KR100291581B1 - Asphalt-paved appendix and mixture thereof - Google Patents
Asphalt-paved appendix and mixture thereof Download PDFInfo
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- KR100291581B1 KR100291581B1 KR1019990009387A KR19990009387A KR100291581B1 KR 100291581 B1 KR100291581 B1 KR 100291581B1 KR 1019990009387 A KR1019990009387 A KR 1019990009387A KR 19990009387 A KR19990009387 A KR 19990009387A KR 100291581 B1 KR100291581 B1 KR 100291581B1
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- asphalt
- weight
- mixture
- additives
- aggregate
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- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 239000010426 asphalt Substances 0.000 claims abstract description 72
- 239000000654 additive Substances 0.000 claims abstract description 21
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000004575 stone Substances 0.000 claims abstract description 10
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 abstract description 4
- 238000010304 firing Methods 0.000 abstract 1
- 239000012615 aggregate Substances 0.000 description 25
- 229920000642 polymer Polymers 0.000 description 9
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000005204 segregation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000013521 mastic Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 1
- -1 Polyethylene Polymers 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/007—Working-up pitch, asphalt, bitumen winning and separation of asphalt from mixtures with aggregates, fillers and other products, e.g. winning from natural asphalt and regeneration of waste asphalt
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
- C10C3/026—Working-up pitch, asphalt, bitumen by chemical means reaction with organic compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명은 아스팔트 포장용 첨가제 및 그 혼합물에 관한 것으로, 아스팔트(역청재)와 셀룰로스 화이바 및 고분자 화합물(SBS, SBR, EVA, EPDM, PE 등)을 1 : 2 : 3 내지 1 : 4 : 6과 같이 적절한 비율로 혼합하여 아스팔트 포장용 첨가제를 만들고,The present invention relates to additives for asphalt pavement and mixtures thereof, and suitable for asphalt (bituminous materials), cellulose fibers and high molecular compounds (SBS, SBR, EVA, EPDM, PE, etc.) such as 1: 2: 3 to 1: 4: 6. Mix in proportion to make additives for asphalt pavement,
상기의 아스팔트 포장용 첨가제 0.2∼1.5중량%, 아스팔트 5∼8중량%, 골재 81∼90% 및 석분 5∼10중량%를 혼합한 혼합물로 아스팔트의 공사를 수행하도록 함으로써 비교적 적은 가격으로 아스팔트 표층의 소성변형을 최소화할 수 있도록 한 것이다.Firing of asphalt surface layer at a relatively low price by allowing asphalt construction to be carried out with a mixture of 0.2 to 1.5% by weight of the asphalt paving additive, 5 to 8% by weight of asphalt, 81 to 90% of aggregate, and 5 to 10% by weight of stone powder. This is to minimize deformation.
Description
본 발명은 아스팔트 포장용 첨가제 및 그 혼합물에 관한 것으로, 특히 아스팔트와 셀룰로스 화이바 및 고분자 화합물(SBS, SBR, EVA, EPDM, PE 등)을 혼합한 첨가제를 아스팔트와 골재 및 석분의 아스팔트 혼합물을 제조할 때 같이 혼합하여 골재끼리의 맞물림이 이상적으로 구성되면서 소성변형에 대한 저항성을 높이고 균열발생의 지연을 유도하여 아스팔트 표층의 소성변형을 최소화할 수 있도록 한 아스팔트 포장용 첨가제 및 그 혼합물에 관한 것이다.The present invention relates to additives for asphalt pavement and mixtures thereof. In particular, when preparing an asphalt mixture of asphalt, aggregate and stone powder, additives in which asphalt and cellulose fibers and polymer compounds (SBS, SBR, EVA, EPDM, PE, etc.) are mixed The present invention relates to an additive for asphalt pavement and mixtures thereof, which minimizes the plastic deformation of the asphalt surface by increasing the resistance to plastic deformation and inducing the delay of cracking, as the mixing of aggregates is ideally configured.
일반적으로 사람이나 차량이 통행하는 도로에서 흙먼지가 발생하거나 땅이 울퉁불퉁하게 변형되는 현상을 방지하기 위해 도로의 표면에 석유 추출물인 아스팔트에 자갈과 모래를 혼합한 아스팔트 콘크리트를 포장하는 아스팔트 포장을 널리 사용되고 있음은 이미 잘 알려진 사실이다.In general, asphalt pavement is widely used for paving asphalt concrete mixed with gravel and sand in asphalt, which is petroleum extract, on the surface of the road to prevent dust or uneven deformation of the ground on roads where people or vehicles pass. In fact is a well known fact.
그리고 아스팔트 콘크리트로 아스팔트 포장한 도로를 차량이 편리하게 다닐 수 있으므로 전세계적으로 가장 널리 사용되고 있다.In addition, the asphalt paved road is the most widely used around the world because the vehicle can conveniently travel on asphalt-paved roads.
그러나 아스팔트 포장한 도로라 하더라도 교통량이 너무 많거나 무거운 짐을 실은 차량이 많이 주행하게 되면 차바퀴에 의해 아스팔트 콘크리트가 패이게 된다.However, even asphalt-paved roads, when there is a lot of traffic or heavy loads, the asphalt wheels will be crushed by the wheels.
더구나 최근 들어 교통량과 중차량이 많아지면서 차량의 소통이 원활하지 못하여 지체나 정체가 빈번하게 되고 이로 인해 차바퀴패임(소성변형)이 발생하였으며 이러한 차바퀴패임은 교통의 소통이 더욱 원활하지 못하게 하는 원인으로 제공될 뿐 아니라 우천시 수막현상(빗물이 고여 차량이 미끄러지는 현상)을 일으켜 운전자의 안전운행에 큰 위험요소가 되었다.In addition, in recent years, traffic and heavy vehicles have become more difficult to communicate with each other, resulting in frequent delays or congestion, resulting in wheel wheel stiffness (plastic deformation). In addition to being provided, it caused a hydroplaning phenomenon in rainy weather, which caused the vehicle to slip and became a major hazard to the driver's safe operation.
그러므로 승차감이 뛰어나고 소음이 낮으며 유지보수가 용이하다는 장점에도 불구하고 아스팔트 포장이 열약한 승차감을 제공하는 콘크리트 포장으로 대체되고 있는 실정이었다.Therefore, despite the advantages of excellent ride comfort, low noise and easy maintenance, asphalt pavement has been replaced by concrete pavements that provide poor ride comfort.
이와 같은 아스팔트 포장의 문제점을 해결할 수 있는 쇄석 매스틱 아스팔트(SMA : Stone Mastic Asphalt) 공법과 PMA(Polymer Modify Asphalt) 공법이 제안되어 사용되고 있으며, SMA공법과 같이 아스팔트 6∼8중량%와, 셀룰로스 화이버(또는 미네랄 화이버) 중량비 0.3% 및 혼합골재 중량비 92∼94%를 혼합하여 포장하거나 PMA공법과 같이 결합재인 개질아스팔트 4.5∼5.5중량％와 혼합골재 중량비 95∼96％를 혼합하여 포장하도록 하였다.Stone Mastic Asphalt (SMA) and Polymer Modify Asphalt (PMA) methods are proposed and used to solve the problems of the asphalt pavement. As with the SMA method, 6-8 wt% asphalt and cellulose fibers (Or mineral fibers) 0.3% by weight and 92 to 94% by weight of the mixed aggregates were mixed or packaged, or 4.5 to 5.5% by weight of modified asphalt as a binder and 95 to 96% by weight of the mixed aggregate were packaged as in the PMA method.
그러나 상기와 같은 종래의 쇄석 매스틱 아스팔트 공법에서는 골재의 입도를 개선하여 혼합물을 제조하는 공법으로 골재의 입도 자체로만으로도 소성변형에 대해 매우 우수하지만 입도개선을 위한 골재 생산이 매우 어렵고 골재끼리 맞물림을 이상적으로 하기 위해서 골재 생산시 편장석율을 관리하여야하며 아스팔트 혼합물에 사용할 골재의 샘플을 채취한 후 편장석을 선별하여 그 편장석이 중량비로 20％이하로 제한하고 있어 골재를 생산하는데 매우 어려움이 있었고 이것들이 골재 생산 원가의 상승요인이 되었으며 또 셀룰로오스 화이버가 중량비 0.1∼0.3%가 혼합되는 데, 이는 셀룰로오스 화이버를 전량 외국에서 수입하는 상태이므로 포장시 원가가 상승되는 원인이 되었으며, 현재로는 그 성분마저 알려지지 않아 국내에서 생산할 수 없어 효능이 인정되고 있는 쇄석 매스틱 아스팔트 공법을 확대하여 실시하지 못하는 문제점이 되었다.However, in the conventional crushed mastic asphalt method as described above, the method of manufacturing the mixture by improving the particle size of the aggregate is very good against plastic deformation by the particle size of the aggregate alone, but the aggregate production for the particle size improvement is very difficult and the aggregates are interlocked. To be ideal, the segregation rate should be controlled during the production of aggregates. After collecting the samples of the aggregates used in the asphalt mixture, the segregation is selected and the segregation is limited to less than 20% by weight. These factors contributed to the rising cost of aggregate production, and cellulose fibers were mixed with 0.1 to 0.3% by weight, which caused the cost of packaging to increase because all the cellulose fibers are imported from abroad. Ingredients are unknown, so they cannot be produced in Korea This issue was not carried out by expanding the stone mastic asphalt formulations that have been recognized.
또한 PMA는 일반골재와 고분자화합물(SBS)과 아스팔트를 미리 혼합한 개질아스팔트를 사용하여 혼합물을 제조하는 공법으로 골재의 입도가 소성에 취약한 점이 있고 이 골재입도의 취약점을 보완하기 위해 개질아스팔트를 사용하는데 이 개질아스팔트를 따로 저장할 수 있는 저장탱크를 아스콘 생산공장에서는 구비를 하여야 하고 골재와 개질아스팔트의 혼합시에 아스팔트량을 충분히 투입할 수 없는 단점이 있어 수명이 그리 오래 가지 못하는 단점이 있었다.In addition, PMA is a method of manufacturing a mixture using modified asphalt mixed with general aggregate, high molecular compound (SBS) and asphalt, and the particle size of aggregate is vulnerable to plasticity, and modified asphalt is used to compensate for the weakness of aggregate size. However, ascon production plant should be equipped with a storage tank that can store the modified asphalt separately, and there is a disadvantage that it is not possible to put enough asphalt when mixing aggregate and modified asphalt.
이에 따라 본 발명은 아스팔트와 셀룰로스 화이바 및 고분자 화합물인 SBS, SBR, EVA, EPDM, PE 등을 혼합한 첨가제를 아스팔트와 골재 및 석분의 아스팔트 혼합물을 제조할 때 같이 혼합하여 첨가제가 갖는 특징으로 하여 골재의 입도를 SMA와 같이 하지 않고 편장석율도 특별히 관리하지 않고 일반적으로 생산되는 골재(편장석율 : 보통 30∼40％)를 사용하여 아스팔트량을 충분히 투입하면서 소성변형에 대한 저항성을 높이고 균열발생의 지연을 유도하여 아스팔트 표층의 소성변형을 최소화할 수 있도록 한 아스팔트 포장용 첨가제 및 그 혼합물을 제공함을 그 목적으로 한다.Accordingly, the present invention is characterized in that the additive is a mixture of asphalt and cellulose fiber and the high molecular compound SBS, SBR, EVA, EPDM, PE, etc. when the asphalt mixture of asphalt, aggregate and stone powder is mixed, characterized in that the additive has It does not control the particle size of SMA and does not control the segregation rate in particular, and generally uses aggregates produced (the segregation rate: usually 30-40%) to increase the resistance to plastic deformation and to increase the resistance to cracking and cracking. It is an object of the present invention to provide an additive for asphalt pavement and mixtures thereof which can induce a delay to minimize plastic deformation of the asphalt surface layer.
이와 같은 목적을 달성하기 위한 본 발명은 아스팔트와 셀룰로스 화이바(Cellulose Fiber) 및 고분자 화합물{SBS(Stylene Butadene Stylene, SBR(Stylene Butadiene Rubber), EVA (Ethylene Vinylacetate Copolymer), EPDM(Ethylene Propylene Dieneterpolymer), PE(Polyethylene) 등}을 1 : 2 : 3 내지 1 : 4 : 6과 같이 적절한 비율로 혼합하여 아스팔트 포장용 첨가제를 만들고,The present invention for achieving the above object is asphalt and cellulose fiber (Cellulose Fiber) and polymer compounds {SBS (Stylene Butadene Stylene, SBR (Stylene Butadiene Rubber), EVA (Ethylene Vinylacetate Copolymer), EPDM (Ethylene Propylene Dieneterpolymer), PE (Polyethylene), etc.} in an appropriate ratio, such as 1: 2: 3 to 1: 4: 6, to make an additive for asphalt pavement,
상기의 아스팔트 포장용 첨가제 0.2∼1.5중량%, 아스팔트 5∼8중량%, 골재 81∼90중량% 및 석분 5∼10중량%를 혼합한 혼합물로 아스팔트의 공사를 수행하도록 함으로써 비교적 적은 가격으로 아스팔트 표층의 소성변형을 최소화할 수 있도록 한 것이다.The asphalt pavement additives 0.2-1.5% by weight, asphalt 5-8% by weight, aggregates 81-90% by weight and 5-10% by weight of stone powder to perform the construction of asphalt by relatively low price of the asphalt surface layer It is to minimize plastic deformation.
이하 본 발명을 일실시예에 따라 상세히 기술하면 다음과 같다.Hereinafter, the present invention will be described in detail according to an embodiment.
먼저 아스팔트 포장용 첨가제는 아스팔트의 요구되는 양을 적정량씩 공급할 수 있는 장치와,First, the asphalt pavement additive is a device capable of supplying the required amount of asphalt by an appropriate amount,
셀룰로스 화이바의 요구되는 양을 적정량씩 공급할 수 있는 장치와,A device capable of supplying the required amount of cellulose fiber in an appropriate amount,
SBS, SBR, EVA, EPDM 또는 PE의 고분자 화합물의 요구되는 양을 일정하게 공급할 수 있도록 장치를 각각 구비한다.Each device is provided so as to constantly supply the required amount of the polymer compound of SBS, SBR, EVA, EPDM or PE.
상기의 장치는 첨가제의 품질에 따라 아스팔트와 셀룰로스 화이바와 고분자 화합물을 1 : 2 : 3 내지 1 : 4 : 6의 적절한 비율로 공급할 수 있어야 한다.The apparatus should be able to supply asphalt, cellulose fibers and polymer compounds in an appropriate ratio of 1: 2: 3 to 1: 4: 6, depending on the quality of the additives.
그리고 상기의 고분자 화합물은 SBS, SBR, EVA, EPDM 및 PE 중 어느 한 종류를 사용할 수 있다.And the polymer compound may be used any one of SBS, SBR, EVA, EPDM and PE.
한편, 아스팔트 포장용 혼합물은 혼합조에 가열된 아스팔트와 석분 및 골재를 혼합할 때 상기의 셀룰로스 화이바와 고분자 화합물을 혼합한 아스팔트 포장용 첨가제를 적정량씩 혼합하는 것이다.On the other hand, the asphalt pavement mixture is to mix the asphalt pavement additives mixed with the cellulose fiber and the polymer compound in an appropriate amount when mixing the asphalt and stone powder and aggregate heated in the mixing tank.
즉, 아스팔트 5∼8중량%, 골재 81∼90중량% 및 석분 5∼10중량%를 혼합하는 믹서에 상기의 아스팔트 포장용 첨가제 0.2∼1.5중량%를 혼합한다.That is, 0.2-1.5 weight% of said asphalt paving additives are mixed with the mixer which mixes 5-8 weight% of asphalt, 81-90 weight% of aggregates, and 5-10 weight% of stone powder.
상기의 믹서에 투입된 골재와 아스팔트의 온도는 ±10℃의 범위를 넘어서는 안되고, 믹서에서 배출시 혼합물의 온도에서 170±15℃의 범위가 적절하며, 믹서에 투입할 때 골재의 온도는 아스팔트의 온도보다 10℃ 이상 높아서는 안된다.The temperature of the aggregate and asphalt in the mixer should not exceed the range of ± 10 ℃, when the discharge from the mixer is suitable for the range of 170 ± 15 ℃, the temperature of the aggregate when the mixer is put into the temperature of the asphalt It should not be higher than 10 ℃.
또한 상기 아스팔트 혼합물은 일정한 배합의 기준에 따라야 한다.The asphalt mixture should also conform to the criteria of certain formulations.
즉, 플랜트의 검사결과 각 성능에 대해서 합격판정이 얻어지면 현장 배합입도와 현장 아스팔트량을 결정한다.In other words, when the results of the inspection of the plant determines the acceptance of each performance, the site compounding granularity and the site asphalt amount are determined.
상기의 배합입도와 아스팔트량은 도로연구소 아스팔트포장 연구실에서 제안하거나 기타 도로포장을 연구하는 연구소의 제안에 따라 적절한 골재의 최대치수별 SMA 혼합물 입도 시방의 기준값이나 PMA 혼합물 입도 시방의 기준값을 정할 수 있게 된다.The above formulated granularity and asphalt content can be determined by the Road Pavement Laboratory's Asphalt Pavement Lab or by other laboratories studying road pavement. do.
더구나 본 발명의 아스팔트와 셀룰로스 화이바 및 고분자 화합물을 혼합한 아스팔트 포장용 첨가제를 사용하는 경우에는 상기의 혼합물 입도 시방의 기준에 따라 배합되는 골재의 규격에 호환성을 가질수 있어 골재의 가공에 따른 비용을 절감할 수 있게 된다.In addition, when using the asphalt pavement additive mixture of asphalt and cellulose fiber and the polymer compound of the present invention can be compatible with the specifications of the aggregates blended in accordance with the specifications of the mixture particle size specification to reduce the cost of processing aggregates It becomes possible.
따라서 본 발명의 아스팔트 포장용 첨가제 및 그 혼합물에 의하여서는 아스팔트와 셀룰로스 화이바 및 고분자 화합물(SBS, SBR, EVA, EPDM, PE 등)을 1 : 2 : 3 내지 1 : 4 : 6의 적절한 비율로 혼합하여 아스팔트 포장용 첨가제를 만들고,Therefore, according to the asphalt pavement additives and mixtures thereof, asphalt and cellulose fibers and polymer compounds (SBS, SBR, EVA, EPDM, PE, etc.) are mixed at an appropriate ratio of 1: 2: 3 to 1: 4: 6. Make additives for paving asphalt,
상기의 아스팔트 포장용 첨가제 0.2∼1.5중량%, 아스팔트 5∼8중량%, 골재 81∼90중량% 및 석분 5∼10중량%를 혼합한 혼합물로 아스팔트의 공사를 수행하도록 함으로써 비교적 적은 가격으로 아스팔트 표층의 소성변형 방지, 균열 저항 증가 및 도로수명을 연장할 수 있도록 한 것이다.The asphalt pavement additives 0.2-1.5% by weight, asphalt 5-8% by weight, aggregates 81-90% by weight and 5-10% by weight of stone powder to perform the construction of asphalt by relatively low price of the asphalt surface layer It is designed to prevent plastic deformation, increase crack resistance and prolong road life.
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| KR1019990009387A KR100291581B1 (en) | 1999-03-19 | 1999-03-19 | Asphalt-paved appendix and mixture thereof |
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| KR1019990009387A KR100291581B1 (en) | 1999-03-19 | 1999-03-19 | Asphalt-paved appendix and mixture thereof |
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| KR100432485B1 (en) * | 2001-06-29 | 2004-05-22 | 주식회사 청해산업 | Method for manufacturing and drainage asphalt |
| KR100422896B1 (en) * | 2001-06-29 | 2004-03-12 | 강전택 | Method for manufacturing and modify agent for drainage asphalt |
| KR20050111991A (en) * | 2004-05-24 | 2005-11-29 | 고려개발 주식회사 | Permeable asphalt |
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