JPH01127704A - Scattering aid for high-viscosity asphalt - Google Patents
Scattering aid for high-viscosity asphaltInfo
- Publication number
- JPH01127704A JPH01127704A JP28483287A JP28483287A JPH01127704A JP H01127704 A JPH01127704 A JP H01127704A JP 28483287 A JP28483287 A JP 28483287A JP 28483287 A JP28483287 A JP 28483287A JP H01127704 A JPH01127704 A JP H01127704A
- Authority
- JP
- Japan
- Prior art keywords
- asphalt
- resin
- viscosity asphalt
- viscosity
- high viscosity
- 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.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 12
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 12
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012190 activator Substances 0.000 claims abstract description 11
- 150000005690 diesters Chemical class 0.000 claims abstract description 10
- 239000003208 petroleum Substances 0.000 claims abstract description 8
- 150000001450 anions Chemical class 0.000 claims abstract description 5
- 239000000839 emulsion Substances 0.000 claims abstract description 5
- 125000000129 anionic group Chemical group 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 150000002148 esters Chemical group 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- KPAPHODVWOVUJL-UHFFFAOYSA-N 1-benzofuran;1h-indene Chemical compound C1=CC=C2CC=CC2=C1.C1=CC=C2OC=CC2=C1 KPAPHODVWOVUJL-UHFFFAOYSA-N 0.000 abstract 2
- 239000012752 auxiliary agent Substances 0.000 abstract 2
- 239000005011 phenolic resin Substances 0.000 abstract 2
- 244000309464 bull Species 0.000 abstract 1
- 238000005187 foaming Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
- Detergent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
この発明は、高粘度アスファルト用散布助剤に関するも
のである。さらに詳しくは、この発明は、発泡かさ倍率
が大きく、残留水分が少ない高粘度アスファルト用散布
助剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) This invention relates to a spreading aid for high viscosity asphalt. More specifically, the present invention relates to a spreading aid for high viscosity asphalt that has a high expansion bulk ratio and low residual moisture.
（背景技術）
従来より、道路用アスファルトを散布したり、骨材と混
合する場合には、１５０〜１７０℃程度の温度に加熱し
、セイボルト・フロール粘度を８０〜１５０秒程度に調
整して散布時に霜化し、また骨材に対する濡れ性を改善
するなどの方法が採用されてきている。(Background technology) Conventionally, when spreading asphalt for roads or mixing it with aggregate, it is heated to a temperature of about 150 to 170 degrees Celsius, and the Saybolt-Flow viscosity is adjusted to about 80 to 150 seconds before spreading. Methods such as sometimes frosting and improving the wettability of aggregates have been adopted.
また、針入度が１０／２０．２０／３０．４０／６０な
どの高粘度アスファルトを散布したり、あるいは特に粒
度の小さな骨材と混合するような場合には、１８０℃以
上の高温に保って散布することも行われてきている。In addition, when distributing high viscosity asphalt with a penetration degree of 10/20.20/30.40/60, or when mixing with especially small aggregate, the temperature must be kept at a high temperature of 180℃ or higher. Spraying has also been carried out.
しかしながら、高粘度アスファルトにおいてこのような
高温度に加熱することは、アスファルトの熱劣化の原因
となることから、より低い加熱温度において低粘度化し
て、散布性や骨材に対する濡れ性を改善することが必要
とされてきた。However, heating high-viscosity asphalt to such high temperatures causes thermal deterioration of the asphalt, so it is recommended to reduce the viscosity at a lower heating temperature to improve dispersibility and wettability with aggregate. has been needed.
この高粘度アスファルトの場合だけでなく、低粘度アス
ファルトの場合にも、−時的に低粘度化を図り、作業性
を改善する方法は、これまでにも試みられてきており、
いくつかのらのは実際に行われてきてもいる。実用的に
は、たとえば、重油、軽油、灯油などの油分を加え、粘
度を下げて安定化する方法、シリコーン油を加え、アス
ファルトの滑性を改善する方法、１５０〜１７０℃に加
熱したアスファルトに水を加え、−時的に発泡させるこ
とで低粘度化し、水の蒸発を待って安定化さきる方法な
どが知られている。Not only in the case of high-viscosity asphalt, but also in the case of low-viscosity asphalt, methods have been attempted to temporarily lower the viscosity and improve workability.
Some of these have actually been carried out. Practical methods include adding oil such as heavy oil, light oil, or kerosene to lower and stabilize the viscosity, adding silicone oil to improve the slipperiness of asphalt, and adding oil to asphalt heated to 150 to 170°C. A known method is to lower the viscosity by adding water and foaming for a period of time, and then wait for the water to evaporate before stabilizing.
しかしながら、これらの従来法にはいくつかの問題点が
あった。軽質油などの油分を使用する場合には蒸発物の
臭気や、大気への拡散、または引火などの危険性があり
、添加量がかなり多くなり、早期の安定化が難しい、シ
リコーン油の場合には添加量は極く微量でよいが、アス
ファル１〜に残存するため、特に、舗装表面にブリージ
ング（浮き出し）する傾向があり、軟化し、剥離が生じ
るなどの欠点がある。However, these conventional methods have several problems. When using oils such as light oils, there is a risk of evaporative odor, diffusion into the atmosphere, or ignition, and the amount added is quite large, making early stabilization difficult.In the case of silicone oils, Although it may be added in a very small amount, since it remains in the asphalt 1~, there is a tendency for it to breathe on the pavement surface, causing softening and peeling.
また、水を加えるフォームド・アスファルトは最も簡便
な低粘度化の方法であるが、加熱乾燥した骨材に水滴が
残存し、アスファルトが骨材から剥離しやすい欠点があ
る。また、発泡の残存時間が短く、逆にアスファルトの
温度を低下させる危険がある。In addition, foamed asphalt by adding water is the simplest method for lowering the viscosity, but it has the disadvantage that water droplets remain in the heat-dried aggregate, making it easy for the asphalt to separate from the aggregate. In addition, the remaining time of foaming is short, and there is a risk of lowering the temperature of the asphalt.
このため、これら従来の方法に代わるものとして、たと
えば、２００℃の温度で１４００〜２０００ｃｐｓの粘
度を示す高粘度アスファルトを、熱劣化を防、ぐ２００
℃以下の温度において散布性、安定性、濡れ性を改善す
る新しい方法の実現が望まれていた。Therefore, as an alternative to these conventional methods, for example, high viscosity asphalt having a viscosity of 1,400 to 2,000 cps at a temperature of 200°C can be used to prevent thermal deterioration.
It has been desired to develop a new method to improve dispersibility, stability, and wettability at temperatures below °C.
（発明の目的）
この発明は、以上の通りの事情に鑑みてなされたちので
あり、従来方法の欠点を改善し、アスファルトの熱劣化
をもたらすことなく、高粘度アスファルトの低粘度化に
よる散布性、骨材に対する濡れ性、安定性等を向上させ
る新しい方法を提供することを目的としている。(Objective of the Invention) This invention has been made in view of the above circumstances, and improves the shortcomings of the conventional method and improves the dispersibility of high-viscosity asphalt by reducing the viscosity, without causing thermal deterioration of asphalt. The aim is to provide a new method for improving the wettability and stability of aggregates.
さらに詳しくは、この発明は、従来の方法に用いられて
いる添加成分に代わる新しい高粘度アスファルト用散布
助剤を提供することを目的としている。More specifically, the present invention aims to provide a new high viscosity asphalt spreading aid to replace the additive components used in conventional methods.
（発明の開示）
この発明の高粘度アスファルト用散布助剤は、上記の目
的を実現するために、天然ロジン、０５〜Ｃ９系石油樹
脂、アルキルフェノール樹脂およびクマロン−インデン
樹脂のうちの１種または２種以上と、ジエステル型の非
イオン性アニオン活性剤とを含有する水性エマルジョン
からなることを特徴としている。(Disclosure of the Invention) In order to achieve the above object, the high viscosity asphalt spreading aid of the present invention is made of one or two of natural rosin, 05-C9 petroleum resin, alkylphenol resin and coumaron-indene resin. It is characterized in that it consists of an aqueous emulsion containing a diester-type nonionic anionic activator and a diester-type nonionic anionic activator.
天然ロジン、０５〜Ｃ９系・石油樹脂、アルキルフェノ
ール樹脂、およびクマロン−インデン樹脂の１種または
２種以上の組成成分については、４５〜５０重量％を、
ジエステル型の非イオン性アニオン活性剤は、０．１〜
０．５％水溶液によって浮化したエマルジョンを用いる
。For one or more composition components of natural rosin, 05-C9 petroleum resin, alkylphenol resin, and coumaron-indene resin, 45-50% by weight,
The diester type nonionic anion activator is 0.1 to
An emulsion floated with a 0.5% aqueous solution is used.
天然ロジンの場合には、軟１ヒ点７０〜７５°Ｃ１酸価
７以上のものを用いるのが好ましい、また、ジエステル
型非イオン性アニオン活性剤としては、ジエステル・エ
ーテル型の
ＲＯ（Ｃ１１２ＣＩ−（２０）。＼ １０（ｎユ１〜３
、ＲはＣ８〜Ｃ１ｏアルキル基を示す）で示されるリン
酸ジエステルなどが用いられる。In the case of natural rosin, it is preferable to use one with a soft point of 70 to 75°C and an acid value of 7 or more.As the diester type nonionic anion activator, diester/ether type RO (C112CI- (20).\10(nyu1~3
, R represents a C8-C1o alkyl group), etc. are used.
より具体的には、たとえば次のような組成からなるもの
が例示される。More specifically, examples include those having the following composition.
・天然ロジン ４５〜５０重景％（重量５０
０ｃｐｓ以下（２０℃） 、ｐＨ８，５〜９．５）・ジ
エステル型非イオン性アニオン活性剤０．１〜０．５重
量％
・水 ５０〜５５重量％たとえば、
このような組成からなる高粘度アスファルト用散布助剤
は、天然ロジン、Ｃ５〜Ｃ９系石油樹脂、アルキルフェ
ノール樹脂、およびクマロン−インデン樹脂のうちの１
種または２種以上のものを１００〜１２０℃に加熱溶融
し、６０〜８０℃の温度に加温して活性剤を溶解した水
を、たとえば１５００〜２０００ｒｐｌで回転する高速
撹拌機により混合することにより！ｌ！ｉ！ ｍするこ
とができる。・Natural rosin 45-50% (weight 50%)
0 cps or less (20°C), pH 8.5 to 9.5) Diester type nonionic anionic activator 0.1 to 0.5% by weight Water 50 to 55% by weight For example,
The high-viscosity asphalt spreading aid having such a composition is one of natural rosin, C5-C9 petroleum resin, alkylphenol resin, and coumaron-indene resin.
The seeds or two or more species are heated and melted at 100 to 120°C, and water in which the active agent is dissolved by heating to a temperature of 60 to 80°C is mixed using a high-speed stirrer rotating at, for example, 1500 to 2000 rpm. By! l! i! m can do.
この発明の散布助剤は、各種のアスファルトに対して用
いることができる。たとえば、天然ゴム、ブタジェン−
スチレンゴム、タロロプレンゴム、ブタジェンゴム、ブ
タジェン−アクリロニトリルゴム等を加硫後、道路用ア
スファルトに溶解した高粘度アスファルトなどに用いる
ことができる。The spreading aid of this invention can be used for various types of asphalt. For example, natural rubber, butadiene
After vulcanization of styrene rubber, taloloprene rubber, butadiene rubber, butadiene-acrylonitrile rubber, etc., it can be used for high viscosity asphalt, which is dissolved in road asphalt.
散布助剤の天然ロジン、石油樹脂、アルキルフェノール
樹脂、クマロン−インデン樹脂の分子構造がゴムの主成
分であるイソグレンの骨格とのなじみが良く、高粘度ア
スファルトの低粘度化とともに、安定性も良好なものと
なる。The molecular structure of the natural rosin, petroleum resin, alkylphenol resin, and coumaron-indene resin used as spreading aids is compatible with the isogrene skeleton, which is the main component of rubber, and it reduces the viscosity of high-viscosity asphalt and has good stability. Become something.
この発明の散布助剤の添加によって、高粘度アスファル
トは発泡し、しかも、発泡かさ倍率は大きなものとなる
。残留水分が少ないので、散布後のアスファルトの剥離
は抑制される。By adding the spreading aid of this invention, high viscosity asphalt is foamed and the foaming bulk ratio becomes large. Since there is little residual moisture, peeling of asphalt after spraying is suppressed.
高粘度アスファルトへの添加は、アスファルト温度１８
０℃前後で、散布圧１〜４ｋｇ／−程度の条ｒトで路面
等に散布することができる。Addition to high viscosity asphalt requires asphalt temperature 18
It can be sprayed onto road surfaces etc. at a temperature of around 0°C and at a spraying pressure of about 1 to 4 kg/-.
次にこの発明の実施例を示し、さらに詳しくこの発明に
ついて説明する。もちろん、この発明は、以下の実施例
によって限定されるものではない。Next, examples of the present invention will be shown and the present invention will be explained in more detail. Of course, the invention is not limited to the following examples.
実施例 １
天然ロジン ４８重量％（粘度４５０
〜４６０ Ｃ１）Ｓ（２０℃） 、１）１１８．５〜９
．５）ジエステル型非イオン性アニオン活性剤０．５重
量％
水 ５１，５重
量％の組成からなる散布助剤を、１８０℃に加熱した高
粘度アスファルトに、混合比２１５０に混合した。。Example 1 Natural rosin 48% by weight (viscosity 450
~460 C1) S (20°C), 1) 118.5 ~ 9
．． 5) A spreading aid having a composition of 0.5% by weight of diester type nonionic anionic activator and 51.5% by weight of water was mixed into high viscosity asphalt heated to 180° C. at a mixing ratio of 2150. .
添加した瞬間アスファルトが発泡し、かさが拡大した０
発泡かさ倍率は９．８、常温にもどったアスファルトの
残留水分は２２％であった。The moment the asphalt was added, it foamed and the bulk expanded.
The foaming bulk ratio was 9.8, and the residual moisture of the asphalt after returning to room temperature was 22%.
表１に、従来の助剤との比較を示したように、この発明
の散布助剤の場合には、発泡かさ倍率が大きく、しかも
アスファルトへの残留水分は極めて小さな割合となる。As shown in Table 1 in comparison with conventional aids, the spreading aid of the present invention has a large foaming bulk ratio, and the proportion of residual moisture in the asphalt is extremely small.
実施例 ２
高粘度アスファルトの温度を１６０℃、１８０°Ｃ１２
００℃に変化させて、実施例１と同様にして発泡かさ倍
率と残留水分を評価した。Example 2 The temperature of high viscosity asphalt was set at 160°C and 180°C12
The temperature was changed to 00°C, and the foaming bulk ratio and residual moisture were evaluated in the same manner as in Example 1.
比較のために、湯を用いた場合についても評価した０表
２にその結果を示した。For comparison, the results were also shown in Table 2 where hot water was used.
この表２から明らかなように、この発明の散布助剤の場
合には、残留水分が少なく、路面等に１寸着した時、界
面剥離の発生は抑制される。As is clear from Table 2, in the case of the dispersion aid of the present invention, residual moisture is small, and the occurrence of interfacial peeling is suppressed when the dispersion aid reaches the road surface by an inch.
なお、発泡後の高粘度アスファルトは、５〜１０秒間で
泡立ちが消え、散布後の路面等との密着は良好である。In addition, the foaming of the high-viscosity asphalt after foaming disappears in 5 to 10 seconds, and the adhesion to the road surface etc. after being spread is good.
実施例 ３
実権例１に用いた活性剤の使用量を変えて同様にしてＪ
？！泡倍率および残留水分について評価した。Example 3 J
? ! The foam magnification and residual moisture were evaluated.
その結果を表３に示した。使用量０％の場合の比教例と
の対比から明らかなように、この発明の散布助剤の残留
水分は著しく少ない、１．２％濃度でかさ倍率は最大と
なる。高濃度はど残留水分は減少する。The results are shown in Table 3. As is clear from the comparison with the comparative example in which the amount used is 0%, the residual moisture content of the dispersion aid of the present invention is extremely small, and the bulk factor reaches its maximum at a concentration of 1.2%. At high concentrations, residual moisture decreases.
実施例４
アスファルトに対する散布助剤の添加麓を変えて、発泡
かさ倍率と残留水分について評価した。Example 4 The foaming bulk ratio and residual moisture were evaluated by changing the amount of the spreading aid added to the asphalt.
その結果を示したものが表４である。Table 4 shows the results.
散布助剤／アスファルト比が１．５１５０〜２７５０程
度の範囲が発泡かさ倍率も大きく、かつ、残留水分も少
ない、好適な混合範囲である。A range in which the spreading aid/asphalt ratio is approximately 1.5150 to 2750 is a suitable mixing range in which the foaming bulk ratio is high and residual moisture is low.
（発明の効果）
この発明により、以上詳しく説明したように、発泡か、
さ倍率が大きく、残留水分の少ない低粘度化した高粘度
アスファルトが実現される。(Effects of the invention) With this invention, as explained in detail above, foaming,
A high-viscosity asphalt with a large expansion ratio and low viscosity with little residual moisture can be achieved.
散布性、骨材に対する濡れ性、貯蔵性の良好な、安定散
布助剤が実現される。A stable dispersion aid with good dispersibility, wettability to aggregate, and storage property is realized.
また、散布後の剥離も抑制される。Moreover, peeling after spraying is also suppressed.
Claims (5)
ルフェノール樹脂およびクマロン−インデン樹脂のうち
の１種または２種以上と、ジエステル型の非イオン性ア
ニオン活性剤とを含有する水性エマルジョンからなるこ
とを特徴とする高粘度アスファルト用散布助剤。(1) Consisting of an aqueous emulsion containing one or more of natural rosin, C_5-C_9 petroleum resin, alkylphenol resin, and coumaron-indene resin, and a diester type nonionic anionic activator. Dispersing aid for high viscosity asphalt.
ルフェノール樹脂およびクマロン−インデン樹脂のうち
の１種または２種以上を４５〜５０％含有する特許請求
の範囲第（１）項記載の高粘度アスファルト用散布助剤
。(2) High viscosity asphalt according to claim (1), containing 45 to 50% of one or more of natural rosin, C_5 to C_9 petroleum resin, alkylphenol resin, and coumaron-indene resin. Spreading aid.
含有する特許請求の範囲第（１）項記載の高粘度アスフ
ァルト用散布助剤。(3) The spreading aid for high viscosity asphalt according to claim (1), which contains a natural rosin having a softening point of 70 to 75°C and an acid value of 7 or more.
〜０．５％水溶液によつて浮化した特許請求の範囲第（
１）項記載の高粘度アスファルト用散布助剤。(4) 0.1 of diester type nonionic anion activator
~0.5% aqueous solution floats Claim No. (
Spreading aid for high viscosity asphalt as described in section 1).
項記載の高粘度アスファルト用散布助剤。(5) Claim No. 1 in which the diester type nonionic anionic activator is an ester represented by the formula ▲There are mathematical formulas, chemical formulas, tables, etc.▼
Spreading aid for high viscosity asphalt as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28483287A JPH01127704A (en) | 1987-11-11 | 1987-11-11 | Scattering aid for high-viscosity asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28483287A JPH01127704A (en) | 1987-11-11 | 1987-11-11 | Scattering aid for high-viscosity asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127704A true JPH01127704A (en) | 1989-05-19 |
Family
ID=17683587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28483287A Pending JPH01127704A (en) | 1987-11-11 | 1987-11-11 | Scattering aid for high-viscosity asphalt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127704A (en) |
-
1987
- 1987-11-11 JP JP28483287A patent/JPH01127704A/en active Pending
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