使用量はアスファルト１００重量
部に対して０．５重量部を用いた（表１参照）。得られ
たアスファルト乳剤の性質を表２に示す。Comparative Example 1 Asphalt emulsions were prepared in the same manner as in Examples 1 to 4, except that stearic acid was used in place of the performance improvers of Examples 1 to 4. Stearic acid was used in an amount of 0.5 part by weight based on 100 parts by weight of asphalt (see Table 1). Table 2 shows the properties of the obtained asphalt emulsion.
【００２１】比較例２ 実施例１〜４および比較例１のような性能改善剤を使用
せず、実施例１〜４と同様にアスファルト乳剤を調整し
た。Comparative Example 2 Asphalt emulsions were prepared in the same manner as in Examples 1 to 4 without using the performance improvers as in Examples 1 to 4 and Comparative Example 1.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【表２】 （１） ＪＩＳ Ｋ ２２０８に規定される貯蔵安定度試験を６０℃で行い評 価した。 試料乳剤２５０ｇを２４時間放置した後、シリンダー上部と下部の乳 剤の蒸発残留分の差を百分率（％）で表わす。 （２） ＡＳＴＭ Ｄ ３９１０に規定されるウェット・トラック摩耗試験を 用いて評価した。 摩耗減量をｇ／ｍ2で表わす。[Table 2] (1) A storage stability test specified in JIS K 2208 was performed at 60 ° C. for evaluation. After allowing 250 g of the sample emulsion to stand for 24 hours, the difference between the evaporation residue of the emulsion at the top and the bottom of the cylinder is expressed in percentage (%). (2) Evaluated using a wet track abrasion test specified in ASTM D3910. The loss on wear is expressed in g / m 2 .
【００２４】表２に示すように本発明にかかる実施例１
〜４のアスファルト乳剤は、貯蔵安定性にすぐれている
うえ、ＡＳＴＭ Ｄ ３９１０に規定されたウェット・
トラック摩耗試験による硬質砂岩および石英斑岩に対す
る摩耗減量（ｇ／ｍ2）も比較例に較べて抜群の性能を
示す。すなわち剥離性が大幅に向上していることが分か
る。比較例１のステアリン酸も付着性能はそれなりに改
善効果が認められるが、貯蔵安定性が悪化するので、実
用的ではない。As shown in Table 2, Example 1 according to the present invention
The asphalt emulsions Nos. 1 to 4 have excellent storage stability, and have a wet-wet strength specified in ASTM D3910.
The wear loss (g / m 2 ) against hard sandstone and quartz porphyry by the track abrasion test also shows excellent performance as compared with the comparative example. That is, it can be seen that the releasability is greatly improved. The stearic acid of Comparative Example 1 has an effect of improving the adhesion performance to some extent, but is not practical because the storage stability deteriorates.
【００２５】実施例５〜７ 針入度６０〜８０のストレートアスファルト１００重量
部を１６０℃に加熱溶融し、表３に示す各種性能改善剤
を０．３重量部、０．５重量部、１．０重量部および
２．０重量部をそれぞれ添加溶解し、ベースアスファル
トを調整した。一方、４０℃の温水８９重量部に界面活
性剤（樹脂酸とジメチルアミノプロピルアミンとのアマ
イド）７重量部、８５重量％リン酸４重量部を添加、溶
解して乳化液を調整した。前記ベースアスファルト６５
重量部と前記乳化液３５重量部とを同時にコロイドミル
に通し、アスファルト乳剤を調整した。Examples 5 to 7 100 parts by weight of straight asphalt having a penetration of 60 to 80 were heated and melted at 160 ° C., and 0.3 parts by weight, 0.5 parts by weight and 1 part by weight of various performance improving agents shown in Table 3 were obtained. 2.0 parts by weight and 2.0 parts by weight were added and dissolved to prepare base asphalt. On the other hand, 7 parts by weight of a surfactant (an amide of resin acid and dimethylaminopropylamine) and 4 parts by weight of 85% by weight phosphoric acid were added to 89 parts by weight of warm water at 40 ° C. and dissolved to prepare an emulsion. The base asphalt 65
Part by weight and 35 parts by weight of the emulsion were simultaneously passed through a colloid mill to prepare an asphalt emulsion.
【００２６】この乳剤１１重量部を骨材１００重量部、
水１０重量部、ポルトランドセメント１重量部とを混合
し、混合可能時間を測定し、表３に示した。11 parts by weight of this emulsion were added to 100 parts by weight of aggregate,
10 parts by weight of water and 1 part by weight of Portland cement were mixed, and the mixing possible time was measured.
【００２７】表３から明らかなように、本発明の性能改
善剤はアスファルトへの添加量により混合可能時間を調
整することができるとともに従来の代表的な性能改善剤
であるステアリン酸に較べて抜群の作業性があることを
示している。As is apparent from Table 3, the performance improving agent of the present invention can adjust the mixing time by the amount added to asphalt and is outstanding as compared with stearic acid which is a typical conventional performance improving agent. Workability.
【００２８】[0028]
【表３】 （３） 混合可能時間とは、乳剤混合物をへらで撹拌可能な時間をいう。 これにより作業可能な時間を評価する。[Table 3] (3) Mixable time refers to the time during which the emulsion mixture can be stirred with a spatula. Thus, the workable time is evaluated.
【００２９】[0029]
【発明の効果】１． 水の介在によるアスファルト乳剤
と骨材の剥離を防止できる。 ２． 乳剤の安定性を向上させることができる。 ３． 乳剤の分解特性を調整することができる。 ４． 本発明のアスファルト乳剤を使用することによ
り、アスファルト舗装の常温化が可能であり、舗装に関
わるエネルギー消費量の削減など社会的影響も大きい。 ５． アスファルト舗装作業時間が大幅に短縮できる。Advantages of the Invention Separation of the asphalt emulsion and the aggregate due to the presence of water can be prevented. 2. The stability of the emulsion can be improved. 3. The decomposition characteristics of the emulsion can be adjusted. 4. By using the asphalt emulsion of the present invention, asphalt pavement can be cooled to normal temperature, and the social impact such as reduction of energy consumption related to pavement is great. 5. Asphalt pavement work time can be significantly reduced.
Claims (1)
〜２０重量部、界面活性剤０．０１〜１０．０重量部お
よび酸価５０〜３００、よう素価５〜２００のトール油
脂肪酸および／またはトール油誘導体よりなる性能改善
剤０．０１〜５．０重量部を含有することを特徴とする
アスファルト乳剤。1. Asphalt 40 to 80 parts by weight, water 60
To 20 parts by weight, 0.01 to 10.0 parts by weight of a surfactant and a performance improver consisting of a tall oil fatty acid and / or a tall oil derivative having an acid value of 50 to 300 and an iodine value of 5 to 200. An asphalt emulsion containing 0.0 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04863098A JP3957389B2 (en) | 1998-02-13 | 1998-02-13 | Asphalt emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04863098A JP3957389B2 (en) | 1998-02-13 | 1998-02-13 | Asphalt emulsion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11228839A true JPH11228839A (en) | 1999-08-24 |
| JP3957389B2 JP3957389B2 (en) | 2007-08-15 |
Family
ID=12808711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04863098A Expired - Fee Related JP3957389B2 (en) | 1998-02-13 | 1998-02-13 | Asphalt emulsion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3957389B2 (en) |
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| JP2010248472A (en) * | 2009-03-25 | 2010-11-04 | Maeda Road Constr Co Ltd | Hot asphalt mixture for normal temperature installation |
| JP2010536999A (en) * | 2007-08-23 | 2010-12-02 | イノフォス インコーポレーテッド | Asphalt emulsion priming composition and method of use |
| JP2011140784A (en) * | 2010-01-06 | 2011-07-21 | Maeda Road Constr Co Ltd | Asphalt finisher |
| WO2011086722A1 (en) * | 2010-01-12 | 2011-07-21 | 前田道路株式会社 | Ordinary-temperature application type hot-mix asphalt, process for production of same, and paving method using same |
| WO2015107762A1 (en) * | 2014-01-17 | 2015-07-23 | 前田道路株式会社 | Asphalt mixture, method for producing same and paving method using same |
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| JP2011140784A (en) * | 2010-01-06 | 2011-07-21 | Maeda Road Constr Co Ltd | Asphalt finisher |
| WO2011086722A1 (en) * | 2010-01-12 | 2011-07-21 | 前田道路株式会社 | Ordinary-temperature application type hot-mix asphalt, process for production of same, and paving method using same |
| WO2015107762A1 (en) * | 2014-01-17 | 2015-07-23 | 前田道路株式会社 | Asphalt mixture, method for producing same and paving method using same |
| US11787945B2 (en) | 2015-02-27 | 2023-10-17 | Cargill, Incorporated | Polymerized oils and methods of manufacturing the same |
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| JP6344873B1 (en) * | 2017-04-25 | 2018-06-20 | 大林道路株式会社 | High durability room temperature asphalt mixture |
| WO2021010053A1 (en) * | 2019-07-12 | 2021-01-21 | 富士フイルム株式会社 | Curing accelerator aqueous solution for asphalt, asphalt mixture, paving set, and paving method |
| JPWO2021010053A1 (en) * | 2019-07-12 | 2021-01-21 | ||
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