An anticoagulant ice asphalt pavement and its preparation method

Abstract

An anti-icing asphalt pavement and a preparation method thereof, wherein the raw materials of the anti-icing asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin, perfluororubber, and an anti-icing agent; the anti-icing agent contains vanadium boride, fluorinated graphene, diallyldimethylsilane, and eicosyl cocoate. Compared with the prior art, the anti-icing agent of the present invention does not use salts and will not cause the loss of the anti-icing agent. The anti-icing asphalt pavement of the present invention prepares an anti-icing agent through vanadium boride, fluorinated graphene, diallyldimethylsilane, and eicosyl cocoate, and performs structural modification on the anti-icing asphalt pavement through the synergistic effect of polyethersulfone resin and perfluororubber, resulting in high anti-icing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt, and in particular to an anti-icing asphalt pavement and a preparation method thereof. Background Art

[0002] In winter, when it rains and snows, snow and ice on the road surface will significantly reduce the road's anti-skid performance, which can easily lead to traffic accidents. In addition, traditional asphalt pavements have insufficient low-temperature crack resistance, which can easily cause road cracking in extreme winter weather, reducing road performance and service life. Therefore, how to improve the low-temperature performance of asphalt mixtures while solving the problem of snow and ice accumulation on roads has become a focus of attention for scholars at home and abroad.

[0003] At present, the methods of deicing asphalt pavements include mechanical removal, thermal melting, spreading snow-melting agents, etc. This deicing method is time-consuming and labor-intensive, and is prone to environmental pollution. In order to solve the defects of the above-mentioned deicing methods, salt compounds are usually added to the asphalt pavement mixture. The addition of salt compounds can lower the freezing point of water in the asphalt pavement, inhibit the freezing of the asphalt pavement, and significantly reduce the subsequent deicing costs. Therefore, the method of adding salt compounds to the asphalt pavement mixture to reduce the freezing phenomenon of the asphalt pavement has been widely used. The above-mentioned salt compounds commonly used include inorganic salts such as sodium chloride, magnesium chloride, and calcium chloride. These salt compounds can lower the freezing point of water in the asphalt pavement after being dissolved in water, thereby reducing the freezing phenomenon of the asphalt pavement.

[0004] However, conventional salt compounds are usually directly added to asphalt pavement mixtures. As the amount of flowing water in the asphalt pavement increases and as a result of vehicle loads, the salt compounds will flow out with the flow of water, causing the asphalt pavement mixture to lose its anti-icing effect.

[0005] Therefore, in view of the shortcomings of the prior art, it is necessary to provide an anti-ice asphalt pavement and a preparation method to solve the shortcomings of the prior art. Summary of the invention

[0006] One of the purposes of the present invention is to avoid the shortcomings of the prior art and provide an anti-icing asphalt pavement which has high anti-icing performance without using salt compounds.

[0007] The above-mentioned purpose of the present invention is achieved by the following technical measures:

[0008] Provided is an anti-icing asphalt pavement, the raw materials of which contain asphalt, coarse aggregate, fine aggregate, limestone mineral material, polyethersulfone resin, peroxide fluororubber and anti-icing agent.

[0009] The anti-icing agent contains vanadium diboride, fluorinated graphene, diallyldimethylsilane and coconut oil eicosanoid ester.

[0010] For the anti-icing asphalt pavement of the present invention, by weight:

[0011] Asphalt: 20 parts;

[0012] Coarse aggregate: 65 parts to 70 parts;

[0013] Fine aggregate: 10 parts to 15 parts;

[0014] Limestone aggregate: 5 parts to 15 parts;

[0015] Polyethersulfone resin: 3 parts to 5 parts;

[0016] Perfluororubber: 1 part to 5 parts;

[0017] Anti-icing agent: 3 parts to 5 parts.

[0018] In the anti-icing agent, by weight:

[0019] Fluorinated graphene: 10 parts;

[0020] Vanadium diboride: 1 part to 5 parts;

[0021] Diallyldimethylsilane: 5 parts to 10 parts;

[0022] Eicosanyl cocoate: 0.5 part to 2 parts.

[0023] Furthermore, for the anti-icing asphalt pavement of the present invention, by weight:

[0024] Asphalt: 20 parts;

[0025] Coarse aggregate: 67.5 parts;

[0026] Fine aggregate: 12 parts;

[0027] Limestone aggregate: 10.5 parts;

[0028] Polyethersulfone resin: 4 parts;

[0029] Perfluororubber: 3 parts;

[0030] Anti-icing agent: 4.3 parts.

[0031] In the anti-icing agent, by weight:

[0032] Fluorinated graphene: 10 parts;

[0033] Vanadium diboride: 3.5 parts;

[0034] Diallyldimethylsilane: 7 parts;

[0035] Eicosanyl cocoate: 1.2 parts.

[0036] Preferably, the above-mentioned anticoagulant ice agent is prepared by the following steps:

[0037] A1. Stir and mix vanadium boride, diallyldimethylsilane, and eicosanoic acid cocoate to obtain a mixture;

[0038] A2. Add graphene fluoride to the mixture and mix to obtain an anticoagulant ice agent;

[0039] Preferably, the above-mentioned asphalt is matrix asphalt.

[0040] Preferably, the above-mentioned coarse aggregate is crushed stone, and the particle size of the crushed stone is 8 cm to 12 cm.

[0041] Preferably, the above-mentioned fine aggregate is river sand.

[0042] Another object of the present invention is to provide a preparation method of an anticoagulant ice asphalt pavement to avoid the deficiencies of the prior art. The pavement obtained by the preparation method of the anticoagulant ice asphalt pavement has high anticoagulant ice performance.

[0043] The above object of the present invention is achieved by the following technical measures:

[0044] Provide a preparation method of an anticoagulant ice asphalt pavement, including the following steps:

[0045] A1. Mix coarse aggregate, fine aggregate, limestone ore, polyethersulfone resin, and perfluororubber, and heat to 150 °C to 160 °C to obtain a mixture;

[0046] A2. Heat the asphalt to 170 °C to 180 °C, then add it to the mixture, and stir for 10 min to 15 min, and enter A3;

[0047] A3. Add an anticoagulant ice agent and stir for 30 min to 40 min to obtain an anticoagulant ice asphalt pavement.

[0048] For an anticoagulant ice asphalt pavement and its preparation method of the present invention, the raw materials of the anticoagulant ice asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone ore, polyethersulfone resin, perfluororubber, and an anticoagulant ice agent; the anticoagulant ice agent contains vanadium boride, graphene fluoride, diallyldimethylsilane, and eicosanoic acid cocoate. Compared with the prior art, the anticoagulant ice agent of the present invention does not use salts and will not cause the loss of the anticoagulant ice agent. For the anticoagulant ice asphalt pavement of the present invention, an anticoagulant ice agent is prepared by vanadium boride, graphene fluoride, diallyldimethylsilane, and eicosanoic acid cocoate, and the structure of the anticoagulant ice asphalt pavement is modified through the synergistic effect of polyethersulfone resin and perfluororubber, resulting in high anticoagulant ice performance. Specific embodiments

[0049] The technical solution of the present invention will be further described in conjunction with the following embodiments. Unless otherwise specified in the following embodiments, the raw materials used in each embodiment are commercially available products.

[0050] Example 1

[0051] An anticoagulant ice asphalt pavement, having the same other features as in Example 1, the raw materials of the anticoagulant ice asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin, perfluororubber, and an anticoagulant ice agent;

[0052] The anticoagulant ice agent contains vanadium boride, fluorinated graphene, diallyldimethylsilane, and eicosanyl cocoate.

[0053] By weight:

[0054] Asphalt: 20 parts;

[0055] Coarse aggregate: 65 parts;

[0056] Fine aggregate: 10 parts;

[0057] Limestone aggregate: 15 parts;

[0058] Polyethersulfone resin: 5 parts;

[0059] Perfluororubber: 5 parts;

[0060] Anticoagulant ice agent: 3 parts.

[0061] In the anticoagulant ice agent, by weight:

[0062] Fluorinated graphene: 10 parts;

[0063] Vanadium boride: 1 part;

[0064] Diallyldimethylsilane: 10 parts;

[0065] Eicosanyl cocoate: 2 parts.

[0066] The anticoagulant ice agent is prepared by the following steps:

[0067] A1. Stir and mix vanadium boride, diallyldimethylsilane, and eicosanyl cocoate to obtain a mixture;

[0068] A2. Add fluorinated graphene to the mixture and mix to obtain the anticoagulant ice agent.

[0069] The asphalt is matrix asphalt. The coarse aggregate is crushed stone with a particle size of 8 cm to 12 cm; the fine aggregate is river sand.

[0070] The preparation method of the anticoagulant ice asphalt pavement includes the following steps:

[0071] A1. Mix coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin, and perfluororubber, and heat to 150 °C to obtain a mixture;

[0072] A2. Heat asphalt to 170 °C, then add it to the mixture, and stir for 10 min, then proceed to A3;

[0073] A3. Add an anticoagulant ice agent and stir for 30 min to obtain an anticoagulant ice asphalt pavement.

[0074] Example 2

[0075] An anticoagulant ice asphalt pavement, with other features the same as in Example 1, the raw materials of the anticoagulant ice asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin, perfluororubber, and an anticoagulant ice agent;

[0076] The anticoagulant ice agent contains vanadium boride, fluorinated graphene, diallyldimethylsilane, and eicosanyl cocoate.

[0077] By weight:

[0078] Asphalt: 20 parts;

[0079] Coarse aggregate: 70 parts;

[0080] Fine aggregate: 15 parts;

[0081] Limestone aggregate: 5 parts;

[0082] Polyethersulfone resin: 3 parts;

[0083] Perfluororubber: 1 part;

[0084] Anticoagulant ice agent: 5 parts.

[0085] In the anticoagulant ice agent, by weight:

[0086] Fluorinated graphene: 10 parts;

[0087] Vanadium boride: 5 parts;

[0088] Diallyldimethylsilane: 5 parts;

[0089] Eicosanyl cocoate: 0.5 part.

[0090] The anticoagulant ice agent is prepared by the following steps:

[0091] A1. Stir and mix vanadium boride, diallyldimethylsilane, and eicosanyl cocoate to obtain a mixture;

[0092] A2. Add fluorinated graphene to the mixture and mix to obtain the anticoagulant ice agent.

[0093] The asphalt is matrix asphalt. The coarse aggregate is crushed stone with a particle size of 8 cm to 12 cm; the fine aggregate is river sand.

[0094] A preparation method of an anticoicing asphalt pavement includes the following steps:

[0095] A1. Mix the coarse aggregate, fine aggregate, limestone ore, polyethersulfone resin, and perfluororubber, and heat to 160 °C to obtain a mixture.

[0096] A2. Heat the asphalt to 180 °C, then add it to the mixture, and stir for 15 min, then proceed to A3.

[0097] A3. Add an anticoicing agent and stir for 40 min to obtain an anticoicing asphalt pavement.

[0098] Example 3

[0099] An anticoicing asphalt pavement, with other features the same as those in Example 1, and the raw materials of the anticoicing asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone ore, polyethersulfone resin, perfluororubber, and an anticoicing agent.

[0100] The anticoicing agent contains vanadium boride, fluorinated graphene, diallyldimethylsilane, and eicosyl cocoate.

[0101] By weight:

[0102] Asphalt: 20 parts;

[0103] Coarse aggregate: 67.5 parts;

[0104] Fine aggregate: 12 parts;

[0105] Limestone ore: 10.5 parts;

[0106] Polyethersulfone resin: 4 parts;

[0107] Perfluororubber: 3 parts;

[0108] Anticoicing agent: 4.3 parts.

[0109] In the anticoicing agent, by weight:

[0110] Fluorinated graphene: 10 parts;

[0111] Vanadium boride: 3.5 parts;

[0112] Diallyldimethylsilane: 7 parts;

[0113] Eicosyl cocoate: 1.2 parts.

[0114] The anticoicing agent is prepared by the following steps:

[0115] A1. Stir and mix vanadium diboride, diallyldimethylsilane, and eicosyl cocoate to obtain a mixture;

[0116] A2. Add graphene fluoride to the mixture and mix to obtain an anti-icing agent.

[0117] The asphalt is matrix asphalt. The coarse aggregate is crushed stone with a particle size of 8 cm to 12 cm; the fine aggregate is river sand.

[0118] A method for preparing an anti-icing asphalt pavement includes the following steps:

[0119] A1. Mix the coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin, and perfluororubber, and heat to 155 °C to obtain a mixture;

[0120] A2. Heat the asphalt to 177 °C, then add it to the mixture, stir for 12 min, and proceed to A3;

[0121] A3. Add the anti-icing agent and stir for 35 min to obtain an anti-icing asphalt pavement.

[0122] Example 4

[0123] An anti-icing asphalt pavement, the raw materials of the anti-icing asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin, perfluororubber, and anti-icing agent;

[0124] The anti-icing agent contains vanadium diboride, graphene fluoride, diallyldimethylsilane, and eicosyl cocoate.

[0125] By weight:

[0126] Asphalt: 20 parts;

[0127] Coarse aggregate: 66.5 parts;

[0128] Fine aggregate: 13.8 parts;

[0129] Limestone aggregate: 7.4 parts;

[0130] Polyethersulfone resin: 3.5 parts;

[0131] Perfluororubber: 2 parts;

[0132] Anti-icing agent: 3.9 parts.

[0133] In the anti-icing agent, by weight:

[0134] Graphene fluoride: 10 parts;

[0135] Vanadium diboride: 2.9 parts;

[0136] Diallyldimethylsilane: 8.5 parts;

[0137] Eicosanyl cocoate: 0.7 parts.

[0138] The anti-icing agent is prepared by the following steps:

[0139] A1. Stir and mix vanadium boride, diallyldimethylsilane, and eicosanyl cocoate to obtain a mixture;

[0140] A2. Add graphene fluoride to the mixture and mix to obtain the anti-icing agent.

[0141] The asphalt is matrix asphalt. The coarse aggregate is crushed stone with a particle size of 8 cm to 12 cm; the fine aggregate is river sand.

[0142] A method for preparing an anti-icing asphalt pavement includes the following steps:

[0143] A1. Mix the coarse aggregate, fine aggregate, limestone ore, polyethersulfone resin, and perfluororubber, and heat to 157 °C to obtain a mixture;

[0144] A2. Heat the asphalt to 173 °C, then add it to the mixture, stir for 13 min, and proceed to A3;

[0145] A3. Add the anti-icing agent and stir for 34 min to obtain the anti-icing asphalt pavement.

[0146] Comparative Example 1

[0147] An anti-icing asphalt pavement, having the same other features as in Example 3, except that, by weight:

[0148] Asphalt: 20 parts;

[0149] Coarse aggregate: 67.5 parts;

[0150] Fine aggregate: 12 parts;

[0151] Limestone ore: 10.5 parts;

[0152] Polyethersulfone resin: 2 parts;

[0153] Perfluororubber: 3 parts;

[0154] Anti-icing agent: 1 part.

[0155] Comparative Example 2

[0156] An anti-icing asphalt pavement, having the same other features as in Example 3, having the same other features as in Example 3, except that, by weight:

[0157] Asphalt: 20 parts;

[0158] Coarse aggregate: 67.5 parts;

[0159] Fine aggregate: 12 parts;

[0160] Limestone aggregate: 10.5 parts;

[0161] Polyethersulfone resin: 7 parts;

[0162] Perfluororubber: 3 parts;

[0163] Anticoagulant ice agent: 8 parts.

[0164] Comparative Example 3

[0165] An anticoagulant ice asphalt pavement, having the same other features as in Example 3, except that polyethersulfone resin is not added.

[0166] By weight,

[0167] Asphalt: 24 parts;

[0168] Coarse aggregate: 67.5 parts;

[0169] Fine aggregate: 12 parts;

[0170] Limestone aggregate: 10.5 parts;

[0171] Perfluororubber: 3 parts;

[0172] Anticoagulant ice agent: 4.3 parts.

[0173] Moreover, the preparation method of the anticoagulant ice asphalt pavement includes the following steps:

[0174] A1. Mix the coarse aggregate, fine aggregate, limestone aggregate, and perfluororubber, and heat to 155 °C to obtain a mixture;

[0175] A2. Heat the asphalt to 177 °C, then add it to the mixture, and stir for 12 min, then proceed to A3;

[0176] A3. Add the anticoagulant ice agent and stir for 35 min to obtain the anticoagulant ice asphalt pavement.

[0177] Comparative Example 4

[0178] An anticoagulant ice asphalt pavement, having the same other features as in Example 3, except that: the anticoagulant ice agent is not added.

[0179] By weight,

[0180] Asphalt: 20 parts;

[0181] Coarse aggregate: 67.5 parts;

[0182] Fine aggregate: 12 parts;

[0183] Limestone aggregate: 10.5 parts;

[0184] Polyethersulfone resin: 4 parts;

[0185] Perfluororubber: 7.3 parts.

[0186] Preparation method of anticoicing asphalt pavement, comprising the following steps:

[0187] A1. Mix coarse aggregate, fine aggregate, limestone aggregate, polyethersulfone resin and perfluororubber, and heat to 155 °C to obtain a mixture;

[0188] A2. Heat asphalt to 177 °C, then add it to the mixture and stir for 47 min to obtain an anticoicing asphalt pavement.

[0189] Comparative Example 5

[0190] An anticoicing asphalt pavement, having the same other features as in Example 3, except that: perfluororubber is not added.

[0191] By weight,

[0192] Asphalt: 20 parts;

[0193] Coarse aggregate: 67.5 parts;

[0194] Fine aggregate: 12 parts;

[0195] Limestone aggregate: 10.5 parts;

[0196] Polyethersulfone resin: 7 parts;

[0197] Anticoicing agent: 4.3 parts.

[0198] Preparation method of anticoicing asphalt pavement, comprising the following steps:

[0199] A1. Mix coarse aggregate, fine aggregate, limestone aggregate and polyethersulfone resin, and heat to 155 °C to obtain a mixture;

[0200] A2. Heat asphalt to 177 °C, then add it to the mixture and stir for 12 min, and enter A3;

[0201] A3. Add the anticoicing agent and stir for 35 min to obtain an anticoicing asphalt pavement.

[0202] Comparative Example 6

[0203] An anticoicing asphalt pavement, having the same other features as in Example 3, except that: vanadium diboride is not added to the anticoicing agent, and by weight,

[0204] Fluorinated graphene: 13.5 parts;

[0205] Diallyldimethylsilane: 7 parts;

[0206] Eicosanyl cocoate: 1.2 parts.

[0207] The anti-icing agent is prepared by the following steps:

[0208] A1. Stir and mix diallyldimethylsilane and eicosanyl cocoate to obtain a mixture;

[0209] A2. Add graphene fluoride to the mixture and mix to obtain the anti-icing agent.

[0210] Comparative Example 7

[0211] An anti-icing asphalt pavement, having the same other features as in Example 3, except that: diallyldimethylsilane is not added to the anti-icing agent, and by weight,

[0212] Graphene fluoride: 17 parts;

[0213] Vanadium boride: 3.5 parts;

[0214] Eicosanyl cocoate: 1.2 parts.

[0215] The anti-icing agent is prepared by the following steps:

[0216] A1. Stir and mix vanadium boride and eicosanyl cocoate to obtain a mixture;

[0217] A2. Add graphene fluoride to the mixture and mix to obtain the anti-icing agent.

[0218] Comparative Example 8

[0219] An anti-icing asphalt pavement, having the same other features as in Example 3, except that: eicosanyl cocoate is not added to the anti-icing agent, and by weight,

[0220] Graphene fluoride: 11.2 parts;

[0221] Vanadium boride: 3.5 parts;

[0222] Diallyldimethylsilane: 7 parts.

[0223] The anti-icing agent is prepared by the following steps:

[0224] A1. Stir and mix vanadium boride and diallyldimethylsilane to obtain a mixture;

[0225] A2. Add graphene fluoride to the mixture and mix to obtain the anti-icing agent.

[0226] Comparative Example 9

[0227] An anti-icing asphalt pavement, with other features being the same as those in Example 3, except that: graphene fluoride is not added to the anti-icing agent, and by weight,

[0228] Vanadium boride: 6.5 parts;

[0229] Diallyldimethylsilane: 12 parts;

[0230] Eicosanyl cocoate: 3.2 parts.

[0231] The anti-icing agent is prepared by the following steps: Stir and mix vanadium boride and diallyldimethylsilane to obtain the anti-icing agent.

[0232] Performance test

[0233] The anti-icing asphalt pavements prepared in Examples 1 - 4 and Comparative Examples 1 - 9 were subjected to the following performance tests. Among them, the dynamic stability test was carried out according to T0719 - 2011 in JTG E20 - 2011 "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering". The static anti-icing performance was tested by the sponge pulling test. Specifically, Marshall specimens were made from the asphalt mixture. After the sponge was saturated with water, it was placed on the Marshall specimen, and then placed in a freezer (-5°C, -10°C, -15°C) and frozen for 5 h. Then, the sponge was pulled and lifted, and the pulling force when the specimen was completely separated from the sponge was measured. For the dynamic anti-icing performance, after the asphalt mixture was made into specimens, the dynamic stability rutting test was carried out 2000 times to simulate the action of vehicle loads on the road surface; then the specimens were flushed with flowing water for 48 h, and the flow rate of the flowing water was 120 m 3 / h, and the pressure was 3.5 bar to simulate the action of dynamic water pressure on the road surface; then the water on the surface of the specimens was drained, and they were dried at a temperature of 60°C for 24 h; then the sponge pulling test was carried out on the specimens to measure the pulling force when the specimens were completely separated from the sponge. The test results are shown in Table 1 and Table 2.

[0234] Table 1. Performance test results of the anti-icing asphalt pavements in Examples 1 - 4

[0235] Project Example 1 Example 2 Example 3 Example 4 Dynamic stability (times / mm) 4653 4612 4637 4644 Static anti-icing performance (-5℃ / N) 1.23 1.25 1.22 1.27 Static anti-icing performance (-10℃ / N) 3.12 3.16 3.11 3.05 Static anti-icing performance (-15℃ / N) 6.47 6.49 6.41 6.38 Dynamic anti-icing performance (-5℃ / N) 2.24 2.18 2.17 2.11 Dynamic anti-icing performance (-10℃ / N) 3.49 3.44 3.42 3.42 Dynamic anti-icing performance (-15℃ / N) 7.32 7.40 7.29 7.37

[0236] Table 2. Performance test results of the anti-icing asphalt pavements in Comparative Examples 1 - 9

[0237]

[0238] As can be seen from Table 1 and Table 2, compared with the anti-icing asphalt pavements in Comparative Examples 1 to 9, the range of the dynamic stability of the present invention is 4612 times / mm to 4652 times / mm. It can be seen that the anti-icing asphalt pavement of the present invention has high temperature stability, that is, the ability to resist permanent deformation.

[0239] The static anti-icing performance of the anti-icing asphalt pavement of the present invention at -5°C is 1.22 N to 1.27 N, and the dynamic anti-icing performance is 2.11 N to 2.24 N; at -10°C, the static anti-icing performance is 3.05 N to 3.16 N, and the dynamic anti-icing performance is 3.42 N to 3.49 N; at -15°C, the static anti-icing performance is 6.38 N to 6.49 N, and the dynamic anti-icing performance is 7.29 N to 7.40 N. It can be seen that the anti-icing asphalt pavement of the present invention uses vanadium boride, fluorinated graphene, diallyldimethylsilane and eicosanoic acid coconut acid ester in the anti-icing agent, and through the synergistic action of polyethersulfone resin and perfluororubber, the structure of the anti-icing asphalt pavement is modified to produce a high anti-icing performance, significantly improving its anti-icing performance.

[0240] In summary, compared with the prior art, the anti-icing agent of the present invention does not use salts and will not cause the loss of the anti-icing agent. The anti-icing asphalt pavement of the present invention is prepared with an anti-icing agent by vanadium boride, fluorinated graphene, diallyldimethylsilane and eicosanoic acid coconut acid ester, and through the synergistic action of polyethersulfone resin, the structure of the anti-icing asphalt pavement is modified to produce a high anti-icing performance.

[0241] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An anti-ice asphalt pavement, characterized by: The raw materials of the anti-icing asphalt pavement include asphalt, coarse aggregate, fine aggregate, limestone mineral, polyethersulfone resin, peroxide fluororubber and anti-icing agent; The anti-icing agent is composed of vanadium diboride, graphene fluoride, diallyldimethylsilane and coconut oil eicosanoid; In the anti-ice asphalt pavement, by weight, Asphalt: 20 parts; Coarse aggregate: 65-70 parts; Fine aggregate: 10 to 15 parts; Limestone ore: 5 to 15 parts; Polyethersulfone resin: 3 to 5 parts; Fluororubber peroxide: 1 to 5 parts; Anti-icing agent: 3 to 5 parts; In the anti-icing agent, by weight: Fluorinated graphene: 10 parts; Vanadium diboride: 1 to 5 parts; Diallyldimethylsilane: 5 to 10 parts; Cocoyl arachidonic acid ester: 0.5 to 2 parts.

2. The anti-icing asphalt pavement according to claim 1, characterized in that: In the anti-ice asphalt pavement, by weight, Asphalt: 20 parts; Coarse aggregate: 67.5 parts; Fine aggregate: 12 parts; Limestone ore: 10.5 parts; Polyethersulfone resin: 4 parts; Fluororubber peroxide: 3 parts; Anti-icing agent: 4.3 parts.

3. The anti-icing asphalt pavement according to claim 2 is characterized in that: In the anti-icing agent, by weight: Fluorinated graphene: 10 parts; Vanadium diboride: 3.5 parts; Diallyldimethylsilane: 7 parts; Cocoyl Eicosanate: 1.2 parts.

4. The anti-icing asphalt pavement according to claim 3, characterized in that: The anti-icing agent is prepared by the following steps: A1, mixing vanadium diboride, diallyldimethylsilane and cocoyl eicosanoate to obtain a mixture; A2. Adding fluorinated graphene to the mixture to obtain an anti-icing agent.

5. The anti-icing asphalt pavement according to claim 1, characterized in that: The asphalt is base asphalt.

6. The anti-icing asphalt pavement according to claim 1, characterized in that: The coarse aggregate is crushed stone, and the particle size of the crushed stone is 8cm to 12cm.

7. The anti-icing asphalt pavement according to claim 1, characterized in that: The fine aggregate is river sand.

8. A method for preparing an anti-icing asphalt pavement according to any one of claims 1 to 7, characterized in that: The steps include: A1. Mix coarse aggregate, fine aggregate, limestone ore, polyethersulfone resin and fluoroperoxide rubber, and heat to 150° C. to 160° C. to obtain a mixture; A2: Heat the asphalt to 170℃~180℃, then add it to the mixture, stir for 10min~15min, and then enter A3; A3. Add anti-icing agent and stir for 30 to 40 minutes to obtain anti-icing asphalt pavement.

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