阅读说明：本技术 一种屋面修缮用改性沥青防水卷材及其制备方法 (Modified asphalt waterproof coiled material for roof repairing and preparation method thereof ) 是由 张广彬 孙艳芳 任军辉 于 2019-12-04 设计创作，主要内容包括：本发明涉及一种屋面修缮用改性沥青防水卷材及其制备方法。其技术方案是：胎基增强层上下表面分别设置环保型改性沥青层和高耐热型非固化橡胶沥青层,厚度渐变区分别设置在环保型改性沥青层的左右两侧,上隔离防护层、施工搭接警示线及隔离边膜设置在环保型改性沥青层的上表面,下隔离防护层设置在高耐热型非固化橡胶沥青层的下表面。有益效果是：产品兼具改性沥青防水卷材和非固化橡胶沥青防水涂料的双重功能；生产过程中的一氧化碳、二氧化硫及硫化氢等大气污染物排放量减少50%以上。同时还有效降低了改性沥青的体系粘度及提高了卷材高温环境下的抗“倒伏”能力；使热熔施工满粘效果达到100%,实现防水和密封双重功能。(The invention relates to a modified asphalt waterproof coiled material for roof repair and a preparation method thereof. The technical scheme is as follows: the upper and lower surfaces of the tyre base reinforcing layer are respectively provided with an environment-friendly modified asphalt layer and a high heat-resistant non-cured rubber asphalt layer, the thickness gradient areas are respectively arranged at the left and right sides of the environment-friendly modified asphalt layer, the upper isolation protective layer, the construction lap joint warning line and the isolation side film are arranged on the upper surface of the environment-friendly modified asphalt layer, and the lower isolation protective layer is arranged on the lower surface of the high heat-resistant non-cured rubber asphalt layer. The beneficial effects are that: the product has the double functions of the modified asphalt waterproof coiled material and the non-cured rubber asphalt waterproof coating; the emission of carbon monoxide, sulfur dioxide, hydrogen sulfide and other atmospheric pollutants in the production process is reduced by more than 50 percent. Meanwhile, the system viscosity of the modified asphalt is effectively reduced, and the lodging resistance of the coiled material in a high-temperature environment is improved; the full-adhesion effect of hot melting construction reaches 100%, and the dual functions of water resistance and sealing are realized.)

1. A modified asphalt waterproof coiled material for roof repairing is characterized in that: including child base enhancement layer (1), environment-friendly modified asphalt layer (2), high heat-resistant type non-cured rubber asphalt layer (3), thickness gradual change district (4), go up keep apart inoxidizing coating (5), construction overlap joint warning line (6), isolation boundary film (7), keep apart inoxidizing coating (8) down, child base enhancement layer (1) upper and lower surface sets up environment-friendly modified asphalt layer (2) and high heat-resistant type non-cured rubber asphalt layer (3) respectively, and thickness gradual change district (4) set up respectively in the left and right sides of environment-friendly modified asphalt layer (2), go up keep apart inoxidizing coating (5), the construction overlap joint warning line (6) that set up as required and isolation boundary film (7) that set up as required set up the upper surface at environment-friendly modified asphalt layer (2), keep apart inoxidizing coating (8) down and set up the lower surface at high heat-resistant type non-cured rubber asphalt layer (3).

2. The modified asphalt waterproofing membrane for roof repair according to claim 1, wherein: the lower isolation protective layer (8) is a multilayer co-extrusion two-way stretching heat-sealing film.

3. The modified asphalt waterproofing membrane for roof repair according to claim 1, wherein: the upper isolation protective layer (5) is selected from any one of weather-resistant mineral particles, an exposed heat insulation film and a polyethylene film, wherein the exposed heat insulation film is formed by compounding a weather-resistant coating, an aluminum foil, a bonding layer and a reinforced base material.

4. The modified asphalt waterproofing membrane for roof repair according to claim 1, wherein: the upper isolation protective layer (5) is provided with a construction lap warning line (6) when a polyethylene film is selected, and the upper isolation protective layer (5) is provided with an isolation side film (7) when weather-proof mineral particles or an exposed heat insulation film is filled.

5. The modified asphalt waterproofing membrane for roof repair according to claim 1, wherein: the environment-friendly modified asphalt layer (2) comprises the following components in parts by mass: 90-115 parts of heavy traffic asphalt; 5-15 parts of SBS thermoplastic rubber; 20-35 parts of rubber powder; 5-15 parts of base oil; 2-5 parts of a dissolution promotion smell cleaning agent; 0.5-3 parts of a functional auxiliary agent; 40-70 parts of fly ash;

the manufacturing method comprises the following steps:

a) adding the heavy traffic asphalt and the base oil into a vertical batching tank, stirring, mixing and heating to 150-160 ℃;

b) then slowly adding a dissolution promotion smell cleaning agent, rubber powder and SBS thermoplastic rubber in sequence, continuously heating to 165-175 ℃, and circularly grinding for 2-3 times by using a colloid mill until the materials are melted and uniformly mixed;

c) adding the functional auxiliary agent, stirring, melting and mixing uniformly;

d) pumping the modified asphalt into a horizontal filling stirring tank, adding the fly ash, preserving heat and stirring uniformly.

6. The modified asphalt waterproofing membrane for roof repair according to claim 1, wherein: the high heat-resistant non-cured rubber asphalt layer (3) comprises the following components in parts by mass: 90-110 parts of heavy traffic asphalt; 5-10 parts of an asphalt component regulator; 5-10 parts of SBS thermoplastic rubber; 15-25 parts of rubber operating oil; 25-35 parts of base oil; 2-5 parts of a dissolution promotion smell cleaning agent; 3-8 parts of a solid tackifier; 5-10 parts of a liquid tackifier; 5-10 parts of petroleum resin; 3-10 parts of a functional auxiliary agent; 60-80 parts of fly ash;

the high heat-resistant non-cured rubber asphalt layer (3) is prepared by the following method:

a) adding heavy traffic asphalt, an asphalt component regulator, rubber operating oil and base oil into a vertical batching tank, stirring, mixing and heating to 150-160 ℃;

b) then slowly adding a dissolution promotion smell cleaning agent, SBS thermoplastic rubber and a solid tackifier in sequence, continuously heating to 165-175 ℃, and circularly grinding for 2-3 times by using a colloid mill until the materials are melted and uniformly mixed;

c) adding petroleum resin, a functional additive and a liquid tackifier, stirring, melting and mixing uniformly;

d) pumping the modified asphalt into a horizontal filling stirring tank, adding the fly ash, cooling and stirring to 120-130 ℃.

7. The modified asphalt waterproofing membrane for roof renovation according to claim 5 or 6, wherein:

the solubilizing smell-cleaning agent adopts bio-oil esterified substance modified vegetable oil, and the main technical parameters comprise: kinematic viscosity at 25 ℃ of 80-120 mm²The volatile matter of the volatile oil is less than or equal to 2.0 percent at the temperature of per second, the open flash point is more than or equal to 220 ℃, the condensation point is between minus 10 and minus 20 ℃, and the temperature of 180 ℃/2h,The content of eighteen polycyclic aromatic hydrocarbons PAHS is less than or equal to 2mg/kg, and the ash content at 800 ℃/2h is less than or equal to 0.2 percent;

the asphalt component regulator is a crude oil processing by-product, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the mass percentage content of the asphaltene is more than or equal to 45%.

8. The modified asphalt waterproofing membrane for roof renovation according to claim 5 or 6, wherein: the functional auxiliary agent is polyolefin with a straight-chain saturated structure.

9. The modified asphalt waterproofing membrane for roof repair according to claim 6, wherein: the solid tackifier is linear random rubber, and the main technical parameters are as follows according to parts by mass: the combined styrene content is 24-26%, the polystyrene content is 17-18%, and the melt mass flow rate at 230 ℃/10kg is 0.1-0.5 g/10 min.

10. The modified asphalt waterproofing membrane for roof repair according to claim 6, wherein: the liquid tackifier is a low molecular weight liquid rubber.

Technical Field

The invention relates to a modified asphalt waterproof coiled material, in particular to a modified asphalt waterproof coiled material for roof repair and a preparation method thereof.

Background

The traditional modified asphalt waterproof coiled material is developed in China for more than twenty years, and due to the excellent high-low temperature resistance and other performances, the traditional modified asphalt waterproof coiled material is constructed by a hot melting method, the method is simple and reliable, the traditional modified asphalt waterproof coiled material can be constructed all the year round, and the influence of construction areas and environmental temperature is small. Therefore, the waterproof material is actively popularized and applied in China, and currently accounts for over 70 percent of the national waterproof roll market and over 50 percent of the national waterproof material market. However, at present, many domestic production enterprises of the products are small in scale, management and technical levels are behind, the product quality is uneven, and the service life of the product exposed on the roof is low due to serious defects of a roof maintenance system and management, so that the service life of the product exposed on the roof is more than 10 years from the current roof renovation market. With the rapid development of the domestic construction market in nearly twenty years, the waterproof of the existing building roof with at least 20 hundred million square meters per year enters the renovation or renovation period, if the renovation or renovation is not carried out in time, the functions of the building such as waterproof, heat preservation, heat insulation and the like are influenced, and the living quality of residents is also influenced. However, the current situation of roof renovation is difficult to satisfy by the existing waterproof products due to the particularity of roof renovation, and the main problems are that the waterproof layer of the roof to be renovated is not as clean and tidy as a newly-built roof, but is often damaged and seriously stained, if the waterproof layer is completely dismantled and renovated, a large amount of waste coiled materials are recycled, and the renovation or renovation cost is greatly increased, so that the most economical method is to dismantle only the seriously damaged part, then repair the dismantled part by using materials such as self-leveling mortar, and then fully melt and adhere a layer of the waterproof coiled material special for roof renovation. Roof renovation is an emerging field for the waterproofing industry. In spite of the remarkable market demand, the development and production of the waterproofing membrane products for roof renovation are seriously delayed due to the advance convergence, and thus the work of developing the waterproofing membrane products for roof renovation which is urgently needed in the market is promoted. The using environment of the waterproof coiled material determines that the waterproof coiled material special for roof repair needs to have excellent aging resistance and wide adaptability of a base layer. Therefore, the development of a special waterproof coiled material product for repairing a high-cost-performance roof urgently needed by the market has important economic and practical significance.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a modified asphalt waterproof coiled material for roof repair and a preparation method thereof, which have excellent exposed use performance and wide base layer adaptability (for asphalt-based broken and stained waterproof base layers), can ensure that the full-adhesion effect of hot-melt construction reaches 100% (the conventional asphalt coiled material can only reach about 75%), and realizes the dual functions of water resistance and sealing.

The invention provides a modified asphalt waterproof coiled material for roof repair, which has the technical scheme that: including child base enhancement layer (1), environment-friendly modified asphalt layer (2), high heat-resistant type non-cured rubber asphalt layer (3), thickness gradual change district (4), go up keep apart inoxidizing coating (5), construction overlap joint warning line (6), isolation boundary film (7), keep apart inoxidizing coating (8) down, child base enhancement layer (1) upper and lower surface sets up environment-friendly modified asphalt layer (2) and high heat-resistant type non-cured rubber asphalt layer (3) respectively, and thickness gradual change district (4) set up respectively in the left and right sides of environment-friendly modified asphalt layer (2), go up keep apart inoxidizing coating (5), the construction overlap joint warning line (6) that set up as required and isolation boundary film (7) that set up as required set up the upper surface at environment-friendly modified asphalt layer (2), keep apart inoxidizing coating (8) down and set up the lower surface at high heat-resistant type non-cured rubber asphalt layer (3).

Preferably, the lower isolation and protection layer (8) is a multi-layer co-extrusion two-way stretching heat-sealing film.

Preferably, the upper insulating and protecting layer (5) is one selected from the group consisting of weather-resistant mineral particles, an exposed heat-insulating film and a polyethylene film.

Preferably, when the upper isolation protection layer (5) is made of a polyethylene film, a construction lap warning line (6) is arranged, and when the upper isolation protection layer (5) is filled with weather-resistant mineral particles or an exposed heat insulation film, an isolation side film (7) is arranged.

Preferably, the environment-friendly modified asphalt layer (2) comprises the following components in parts by mass: 90-115 parts of heavy traffic asphalt; 5-15 parts of SBS thermoplastic rubber; 20-35 parts of rubber powder; 5-15 parts of base oil; 2-5 parts of a dissolution promotion smell cleaning agent; 0.5-3 parts of a functional auxiliary agent; 40-70 parts of fly ash;

the manufacturing method comprises the following steps:

a) adding the heavy traffic asphalt and the base oil into a vertical batching tank, stirring, mixing and heating to 150-160 ℃;

b) then slowly adding a dissolution promotion smell cleaning agent, rubber powder and SBS thermoplastic rubber in sequence, continuously heating to 165-175 ℃, and circularly grinding for 2-3 times by using a colloid mill until the materials are melted and uniformly mixed;

c) adding the functional auxiliary agent, stirring, melting and mixing uniformly;

d) pumping the modified asphalt into a horizontal filling stirring tank, adding the fly ash, preserving heat and stirring uniformly.

Preferably, the high heat-resistant non-cured rubber asphalt layer (3) comprises the following components in parts by mass: 90-110 parts of heavy traffic asphalt; 5-10 parts of an asphalt component regulator; 5-10 parts of SBS thermoplastic rubber; 15-25 parts of rubber operating oil; 25-35 parts of base oil; 2-5 parts of a dissolution promotion smell cleaning agent; 3-8 parts of a solid tackifier; 5-10 parts of a liquid tackifier; 5-10 parts of petroleum resin; 3-10 parts of a functional auxiliary agent; 60-80 parts of fly ash.

The high heat-resistant non-cured rubber asphalt layer (3) is prepared by the following method:

a) adding heavy traffic asphalt, an asphalt component regulator, rubber operating oil and base oil into a vertical batching tank, stirring, mixing and heating to 150-160 ℃;

b) then slowly adding a dissolution promotion smell cleaning agent, SBS thermoplastic rubber and a solid tackifier in sequence, continuously heating to 165-175 ℃, and circularly grinding for 2-3 times by using a colloid mill until the materials are melted and uniformly mixed;

c) adding petroleum resin, a functional additive and a liquid tackifier, stirring, melting and mixing uniformly;

d) pumping the modified asphalt into a horizontal filling stirring tank, adding the fly ash, cooling and stirring to 120-130 ℃.

The heavy cross-linked asphalt is naphthenic base low-smoke asphalt produced by an atmospheric and vacuum distillation process, the softening point of the heavy cross-linked asphalt is above 45 ℃, the needle penetration is about 70dmm, the time delay at 15 ℃ is more than 1500mm, and the smoke volatilization (180 ℃/2 h) is less than or equal to 0.5 percent (mass percentage).

The asphalt component regulator is a crude oil processing byproduct, and the main technical parameters of the asphalt component regulator comprise: the softening point is more than or equal to 115 ℃, and the asphaltene content is more than or equal to 45 percent (mass percentage).

The SBS thermoplastic rubber is formed by mixing SBS thermoplastic rubber with a linear molecular structure and a star-shaped molecular structure, the block ratio (S/B) is 30/70-40/60, and the melt mass flow rate is 0.1-0.6 g/10min (230 ℃/10 kg).

The rubber powder is 60-80 mesh truck tire rubber powder.

The base oil is paraffin base oil, and the main technical parameters comprise: kinematic viscosity (40 ℃) is more than or equal to 35mm²The open flash point is more than or equal to 210 ℃, the condensation point is less than or equal to minus 15 ℃, the volatile matter (180 ℃/2 h) is less than or equal to 2.5 percent (mass percentage), and the aniline point is more than or equal to 100 ℃.

The rubber processing oil isThe environment-friendly rubber operating oil comprises the following main technical parameters: kinematic viscosity (25 ℃) is less than or equal to 1500mm²The concentration of the Polycyclic Aromatic Hydrocarbon (PAHS) is less than or equal to 10 mg/kg, and the aniline point is 65-95 ℃.

The solubilizing smell-cleaning agent adopts bio-oil esterified substance modified vegetable oil, such as palm oil esterified substance modified corn oil, and the main technical parameters comprise: kinematic viscosity (25 ℃) of 80-120 mm²The flash point of the opening is more than or equal to 220 ℃, the condensation point is-10 to-20 ℃, the volatile matter (180 ℃/2 h) is less than or equal to 2.0 percent, the content of eighteen Polycyclic Aromatic Hydrocarbons (PAHS) is less than or equal to 2mg/kg, and the ash content (800 ℃/2 h) is less than or equal to 0.2 percent; the asphalt component regulator is a crude oil processing by-product, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the mass percentage content of the asphaltene is more than or equal to 45%.

The swelling speed of modifiers such as tire rubber powder and the like in the asphalt can be accelerated by adding the dissolution promotion smell cleaning agent, the rubber swelling time is shortened, the production efficiency of the modified asphalt is improved, and the energy consumption is reduced. Meanwhile, the discharge amount of atmospheric pollutants such as carbon monoxide, sulfur dioxide, hydrogen sulfide and the like in the production process can be reduced through the effects of chemical decomposition, reaction absorption and the like of the dissolution promoting odor purifying agent, the pungent smell in the production process of the modified asphalt coiled material is greatly reduced, and the production amount and treatment difficulty of production waste gas and waste water are also obviously reduced.

The solid tackifier is linear random rubber, and the main technical parameters are as follows: the combined styrene content (mass fraction) is 24-26%, the polystyrene content (mass fraction) is 17-18%, and the melt mass flow rate is 0.1-0.5 g/10min (230 ℃/10 kg).

The liquid tackifier is low molecular weight liquid rubber, and the preferable technical parameters are that the open flash point is more than or equal to 220 ℃, the pour point is less than or equal to 5 ℃, the average molecular weight (Mn) is 1000-1500, and the kinematic viscosity (100 ℃) is 300-1000 mm²/s。

The petroleum resin is selected from one or two of C5 petroleum resin, C9 petroleum resin or C5/C9 copolymerized petroleum resin, and the softening point is preferably 100-110 ℃.

The fly ash is a byproduct of a thermal power plant, and the 180-mesh passing rate is more than 100% (mass percentage).

The functional auxiliary agent is polyolefin with a straight-chain saturated structure and is formed by compounding a heat-resistant functional auxiliary agent and a viscosity reduction functional auxiliary agent in any ratio, wherein the main technical parameters of the heat-resistant functional auxiliary agent comprise: the softening point is not less than 130 ℃, and the rotational viscosity (150 ℃) is 4500-5000 mPa.s. The main technical parameters of the viscosity reduction functional auxiliary agent comprise: the softening point is about 115 ℃, and the rotational viscosity (130 ℃) is less than or equal to 2.5 mPa.s.

The functional auxiliary agent has the following technical characteristics: has proper relative molecular weight or narrow molecular weight distribution range, and has good compatibility with both the matrix asphalt and the modifier; the modified asphalt has higher softening point or crystallinity, can greatly improve the softening point and the heat resistance of the modified asphalt, and does not obviously influence the low-temperature performance of the modified asphalt; the molecular weight distribution range is narrow, the molecular structure is a straight chain structure, the branched chains are relatively few, a molecular chain is provided with a certain amount of functional groups such as carbonyl, hydroxyl and the like, the filler has remarkable wetting, penetrating and dispersing capabilities on filling powder and the like, and the affinity among the modifier, asphalt and fillers can be improved. The modified asphalt can permeate into macromolecular chains such as a modifier, asphalt colloid and the like, reduce intermolecular interaction, play a role in lubrication, and be dissolved in asphalt when the temperature is higher than the softening point of the asphalt to improve the rheological property of the asphalt, namely, the high-temperature viscosity of the modified asphalt is obviously reduced; the molecular structure has high saturation, and has the characteristics of strong oxidation resistance, good weather resistance and the like.

The base reinforcing layer (2) adopts a long-fiber polyester base, and the preferable technical parameters are as follows: the weight per square meter is 200-250 g/square meter, the maximum tensile force is 550-850N/50 mm, the elongation at maximum tensile force (extensometer method) is 30-45%, and the right-angle tear strength is more than or equal to 250N.

The high heat-resistant non-cured rubber asphalt layer (3) not only has viscoelastic paste performance and self-healing performance, but also has the characteristics that ⑴ effectively solves the contradiction between heat resistance and a non-cured state, the heat resistance of the non-cured rubber asphalt is improved to more than 90 ℃ from 65 ℃ on the premise of keeping a viscous paste, ⑵ effectively solves the contradiction between heat resistance and viscosity, the viscosity is reduced to less than 1500mPa & s (130 ℃) on the premise of greatly improving the heat resistance, the adaptability of coating or spraying at a lower temperature (130-140 ℃), ⑶ overcomes the contradiction between the composite slippage and extensibility of a coiled material, the composite slippage of the coiled material is obviously improved on the premise of keeping the higher extensibility, the difficult problem of composite construction of a vertical surface part and the coiled material is effectively solved, the reliability of composite construction is improved, ⑷ effectively balances the harmony between the bonding performance, stress relaxation, the viscosity keeping and the peeling strength of the coiled material, and the basal plane maintaining the adhesive strength and the peeling strength greatly on the premise of ensuring cohesive failure, and small stress relaxation.

The upper isolation protective layer (5) is any one of weather-resistant mineral particles, an exposed heat insulation film and a polyethylene film.

The preferred technical parameters of the weather-resistant mineral particles are: the fineness is 12-40 meshes, the water content is less than or equal to 0.3 percent, and the ash content is less than or equal to 0.5 percent; the exposed heat insulation film is formed by compounding a weather-resistant coating, an aluminum foil, a bonding layer, a reinforced base material and the like, and the optimal technical parameters are as follows: the maximum tension is more than or equal to 150N/50mm, the elongation rate (extensometer method) at the maximum tension is more than or equal to 50%, the size change rate (90 ℃/24 h) is less than or equal to 1%, the solar emissivity is more than or equal to 80%, and the solar emissivity is less than 20%.

The lower isolation protective layer (8) is a multilayer co-extrusion two-way stretching heat-sealing film, and the preferable technical parameters are as follows: the number of composite layers is more than or equal to 2, the gram weight is less than or equal to 10 g/square meter, the thickness is 10-12 um, the maximum tensile force is more than or equal to 50N/50mm, and the elongation at maximum tensile force (extensometer method) is more than or equal to 40%.

Compared with the prior art, the invention has the following beneficial effects:

the product has double functions of the modified asphalt waterproof coiled material and the non-cured rubber asphalt waterproof coating through effective combination of a multilayer composite structure of the product and functional design of a structural layer. The technical obstacle that the thickness of the non-cured rubber asphalt waterproof coating is difficult to control by field hot melting molding is overcome by factory prefabrication molding of the non-cured rubber asphalt waterproof coating, and the adaptability of the base layer of the product, particularly the adaptability of the asphalt base to damage and stain the waterproof base layer, is improved by utilizing the performances of the permanent viscoelastic paste body, the self-healing property and the like of the non-cured rubber asphalt waterproof coating;

and secondly, by applying the dissolution promotion smell purifying agent, the swelling time of the modifier can be shortened by more than 30min, the production efficiency of the modified asphalt is improved by more than 20%, and the energy consumption is reduced by more than 10%. The discharge amount of atmospheric pollutants such as carbon monoxide, sulfur dioxide, hydrogen sulfide and the like in the production process is reduced by more than 50 percent through the actions of chemical decomposition, reaction absorption and the like of the dissolution promoting odor purifying agent, the pungent odor in the production process of the modified asphalt coiled material is greatly reduced, and the production amount and treatment difficulty of production waste gas and waste water are also obviously reduced. The method has important practical significance for improving the air quality and reducing the PM2.5 concentration in the air;

and thirdly, through the application of the functional auxiliary agent, the system viscosity of the modified asphalt is effectively reduced, and the smoothness of the surface of the coiled material are improved. The production efficiency is improved by more than 20 percent, and the production cost is obviously reduced. The lodging resistance of the coiled material in a high-temperature environment is effectively improved;

and fourthly, through the application of the multilayer co-extrusion biaxial stretching heat-sealing film, the technical obstacle that the high heat-resistant non-cured rubber asphalt layer has strong deformation capacity and is difficult to shape is overcome, the high heat-resistant non-cured rubber asphalt coating is in full contact with the base layer through the rapid shrinkage of the heat-sealing film during hot melting construction, and then the full-adhesion effect of the hot melting construction reaches 100% (the conventional asphalt coiled material can only reach about 75%), and the dual functions of water resistance and sealing are realized.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another embodiment of the present invention.

In the figure: the building block comprises a tire base reinforcing layer 1, an environment-friendly modified asphalt layer 2, a high heat-resistant non-cured rubber asphalt layer 3, a thickness gradient area 4, an upper isolation protective layer 5, a construction lap warning line 6, an isolation side film 7 and a lower isolation protective layer 8.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.