KR20000033597A - Cold-mix bituminous emulsion asphalt - Google Patents
Cold-mix bituminous emulsion asphalt Download PDFInfo
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- KR20000033597A KR20000033597A KR1019980050523A KR19980050523A KR20000033597A KR 20000033597 A KR20000033597 A KR 20000033597A KR 1019980050523 A KR1019980050523 A KR 1019980050523A KR 19980050523 A KR19980050523 A KR 19980050523A KR 20000033597 A KR20000033597 A KR 20000033597A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/36—Bituminous materials, e.g. tar, pitch
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/048—Granite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
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Abstract
Description
본 발명은 상온 유화아스팔트 혼합물에 관한 것으로서, 특히 중속경화형 상온 유화아스팔트 혼합물 및 완속경화형 상온 유화아스팔트 혼합물에 관한 것이다.The present invention relates to a room temperature emulsion asphalt mixture, and more particularly, to a medium-speed curing room temperature emulsion asphalt mixture and a slow curing room temperature emulsion asphalt mixture.
일반적으로 아스팔트는 열을 가하여 제조되는 가열 혼합형 아스콘(hot-mix asphalt concrete)와, 용제로 석유를 사용하여 제조되는 컷백 아스팔트(cutback asphalt)와, 용제로 물을 사용하여 제조되는 상온 유화아스팔트 혼합물(cold-mix bituminous emulsion asphalt)이 있다.In general, asphalt is a hot-mix asphalt concrete prepared by applying heat, a cutback asphalt prepared by using petroleum as a solvent, and an ambient temperature emulsion asphalt mixture prepared by using water as a solvent. cold-mix bituminous emulsion asphalt).
상기 가열 혼합형 아스콘(hot-mix asphalt concrete)은 제조과정에 많은 양의 열을 필요로 하며, 특히, 도로의 수용능력을 초과하는 교통량의 급속한 증가로 인하여, 제조시에 아스팔트성분의 산화 열화작용은 아스팔트 조성물을 경화변질시켜 동절기에 아스팔트의 균열을 생기게 한다. 그리고, 컷백 아스팔트(cutback asphalt)는 가열없이 상온에서 제조할 수 있으나, 용제로 비싼 석유를 사용해야 하며, 오일의 함량이 높게 되므로 시공후 양생과정에서 오일이 하천 및 토양으로 배출되어 자연환경에 대단히 유해한 것으로 판정되어 구미 각국에서는 사용을 억제하고 있다.The hot-mix asphalt concrete requires a large amount of heat in the manufacturing process, and in particular, due to the rapid increase in traffic exceeding the capacity of the road, the oxidation deterioration of asphalt components during manufacture Hardening of the asphalt composition causes cracking of the asphalt in winter. In addition, cutback asphalt can be manufactured at room temperature without heating. However, expensive oil must be used as a solvent, and since the oil content is high, the oil is discharged to rivers and soil during the curing process, which is very harmful to the natural environment. It is judged that use is suppressed in Western countries.
따라서, 물을 사용함에 의해, 가열할 필요가 없을 뿐만 아니라 제조시 산화열화작용이 생기지 않고 자연환경에도 영향을 주지 않는 상온 유화아스팔트 혼합물(cold-mix bituminous emulsion asphalt)의 사용이 권장되고 있다.Therefore, by using water, it is recommended to use a cold-mix bituminous emulsion asphalt which does not need to be heated and does not cause oxidative degradation during production and does not affect the natural environment.
이러한 상온 유화아스팔트 혼합물(cold-mix bituminous emulsion asphalt)은 유화아스팔트와, 물과, 골재가 혼합되어 제조된다.The cold-mix bituminous emulsion asphalt is prepared by mixing emulsion, asphalt, water, and aggregate.
상기 상온 유화아스팔트 혼합물은 얼마나 빠르게 유착(coalesce)하는가, 즉, 얼마나 빠르게 아스팔트 시멘트로 형성되는 가에 따라 급속응결형 상온 유화아스팔트 혼합물(일명 "RS형 혼합물"이라고도 한다.)과, 중속경화형 상온 유화아스팔트 혼합물(일명,"MS형 혼합물"이라고도 한다)과, 완속경화형 상온 유화아스팔트 혼합물(이하, "SS형 혼합물"이라고도 한다.)로 나누어 지는데, 유착의 경향은 조성비와 밀접한 관계가 있다.The room temperature emulsified asphalt mixture is a fast-condensing room temperature emulsified asphalt mixture (also referred to as an "RS-type mixture") and medium-hardening normal temperature emulsion depending on how quickly coalesce (coalesce), that is how quickly formed into asphalt cement It is divided into asphalt mixture (also called "MS-type mixture") and slow-hardening room temperature emulsion asphalt mixture (hereinafter also referred to as "SS-type mixture"). The tendency of coalescence is closely related to the composition ratio.
그리고, 상기 RS형 혼합물은 골재와의 혼합능력이 거의 없어 표면처리용의 혼합물로 주로 사용되고, 상기 MS형 및 SS형 혼합물은 골재와의 혼합능력이 크므로 현장혼합용이나 아스팔트 살포용이나 보수용으로 광범위 하게 사용되고 있다.In addition, the RS-type mixture is mainly used as a mixture for surface treatment because there is little mixing capacity with the aggregate, and the MS-type and SS-type mixture has a large mixing capacity with the aggregate, so that it is used for field mixing or asphalt spraying or repair. It is widely used.
그런데 아스팔트 혼합물은 장마등의 우기동안 교통하중에 적절한 저항력을 갖도록 수침(물속에 담김)조건에서 적절한 안정성이 있어야 한다. 즉, 수침시에 혼합물의 안정도 손실이 과도하면, 혼합물이 분해될 수가 있다.However, the asphalt mixture should have adequate stability under the condition of immersion (submersion) in order to have adequate resistance to traffic load during the rainy season. That is, if the stability loss of the mixture at the time of immersion is excessive, the mixture may be decomposed.
그리고, 혼합물은 지나친 영구변형, 과다한 수분흡수, 또는 혼합물로부터의 잔류 아스팔트의 블리딩(bleeding)을 방지할 수 있어야 한다.The mixture should also be able to prevent excessive permanent deformation, excessive water absorption, or bleeding of residual asphalt from the mixture.
또한, 혼합물은 잠재적인 박리(stripping) 또는 잔류 아스팔트와 골재사이의 접착의 약화를 최소화해야 하며, 골재를 적절히 코팅할 수 있어야 하고, 박리나 마모에 대한 저항력이 있어야 한다.In addition, the mixture should minimize potential stripping or weakening of adhesion between residual asphalt and aggregates, be capable of coating the aggregate properly, and be resistant to peeling or abrasion.
현재 교통량의 증가로 인해 도로의 내구성을 높이는 양질의 아스팔트 혼합물에 대한 요구가 점증하고 있다.Increasing traffic volume is driving the demand for quality asphalt mixtures that increase road durability.
본 발명은 이러한 요구에 부응하기 위해 이루어진 것으로서, 본 발명의 목적은 수침에 대한 안정도와 마모에 대한 저항도가 높은 상온 유화아스팔트 혼합물을 제공하는 데 있다.The present invention has been made to meet these demands, and an object of the present invention is to provide a room temperature emulsion asphalt mixture having high stability to immersion and high resistance to abrasion.
본 발명의 다른 목적은 폐아스팔트를 골재로 사용하면서도 그 안정도와 마모에 대한 저항도가 높은 상온 유화아스팔트 혼합물을 제공하는데 있다.Another object of the present invention is to provide a room temperature emulsion asphalt mixture using waste asphalt as an aggregate while having high stability and high resistance to abrasion.
도1은 본 발명의 제1실시예에 의한 상온 유화아스팔트 혼합물의 함수비에 대한 코팅률을 나타내는 그래프,1 is a graph showing the coating ratio with respect to the water content of the room temperature emulsion asphalt mixture according to the first embodiment of the present invention,
도2은 본 발명의 제1실시예에 의한 상온 유화아스팔트 혼합물의 함수비에 대한 마샬안정도을 나타내는 그래프,2 is a graph showing Marshall stability with respect to the water content of the room temperature emulsion asphalt mixture according to the first embodiment of the present invention,
도3은 본 발명의 제2실시예에 의한 상온 유화아스팔트 혼합물의 함수비에 대한 코팅률을 나타내는 그래프,Figure 3 is a graph showing the coating ratio with respect to the water content of the room temperature emulsion asphalt mixture according to a second embodiment of the present invention,
도4는 본 발명의 제2실시예에 의한 상온 유화아스팔트 혼합물의 함수비에 대한 마샬 안정도를 나타내는 그래프,4 is a graph showing Marshall stability with respect to the water content of the room temperature emulsion asphalt mixture according to a second embodiment of the present invention,
도5는 본 발명의 제3실시예에 의한 상온 유화아스팔트 혼합물의 함수비에 대한 코팅률을 나타내는 그래프,5 is a graph showing the coating ratio with respect to the water content of the room temperature emulsion asphalt mixture according to a third embodiment of the present invention,
도6은 본 발명의 제3실시예에 의한 상온 유화아스팔트 혼합물의 함수비에 대한 마샬안정도를 나타내는 그래프이다.6 is a graph showing Marshall stability with respect to the water content of the room temperature emulsion asphalt mixture according to a third embodiment of the present invention.
본 발명에 의한 상온 유화아스팔트 혼합물은 유화 아스팔트와 물과 골재로 이루어 지는 상온 유화아스팔트 혼합물에 있어서, 직경 6mm이하의 깬 모래로 된 세골재 43~47중량부와, 직경6~19mm로 된 중골재 33~37중량부와, 직경 19~40mm로 된 조골재 18~22중량부로 이루어진 골재 100중량부와; 상기 골재 100중량부에 대해 물 1~3중량부와; 상기 골재 100중량부에 대해 유화 아스팔트 4~8중량부로 이루어진다.The room temperature emulsified asphalt mixture according to the present invention is a room temperature emulsified asphalt mixture composed of emulsified asphalt, water, and aggregates. 43 to 47 parts by weight of fine aggregates made of crushed sand of 6 mm or less in diameter and heavy aggregates having a diameter of 6 to 19 mm. 100 parts by weight of aggregates consisting of 18 to 22 parts by weight of -37 parts by weight and a coarse aggregate having a diameter of 19 to 40 mm; 1 to 3 parts by weight of water based on 100 parts by weight of the aggregate; It consists of emulsified asphalt 4 to 8 parts by weight based on 100 parts by weight of the aggregate.
또한, 본 발명에 의한 상온 유화아스팔트 혼합물은 유화 아스팔트와, 물과, 폐아스팔트골재를 포함하는 골재로 이루어 지는 상온 유화아스팔트 혼합물에 있어서, 직경 6mm이하의 깬 모래로 된 세골재 26~30중량부와, 직경6~19mm로 중골재 25~29중량부와, 직경 19~40mm로 된 조골재 13~17중량부와, 직경 25mm이하의 폐아스팔트골재 28~32중량부로 이루어진 골재 100중량부와; 상기 골재 100중량부에 대해 물 3~5중량부와; 상기 골재 100중량부에 대해 완속경화형 유화 아스팔트 3~7중량부로 이루어 진다.In addition, the room temperature emulsified asphalt mixture according to the present invention, in the room temperature emulsified asphalt mixture composed of emulsified asphalt, water, and aggregates containing waste asphalt aggregate, 26 to 30 parts by weight of fine aggregate made of crushed sand having a diameter of 6 mm or less; 100 to 100 parts of aggregate consisting of 25 to 29 parts by weight of heavy aggregates, 6 to 19 mm in diameter, 13 to 17 parts by weight of coarse aggregates of 19 to 40 mm in diameter, and 28 to 32 parts by weight of waste asphalt aggregates having a diameter of 25 mm or less; 3 to 5 parts by weight of water based on 100 parts by weight of the aggregate; It consists of 3 to 7 parts by weight of the slow curing emulsified asphalt with respect to 100 parts by weight of the aggregate.
또한, 본 발명에 의한 상온 유화아스팔트 혼합물은 유화 아스팔트와, 물과, 폐아스팔트골재를 포함하는 골재로 이루어 지는 상온 유화아스팔트 혼합물에 있어서, 직경 6mm이하의 깬 모래로 된 세골재 20~24중량부와, 직경6~19mm로 중골재 23~27중량부와, 직경 19~40mm로 된 조골재 11~15중량부와, 직경 25mm이하의 폐아스팔트골재 38~42중량부로 이루어진 골재 100중량부와; 상기 골재 100중량부에 대해 물 3~5중량부와; 상기 골재 100중량부에 대해 완속경화형 유화 아스팔트 2.5~6.5중량부로 이루어 진다.In addition, the room temperature emulsified asphalt mixture according to the present invention is a room temperature emulsified asphalt mixture composed of emulsified asphalt, water, and aggregate containing waste asphalt aggregate, and 20 to 24 parts by weight of fine aggregate made of crushed sand having a diameter of 6 mm or less; 100 parts by weight of aggregates consisting of 23 to 27 parts by weight of heavy aggregates, 6 to 19 mm in diameter, 11 to 15 parts by weight of coarse aggregates of 19 to 40 mm in diameter, and 38 to 42 parts by weight of waste asphalt aggregates of 25 mm or less in diameter; 3 to 5 parts by weight of water based on 100 parts by weight of the aggregate; It is made of 2.5 to 6.5 parts by weight of the slow curing emulsified asphalt with respect to 100 parts by weight of the aggregate.
상기 유화아스팔트는 양이온 유화아스팔트인 것이 바람직하다.It is preferable that the said emulsified asphalt is a cationic emulsified asphalt.
상기 유화 아스팔트는 유화 아스팔트원재 58~67중량부와, 물 33~42중량부로 이루어지는 것이 바람직하다.It is preferable that the said emulsified asphalt consists of 58-67 weight part of emulsified asphalt raw materials, and 33-42 weight part of water.
이하, 본 발명에 대해 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명에 의한 상온 유화아스팔트 혼합물은 유화아스팔트와, 물과, 골재로 이루어 진다.Room temperature emulsion asphalt mixture according to the present invention is composed of emulsion asphalt, water and aggregate.
상기 유화아스팔트는 유화아스팔트원재와 물(이하 "기본수"이라 한다)로 이루어지며, 골재와의 혼합시 첨가되는 물(이하 "첨가수"라 한다.)과는 별개이다. 상기 기본수와 첨가수는 아스팔트의 양생시 증발하게 된다.The emulsified asphalt is composed of an emulsified asphalt raw material and water (hereinafter referred to as "basic water"), and is separate from water (hereinafter referred to as "added water") added when mixed with the aggregate. The basic water and the added water will evaporate during curing of the asphalt.
상기 유화 아스팔트는 골재와의 유착속도에 따라 급속경화형 유화아스팔트와, 중속경화형 유화아스팔트와, 완속경화형 유화아스팔트로 나누어 지는데, 본 발명에서는 중속경화형 유화아스팔트와 완속경화형 유화아스팔트가 사용된다. 이때, 폐아스팔트골재가 함유되는 혼합물에는 완속경화형 유화아스팔트가 사용된다.The emulsified asphalt is divided into rapid curing emulsion asphalt, medium-hardening emulsion asphalt, and slow-hardening emulsion asphalt according to the adhesion speed with aggregate. At this time, the slow curing emulsion emulsion is used in the mixture containing waste asphalt aggregate.
상기 중속경화형 유화아스팔트는 MS형 유화아스팔트라고도 하며, 유화아스팔트 원재 63~67중량부에 기본수 33~37중량부로 된 것이 사용된다. 상기 완속경화형 유화아스팔트는 SS형 유화아스팔트라고도 하며, 유화아스팔트 원재 58~62중량부에 기본수 38~42중량부로 된 것이 사용된다.The medium-hardening emulsion emulsion is also referred to as MS type emulsion asphalt, and the base water of 33 to 37 parts by weight based on 63 to 67 parts by weight of the emulsion asphalt material is used. The slow curing type emulsion asphalt is also referred to as SS type emulsion asphalt, and the base water of 38 to 42 parts by weight of 58 to 62 parts by weight of an emulsified asphalt raw material is used.
상기 아스팔트원재는 아스팔틴(asphaltene)과 말틴(maltene)이 그 주성분으로 되어 있다. 상기 아스팔틴은 아스팔트에서 분산된 형태(dispersed phase)로 되어 있는 반면, 말틴은 연속적 형태(continuous phase)이다. 상기 아스팔틴은 아스팔트에 경도를 부여하고 상기 말틴은 아스팔트에 점착성과 연성을 부여한다.The asphalt raw material is asphaltene and maltene as its main components. The asphaltenes are in a dispersed phase in asphalt, while maltin is in a continuous phase. The asphaltenes impart hardness to the asphalt and the maltin imparts adhesion and ductility to the asphalt.
상기 유화제는 표면작용제로서 흔히, 계면활성제로 불리는데, 아스팔트 입자를 부유상태로 유지하고 분해시기를 조절하게 되는데, 아스팔트 입자와 물 입자사이의 접촉영역에서 표면장력을 변화시키는 역할을 한다. 종류로는 음이온 유화제, 양이온 유화제, 비이온 유화제가 있다.The emulsifier, commonly referred to as a surfactant, is a surfactant, which maintains the asphalt particles in a suspended state and controls the decomposition time, which serves to change the surface tension in the contact area between the asphalt particles and the water particles. Types include anionic emulsifiers, cationic emulsifiers and nonionic emulsifiers.
가장 많이 사용되는 음이온 유화제는 지방산으로, 이것은 톨유(tall oil), 고송지(rosin), 리그닌(lignin)과 같은 목재의 추출물이며, 수산화나트륨 또는 수산화칼륨과 반응하면 비누로 변한다. 양이온 유화제로는 지방성 아민이 사용되는데, 이 아민은 산(보통 염산)과 반응하여 비누가 된다.The most commonly used anionic emulsifiers are fatty acids, which are extracts of wood such as tall oil, rosin, lignin, and turn into soap when reacted with sodium or potassium hydroxide. Fatty amines are used as cationic emulsifiers, which react with acids (usually hydrochloric acid) to form soaps.
본 발명에서는 양이온 유화제가 함유된 양이온 유화 아스팔트가 사용된다. 양이온 유화아스팔트는 화강암 골재와 친화력이 강하다.In the present invention, a cationic emulsified asphalt containing a cationic emulsifier is used. Cationic emulsified asphalt has affinity with granite aggregates.
본 발명에서 골재와의 혼합시 첨가되는 물, 즉, 골재에 대한 첨가수의 비(이하 "함수비"라 한다.)는 아스팔트혼합물이 양생되었을 시의 강도 및 코팅율에 큰 영향을 미치므로 대단히 중요한 인자로 작용한다. 따라서 골재의 입도와 유화아스팔트의 양에 따라 적절한 양을 첨가해야 한다.In the present invention, the water added when mixing with the aggregate, that is, the ratio of the added water to the aggregate (hereinafter referred to as "water ratio") is very important because it has a great influence on the strength and coating rate when the asphalt mixture is cured. It acts as an argument. Therefore, an appropriate amount should be added according to the particle size of aggregate and the amount of asphalt.
상기 골재는 상기 양이온 유화아스팔트와 찬화력이 큰 화강암 골재를 사용하는 것이 바람직하다. 이때, 골재의 크기에 따라 적절한 양을 첨가해야 한다. 골재의 입도에 따른 첨가량도 수침에 대한 안정도와 마모에 대한 저항도에 큰 영향을 미친다. 대체로 골재는 직경 25mm이하의 골재를 사용한다.It is preferable that the aggregate uses the cationic emulsified asphalt and granite aggregates having a high cooling power. At this time, an appropriate amount should be added according to the size of the aggregate. The addition amount according to the particle size of the aggregate also greatly affects the stability to water soaking and the resistance to abrasion. As a rule, aggregates of less than 25mm in diameter are used.
그리고, 골재는 폐아스팔트 골재도 사용된다. 이때 폐아스팔트 골재는 분쇄기로 직경 6~13mm로 분쇄시킨 것을 사용하게 되는 데, 내부에 유화아스팔트원재를 함유하고 있으므로, 순수한 골재를 첨가하는 경우에 비해 유화아스팔트의 양을 약간 작게 첨가한다.As the aggregate, waste asphalt aggregate is also used. At this time, the waste asphalt aggregate is pulverized to a diameter of 6 ~ 13mm by using a grinder, since it contains an emulsified asphalt raw material therein, the amount of the asphalt is slightly added as compared to the case of adding pure aggregate.
다음에는 본 발명의 바람직한 실시예에 대해 설명한다.Next, a preferred embodiment of the present invention will be described.
[제1실시예][First Embodiment]
유화 아스팔트와 물과 골재로 이루어 지는 상온 유화아스팔트 혼합물은 다음과 같은 조성으로 하며, 중속경화형 유화아스팔트를 사용한다.The room temperature emulsified asphalt mixture composed of emulsified asphalt, water and aggregates has the following composition, and medium-speed hardened emulsified asphalt is used.
즉, 직경 6mm이하의 깬 모래로 된 세골재 45중량부와, 직경6~19mm로 된 중골재 35중량부와, 직경 19~40mm로 된 조골재 20중량부로 이루어진 골재 100중량부와; 상기 골재 100중량부에 대해 물 2중량부와, 상기 골재 100중량부에 대해 중속경화형 유화 아스팔트 6중량부로 한다.That is, 45 parts by weight of fine aggregates made of crushed sand having a diameter of 6 mm or less, 35 parts by weight of heavy aggregates having a diameter of 6 to 19 mm, and 100 parts by weight of aggregates composed of 20 parts by weight of coarse aggregates having a diameter of 19 to 40 mm; 2 parts by weight of water based on 100 parts by weight of the aggregate and 6 parts by weight of medium-hardening emulsified asphalt based on 100 parts by weight of the aggregate.
도1 및 도2는 상기 본 실시예의 조성에서 함수비를 변화시키면서 코팅률과 마샬 안정도를 시험한 결과를 나타낸 그래프이다.1 and 2 are graphs showing the results of testing the coating rate and Marshall stability while changing the water content in the composition of the present embodiment.
도시한 바와 같이, 함수비 2중량부에서 코팅률과 마샬안정도가 최대로 됨을을 알수 있다.As shown, it can be seen that the coating rate and Marshall stability is maximized at a water content of 2 parts by weight.
[제2실시예]Second Embodiment
유화 아스팔트와, 물과, 폐아스팔트골재를 포함한 골재로 이루어 지는 상온 유화아스팔트 혼합물은 다음과 같은 조성으로 하며, 완속경화형 유화아스팔트를 사용한다.The room temperature emulsion asphalt mixture consisting of emulsified asphalt, water, and aggregates including waste asphalt aggregates has the following composition, and uses a slow curing emulsified asphalt.
즉, 직경 6mm이하의 깬 모래로 된 세골재 28중량부와, 직경6~19mm로 된 중골재 27중량부와, 직경 19~40mm로 된 조골재 15중량부와, 직경 25mm이하의 폐아스팔트 골재 30중량부로 이루어진 골재 100중량부와; 상기 골재 100중량부에 대해 물 3~5중량부와, 상기 골재 100중량부에 대해 완속경화형 유화 아스팔트 3~7중량부로 한다.That is, 28 parts by weight of fine aggregates made of crushed sand having a diameter of 6 mm or less, 27 parts by weight of heavy aggregates having a diameter of 6 to 19 mm, 15 parts by weight of coarse aggregates having a diameter of 19 to 40 mm, and 30 weights of waste asphalt aggregates having a diameter of 25 mm or less. 100 parts by weight of aggregate consisting of parts; 3 to 5 parts by weight of water and 3 to 7 parts by weight of slow curing type emulsified asphalt based on 100 parts by weight of the aggregate.
도3 및 도4는 상기 본 실시예의 조성에서 함수비를 변화시키면서 코팅률과 마샬 안정도를 시험한 결과를 나타낸 그래프이다.3 and 4 are graphs showing the results of testing the coating rate and Marshall stability while changing the water content in the composition of the present embodiment.
도시한 바와 같이, 함수비 4중량부에서 코팅률과 마샬안정도가 최대로 됨을을 알수 있다.As shown, at 4 parts by weight of water content it can be seen that the coating rate and Marshall stability is maximized.
[제3실시예]Third Embodiment
유화 아스팔트와, 물과, 폐아스팔트골재를 포함한 골재로 이루어 지는 상온 유화아스팔트 혼합물은 다음과 같은 조성으로 하며, 완속경화형 유화아스팔트를 사용한다.The room temperature emulsion asphalt mixture consisting of emulsified asphalt, water, and aggregates including waste asphalt aggregates has the following composition, and uses a slow curing emulsified asphalt.
즉, 직경 6mm이하의 깬 모래로 된 세골재 22중량부와, 직경6~19mm로 된 중골재 25중량부와, 직경 19~40mm로 된 조골재 13중량부와, 직경 25mm이하의 폐아스팔트 골재 30중량부로 이루어진 골재 100중량부와; 상기 골재 100중량부에 대해 물 3~5중량부와, 상기 골재 100중량부에 대해 완속경화형 유화 아스팔트 3~7중량부로 한다.That is, 22 parts by weight of fine aggregates made of crushed sand having a diameter of 6 mm or less, 25 parts by weight of heavy aggregates having a diameter of 6 to 19 mm, 13 parts by weight of coarse aggregates having a diameter of 19 to 40 mm, and 30 weights of waste asphalt aggregates having a diameter of 25 mm or less 100 parts by weight of aggregate consisting of parts; 3 to 5 parts by weight of water and 3 to 7 parts by weight of slow curing type emulsified asphalt based on 100 parts by weight of the aggregate.
도5 및 도6는 상기 본 실시예의 조성에서 함수비를 변화시키면서 코팅률과 마샬 안정도를 시험한 결과를 나타낸 그래프이다.5 and 6 are graphs showing the results of testing the coating rate and Marshall stability while changing the water content in the composition of the present embodiment.
도시한 바와 같이, 함수비 4중량부에서 코팅률과 마샬안정도가 최대로 됨을을 알수 있다.As shown, at 4 parts by weight of water content it can be seen that the coating rate and Marshall stability is maximized.
[시험방법][Test Methods]
상기 제1, 제2, 제3실시예에서, 코팅률시험은 다음과 같은 방법으로 행한다.In the first, second and third embodiments, the coating rate test is carried out in the following manner.
1. 25mm, 19mm, 13mm, 10mm, 4.74mm 체를 이용하여 쉽게 크기별로 분류될 때까지, 골재를 건조시킨다.1. Dry the aggregates using a 25mm, 19mm, 13mm, 10mm, 4.74mm sieve until they are easily sized.
2. ASTM D 2216 (시험실에서의 흙의 함수비 측정방법)에 따라 공기중에서 건조시킨 골재의 결합된 샘플에 대한 함수비를 측정, 기록한다.2. Measure and record the moisture content for the combined sample of aggregate dried in air in accordance with ASTM D 2216 (Method of Measuring Water Content of Soil in Laboratory).
3. 시험혼합물용으로 공기중에서 건조시킨 현장골재의 단위분량을 충분히 준비한다. 단위분량은 대략 1200g(오븐 건조기준)이어야 한다.3. Prepare sufficient units of field aggregate dried in air for the test mixture. The unit volume should be approximately 1200 g (dry oven).
4. 기계믹서의 혼합용기에 골재 1단위분량을 넣고, 공기중에서 건조된 함수비 이상으로 골재의 건조중량만큼의 물을 혼합한다.4. Add 1 unit of aggregate to the mixing container of the mechanical mixer, and mix water equal to the dry weight of the aggregate above the moisture content dried in air.
5. 유화 아스팔트를 첨가한다.5. Add emulsified asphalt.
6. 4단계에서 첨가된 함수비와 2단계에서 산출된 골재의 함수비를 더하여 혼합시 골재의 유리함수비를 계산한다.6. Calculate the glass water content ratio of aggregates by mixing the water content added in step 4 with the water content of aggregate calculated in step 2.
7. 선풍기를 이용하여 혼합물을 공기 건조시킨다.7. Air dry the mixture using a fan.
8. 아스팔트로 피복된 전체골재의 표면적을 점검하고, 혼합이전 함수비에 대하여 총면적에 대한 백분율로서 코팅률을 구한다.8. Check the surface area of the total aggregate coated with asphalt and determine the coating rate as a percentage of the total area with respect to the water content before mixing.
상기 코팅률 시험방법은 AASHTO NO : T59 에 자세히 개시되어 있다.The coating test method is described in detail in AASHTO NO: T59.
그리고, 상기 제1, 제2, 제3실시예에서, 마샬 안정도 시험은 섭씨 60도의 오븐에서 시료를 몰드내에 두고 48시간 양생한 후, 24시간 양생한 다음 그 강도를 측정한다. 상기 마샬안정도 시험은 KS F 2337 에 자세히 개시되어 있다.And, in the first, second, and third embodiments, the Marshall stability test puts the sample in the mold in an oven at 60 degrees Celsius and cures for 48 hours, then cures for 24 hours, and then measures its strength. The Marshall Stability Test is described in detail in KS F 2337.
본 발명의 상온 유화아스팔트 혼합물에 의하면, 수침에 대한 안정도와 마모에 대한 저항도가 높고, 폐아스팔트를 골재로 사용하면서도 그 안정도와 마모에 대한 저항도가 높아, 도로의 내구성이 높아진다.According to the room temperature emulsified asphalt mixture of the present invention, the stability and resistance to abrasion against water immersion are high, and even though the waste asphalt is used as aggregate, its stability and resistance to abrasion are high, thereby increasing road durability.
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| WO2003018275A1 (en) * | 2001-08-30 | 2003-03-06 | Suhwon Co., Ltd. | Apparatus for manufacturing batch type double mixed cold asphalt mixture and method therefor |
| KR100853082B1 (en) * | 2007-03-15 | 2008-08-19 | 김영신 | Cation type normal temperature asphalt concrete and method thereof that used rubber powder of scrapped tire |
| KR100880030B1 (en) * | 2007-10-01 | 2009-01-22 | 한국석유공업 주식회사 | Binder and ascon composition for rapid repair of pavement |
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| KR101038129B1 (en) * | 2008-06-17 | 2011-05-31 | 황익현 | Method for manufacturing asphalt concrete made from mixture of waste asphalt compound heated at mid-temperature and new asphalt concrete compound heated at high-temperature, and asphalt concrete made by the method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2003018275A1 (en) * | 2001-08-30 | 2003-03-06 | Suhwon Co., Ltd. | Apparatus for manufacturing batch type double mixed cold asphalt mixture and method therefor |
| KR100853082B1 (en) * | 2007-03-15 | 2008-08-19 | 김영신 | Cation type normal temperature asphalt concrete and method thereof that used rubber powder of scrapped tire |
| KR100880030B1 (en) * | 2007-10-01 | 2009-01-22 | 한국석유공업 주식회사 | Binder and ascon composition for rapid repair of pavement |
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