KR20080048232A - Modified asphalt binder composition and preparation method thereof - Google Patents
Modified asphalt binder composition and preparation method thereof Download PDFInfo
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- KR20080048232A KR20080048232A KR1020060118361A KR20060118361A KR20080048232A KR 20080048232 A KR20080048232 A KR 20080048232A KR 1020060118361 A KR1020060118361 A KR 1020060118361A KR 20060118361 A KR20060118361 A KR 20060118361A KR 20080048232 A KR20080048232 A KR 20080048232A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 71
- 239000011230 binding agent Substances 0.000 title claims abstract description 49
- 239000000203 mixture Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title 1
- 239000004698 Polyethylene Substances 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000010920 waste tyre Substances 0.000 claims abstract description 19
- -1 polyethylene Polymers 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 239000002245 particle Substances 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 11
- 238000005245 sintering Methods 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
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- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- C08L2201/02—Flame or fire retardant/resistant
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/30—Environmental or health characteristics, e.g. energy consumption, recycling or safety issues
- C08L2555/34—Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag
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- C08L2555/00—Characteristics of bituminous mixtures
- C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
- C08L2555/80—Macromolecular constituents
- C08L2555/86—Polymers containing aliphatic hydrocarbons only, e.g. polyethylene, polypropylene or ethylene-propylene-diene copolymers
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Abstract
Description
도1은 본 발명에 따른 개질아스팔트 바인더의 예로서 습식배합공정 개략도. 1 is a schematic diagram of a wet blending process as an example of a modified asphalt binder in accordance with the present invention.
도2는 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 단기노화전 상태에서의 동적전단유동기 실험결과를 나타낸 그래프도.Figure 2 is a graph showing the results of a dynamic shear fluidizer experiment in the state of short-age aging of the conventional modified asphalt binder and asphalt binder according to the present invention.
도3은 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 단기노화후 상태에서의 동적전단유동기 실험결과를 나타낸 그래프도.Figure 3 is a graph showing the results of a dynamic shear fluidizer experiment in a state after short-term aging of the conventional modified asphalt binder and asphalt binder according to the present invention.
도4는 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 처짐보 유동기 실험결과를 나타낸 그래프도.Figure 4 is a graph showing the deflection beam experiment results of the conventional modified asphalt binder and asphalt binder according to the present invention.
도5는 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 135℃ 회전점도 실험결과를 나타낸 그래프도.Figure 5 is a graph showing the 135 ° C rotational viscosity test results of the conventional modified asphalt binder and asphalt binder according to the present invention.
본 발명은 개질아스팔트 바인더 제조에 관한 것으로서, 더욱 상세하게는 베 이스아스팔트(Base Asphalt)에 폐타이어 고무분말(120mesh)과 PE(Polyethylene) Wax를 첨가하여 균일상으로 분산하여 제조된 개질아스팔트 바인더로서, 밀입도 아스팔트 콘크리트 포장과 배수성 아스팔트 콘크리트 포장에 적용이 가능하고, 기존 개질아스팔트 바인더에 비해 워커빌리티(Workability)가 우수하고, 고온에서의 소성변형 저항성과 저온에서의 균열저항성이 우수하여 시공품질을 향상시키고 포장의 수명을 현격히 증대시킬 수 있는 개질 아스팔트 바인더 조성물 및 그의 제조방법에 관한 것이다. The present invention relates to the manufacture of modified asphalt binder, and more particularly, to modified asphalt binder prepared by dispersing in a uniform phase by adding waste tire rubber powder (120 mesh) and PE (Polyethylene) Wax to the base asphalt. It can be applied to pavement asphalt pavement and drainage asphalt pavement, and has better workability than existing modified asphalt binders, and improves construction quality by excellent plastic deformation resistance at high temperature and crack resistance at low temperature. The present invention relates to a modified asphalt binder composition and a method for producing the same, which can significantly increase the life of the pavement.
일반적으로, 아스팔트 콘크리트 포장도로의 소성변형 저항성을 강화시키기 위해 개질 아스팔트 바인더를 이용한 포장도로가 적용되고 있으나, 기존 개질아스팔트 바인더의 현장 적용시 워커빌리티 문제 때문에 높은 시공온도를 요구하여 품질관리에 어려운 측면이 있으며, 또한 요구되는 시공온도를 만족시키지 못할 경우 품질의 저하로 조기파손이 발생하는 문제점이 있었다. In general, pavement roads using modified asphalt binders have been applied to enhance plastic deformation resistance of asphalt concrete pavement roads.However, in the field application of existing modified asphalt binders, high construction temperatures are required due to workability problems. In addition, there is a problem that premature failure occurs due to deterioration of quality when the required construction temperature is not satisfied.
따라서, 본 발명은 상기의 제반 문제점을 해결하기 위하여 제안된 것으로서, 베이스 아스팔트(Base Asphalt)에 폐타이어 고무분말(120mesh)과 폴리에틸렌 왁스(PE Wax)를 첨가하여 고온에서의 소성변형 저항성, 저온에서의 균열저항성을 향상시키면서, 또한 시공온도에서 아스팔트 혼합물의 워커빌리티를 개선하여 시공품질을 향상시킬 수 있는 개질아스팔트 바인더 조성물 및 그의 제조방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been proposed to solve the above problems, by adding a waste tire rubber powder (120 mesh) and polyethylene wax (PE Wax) to the base asphalt (Base Asphalt), resistance to plastic deformation at high temperatures, at low temperatures It is an object of the present invention to provide a modified asphalt binder composition and a method for producing the same, which can improve the quality of construction by improving the workability of the asphalt mixture at the construction temperature while improving the crack resistance of the same.
상기 목적을 달성하기 위하여 본 발명은, 베이스아스팔트(Base Asphalt) 82 ∼ 89중량%에, 폐타이어 고무분말(120mesh) 10~15 중량%, 폴리에틸렌 왁스 (Polyethylene Wax) 1~3 중량%를 첨가하여 균일상으로 분산하여 제조된 개질아스팔트 바인더 조성물을 제공한다.In order to achieve the above object, the present invention, by adding 82 to 89% by weight of the base asphalt, 10-15% by weight of the waste tire rubber powder (120 mesh), 1 to 3% by weight of polyethylene wax (Polyethylene Wax) It provides a modified asphalt binder composition prepared by dispersing in a uniform phase.
또한, 본 발명은 150±2℃에서 가열된 베이스아스팔트(Base Asphalt) 82 ∼ 89중량%에, 폴리에틸렌 왁스(Polyethylene Wax) 1~3중량%를 교반기에 투입하여 130~140℃에서 1차 혼합을 실시하고, 1차혼합을 완료한 후 폐타이어 고무분말(120mesh) 10~15중량%를 교반기에 투입하여 150~160℃에서 2차혼합을 실시하여 개질아스팔트 바인더를 제조하는 방법을 제공한다. In the present invention, 1 to 3% by weight of polyethylene wax is added to a stirrer at 82 to 89% by weight of the base asphalt heated at 150 ± 2 ° C., and the primary mixing is performed at 130 to 140 ° C. After the completion of the primary mixing, 10-15% by weight of the waste tire rubber powder (120 mesh) is added to the stirrer to provide a method for producing the modified asphalt binder by performing secondary mixing at 150 to 160 ° C.
상술한 목적, 특징들 및 장점은 첨부된 도면 및 아래의 시험 결과와 관련한 다음의 상세한 설명을 통하여 보다 분명해 질 것이다. The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings and the test results below.
이하, 시험 결과 및 첨부된 도면을 참조하여 본 발명에 따른 바람직한 일실시예를 상세히 설명한다.Hereinafter, with reference to the test results and the accompanying drawings will be described in detail a preferred embodiment according to the present invention.
본 발명에 따른 폐타이어 고무분말과 폴리에틸렌 왁스를 첨가한 개질아스팔트 바인더 조성물 및 그의 제조방법은 고온에서의 소성변형 저항성, 저온에서의 균열저항성을 향상시키면서, 또한 시공온도에서 아스팔트 혼합물의 워커빌리티를 개선할 수 있도록 개선한 것이다. The modified asphalt binder composition comprising the waste tire rubber powder and the polyethylene wax according to the present invention and its manufacturing method can improve the plastic deformation resistance at high temperature and the crack resistance at low temperature, and also improve the workability of the asphalt mixture at the construction temperature. It would be improved.
본 발명은 도1에 도시한 바와 같이, 베이스 아스팔트(Base Asphalt) 82 ∼ 89중량%에, 폐타이어 고무분말(120mesh) 10~15 중량%, 폴리에틸렌 왁스(Polyethylene Wax; 이하, 'PE Wax'라 칭함) 1~3 중량%를 첨가하여 균일상으로 분산하여 개질 아스팔트 바인더를 제조한다.As shown in Figure 1, the base asphalt (Base Asphalt) 82 to 89% by weight, waste tire rubber powder (120 mesh) 10-15% by weight, polyethylene wax (hereinafter referred to as "PE Wax") 1 to 3% by weight is added and dispersed in a uniform phase to prepare a modified asphalt binder.
또한, 상기한 바와 같은 조성물을 갖는 본 발명의 제조방법을 살펴보면 다음과 같다.In addition, looking at the manufacturing method of the present invention having a composition as described above are as follows.
먼저, 150±2℃에서 가열된 베이스 아스팔트(Base Asphalt) 82 ∼ 89중량%에 PE(Polyethylene) Wax 1~3중량%를 교반기에 투입하여 130~140℃에서 1차 혼합을 실시한다. 그리고, 1차혼합을 완료한 후 폐타이어 고무분말(120mesh) 10~15중량%를 교반기에 투입하여 150~160℃에서 2차혼합을 실시하여 개질아스팔트 바인더를 제조한다.First, 1 to 3% by weight of PE (Polyethylene) Wax is added to the stirrer at 82 to 89% by weight of the base asphalt heated at 150 ± 2 ° C., followed by primary mixing at 130 to 140 ° C. After completion of the first mixing, 10-15% by weight of the waste tire rubber powder (120 mesh) was added to the stirrer to carry out the second mixing at 150-160 ° C. to prepare a modified asphalt binder.
상기한 조성으로 제조되는 본 발명은 PG 등급 82-22를 만족하여 기존 개질아스팔트 바인더와 동등한 고온 저온특성을 나타내며, 시공시 아스팔트 바인더의 워커빌리티를 확인할 수 있는 135℃ 회전점도값은 기존 개질아스팔트 바인더에 비해 절반 이상 낮추어 워커빌리티가 크게 개선된 특징을 나타낸다. The present invention manufactured with the above composition exhibits high temperature and low temperature properties equivalent to existing modified asphalt binders satisfying PG grade 82-22, and the 135 ° C rotational viscosity value that can confirm the workability of the asphalt binder during construction is applied to the existing modified asphalt binders. It is more than half lower than that, which shows a significantly improved workability.
상기 폐타이어 고무분말(120mesh)은 저온에서의 균열저항성을 강화시키며 고온에서의 내유동성을 일부 강화시키는 역할을 하지만 폐타이어 고무분말(120mesh)만을 첨가시 내유동성을 크게 개선시키지 못하며, 폐타이어 고무분말(120mesh)과 PE(Polyethylene) Wax의 조합을 통해 고온에서의 내유동성을 크게 강화시킨다.The waste tire rubber powder (120 mesh) enhances the crack resistance at low temperatures and enhances the flow resistance at a high temperature but does not significantly improve the flow resistance when only the waste tire rubber powder (120 mesh) is added. The combination of powder (120 mesh) and PE (polyethylene) wax greatly enhances the flow resistance at high temperatures.
상기 PE(Polyethylene) Wax는 고온에서 내유동성을 강화시키며 시공온도에서 워커빌리티를 좋게 하는 역할을 하지만 저온에서 딱딱한 특성을 나타내어 균열저항 성을 취약하게 만드는 단점이 있으나, 폐타이어 고무분말(120mesh)과 PE(Polyethylene) Wax의 조합을 통해 PE(Polyethylene) Wax의 단점이 상쇄되어 저온에서의 균열저항성을 강화시킨다. The PE (Polyethylene) Wax strengthens the flow resistance at high temperatures and improves workability at the construction temperature, but has a disadvantage of making the crack resistance vulnerable by exhibiting hard properties at low temperatures, but waste tire rubber powder (120 mesh) and PE Combination of (Polyethylene) Wax offsets the disadvantages of PE (Polyethylene) Wax to enhance crack resistance at low temperatures.
상기 폐타이어의 조성비에서, 폐타이어 고무분말이 10 중량% 미만일 경우에는 고온등급 PG 82를 만족하지 못하며, 15 중량% 이상일 경우에는 135℃ 회전점도 값이 3000cp 이상을 나타내어 워커빌리티 개선효과를 나타내지 못하게 된다. In the composition ratio of the waste tire, when the waste tire rubber powder is less than 10% by weight does not satisfy the high
상기 PE(Polyethylene) Wax의 조성비에서, PE Wax가 1 중량% 미만일 경우에는 그 양이 너무 소량이여서 Wax의 효과가 나타나지를 않고, 3 중량% 이상일 경우에는 저온에서의 균열저항성이 약화되어 저온등급 PG-22를 만족하지 못하게 된다. In the composition ratio of polyethylene wax, when PE Wax is less than 1% by weight, the amount is too small so that the effect of Wax does not appear. Will not satisfy -22.
실시예Example
실시예Example 1 : One : 동적전단유동기Dynamic Shear Fluidizer 실험 Experiment
도2와 도3은 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 단기노화전 상태와 단기노화후 상태에서의 동적전단유동기 실험결과를 비교하여 나타내고 있다. 그림에서 나타낸 것과 같이 3가지 종류의 개질아스팔트 바인더 모두 고온등급 PG 82를 모두 통과하는 것으로 나타났다.Figures 2 and 3 show the results of the dynamic shear fluidizer experiments in the premodified state and the short term aging state of the conventional modified asphalt binder and the asphalt binder according to the present invention. As shown in the figure, all three types of modified asphalt binders were found to pass all of the high
실시예Example 2 : 2 : 처짐보Sagbo 유동기Fluid 실험 Experiment
도4는 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 처짐보 유동기 실험결과를 나타내고 있다. 그림에서 나타낸 것과 같이 C사 바인더를 제 외한 본발명의 아스팔트 바인더와 S사 아스팔트 바인더는 시험온도 -12℃에서 기준치를 통과하여 저온등급 PG-22를 통과하는 것으로 나타났다. Figure 4 shows the experimental results of the deflection beam flower of the conventional modified asphalt binder and the asphalt binder according to the present invention. As shown in the figure, the asphalt binder of the present invention except the binder of company C and the asphalt binder of company S were found to pass the low temperature grade PG-22 at the test temperature of -12 ° C.
실시예Example 3 : 135℃ 회전점도 실험 3: 135 ° C rotational viscosity experiment
도5는 기존 개질아스팔트 바인더와 본 발명에 따른 아스팔트 바인더의 135℃ 회전점도 실험결과를 나타내고 있다. 그림에서 나타낸 것과 같이 본 발명에 따른 아스팔트 바인더가 기존 개질 아스팔트 바인더보다 회전점도값을 절반 이상 낮추는 것으로 나타났으며, 이는 도로포장시공시 아스팔트 혼합물의 워커빌리티를 크게 증대시키고, 시공품질을 크게 향상시킬 수 있다는 것을 보여주는 것이다. Figure 5 shows the results of the 135 ° C rotational viscosity test of the conventional modified asphalt binder and the asphalt binder according to the present invention. As shown in the figure, it was shown that the asphalt binder according to the present invention lowers the rotational viscosity value by more than half of the conventional modified asphalt binder, which can greatly increase the workability of the asphalt mixture and improve the construction quality. To show that there is.
이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 도로 포장 재료로서 여러 가지 치환, 변형 및 변경이 가능하다는 것이 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다. The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and the present invention is capable of various substitutions, modifications, and changes as road pavement materials without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in the art.
전술한 바와 같이 본 발명에 따르면, 베이스 아스팔트(Base Asphalt)에 폐타이어 고무분말(120mesh)과 PE(Polyethylene) Wax를 첨가하여 균일상으로 분산하여 제조된 개질아스팔트 바인더는 밀입도 아스팔트 콘크리트 포장과 배수성 아스팔트 콘크리트 포장에 적용이 가능하며, 기존 개질아스팔트 바인더에 비해 워커빌리티(Workability)가 우수하고, 고온에서의 소성변형 저항성과 저온에서의 균열저항 성이 우수하여, 시공품질을 향상시키고 포장의 수명을 현격히 증대시킬 수 있는 효과가 있다. As described above, according to the present invention, the modified asphalt binder prepared by adding waste tire rubber powder (120 mesh) and PE (Polyethylene) Wax to the base asphalt is dispersed in a uniform phase. It can be applied to asphalt concrete pavement, and it has better workability than existing modified asphalt binder, and has excellent resistance to plastic deformation at high temperature and crack resistance at low temperature, improving construction quality and significantly extending the life of pavement. There is an effect that can be increased.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396669A (en) * | 2013-07-09 | 2013-11-20 | 杨林江 | Microwave desulfurated and cracked waste tyre rubber powder composite modified asphalt and preparation method thereof |
| KR20140083045A (en) * | 2011-10-26 | 2014-07-03 | 사우디 아라비안 오일 컴퍼니 | Sulfur-modified asphalt emulsion and binder compositions |
| US9546275B2 (en) | 2013-04-09 | 2017-01-17 | Saudi Arabian Oil Company | Enhancing properties of sulfur extended asphalt using polyethylene wax |
| CN112662342A (en) * | 2020-12-21 | 2021-04-16 | 衡水中铁建土工材料制造有限公司 | Modified asphalt interface adhesive and preparation method thereof |
| CN115785685A (en) * | 2022-12-20 | 2023-03-14 | 山东交科路美达新材料科技有限公司 | Natural rock asphalt composite modified asphalt mixture and preparation method thereof |
-
2006
- 2006-11-28 KR KR1020060118361A patent/KR20080048232A/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140083045A (en) * | 2011-10-26 | 2014-07-03 | 사우디 아라비안 오일 컴퍼니 | Sulfur-modified asphalt emulsion and binder compositions |
| US9546275B2 (en) | 2013-04-09 | 2017-01-17 | Saudi Arabian Oil Company | Enhancing properties of sulfur extended asphalt using polyethylene wax |
| CN103396669A (en) * | 2013-07-09 | 2013-11-20 | 杨林江 | Microwave desulfurated and cracked waste tyre rubber powder composite modified asphalt and preparation method thereof |
| CN103396669B (en) * | 2013-07-09 | 2016-08-10 | 杨林江 | Microwave desulfurization cracking rubber powder of waste tire composite modified asphalt and preparation method thereof |
| CN112662342A (en) * | 2020-12-21 | 2021-04-16 | 衡水中铁建土工材料制造有限公司 | Modified asphalt interface adhesive and preparation method thereof |
| CN112662342B (en) * | 2020-12-21 | 2022-09-23 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Modified asphalt interface adhesive and preparation method thereof |
| CN115785685A (en) * | 2022-12-20 | 2023-03-14 | 山东交科路美达新材料科技有限公司 | Natural rock asphalt composite modified asphalt mixture and preparation method thereof |
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