石油瀝青是路面鋪裝建設(shè)與養(yǎng)護(hù)不可或缺的材料，其性能直接決定了瀝青路面的工程質(zhì)量和路面的結(jié)構(gòu)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.

　　由于石油瀝青在高溫時易軟化，低溫時又易脆裂。為了提高瀝青的使用性能，通常是采用添加聚合物的辦法來進(jìn)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.

　　環(huán)氧瀝青作為一種新型高性能的復(fù)合材料，兼具環(huán)氧樹脂和瀝青兩種材料的優(yōu)點(diǎn)，是一種具有高強(qiáng)度、高粘接力、高柔韌性的新型路面防水、鋪裝的復(fù)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.

　　什么是環(huán)氧瀝青

　　What is epoxy asphalt

　　環(huán)氧瀝青既不是環(huán)氧樹脂，也不是瀝青，而是一種通過精確組分和相態(tài)設(shè)計，經(jīng)化學(xué)反應(yīng)形成的多組分互穿網(wǎng)絡(luò)三維立體結(jié)構(gòu)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.

　　由于在環(huán)氧瀝青體系的微觀結(jié)構(gòu)中，連續(xù)相為熱固性的環(huán)氧樹脂，分散相為熱塑性的基質(zhì)瀝青。

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

　　因此在熱力學(xué)上，環(huán)氧樹脂可以看作是一種熱固性材料。

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

　　這從根本上改變了普通瀝青的熱塑性，大幅提高了高溫穩(wěn)定性，同時顯著提高了材料的黏附力、拉伸強(qiáng)度、斷裂延伸率和低溫性能。   環(huán)氧瀝青的固化反應(yīng)示意圖

　　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

　　環(huán)氧瀝青物理力學(xué)性質(zhì)

　　Physical and mechanical properties of epoxy asphalt

　　01

　　01

　　環(huán)氧瀝青的雙組分混合后，隨時間推移，兩者進(jìn)行物力和化學(xué)作用，體系的黏度逐漸增大，并且溫度越高，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

　　環(huán)氧瀝青的固化是一種化學(xué)反應(yīng)，因此固化過程和溫度關(guān)系極大，在120?C時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.

　　如果溫度降低，則固化時間相應(yīng)延長。一般以120?C時4h的固化程度為標(biāo)準(zhǔn)強(qiáng)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

　　環(huán)氧瀝青固化后形成不溶不熔的熱固性材料。固化過程是不可逆的，即使溫度升得再高（例如達(dá)到300?C以上），材料仍呈固態(tài)形式，這樣就保證了環(huán)氧瀝青在高溫下仍能保持較好的力學(xué)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

　　環(huán)氧瀝青的黏結(jié)力是通過物理和化學(xué)兩個方面的作用產(chǎn)生的，而不僅僅是通常的物理黏結(jié)力，因此其黏結(jié)力很大（與鋼板的黏結(jié)力可達(dá)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

　　環(huán)氧瀝青具有特殊的分子構(gòu)造，因此即使在-10 ?C下仍能保持較好的柔韌性，斷裂延伸率達(dá)120%（SBS改性瀝青僅有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%).

　　環(huán)氧瀝青的優(yōu)勢

　　Advantages of epoxy asphalt

　　1、抗疲勞性能

　　1. Fatigue resistance performance

　　環(huán)氧瀝青出色的抗疲勞性能，即使是經(jīng)過數(shù)百萬次車輪荷載撓曲變形也不開裂，可最大限度的延長路面的壽命。

　　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

　　環(huán)氧瀝青封層含有高品質(zhì)的抗磨光骨料，能夠自始至終提供優(yōu)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.

　　環(huán)氧瀝青結(jié)合料不會像其他瀝青類材料在夏季高溫期間出現(xiàn)“冒油”現(xiàn)象。當(dāng)骨料表面接觸交通的結(jié)合料磨失后，車輪只會與骨料相接觸。

　　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、特殊的滲透密閉性能

　　3. Special permeability and sealing performance

　　環(huán)氧瀝青A、B兩組分在高溫下混合灑布后初始粘度低，具有很強(qiáng)的滲透性，可以迅速沿瀝青混凝土面層微小空隙或裂縫進(jìn)入路面內(nèi)部，在固化反應(yīng)后形成極高的結(jié)合強(qiáng)度，并且，可以修復(fù)瀝青混凝土的微缺陷，堵塞滲水，大幅度提高防水防滲效果。

　　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、優(yōu)異的抗施工損傷性能

　　4. Excellent resistance to construction damage performance

　　環(huán)氧瀝青可以充分包裹撒布碎石、填充面層層間空隙，并迅速發(fā)生化學(xué)反應(yīng)形成極高的層間結(jié)合強(qiáng)度，使路面通過環(huán)氧瀝青牢固粘結(jié)，故具有優(yōu)異的抗施工損傷性能。

　　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、超強(qiáng)的粘結(jié)性能

　　5. Super strong bonding performance

　　環(huán)氧瀝青與瀝青混凝土的粘結(jié)強(qiáng)度大大超過粘結(jié)對象本身的強(qiáng)度，拉拔強(qiáng)度和剪切強(qiáng)度都比其他常見封層材料高。

　　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.

　　環(huán)氧瀝青在橋面鋪裝上的應(yīng)用

　　Application of epoxy asphalt in bridge deck pavement

　　理論與工程實(shí)踐表明，鋼橋面鋪裝主要應(yīng)滿足以下條件：

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

　　1)鋼橋面板由于車輛荷載引起的局部變形大，相同的輪荷作用在鋼板上產(chǎn)生的撓度暈大約是作用在一般路面上的三倍。所以，橋面鋪裝必須具有足夠的變形適應(yīng)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)鋼橋面板容易受氣候影響，所以橋面鋪裝應(yīng)能夠在較大的溫度范圍內(nèi)保持性能穩(wěn)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)在車輪荷載作用下，鋼橋面鋪裝位于網(wǎng)格狀的加勁肋部位，將形成較大的彎拉應(yīng)力反復(fù)作用，容易導(dǎo)致鋪裝層的疲勞開裂，因此，橋面鋪裝結(jié)構(gòu)應(yīng)該具有良好的抗疲勞開裂性能。

　　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)鋼橋面鋪裝應(yīng)具有完善的防排水與防腐體系，以保證鋼板不被侵蝕。

　　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)具有良好的結(jié)構(gòu)層間結(jié)合，保證鋪裝與橋面板的協(xié)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，以減少行車荷載的沖擊作用。

　　6) Good flatness to reduce the impact of driving loads.環(huán)氧瀝青混合料是鋼橋面鋪裝、路面磨耗層、超重載交通道路的理想筑路材料，具有廣泛的應(yīng)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.

　　本文由 濟(jì)南瀝青料  友情奉獻(xiàn).更多有關(guān)的知識請點(diǎn)擊  http://www.legxnrr.com.cn   真誠的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識我們將會陸續(xù)向大家奉獻(xiàn).敬請期待.

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