这对于西部强紫外线辐射地区研究防止沥青路面过早老化和损害有着积极的意义。
This pa- per is of value to prevent road asphalt early aging research in the northwest intensive ultraviolet radiation region of China.
为此，采用室内人工加速试验方法，研究了石油沥青涂层的老化过程和规律。
The ageing process and regularity of the asphalt coating have been studied with indoor artificial accelerated ageing test.
同时，老化过程中，沥青针入度、软化点及延度的变化进一步证明了所得动力学模型是可靠的。
The changes of penetration, softening point and ductility of asphalt during aging proved that the kinetic model is reliable.
为了能够简捷、直观地揭示、评价再生沥青的老化性能，建立了以正戊烷沥青质为参数的老化动力学模型。
The aging kinetic models in the parameter of n-pentane asphaltene is derermined for simply discovering the anti-aging property of regenerated asphalt.
通过对SBS改性沥青、环氧沥青、FYT桥面二涂防水粘结材料三种防水粘结材料的性能研究，对比了三种防水粘结材料的剪切强度、拉拔强度和老化性能。
Through performance research of FYT, SBS modified bitumen and epoxy asphalt, shearing stress, drawing stress and aging performance of three water proofing and adhesion material have been compared.
本文以沥青为基料，采用结构改性剂，研制了具有优良热稳定性、粘着力及耐老化性能好的封口剂。
Based on asphalt, some structural modifiers were used to develop the sealing agent for the enhancement of the thermal stability, cohesion and aging resistance.
长期老化降低了橡胶粉沥青混合料的低温性能。
Long term aging lowered the low temperature performance of rubber powder asphalt mixture.
TLA对沥青的老化性能也有明显的改善作用。
Furthermore, the aging properties of asphalt were also improved by TLA.
紫外老化改变了沥青的材料性质和力学行为。
Material properties and mechanical behaviors of asphalt have been altered by ultraviolet aging.
沥青热氧老化的原因主要是饱和分和芳香分的氧化，而不是胶质和沥青质的氧化。
Not mainly the ageing of resins and asphaltenes but that of saturates and aromatics cause the ageing of asphalt.
同时以软化点为参数建立老化动力学模型来反映两种沥青的老化情况，并计算出活化能。
Based on parameter of softening point, aging kinetics model was established to show aging condition of two asphalts and to calculate activation energies.
本文主要对厂拌热再生技术进行了研究，通过对沥青老化过程和再生机理的分析，探明了沥青再生的科学途径。
This thesis mainly studies the Hot Mix (Central) Plant recycling Technology and through the analysis of asphalt aging and recycling mechanism, a scientific approach of asphalt recycling is proved up.
使用改性沥青稀浆封层是解决路面老化开裂及防滑问题的快捷、有效的方法。
To use the modified seal asphalt is an effective method to solve the problem of ageing crack and slipping preventing.
以软化点为参数建立了沥青一级老化动力学模型，为研究沥青抗老化性能提供了一种简便可行的分析方法。
The first order aging kinetic model has been put forward successfully based on softening point, which offered an available and convenient method for studying the asphalt aging behavior.
随老化时间的延长和老化温度的升高，沥青的胶体不稳定指数逐渐增加。
With the prolonging of aging time and the going up of aging temperature, the unstable index of asphalt's gel increases gradually.
通过旋转薄膜烘箱老化试验(rtfot)和荧光紫外老化试验(QUV)对阻燃sbs改性沥青的老化性能进行了试验评价。
The rolling thin film oven test (RTFOT) and fluorescence ultraviolet aging test (QUV) were adopted to evaluate aging property of flame retarded SBS modified asphalt.
与AH-90相比AH-70沥青具有较高的反应活化能，反应速度常数较小，具有较低的老化速率和较好的抗老化性能。
Paving asphalt of AH-70 has higher reaction active energy, less reaction velocity constant, lower aging velocity and better aging resistance performance than that of paving asphalt of AH-90.
再生沥青有一般道路沥青所不具备的特殊性，对再生后沥青抗老化性能的考察却并无统一认可的方法。
Regenerated asphalt has special performance compared with the general asphalt, however, there is no unitary method to investigate the anti-aging performance of regenerated asphalt.
并对沥青的老化机理进行了探讨。
配备沥青溢流管、防冒液呼吸阀、防老化顶置充氮阀、温度计、容量计和输出沥青的快速卸料阀及接耦。
It is equipped with asphalt return tube, anti-puffing pressure vent valve, anti-aging overhead nitrogen valve, thermometer, volumeter and output asphalt rapid discharge valve and coupling.
结果表明，高等级道路沥青老化属于一级动力学反应。
The result shows that the aging of high grade paving asphalt is a first order reaction.
但也存在某些不足，如改性沥青加工过程中的温度老化、贮存稳定性及在紫外线作用下降解加速材料老化等问题。
However, some drawbacks exist, such as high temperature agi ng in process of modification, low storage stability and degradation acceleration under ultraviolet.
表明高等级道路沥青老化属于一级动力学反应。
It showed that the aging of high grade road asphalt was attributed t...
试验中利用不同时照的紫外线老化，SBR改性沥青混和料与基质沥青混合料的劈裂强度变化，反映出沥青混合料随时间变化的规律。
The changes of cleavage strength of SBR modified asphalt mixture and base asphalt mixture can reflect the rule that the asphalt mixture changes with time by using ultraviolet aging at different time.
通过添加芳香组分能改善沥青四组分之间的配伍性，从而可以改善再生沥青的抗老化性能。
The results showed that the compatibility between the asphalt four components and the aging resistance could be improved.
测试结果表明，低温短期老化时沥青的质量增加，平均分子量增加。
The results indicated that the asphalt quality and its average molecular weights were increased after ageing of short duration at low temperature.
紫外线辐射是导致沥青老化的主要因素之一。
Ultraviolet radiation is one of the main factors induce asphalt binder aged in the field in-service.
结果表明：提出的两种老化动力学模型能够很好地描述两种彩色道路沥青的老化速率。
The results show that the presented dynamics models can be used to describe the aging velocity of the two kinds of colored paving asphalt perfectly.
采用沥青薄膜加热试验和紫外线老化试验，对沥青的针入度、软化点、延度和粘度等性能指标进行了试验研究。
By thin film oven test and ultraviolet photooxidation test, asphalt performance indices were studied, including penetration, softening point, ductility and viscosity.
在现行规范中只有评价沥青短期老化的指标，而在使用期间的老化却没有相应的评价方法。
In the current specifications, there are indexes used to assess asphalt aging-resistant performance in short term only and there is no corresponding method to evaluate the aging in operation period.
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