Material properties and mechanical behaviors of asphalt have been altered by ultraviolet aging.
紫外老化改变了沥青的材料性质和力学行为。
In this paper, indoor accelerated simulation of outdoor ultraviolet aging of asphalt is carried out by improving original aging equipment;
本文通过改进的老化设备实现了沥青野外紫外老化的室内加速模拟试验;
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.
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。
Through road performance comparison and verification of various schemes, it is found that modified asphalt behaves a stronger anti-ultraviolet aging ability than base asphalt;
通过不同方案的路用性能比较和验证,发现基质沥青添加改性剂比单独使用基质沥青具有更强的抗紫外老化能力;
This paper investigates physical and rheological properties before and after ultraviolet aging, compared the influence for asphalt performance of ultraviolet radiation aging with thermal aging.
本文研究了沥青紫外老化前后的物理性能与流变性能,并与热老化前后的物理性能与流变性能进行了对比。
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.
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。
Photoaging refers to cutaneous damage caused by light, especially ultraviolet radiation exposure, in the process of skin aging.
光老化是指皮肤衰老过程中由光线特别是紫外线辐射所造成的损伤。
Affected by temperature, ultraviolet light, minerals in meat, aging of meat.
受温度、紫外线光、肉中的矿物质、肉的时间影响。
In addition, the abomination agent can permeate a wall inside certain depth, thus subject to ultraviolet irradiation and atmospheric aging less influence and long service life.
此外,该憎水剂能渗透到墙内一定深度,因而受紫外线照射及大气老化影响较小,使用寿命长。
It has wonderful synergistic effect when blended with sulfide or phosphate antioxidants, and the weather aging resistance can be improved further when blended with ultraviolet absorbent.
与硫醚类、亚磷酸酯类等抗氧剂并用有显著协同效应,与紫外线吸收剂并用可进一步提高操作制品的耐侯性。
This product has a good resistance of ozone aging, ultraviolet radiation and atmosphere aging.
产品具有良好的耐臭氧老化、耐紫外线和大气老化性能。
This pa- per is of value to prevent road asphalt early aging research in the northwest intensive ultraviolet radiation region of China.
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。
It carried out the ultraviolet accelerated aging test on the polypropylene woven sack produced and used in Northwest of China, and analyzed and studied the results.
对西北地区生产使用的聚丙烯塑编袋进行了紫外线加速老化试验,并对结果进行了分析研究。
Adopts unique SPF25 sunblock formula, can effectively isolate UVA and UVB ultraviolet harm to the skin, resist free radical, prevent skin aging and tan.
独特的SPF25防晒配方,能有效隔离uva和UVB紫外线的伤害,抵抗自由基对皮肤的侵害,防止肌肤老化和晒黑。
So it fits to be used in south and altiplano with high intensity of ultraviolet radiation, especially for open-graded pavement with high request of anti-aging.
适合于南方和高原紫外线强烈地区使用,尤其适用于对老化性能要求较高的开级配道路。
Seborrheic keratosis, basal cell carcinoma and squamous cell carcinoma are clinically common epidermal tumors associated with skin aging and ultraviolet radiation.
脂溢性角化病、基底细胞癌和鳞状细胞癌是皮肤科临床上常见的三种与皮肤老化和紫外线辐射相关的表皮肿瘤。
The results showed for ultraviolet ray protection daiflon coating was the best, anti - aging film was better and the resin rich protective coating was the worst.
结果表明,聚三氟乙烯涂层对紫外线的防护效果最好,防老化薄膜次之,富树脂保护层最差。
At the same time should avoid sun long time direct floor, lest the film by ultraviolet light irradiation after long-term strong, premature cracking and aging.
同时应尽量避免太阳长时间直射地板,以免漆膜被紫外线长期强烈照射后,过早干裂和老化。
The paint membrane has the best mirror effect, and can effectively resist radiation of ultraviolet, then enhance aging-resist of decorated objects.
漆膜具有最佳镜面效果,能有效抵抗紫外线辐射,增强被装饰物抗老化性。
The paint membrane has the best mirror effect, and can effectively resist radiation of ultraviolet, then enhance aging-resist of decorated objects.
漆膜具有最佳镜面效果,能有效抵抗紫外线辐射,增强被装饰物抗老化性。
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