CN114316505A - Decolorized cold patch asphalt and preparation method thereof, reactive high-performance colored asphalt cold patch material and preparation method and use method thereof - Google Patents
Decolorized cold patch asphalt and preparation method thereof, reactive high-performance colored asphalt cold patch material and preparation method and use method thereof Download PDFInfo
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- CN114316505A CN114316505A CN202210007473.9A CN202210007473A CN114316505A CN 114316505 A CN114316505 A CN 114316505A CN 202210007473 A CN202210007473 A CN 202210007473A CN 114316505 A CN114316505 A CN 114316505A
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Landscapes
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Abstract
The invention belongs to the technical field of road building materials and engineering, and provides decolored cold patch asphalt and a preparation method thereof, and a reactive high-performance colored asphalt cold patch material and a preparation method and a use method thereof. The decolored cold patch asphalt takes the natural oil and the derivatives thereof as the first softener, and the natural oil and the derivatives thereof have good compatibility with the binder petroleum resin and the derivatives thereof and have physical plasticizing effect similar to that of petroleum softeners. Meanwhile, the natural oil and the derivatives thereof contain functional group structures, and under the action of an initiator, the internal functional group structures are subjected to cross-linking polymerization reaction and solidification after being rolled and formed in the air and moisture environment, so that the early strength is quickly formed, and the later strength is high; when the decolored cold patch asphalt is applied to the reactive high-performance colored asphalt cold patch, the early strength and the later strength of the reactive high-performance colored asphalt cold patch can be improved.
Description
Technical Field
The invention relates to the technical field of road building materials and engineering, in particular to decolored cold patch asphalt and a preparation method thereof, and a reactive high-performance colored asphalt cold patch material and a preparation method and a use method thereof.
Background
The colorful road surface has rich colors, can play a role in guiding and reminding vehicles on special motor vehicle lane sections (such as bus lanes, intersections and tunnel portals), and plays a role in beautifying the environment, coordinating surrounding scenery and improving the urban quality in urban spaces such as non-motor vehicle lanes, pedestrian walks, parks and the like. The common techniques for the color pavement at present comprise hot-paving color asphalt pavement, decolored asphalt cold-patch color asphalt pavement, cold-patch cold-paving color surface treatment layer (paint coating, color-mixing covering layer of adhesives such as polyurethane, epoxy and the like), cold-paving epoxy resin color pavement and the like. The production process of the hot-laid colored asphalt pavement has high energy consumption, special vehicles are required for transportation, and the transportation is difficult in urban spaces with inconvenient traffic conditions. The cold-patch cold-spread colorful surface treatment layer (a paint coating, a polyurethane, epoxy and other binder color-mixing covering layer and the like) and the cold-spread epoxy resin colorful pavement and the like overcome the technical problem that the hot-spread colorful asphalt pavement is difficult to transport, but the cost of raw materials is high, and the application of the hot-spread colorful asphalt pavement is limited. At present, the common colored asphalt pavement is mainly a decolored asphalt cold patch colored asphalt pavement, but the existing decolored asphalt cold patch colored asphalt pavement uses petroleum softeners (such as aliphatic hydrocarbon oil, naphthenic oil, aromatic hydrocarbon oil, diesel oil and the like), and the softeners only play a role in external plasticization of molecules, so that the early strength and the later strength of the decolored asphalt cold patch colored asphalt pavement are low.
Disclosure of Invention
In view of the above, the invention aims to provide a decolored cold patch asphalt and a preparation method thereof, a reactive high-performance colored asphalt cold patch material and a preparation method and a use method thereof. The decolored cold patch asphalt provided by the invention can enable the reactive high-performance colored asphalt cold patch to have excellent early strength and later strength.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides decolored cold patch asphalt which comprises the following components in parts by weight:
30-70 parts of a binder, 20-60 parts of a first softener, 3-6 parts of a second softener, 2-3 parts of a tackifier and 3-6 parts of an initiator;
the binder comprises petroleum resin and derivatives thereof;
the first softening agent comprises natural oil and derivatives thereof;
the second softener comprises dioctyl phthalate and/or dibutyl phthalate.
Preferably, the natural oil comprises one or more of camellia oil, peony seed oil, palm oil, walnut oil, coconut oil and olive oil; the natural oil derivatives comprise stearic acid and/or palmitic acid.
Preferably, the tackifier comprises a terpene resin and/or a rosin resin.
Preferably, the initiator comprises glycidoxypropyltrimethoxysilane and/or aminopropyltriethoxysilane.
The invention also provides a preparation method of the decolored cold patch asphalt, which comprises the following steps:
heating the binder to obtain a liquid binder;
mixing the liquid binder, the tackifier and the second softener to obtain a first mixed solution;
and after the first mixed solution is developed, mixing the first mixed solution with an initiator and a first softening agent to obtain the decolored cold patch asphalt.
The invention also provides a reaction type high-performance colored asphalt cold-patch material, which comprises the following components in parts by weight:
100 parts of mineral aggregate and 4.0-7.5 parts of asphalt;
the mineral aggregate comprises aggregate, filler and pigment;
the mass ratio of the aggregate to the filler to the pigment is (93-98): (1-3): (1-4);
the asphalt is the decolored cold patch asphalt in the technical scheme or the decolored cold patch asphalt obtained by the preparation method in the technical scheme.
Preferably, the aggregate comprises graded mineral aggregate; the graded mineral aggregate comprises AC-class graded mineral aggregate, SMA-class graded mineral aggregate or OGFC-class graded mineral aggregate.
Preferably, the filler comprises cement and/or slaked lime.
The invention also provides a preparation method of the reaction type high-performance colored asphalt cold-patch material, which comprises the following steps:
and carrying out first mixing on aggregate, adding asphalt for second mixing, adding filler and pigment for third mixing, and obtaining the reactive high-performance colored asphalt cold-patch material.
The invention also provides a use method of the reaction type high-performance colored asphalt cold-patch material, which comprises the following steps:
after cleaning the pit slot, spreading the reaction type high-performance colored asphalt cold-patch material on an operation surface, spraying water on the reaction type high-performance colored asphalt cold-patch material, and compacting;
the amount of the water is 2.5-4L of water sprayed on each 25kg of the reactive high-performance colored asphalt cold-patch material.
The invention provides decolored cold patch asphalt which comprises the following components in parts by weight: 30-70 parts of a binder, 20-60 parts of a first softener, 3-6 parts of a second softener, 2-3 parts of a tackifier and 3-6 parts of an initiator; the binder comprises petroleum resin and derivatives thereof; the first softening agent comprises natural oil and derivatives thereof; the second softener comprises dioctyl phthalate and/or dibutyl phthalate. The decolored cold patch asphalt takes the natural oil and the derivatives thereof as the first softener, and the natural oil and the derivatives thereof have good compatibility with the binder petroleum resin and the derivatives thereof and have physical plasticizing effect similar to that of petroleum softeners. Meanwhile, the natural oil and the derivatives thereof contain functional group structures, and under the action of an initiator, the internal functional group structures are subjected to cross-linking polymerization reaction and solidification after being rolled and formed in the air and moisture environment, so that the early strength is quickly formed, and the later strength is high; when the decolored cold patch asphalt is applied to the reactive high-performance colored asphalt cold patch, the early strength and the later strength of the reactive high-performance colored asphalt cold patch can be improved. In addition, the natural oil and the derivatives thereof contain polar groups, and the polar force of the polar groups can change the polar force of the chain ends of the side chains of the petroleum resin molecules in the petroleum resin and the derivatives thereof, so that the polar force can invade the polar chain ends of the petroleum resin molecular chains, the polar force of the petroleum resin molecular chains is reduced, the petroleum resin molecules are stabilized, the mutual moving capability of the petroleum resin molecules is improved, and the fluidity of the decolored cold patch asphalt is improved.
The invention also provides a preparation method of the decolored cold patch asphalt, which comprises the following steps: heating the binder to obtain a liquid binder; mixing the liquid binder, the tackifier and the second softener to obtain a first mixed solution; and after the first mixed solution is developed, mixing the first mixed solution with an initiator and a first softening agent to obtain the decolored cold patch asphalt. The preparation method provided by the invention is simple to operate and easy to industrialize.
The invention also provides a reaction type high-performance colored asphalt cold-patch material, which comprises the following components in parts by weight: 100 parts of mineral aggregate and 4.0-7.5 parts of asphalt; the mineral aggregate comprises aggregate, filler and pigment; the mass ratio of the aggregate to the filler to the pigment is (93-98): (1-3): (1-4); the asphalt is the decolored cold patch asphalt in the technical scheme or the decolored cold patch asphalt obtained by the preparation method in the technical scheme. The use of the decolored cold patch asphalt improves the early strength and the later strength of the reactive high-performance colored asphalt cold patch. As the crosslinking and solidification of the asphalt component in the reaction type high-performance colored asphalt cold-patch material need to be assisted by air and moisture, the reaction type high-performance colored asphalt cold-patch material provided by the invention can be constructed in a humid and water-logging environment, so that the construction period is controllable, and the construction and the maintenance are extremely convenient.
Furthermore, the asphalt in the reactive high-performance colored asphalt cold-patch material can be matched with aggregates in various grading forms, so that the applicability is strong; can prepare reactive high-performance colored asphalt cold-patch materials with various compactness.
The invention also provides a preparation method of the reaction type high-performance colored asphalt cold-patch material, which comprises the following steps: and carrying out first mixing on aggregate, adding asphalt for second mixing, adding filler and pigment for third mixing, and obtaining the reactive high-performance colored asphalt cold-patch material. The preparation method is simple to operate and only needs to mix; the reaction type high-performance color asphalt cold-patch material obtained by mixing is bagged, can be stored and transported in various modes, is convenient and flexible, can easily reach various construction occasions such as limited space and the like, and can enable the construction site to be neat and ordered.
The invention also provides a use method of the reaction type high-performance colored asphalt cold-patch material, which comprises the following steps: after cleaning the pit slot, spreading the reaction type high-performance colored asphalt cold-patch material on an operation surface, spraying water on the reaction type high-performance colored asphalt cold-patch material, and compacting; the amount of the water is 2.5-4L of water sprayed on each 25kg of the reactive high-performance colored asphalt cold-patch material. The using method provided by the invention is simple to operate and convenient to maintain.
Detailed Description
The invention provides decolored cold patch asphalt which comprises the following components in parts by weight:
30-70 parts of a binder, 20-60 parts of a first softener, 3-6 parts of a second softener, 2-3 parts of a tackifier and 3-6 parts of an initiator;
the binder comprises petroleum resin and derivatives thereof;
the first softening agent comprises natural oil and derivatives thereof;
the second softener comprises dioctyl phthalate and/or dibutyl phthalate.
In the present invention, unless otherwise specified, the starting materials used in the present invention are preferably commercially available products,
the decolored cold patch asphalt provided by the invention comprises 30-70 parts by weight of binder, preferably 40-65 parts by weight, more preferably 45-55 parts by weight, and even more preferably 50 parts by weight. In the present invention, the binder includes petroleum resin and its derivatives. In the present invention, the petroleum resin preferably includes C9 petroleum resin and/or C5 petroleum resin. In the present invention, the petroleum resin derivative is preferably a binder mainly composed of a petroleum resin; in a specific embodiment of the present invention, the binding material mainly composed of petroleum resin preferably includes discolored asphalt of hongmian cotta synthetic material ltd.
The decolored cold patch asphalt provided by the invention comprises 20-60 parts by weight of a first softening agent, preferably 30-50 parts by weight of a first softening agent, and more preferably 35-45 parts by weight of a binder. In the present invention, the first softening agent includes natural oils and fats and derivatives thereof. In the present invention, the natural oil preferably includes one or more of camellia oil, peony seed oil, palm oil, walnut oil, coconut oil, and olive oil. In the present invention, the natural oil derivative preferably includes stearic acid and/or palmitic acid. In the invention, the natural oil and the derivatives thereof have good compatibility with the binder petroleum resin and the derivatives thereof, have physical plasticizing effect similar to petroleum softeners, and simultaneously contain functional group structures, and under the action of an initiator, the internal functional group structures are subjected to cross-linking polymerization reaction and solidification after being rolled and formed in air and moisture environments, so that the early strength is quickly formed, and the later strength is high; when the decolored cold patch asphalt is applied to the reactive high-performance colored asphalt cold patch, the early strength and the later strength of the reactive high-performance colored asphalt cold patch can be improved. In addition, the natural oil and the derivatives thereof contain polar groups, and the polar force of the polar groups can change the polar force of the chain ends of the side chains of the petroleum resin molecules in the petroleum resin and the derivatives thereof, so that the polar force can invade the polar chain ends of the petroleum resin molecular chains, the polar force of the petroleum resin molecular chains is reduced, the petroleum resin molecules are stabilized, the mutual moving capability of the petroleum resin molecules is improved, and the fluidity of the decolored cold patch asphalt is improved.
The decolored cold patch asphalt provided by the invention comprises 3-6 parts by weight of a second softening agent, preferably 3.5-5.5 parts by weight, and more preferably 4-5 parts by weight based on the weight of a binder. In the present invention, the second softener includes dioctyl phthalate and/or dibutyl phthalate. In the invention, the second softener can ensure that the decolored cold patch asphalt has good flexibility and good compatibility with petroleum resin and derivatives thereof, and plays a role in softening and plasticizing in the reactive high-performance colored asphalt cold patch.
The decolored cold patch asphalt provided by the invention comprises 2-3 parts by weight of tackifier, and more preferably 2.5 parts by weight of tackifier. In the present invention, the tackifier preferably includes a terpene resin and/or a rosin resin. The tackifier disclosed by the invention has the advantages of strong tackifying property, stability to oxygen, heat and light, good weather resistance, good intermiscibility with petroleum resin and derivatives thereof, and capability of enhancing the adhesive force and high-temperature stability of the decolored cold patch asphalt.
The decolored cold patch asphalt provided by the invention comprises 3-6 parts by weight of initiator, preferably 3.5-5.5 parts by weight, and more preferably 4-5 parts by weight based on the weight of the binder. In the present invention, the initiator preferably includes glycidoxypropyltrimethoxysilane and/or aminopropyltriethoxysilane. In the invention, the initiator can excite the functional group structure in the natural oil to carry out polymerization crosslinking reaction in the presence of air and water so as to be cured.
The invention also provides a preparation method of the decolored cold patch asphalt, which comprises the following steps:
heating the binder to obtain a liquid binder;
mixing the liquid binder, the tackifier and the second softener to obtain a first mixed solution;
and after the first mixed solution is developed, mixing the first mixed solution with an initiator and a first softening agent to obtain the decolored cold patch asphalt.
The invention heats the binder to obtain the liquid binder. In the invention, the heating temperature of the binder is preferably 60-80 ℃. After the binder is heated, preferably, the temperature is continuously increased to 150-180 ℃, and the liquid binder is obtained for later use.
After the liquid binder is obtained, the liquid binder, the tackifier and the second softener are mixed to obtain a first mixed solution. In the present invention, the manner of mixing the liquid binder, the tackifier and the second softening agent preferably includes abrasive dispersion; the rotation speed of the grinding dispersion is preferably 6000-8000 rpm; the temperature is preferably 150-180 ℃, and further preferably 160 ℃; the time is preferably 2 h. In the present invention, the particle size of the first mixed solution is preferably in the order of micrometers.
After the first mixed solution is obtained, the first mixed solution is developed and then is mixed with an initiator and a first softening agent to obtain the decolored cold patch asphalt. In the invention, the development temperature is preferably 150-180 ℃, and more preferably 160 ℃; the development time is preferably 2 h. In the present invention, the manner of mixing the developmental material, initiator and first softener resulting from the development preferably comprises shear dispersion; the rotation speed of the shear dispersion is preferably 3000-3500 rpm, and the time is preferably 1 h.
The invention also provides a reaction type high-performance colored asphalt cold-patch material, which comprises the following components in parts by weight:
100 parts of mineral aggregate and 4.0-7.5 parts of asphalt;
the mineral aggregate comprises aggregate, filler and pigment;
the mass ratio of the aggregate to the filler to the pigment is (93-98): (1-3): (1-4);
the asphalt is the decolored cold patch asphalt in the technical scheme or the decolored cold patch asphalt obtained by the preparation method in the technical scheme.
The reactive high-performance colored asphalt cold-patch material provided by the invention comprises 100 parts of mineral aggregate by weight. In the present invention, the mineral aggregate includes aggregate, filler and pigment; the mass ratio of the aggregate to the filler to the pigment is (93-98): (1-3): (1-4), preferably (95-97): (1.5-2.5): (1.5-2.5).
In the present invention, the aggregate preferably comprises graded mineral aggregate; the graded mineral aggregate preferably comprises an AC-type graded mineral aggregate, an SMA-type graded mineral aggregate or an OGFC-type graded mineral aggregate. The reactive high-performance colored asphalt cold-patch material can use aggregates with various particle size grades, and further can prepare reactive high-performance colored asphalt cold-patch materials with various compactness.
In the present invention, the filler preferably comprises cement and/or slaked lime. In the present invention, the cement preferably comprises 425 ordinary portland cement and/or 425 complex portland cement. In the present invention, the filler has a filling and anti-flaking effect.
In the present invention, the pigment preferably comprises an inorganic pigment and/or an organic pigment. The types of the organic pigment and the inorganic pigment are not particularly limited and can be selected according to actual needs.
The reactive high-performance colored asphalt cold-patch material provided by the invention comprises 4.0-7.5 parts by weight of asphalt, preferably 4.5-7.0 parts by weight, more preferably 5.0-6.5 parts by weight, and even more preferably 5.5-6.0 parts by weight of mineral aggregate. In the invention, the asphalt is preferably the decolored cold patch asphalt described in the above technical scheme or the decolored cold patch asphalt obtained by the preparation method described in the above technical scheme.
The invention also provides a preparation method of the reaction type high-performance colored asphalt cold-patch material, which comprises the following steps:
and carrying out first mixing on aggregate, adding asphalt for second mixing, adding filler and pigment for third mixing, and obtaining the reactive high-performance colored asphalt cold-patch material.
In the present invention, the temperature of the aggregate is preferably 90 to 130 ℃, and more preferably 110 ℃. In the present invention, the time for the first mixing is preferably 0.5 to 1 min.
In the invention, the temperature of the asphalt is preferably 60-80 ℃, and more preferably 70 ℃; in the present invention, the time for the second mixing is preferably 0.5 to 1 min.
In the present invention, the temperature of the filler and pigment is preferably normal temperature, i.e., neither additional heating nor additional cooling is required. In the present invention, the time for the third mixing is preferably 0.5 to 1 min.
After the third mixing, the invention preferably further comprises discharging; the temperature of the discharged material is preferably 80-110 ℃.
In the invention, the preparation method of the reactive high-performance colored asphalt cold-patch material is preferably carried out in a horizontal stirring pot.
The preparation method of the reactive high-performance colored asphalt cold-patch material provided by the invention has the advantages of low temperature, small interference on color difference of the pigment and more controllable color of the prepared finished product.
The invention also provides a use method of the reaction type high-performance colored asphalt cold-patch material, which comprises the following steps:
after the pit and the groove are cleaned, the reaction type high-performance colored asphalt cold-patch material is spread on an operation surface, and water is sprayed on the reaction type high-performance colored asphalt cold-patch material to be compacted.
The method for cleaning the pit is not particularly limited, and the method for cleaning the pit is known to those skilled in the art.
In the invention, the amount of the spraying water is preferably 2.5-4L of water per 25kg of the reactive high-performance colored asphalt cold-patch material.
In the present invention, the compaction is preferably effected by means of a roller or a tamper plate.
The decolorized cold patch asphalt and the preparation method thereof, the reactive high-performance colored asphalt cold patch material and the preparation method and the use method thereof provided by the invention are described in detail below with reference to the examples, but the invention is not to be construed as being limited by the scope of the invention.
Examples
The formulas of the decolored cold patch asphalt and the reactive high-performance colored asphalt cold patch material in the examples are shown in Table 1.
Table 1 shows the formulas of the decolorized cold-patch asphalt and the reactive high-performance colored asphalt cold-patch material in the examples
The preparation method of the decolored cold patch asphalt of the embodiment 1-5 comprises the following steps:
heating the adhesive until the adhesive is in a liquid state, and continuously heating to 160 ℃ for standby.
Adding weighed tackifier and second softening agent into liquid binder, dispersing and mixing at high speed, milling at shearing rate of 7000rpm for 2 hr with colloid mill, and grinding to micrometer level to obtain first mixed solution.
And (3) keeping the temperature of the first mixed solution at 160 ℃ for 2h, adding the weighed initiator and the first softener into the first mixed solution, and dispersing the mixture by adopting a shearing and stirring mode, wherein the shearing rate is 3000rpm, and the shearing time is 1h to obtain the decolored cold patch asphalt.
The preparation method of the reactive high-performance colored asphalt cold-patch material of the embodiment 1-5 comprises the following steps:
firstly adding aggregate at 110 ℃, stirring for 1min in a horizontal stirring pot, adding decolored cold-patch asphalt at 70 ℃, stirring for 1min, adding normal-temperature filler and pigment, stirring for 1min, and discharging at 80-110 ℃ to obtain the reactive high-performance colored asphalt cold-patch material.
Comparative example 1
The hot-mix colorful AC-13 comprises the following components in percentage by weight:
97.5 parts of AC-13 graded aggregate, 2.5 parts of pigment and 5.1 parts of Haichuan OP-70 decolored asphalt; heating the aggregate to 170-190 ℃, heating the decolored asphalt to 150-165 ℃, and producing the pigment on a mixing machine at normal temperature. The feeding sequence is similar to that of the invention, the discharging temperature is 160-180 ℃, and the heat preservation is needed to be carried out and the use is finished within 4 hours.
Comparative example 2
The components and the preparation method of the general color cold-patch material are as follows:
97.5 parts of LB-13-grade aggregate, 2.5 parts of pigment, 5 parts of decolored cold patch asphalt (wherein: 78 parts of Ishikawa OP-70 decolored asphalt, 20 parts of diesel oil and 2 parts of ET-660 cold patch agent are uniformly mixed and then heated to 80 +/-10 ℃) and then used, the aggregate is heated to 90-130 ℃, the decolored cold patch asphalt is heated to 60-80 ℃, the pigment is at normal temperature, the production process is similar to the invention, the discharging temperature is 90-110 ℃, and the mixture is discharged and packaged in a sealing bag for use. Because the cold-patch agent in the decolored cold-patch asphalt can form strength only after being volatilized, the grading type can only be made into an LB type, the void ratio is higher, and the volatilization is convenient.
The performance test of the feed materials obtained in examples 1 to 5 and comparative examples 1 to 2 is shown in Table 2.
TABLE 2 results of performance test of the supplement materials obtained in examples 1 to 5 and comparative examples 1 to 2
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The decolored cold patch asphalt is characterized by comprising the following components in parts by weight:
30-70 parts of a binder, 20-60 parts of a first softener, 3-6 parts of a second softener, 2-3 parts of a tackifier and 3-6 parts of an initiator;
the binder comprises petroleum resin and derivatives thereof;
the first softening agent comprises natural oil and derivatives thereof;
the second softener comprises dioctyl phthalate and/or dibutyl phthalate.
2. The decolored cold patch asphalt of claim 1, wherein the natural oil comprises one or more of camellia oil, peony seed oil, palm oil, walnut oil, coconut oil and olive oil; the natural oil derivatives comprise stearic acid and/or palmitic acid.
3. The decolourized cold patch asphalt according to claim 1, wherein the tackifier comprises terpene resin and/or rosin resin.
4. A decolourised cold-patch asphalt according to claim 1, characterised in that the initiator comprises glycidoxypropyltrimethoxysilane and/or aminopropyltriethoxysilane.
5. A preparation method of decolored cold patch asphalt according to any one of claims 1 to 4, which is characterized by comprising the following steps:
heating the binder to obtain a liquid binder;
mixing the liquid binder, the tackifier and the second softener to obtain a first mixed solution;
and after the first mixed solution is developed, mixing the first mixed solution with an initiator and a first softening agent to obtain the decolored cold patch asphalt.
6. The reaction type high-performance colored asphalt cold-patch material is characterized by comprising the following components in parts by weight:
100 parts of mineral aggregate and 4.0-7.5 parts of asphalt;
the mineral aggregate comprises aggregate, filler and pigment;
the mass ratio of the aggregate to the filler to the pigment is (93-98): (1-3): (1-4);
the asphalt is the decolored cold patch asphalt of any one of claims 1 to 4 or the decolored cold patch asphalt obtained by the preparation method of claim 5.
7. The reactive high-performance colored asphalt cold patch according to claim 6, wherein the aggregate comprises graded mineral aggregate; the graded mineral aggregate comprises AC-class graded mineral aggregate, SMA-class graded mineral aggregate or OGFC-class graded mineral aggregate.
8. The reactive high performance colored asphalt coldfill material of claim 6, wherein the filler comprises cement and/or slaked lime.
9. The preparation method of the reactive high-performance colored asphalt cold-patch material according to any one of claims 6 to 8, which is characterized by comprising the following steps:
and carrying out first mixing on aggregate, adding asphalt for second mixing, adding filler and pigment for third mixing, and obtaining the reactive high-performance colored asphalt cold-patch material.
10. The use method of the reactive high-performance colored asphalt cold-patch material as claimed in any one of claims 6 to 8, comprising the following steps:
after cleaning the pit slot, spreading the reaction type high-performance colored asphalt cold-patch material on an operation surface, spraying water on the reaction type high-performance colored asphalt cold-patch material, and compacting;
the amount of the water is 2.5-4L of water sprayed on each 25kg of the reactive high-performance colored asphalt cold-patch material.
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Application publication date: 20220412 |