石油沥青是路面铺装建设与养护不可或缺的材料，其性能直接决定了沥青路面的工程质量和路面的结构形式。

　　Petroleum asphalt is an indispensable material for pavement construction and maintenance, and its performance directly determines the engineering quality and structural form of asphalt pavement.

　　由于石油沥青在高温时易软化，低温时又易脆裂。为了提高沥青的使用性能，通常是采用添加聚合物的办法来进行改性。

　　Due to the tendency of petroleum asphalt to soften at high temperatures and become brittle at low temperatures. In order to improve the performance of asphalt, it is usually modified by adding polymers.

　　环氧沥青作为一种新型高性能的复合材料，兼具环氧树脂和沥青两种材料的优点，是一种具有高强度、高粘接力、高柔韧性的新型路面防水、铺装的复合材料。

　　Epoxy asphalt, as a new type of high-performance composite material, combines the advantages of epoxy resin and asphalt. It is a new type of composite material for road waterproofing and paving with high strength, high adhesion, and high flexibility.

　　什么是环氧沥青

　　What is epoxy asphalt

　　环氧沥青既不是环氧树脂，也不是沥青，而是一种通过精确组分和相态设计，经化学反应形成的多组分互穿网络三维立体结构材料。

　　Epoxy asphalt is neither epoxy resin nor asphalt, but a multi-component interpenetrating network three-dimensional structural material formed through precise composition and phase design and chemical reactions.

　　由于在环氧沥青体系的微观结构中，连续相为热固性的环氧树脂，分散相为热塑性的基质沥青。

　　Due to the microstructure of the epoxy asphalt system, the continuous phase is thermosetting epoxy resin and the dispersed phase is thermoplastic matrix asphalt.

　　因此在热力学上，环氧树脂可以看作是一种热固性材料。

　　Therefore, thermodynamically, epoxy resin can be regarded as a thermosetting material.

　　这从根本上改变了普通沥青的热塑性，大幅提高了高温稳定性，同时显著提高了材料的黏附力、拉伸强度、断裂延伸率和低温性能。   环氧沥青的固化反应示意图

　　This fundamentally changes the thermoplasticity of ordinary asphalt, greatly improving high-temperature stability, while significantly enhancing the material's adhesion, tensile strength, fracture elongation, and low-temperature performance. Schematic diagram of curing reaction of epoxy asphalt

　　环氧沥青物理力学性质

　　Physical and mechanical properties of epoxy asphalt

　　01

　　01

　　环氧沥青的双组分混合后，随时间推移，两者进行物力和化学作用，体系的黏度逐渐增大，并且温度越高，黏度增加越快。

　　After the two-component mixture of epoxy asphalt, over time, the two undergo physical and chemical interactions, and the viscosity of the system gradually increases. Moreover, the higher the temperature, the faster the viscosity increase.

　　02

　　02

　　环氧沥青的固化是一种化学反应，因此固化过程和温度关系极大，在120?C时4h可以基本完成固化。

　　The curing of epoxy asphalt is a chemical reaction, so the curing process is closely related to temperature. At 120 ° C, the curing temperature is? Curing can be basically completed within 4 hours at C.

　　如果温度降低，则固化时间相应延长。一般以120?C时4h的固化程度为标准强度。

　　If the temperature decreases, the curing time will be correspondingly extended. Usually at 120? The degree of curing at 4 hours C is the standard strength.

　　03

　　03

　　环氧沥青固化后形成不溶不熔的热固性材料。固化过程是不可逆的，即使温度升得再高（例如达到300?C以上），材料仍呈固态形式，这样就保证了环氧沥青在高温下仍能保持较好的力学性能。

　　After curing, epoxy asphalt forms an insoluble and non melting thermosetting material. The curing process is irreversible, even if the temperature rises above 300 ° C, the material remains in a solid state, ensuring that epoxy asphalt can maintain good mechanical properties at high temperatures.

　　04

　　04

　　环氧沥青的黏结力是通过物理和化学两个方面的作用产生的，而不仅仅是通常的物理黏结力，因此其黏结力很大（与钢板的黏结力可达6～9MPa）。

　　The bonding strength of epoxy asphalt is generated through both physical and chemical interactions, not just the usual physical bonding strength, so its bonding strength is very high (up to 6-9MPa with steel plates).

　　05

　　05

　　环氧沥青具有特殊的分子构造，因此即使在-10 ?C下仍能保持较好的柔韧性，断裂延伸率达120%（SBS改性沥青仅有20%）。

　　Epoxy asphalt has a special molecular structure, so even at -10? It can still maintain good flexibility under C, with a fracture elongation of 120% (SBS modified asphalt only has 20%).

　　环氧沥青的优势

　　Advantages of epoxy asphalt

　　1、抗疲劳性能

　　1. Fatigue resistance performance

　　环氧沥青出色的抗疲劳性能，即使是经过数百万次车轮荷载挠曲变形也不开裂，可最大限度的延长路面的寿命。

　　Epoxy asphalt has excellent fatigue resistance, even after millions of wheel load bending deformations, it does not crack, which can maximize the service life of the road surface.

　　2、抗滑性能

　　2. Anti slip performance

　　环氧沥青封层含有高品质的抗磨光骨料，能够自始至终提供优越的抗滑性能。

　　Epoxy asphalt sealing layer contains high-quality anti polishing aggregates, which can provide superior anti slip performance from start to finish.

　　环氧沥青结合料不会像其他沥青类材料在夏季高温期间出现“冒油”现象。当骨料表面接触交通的结合料磨失后，车轮只会与骨料相接触。

　　Epoxy asphalt binder will not experience "oil leakage" during high temperatures in summer like other asphalt materials. When the surface of the aggregate comes into contact with the transportation binder and is worn away, the wheel will only come into contact with the aggregate.

　　3、特殊的渗透密闭性能

　　3. Special permeability and sealing performance

　　环氧沥青A、B两组分在高温下混合洒布后初始粘度低，具有很强的渗透性，可以迅速沿沥青混凝土面层微小空隙或裂缝进入路面内部，在固化反应后形成极高的结合强度，并且，可以修复沥青混凝土的微缺陷，堵塞渗水，大幅度提高防水防渗效果。

　　Epoxy asphalt components A and B have low initial viscosity after mixing and spraying at high temperatures, and have strong permeability. They can quickly enter the interior of the road surface through small gaps or cracks in the asphalt concrete layer, and form extremely high bonding strength after curing reaction. In addition, they can repair micro defects in asphalt concrete, block water seepage, and greatly improve waterproof and anti-seepage effects.

　　4、优异的抗施工损伤性能

　　4. Excellent resistance to construction damage performance

　　环氧沥青可以充分包裹撒布碎石、填充面层层间空隙，并迅速发生化学反应形成极高的层间结合强度，使路面通过环氧沥青牢固粘结，故具有优异的抗施工损伤性能。

　　Epoxy asphalt can fully wrap and spread crushed stones, fill the gaps between surface layers, and quickly undergo chemical reactions to form extremely high interlayer bonding strength, making the road surface firmly bonded by epoxy asphalt, thus having excellent resistance to construction damage.

　　5、超强的粘结性能

　　5. Super strong bonding performance

　　环氧沥青与沥青混凝土的粘结强度大大超过粘结对象本身的强度，拉拔强度和剪切强度都比其他常见封层材料高。

　　The bonding strength between epoxy asphalt and asphalt concrete greatly exceeds the strength of the bonding object itself, and the tensile strength and shear strength are higher than other common sealing materials.

　　环氧沥青在桥面铺装上的应用

　　Application of epoxy asphalt in bridge deck pavement

　　理论与工程实践表明，钢桥面铺装主要应满足以下条件：

　　Theory and engineering practice have shown that steel bridge deck paving should mainly meet the following conditions:

　　1)钢桥面板由于车辆荷载引起的局部变形大，相同的轮荷作用在钢板上产生的挠度晕大约是作用在一般路面上的三倍。所以，桥面铺装必须具有足够的变形适应性。

　　1) The local deformation of steel bridge deck caused by vehicle load is large, and the deflection halo generated by the same wheel load on the steel plate is about three times that on a general road surface. Therefore, bridge deck paving must have sufficient deformation adaptability.

　　2)钢桥面板容易受气候影响，所以桥面铺装应能够在较大的温度范围内保持性能稳定。

　　2) Steel bridge decks are easily affected by climate, so bridge deck paving should be able to maintain stable performance over a wide temperature range.

　　3)在车轮荷载作用下，钢桥面铺装位于网格状的加劲肋部位，将形成较大的弯拉应力反复作用，容易导致铺装层的疲劳开裂，因此，桥面铺装结构应该具有良好的抗疲劳开裂性能。

　　3) Under the action of wheel load, the steel bridge deck pavement is located at the grid shaped stiffeners, which will generate significant bending and tensile stresses repeatedly, which can easily lead to fatigue cracking of the pavement layer. Therefore, the bridge deck pavement structure should have good anti fatigue cracking performance.

　　4)钢桥面铺装应具有完善的防排水与防腐体系，以保证钢板不被侵蚀。

　　4) The steel bridge deck pavement should have a complete waterproof, drainage and anti-corrosion system to ensure that the steel plates are not corroded.

　　5)具有良好的结构层间结合，保证铺装与桥面板的协同作用。

　　5) Having good interlayer bonding to ensure the synergistic effect between pavement and bridge deck.

　　6) 良好的平整度，以减少行车荷载的冲击作用。

　　6) Good flatness to reduce the impact of driving loads.环氧沥青混合料是钢桥面铺装、路面磨耗层、超重载交通道路的理想筑路材料，具有广泛的应用前景。

　　Epoxy asphalt mixture is an ideal road construction material for steel bridge deck pavement, pavement wear layer, and overloaded traffic roads, with a wide range of application prospects.

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