A low temperature resistant asphalt waterproof material and construction method thereof

Abstract

The present application provides a low-temperature resistant asphalt waterproof material and a construction method thereof, which includes a bonding layer, an aggregate and a thermal insulation layer. After the base asphalt is modified by using a viscosity modifier and an antifreeze modifier, the bonding layer and the aggregate are used together for laying, and then the thermal insulation layer is laid. This not only greatly improves the bonding strength among the bonding layer, the aggregate and the thermal insulation layer, but also makes the modified polycarbonate have low-temperature resistance and anti-cracking properties after the pavement is laid, thereby extending the service life of the pavement and reducing the cost of highway maintenance. It has the advantages of obvious low-temperature anti-cracking effect and low implementation cost.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction materials, and in particular relates to a low-temperature resistant asphalt waterproof material and a construction method thereof. Background Art

[0002] In recent years, with the rapid development of the scale of high-grade highway construction in my country, the status of pavement maintenance technology in national infrastructure construction has become increasingly prominent. However, the use of existing asphalt materials is affected by climatic conditions and the use of the road surface, especially the road surface with heavy traffic load, which often has serious road damage and hidden dangers to driving safety; furthermore, in cold areas, the road surface shrinks repeatedly due to temperature changes on winter nights, resulting in vertical cold cracks on the road surface; the result of a large amount of continuous mechanical stress generated by high traffic load on the road surface is that the road surface performance produces mechanical fatigue, resulting in fatigue fractures like crocodile skin; low-temperature cracks generated by asphalt pavement during its service life are a common problem at present. Due to the existence of cracks, the performance of the road surface is reduced. Studies have shown that the low-temperature performance of asphalt contributes 80% to the low-temperature cracking of the road surface. The low-temperature cracking of the asphalt pavement is caused by the fact that the asphalt becomes hard and brittle at low temperatures and has poor deformation ability. If asphalt with good flowability is selected at low temperatures, temperature cracks can be reduced. There is an urgent need for a low-temperature resistant asphalt waterproof material with excellent low-temperature resistance and not easy to crack in a low-temperature environment. Summary of the invention

[0003] In order to solve the technical problem that the existing asphalt materials generally suffer from low-temperature freezing cracking after paving, the present invention proposes a low-temperature resistant asphalt waterproof material that can significantly improve the low-temperature performance of the asphalt material;

[0004] The second object of the present invention is to provide a construction method of low-temperature resistant asphalt waterproof material.

[0005] In order to achieve the first purpose, this application adopts the following scheme:

[0006] A low-temperature resistant asphalt waterproof material, comprising a bonding layer, an aggregate and a thermal insulation layer which are spread in sequence, wherein the bonding layer is composed of the following components in parts by weight:

[0007]

[0008] The viscosity modifier is composed of the following components in parts by weight:

[0009] SBS modifier 8-12 parts

[0010] 3-5 parts of modified tert-butyl phenolic resin

[0011] 4-6 parts of polyurethane modified acrylic resin;

[0012] The antifreeze modifier is modified polycarbonate, and the modification method of the modified polycarbonate comprises the following steps: putting glass fiber modified plastic steel fiber into polycarbonate, stirring for 12-25 minutes at 200-500rpm and 40-50℃, and the mass ratio of the glass fiber modified plastic steel fiber to the polycarbonate is 1:3-5; preferably, the glass fiber modified plastic steel fiber is obtained by mixing plastic steel fiber and glass fiber at 80-110℃; more preferably, the mass ratio of the glass fiber to the plastic steel fiber is 1:5-6, the diameter of the glass fiber is 6-13μm, the diameter of the glass fiber modified plastic steel fiber is 10-15μm, and the aspect ratio is 3-5:1. The modified plastic steel fiber provides more adhesion sites for the matrix asphalt, the shrinkage capacity of the matrix asphalt decreases, and the low-temperature anti-cracking performance is significantly improved. .

[0013] The matrix asphalt is preferably No. 70 asphalt, and the polyurethane modified acrylic resin is a polyurethane modified acrylic resin prepared by grafting a polyurethane group onto a side chain of an acrylic resin. The preparation method thereof comprises the following steps: adding polyurethane and acrylic resin in a mass ratio of 1:6 into a stirring kettle in sequence, and stirring at 40-50°C and 300-450rpm for 20-30min to obtain a viscosity modifier to enhance the molecular polarity between the matrix asphalt and the antifreeze modifier, thereby increasing the van der Waals force between polymers, thereby increasing the cohesive force in the bonding layer system, and exhibiting more excellent mechanical properties under low temperature conditions. The antifreeze modifier is a polycarbonate obtained by modifying glass fiber-modified plastic steel, which has excellent tensile strength. Performance, the tensile elongation after curing is as high as 500%-1000%. For the base asphalt modified with viscosity modifier and antifreeze modifier, under low temperature conditions, on the one hand, the viscosity modifier improves the cohesion of the bonding layer, the bonding force between the components, and the overall toughness of the bonding layer; on the other hand, the polycarbonate in the antifreeze modifier has high strength and elastic coefficient, high impact strength, good fatigue resistance, good dimensional stability, and small creep. After modification by modified plastic steel, it not only maintains the original advantages, but also further improves its weather resistance and mechanical strength. When the bonding layer is used in combination with aggregate, under low temperature conditions, the modified plastic steel fiber provides more adhesion sites for the base asphalt, the shrinkage capacity of the base asphalt decreases, and the low-temperature anti-cracking performance is significantly improved.

[0014] Preferably, the thermal insulation layer is composed of the following components by weight:

[0015]

[0016] Preferably, the total nano-modified particles of the thermal insulation layer are composed of the following components by weight:

[0017]

[0018] Preferably, the particle size of the waste ceramic tile nanoparticles is 120-150nm, and the SiO 2 Nanoparticles, CaCO 3 Nanoparticles and Fe 3 O 4 The particle size of the nanoparticles is 50-100 nm; the modified nanoparticles have been subjected to surface lipophilic treatment;

[0019] The waste tile nanoparticles are prepared by a high-pressure homogenization method, which specifically includes the following steps: crushing and grinding the waste tiles to a particle size of 1-5 mm to obtain waste tile powder, placing the waste tile split body into a ball mill and milling at 500-600 rpm for 20-30 min to obtain a crude waste tile nanoparticle suspension, and placing the crude waste tile nanoparticles into a high-pressure homogenizer for homogenization 4-5 times to obtain; there are a large number of waste tiles in the construction industry all year round, and stacking waste tile garbage requires a lot of site costs. The high-pressure homogenization process is used to homogenize them into nanoparticles, which effectively alleviates the storage pressure of solid waste. At the same time, the waste tiles are compounded with a large amount of iron, silicon, aluminum and other elements. After being homogenized into nanoparticles, they are compounded with matrix asphalt, so that the mechanical properties of the matrix asphalt are significantly improved, and the toughness and impact resistance are significantly improved. They are arranged outside the aggregate and the bonding layer, and the bonding layer and the aggregate can be insulated to further prevent them from cracking at low temperatures;

[0020] The surface lipophilic treatment specifically comprises the following steps: 2 Nanoparticles, waste tile nanoparticles, CaCO 3 Nanoparticles, Fe 3 O 4 The nanoparticles and ethyl acetate solution are sequentially put into an ultrasonic dispersion kettle for dispersion for 10-15 minutes, and then the titanate coupling agent is added and stirred for 10-20 minutes, and then filtered and dried to obtain the obtained product; the nano-modified particles after surface lipophilic treatment have good dispersion properties with the matrix asphalt, can be evenly and densely distributed in the matrix asphalt, and significantly improve the mechanical properties of the matrix asphalt.

[0021] Preferably, the method for preparing the thermal insulation layer comprises the following steps:

[0022] S101. The base asphalt is added with a viscosity modifier and sheared at 150-160°C and 1200-1600rpm for 10-20min;

[0023] S102. Dispersant, Fe 3 O 4 Nanoparticles, CaCO 3 Nanoparticles, SiO 2The nanoparticles and waste tile nanoparticles are sequentially put into a shearing machine and sheared for 30-40 minutes at 175-185° C. and 1650-1850 rpm to obtain the nanoparticles.

[0024] Preferably, the method for preparing the bonding layer comprises the following steps:

[0025] S201. The base asphalt is put into a shearing machine and sheared at 150-160°C and 1200-1600rpm for 10-20min;

[0026] S202. The polyurethane-modified acrylic resin, the modified tert-butyl phenolic resin and the SBS modifier are sequentially put into a shearing machine and sheared at 165-170°C and 1300-1500rpm for 25-30min;

[0027] S203. Put the dispersant and the antifreeze modifier into a shearing machine in sequence, and shear for 35-40 minutes at 175-190° C. and 1600-1750 rpm.

[0028] Preferably, the aggregate is composed of the following components by weight:

[0029]

[0030]

[0031] The particle size of the granite, basalt and rhyolite is 8mm-16mm, the particle size of the waste tile particles is 2.8-5mm, and the preparation method of the aggregate comprises the following steps:

[0032] Put granite, basalt, rhyolite and waste tile particles into the mixer in turn, stir at room temperature and 80-150rpm, put glutinous rice mortar into the mixer after stirring evenly, and stir at 40-60℃ and 120-200rpm for 30-45min to obtain. There are a large number of waste tiles in the construction industry all year round, and it takes a lot of site costs to stack the waste tile garbage. The use of waste tile particles can effectively alleviate the storage pressure of solid waste. At the same time, waste tiles contain a large amount of iron, silicon, aluminum and other elements. As aggregates, they can effectively reduce the thickness of the road surface and save highway costs.

[0033] In order to achieve the second purpose, this application adopts the following technical solution:

[0034] Preferably, a construction method of a low-temperature resistant asphalt waterproof material comprises the following steps:

[0035] S301. After the aggregate is heated to 150-180°C and dried, it and the bonding layer are sequentially put into a mixer, mixed at 160-170°C and 1600-1800rpm for 10-15min, and then spread on the road surface at a spreading speed of 3-4m / min and a spreading coefficient of 1-1.1;

[0036] S302. After the pavement paved in step S301 has been cured to a certain strength, the pavement is compacted using a road roller;

[0037] S303. After the surface temperature of the road surface after rolling and compaction in step S302 drops to 65-80°C, the insulation layer is spread with an asphalt spreader at 0.5-0.8kg / m 2 Spread the material on the road surface in the appropriate amount. After curing to a certain degree, use a roller to compact the road surface until the road surface temperature reaches 40-50℃.

[0038] 1. The present application provides a low-temperature resistant asphalt waterproof material and a construction method thereof, comprising a bonding layer, an aggregate and a thermal insulation layer. The base asphalt is modified by using a viscosity modifier and an antifreeze modifier, and then used in combination with the aggregate. The bonding layer and the aggregate are laid together, and then the thermal insulation layer is laid. This not only greatly improves the bonding strength among the bonding layer, the aggregate and the thermal insulation layer, but also makes the modified polycarbonate have low-temperature resistance and anti-cracking properties after the pavement is paved, thereby extending the service life of the pavement, reducing the cost of highway maintenance, and having the advantages of obvious low-temperature anti-cracking effect and low implementation cost.

[0039] 2. The application provides a construction method for low-temperature resistant asphalt waterproofing material, which is simple and quick to operate, easy to implement and promote, has a wide range of applications, can be efficiently paved with the cooperation of corresponding highway equipment, has a short curing time, and a fast traffic speed. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with specific examples 1-3 and comparative examples 1-4:

[0041] (1) Preparation of antifreeze modifier according to the weight parts shown in Table 1:

[0042] The glass fiber modified plastic steel fiber is put into polycarbonate and stirred at 330 rpm and 45° C. for 16 minutes to obtain the obtained product. The mass ratio of the glass fiber modified plastic steel fiber to the polycarbonate is 1:3.5.

[0043] (2) Prepare the aggregate according to the weight percentage shown in Table 1:

[0044] Put granite, basalt, rhyolite and waste tile particles into a mixer in turn, stir at room temperature and 100 rpm, after stirring and mixing, put glutinous rice mortar into the mixer, and stir at 55°C and 180 rpm for 40 minutes.

[0045] Example 1: A construction method for low-temperature resistant asphalt waterproof material

[0046] (1) Prepare the thermal insulation layer according to the weight parts shown in Table 1:

[0047] S101. The base asphalt is added with a viscosity modifier and sheared at 155°C and 1500 rpm for 15 min.

[0048] S102. Dispersant, Fe 3 O 4 Nanoparticles, CaCO 3 Nanoparticles, SiO 2 The nanoparticles and waste tile nanoparticles are sequentially put into a shearing machine and sheared for 30 minutes at 180° C. and 1700 rpm to obtain the nanoparticles.

[0049] (2) Prepare the adhesive layer according to the weight percentage shown in Table 1:

[0050] S201. The base asphalt is put into a shearing machine and sheared at 155°C and 1500rpm for 20min;

[0051] S202. The polyurethane-modified acrylic resin, the modified tert-butyl phenolic resin and the SBS modifier are sequentially put into a shearing machine and sheared at 170°C and 1500rpm for 30min;

[0052] S203. Put the dispersant and the antifreeze modifier into a shearing machine in sequence, and shear for 35 minutes at 180° C. and 1630 rpm to obtain the product.

[0053] A construction method for low-temperature resistant asphalt waterproof material

[0054] S301. After the aggregate is heated to 155°C and dried according to the components shown in Table 1, it and the bonding layer are sequentially put into a mixer, mixed at 160°C and 1650rpm for 10-15min, and then spread on the road surface at a spreading speed of 3-4m / min and a spreading coefficient of 1.05;

[0055] S302. After the pavement paved in step S301 is cured to a certain strength, the pavement is compacted using a roller;

[0056] S303. After the surface temperature of the road surface after rolling and compaction in step S302 drops to 65°C, the insulation layer is spread with an asphalt spreader at 0.5 kg / m 2 The spreading amount is spread on the road surface. After curing to a certain degree, the road surface is compacted with a roller until the road surface temperature reaches 40°C. After paving, the thickness ratio of the bonding layer, aggregate and insulation layer is 6:3:2.

[0057] Embodiment 2:

[0058] (1) Prepare the thermal insulation layer according to the weight parts shown in Table 1:

[0059] S101. The base asphalt is added with a viscosity modifier and sheared at 152°C and 1470 rpm for 18 min.

[0060] S102. Dispersant, Fe 3 O 4 Nanoparticles, CaCO 3 Nanoparticles, SiO 2 The nanoparticles and waste tile nanoparticles are sequentially put into a shearing machine and sheared for 35 minutes at 178° C. and 1820 rpm to obtain the nanoparticles.

[0061] (2) Prepare the adhesive layer according to the weight percentage shown in Table 1:

[0062] S201. The base asphalt was put into a shearing machine and sheared at 158°C and 1450rpm for 20min;

[0063] S202. The polyurethane-modified acrylic resin, the modified tert-butyl phenolic resin and the SBS modifier are sequentially put into a shearing machine and sheared at 166°C and 1440rpm for 30min;

[0064] S203. Put the dispersant and the antifreeze modifier into a shearing machine in sequence, and shear for 40 minutes at 177° C. and 1640 rpm.

[0065] A construction method for low-temperature resistant asphalt waterproof material

[0066] S301. After the aggregate is heated to 165°C and dried according to the components shown in Table 1, it and the bonding layer are sequentially put into a mixer, mixed at 165°C and 1700 rpm for 15 minutes, and then spread on the road surface at a spreading speed of 3.5 m / min and a spreading coefficient of 1.05;

[0067] S302. After the pavement paved in step S301 has been cured to a certain strength, the pavement is compacted using a road roller;

[0068] S303. After the surface temperature of the road surface after rolling and compaction in step S302 drops to 70°C, the insulation layer is spread with an asphalt spreader at 0.6 kg / m 2 The spreading amount is spread on the road surface. After curing to a certain degree, the road surface is compacted with a roller until the road surface temperature reaches 40°C. After paving, the thickness ratio of the bonding layer, aggregate and insulation layer is 6:3:2.

[0069] Embodiment 3:

[0070] (1) Prepare the thermal insulation layer according to the weight parts shown in Table 1:

[0071] S101. The base asphalt is added with a viscosity modifier and sheared at 153°C and 1520 rpm for 16 min.

[0072] S102. Dispersant, Fe 3 O 4 Nanoparticles, CaCO 3 Nanoparticles, SiO 2 The nanoparticles and waste tile nanoparticles are sequentially put into a shearing machine and sheared for 38 minutes at 176° C. and 1780 rpm to obtain the nanoparticles.

[0073] (2) Prepare the adhesive layer according to the weight percentage shown in Table 1:

[0074] S201. The base asphalt was put into a shearing machine and sheared at 154°C and 1555rpm for 13min;

[0075] S202. The polyurethane-modified acrylic resin, the modified tert-butyl phenolic resin and the SBS modifier are sequentially put into a shearing machine and sheared at 168° C. and 1390 rpm for 30 min;

[0076] S203. Put the dispersant and the antifreeze modifier into a shearing machine in sequence, and shear for 36 minutes at 182° C. and 1720 rpm.

[0077] A construction method for low-temperature resistant asphalt waterproof material

[0078] S301. After the aggregate is heated to 170°C and dried according to the components shown in Table 1, it and the bonding layer are sequentially put into a mixer, mixed at 170°C and 1750rpm for 15 minutes, and then spread on the road surface at a spreading speed of 4m / min and a spreading coefficient of 1.1;

[0079] S302. After the pavement paved in step S301 has been cured to a certain strength, the pavement is compacted using a road roller;

[0080] S303. After the surface temperature of the road surface after rolling and compaction in step S302 drops to 75°C, the insulation layer is spread with an asphalt spreader at 0.7 kg / m 2 The spreading amount is spread on the road surface. After curing to a certain degree, the road surface is compacted with a roller until the road surface temperature reaches 40°C. After paving, the thickness ratio of the bonding layer, aggregate and insulation layer is 6:3:2.

[0081] Comparative Example 1: The antifreeze modifier in the adhesive layer of Example 3 was removed, and the remaining components were appropriately adjusted.

[0082] Comparative Example 2: The viscosity modifier in the bonding layer and the thermal insulation layer in Example 3 was removed, and the remaining components were appropriately adjusted.

[0083] Comparative Example 3: The nano-modified particles in the thermal insulation layer of Example 3 are removed, and the remaining components are appropriately adjusted.

[0084] Comparative Example 4: The antifreeze modifier in the bonding layer and the waste tile nanoparticles in the nano-modified particles in the thermal insulation layer in Example 3 are removed, and the remaining components are appropriately adjusted.

[0085] Table 1 Components of bonding layer, thermal insulation layer and aggregate in Examples 1-3 and Comparative Examples 1-4 by weight

[0086]

[0087] The test pieces of Examples 1-3 and Comparative Examples 1-4 were prepared according to JTG E20-2011 "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering", and the following tests were carried out: the bonding layer, aggregate and thermal insulation layer in Examples 1-3 and Comparative Examples 1-4 were spread in a wooden mold with a groove with a length of 20 cm, a width of 8 cm and a depth of 5 cm, and the test pieces were obtained after cooling and curing, wherein the weight ratio of the bonding layer to the aggregate was 1:2, the thickness of the bonding layer and the aggregate was 4 cm in total, and the thickness of the thermal insulation layer was 1 cm. The test pieces were placed in a sub-zero temperature environment for 48 hours and then placed in a 60°C drying oven for 12 hours. If obvious cracks were found, the simulated cracking temperature was recorded. The test results are as follows.

[0088] Table 2 Test results of Examples 1-3 and Comparative Examples 1-4

[0089]

[0090] It can be seen from the test data in Table 2 that Examples 1-3 can withstand a minimum temperature of -51°C in the low-temperature freeze-cracking simulation experiment, which can meet the climate environment in most areas. The antifreeze modifier in the bonding layer in Comparative Example 1 is removed. The antifreeze modifier is a polycarbonate modified by glass fiber-modified plastic steel, which has excellent tensile properties and a tensile elongation rate of up to 500%-1000% after curing. The base asphalt modified by the viscosity modifier and the antifreeze modifier, under low temperature conditions, on the one hand, the viscosity modifier improves the cohesion of the bonding layer, the bonding force between the components, and the overall toughness of the bonding layer; on the other hand, the antifreeze modifier Medium polycarbonate has high strength and elastic coefficient, high impact strength, good fatigue resistance, good dimensional stability, and small creep. After being modified by modified plastic steel, it can not only maintain its original advantages, but also further improve its weather resistance and mechanical strength. When the bonding layer is used in combination with the aggregate, under low temperature conditions, the modified plastic steel fiber provides more adhesion sites for the matrix asphalt, the shrinkage capacity of the matrix asphalt decreases, and the low-temperature anti-cracking performance is significantly improved. After removal, the elongation at break is significantly reduced, and the ability to resist the shrinkage of the bonding layer under low temperature conditions is significantly reduced. The van der Waals force between the bonding layer and the aggregate and the insulation layer is significantly reduced, and the simulated cracking temperature is significantly increased;

[0091] In Comparative Example 2, the viscosity modifier in the bonding layer and the insulation layer is removed. The viscosity modifier improves the cohesion of the bonding layer, the bonding force between the components, and the overall toughness of the bonding layer. After the removal, the mechanical properties of the test piece are significantly reduced, the porosity is significantly improved, and the stability is significantly reduced. The macroscopic performance is that the adhesion between the bonding layer and the aggregate is reduced, the curing time is prolonged, and the elongation at break is reduced, which makes it easier to crack in a low temperature environment, and the simulated cracking temperature drops linearly.

[0092] In comparative example 3, the nano-modified particles in the thermal insulation layer are removed. Waste tiles contain a large amount of iron, silicon, aluminum and other elements. After being homogenized into nano-particles and combined with other nano-particles, they are compounded with the matrix asphalt, so that the mechanical properties of the matrix asphalt are significantly improved, the toughness and impact resistance are significantly improved, the density is significantly improved, and the thermal insulation effect is obvious. It is arranged outside the aggregate and the bonding layer to insulate the bonding layer and the aggregate, and it plays a role in balancing the temperature difference between the inside and outside of the bonding layer, further preventing it from cracking at low temperature. After being removed, the thermal insulation capacity of the thermal insulation layer is significantly reduced, the temperature change rate of the bonding process is increased, the temperature difference in the freezing and cracking simulation experiment is more obvious, and the anti-freezing and cracking performance is significantly reduced;

[0093] In Comparative Example 4, the antifreeze modifier in the bonding layer and the waste tile nanoparticles in the nano-modified particles of the thermal insulation layer are removed. The experimental objectives of Comparative Examples 1 and 3 are summarized, and the influence of the waste tile particles, the main component of the modified nanoparticles, on the thermal insulation effect of the thermal insulation layer is demonstrated. After removing the two, the antifreeze ability of the bonding layer itself decreases, and the thermal insulation ability of the thermal insulation layer decreases, which increases the temperature change rate of the bonding layer, and further reduces the overall anti-freeze cracking performance of the test piece.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low temperature resistant asphalt waterproof material, It is characterized in that It is composed of a bonding layer, aggregate and a thermal insulation layer which are spread in sequence. The bonding layer is composed of the following components by weight: 40-60 parts of base asphalt Viscosity modifier 10-20 parts 8-15 parts of antifreeze modifier 3-8 parts of dispersant; The viscosity modifier is composed of the following components in parts by weight: SBS modifier 8-12 parts 3-5 parts of modified tert-butyl phenolic resin 4-6 parts of polyurethane modified acrylic resin; The antifreeze modifier is modified polycarbonate, and the modification method of the modified polycarbonate comprises the following steps: adding glass fiber modified plastic steel fiber into polycarbonate, stirring for 12-25 minutes at 200-500 rpm and 40-50° C., wherein the mass ratio of the glass fiber modified plastic steel fiber to the polycarbonate is 1:3-5; The thermal insulation layer is composed of the following components by weight: 30-55 parts of base asphalt 10-20 parts of nano-modified particles Dispersant 2-5 parts 10-20 parts of viscosity modifier; The nano-modified particles in the thermal insulation layer are composed of the following components by weight: SiO 2 1-3 parts of nanoparticles 7-10 parts of waste ceramic tile nanoparticles CaCO 3 1-3 parts of nanoparticles Fe 3 O 4 1-3 parts of nanoparticles.

2. A low temperature resistant asphalt waterproof material according to claim 1, It is characterized in that The glass fiber modified plastic-steel fiber is prepared by mixing plastic-steel fiber and glass fiber at 80-110° C. using a fiber mixing process.

3. A low temperature resistant asphalt waterproof material according to claim 2, It is characterized in that The mass ratio of the glass fiber to the plastic-steel fiber is 1:5-6, the diameter of the glass fiber is 6-13 μm, the diameter of the glass-fiber-modified plastic-steel fiber is 10-15 μm, and the aspect ratio is 3-5:

1.

4. The low-temperature resistant asphalt waterproof material according to claim 1, It is characterized in that The particle size of the waste ceramic tile nanoparticles is 120-150nm, and the SiO 2 Nanoparticles, CaCO 3 Nanoparticles and Fe 3 O 4 The particle size of the nanoparticles is 50-100 nm; the surface of the modified nanoparticles is treated with lipophilicity.

5. The low-temperature resistant asphalt waterproof material according to claim 1, It is characterized in that The preparation method of the thermal insulation layer comprises the following steps: S101. The base asphalt and the viscosity modifier are put into a shearing machine and sheared at 150-160°C and 1200-1600rpm for 10-20min; S102. Dispersant, Fe 3 O 4 Nanoparticles, CaCO 3 Nanoparticles, SiO 2 The nanoparticles and waste tile nanoparticles are sequentially put into a shearing machine and sheared for 30-40 minutes at 175-185° C. and 1650-1850 rpm to obtain the nanoparticles.

6. The low-temperature resistant asphalt waterproof material according to claim 1, It is characterized in that The method for preparing the bonding layer comprises the following steps: S201. The base asphalt is put into a shearing machine and sheared at 150-160°C and 1200-1600rpm for 10-20min; S202. The polyurethane-modified acrylic resin, the modified tert-butyl phenolic resin and the SBS modifier are put into the shearing machine at once and sheared at 165-170°C and 1300-1500rpm for 25-30min; S203. Put the dispersant and antifreeze modifier into a shearing machine at once, and shear for 35-40 minutes at 175-190° C. and 1600-1750 rpm to obtain the product.

7. The low-temperature resistant asphalt waterproof material according to claim 1, It is characterized in that The aggregate is composed of the following components by weight: 20-30 parts of granite 20-30 parts of basalt Rhyolite 5-10 parts 12-22 parts of waste tile particles 4-7 portions of glutinous rice mortar; The particle size of the granite, basalt and rhyolite is 8mm-16mm, the particle size of the waste tile particles is 2.8-5mm, and the preparation method of the aggregate comprises the following steps: Put granite, basalt, rhyolite and waste tile particles into the mixer in turn, stir at room temperature and 80-150rpm, after stirring and mixing, put glutinous rice mortar into the mixer, stir at 40-60℃ and 120-200rpm for 30-45min to obtain the product.

8. A construction method for a low-temperature resistant asphalt waterproof material according to any one of claims 1 to 7, It is characterized in that The following steps are involved: S301. After the aggregate is heated to 150-180°C and dried, it and the bonding layer are sequentially put into a mixer, mixed at 160-170°C and 1600-1800rpm for 10-15min, and then spread on the road surface at a spreading speed of 3-4m / min and a spreading coefficient of 1-1.1; S302. After the pavement paved in step S301 is cured to a certain strength, the pavement is compacted using a roller; S303. After the surface temperature of the road surface after rolling and compaction in step S302 drops to 65-80°C, the insulation layer is spread with an asphalt spreader at 0.5-0.8kg / m 2 Spread the material on the road surface in the appropriate amount. After curing to a certain degree, use a roller to compact the road surface until the road surface temperature reaches 40-50℃.

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