Analysis on Property Changes of Neat and Modified Asphalt under Ultraviolet Aging

Ultraviolet (UV) aging degrades the life span of asphalt pavement, nanomaterials used as modifiers exhibit good shielding function on UV light, but generally degrade the low-temperature property of asphalt, a compound modification was found to be a solution. In this study, nano-SiO2 and rubber powder were blended together with base asphalt to prepare compound modified asphalt. Compound modified asphalt with different blending dosages were subjected to UV light via a self-made UV aging simulation chamber. Basic performance tests and rheological tests were conducted including the UV aging influence. An optimum compound ratio was finally recommended based on the goal to remove the adverse effect of nano-SiO2 on the thermal cracking. Results show that the anti-UV aging property of asphalt is improved obviously due to the blocking function of nano-SiO2 and carbon black in rubber powder, and the enhancing effect of nano-SiO2 is found to be the most significant.

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Study on the Influence of Asphalt Performance for Ultraviolet Aging

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1065-1069.798 ◽

2014 ◽

Vol 1065-1069 ◽

pp. 798-801

Author(s):

Song Ye ◽

Mi Rui Ge ◽

Bin Guo

Keyword(s):

Ultraviolet Light ◽

Modified Asphalt ◽

Asphalt Performance ◽

Ultraviolet Aging

In order to study the influence of ultraviolet aging on the performance of different asphalt, we select two kinds of matrix asphalts of the same symbol and two kinds of modified asphalts of the same brand which are used widely in our country. After ultraviolet aging in different time, we use the samples to do the experiments of three indicators and DSR. The results show that the data of the modified asphalts after ultraviolet aging is more stable. Under the irradiation of ultraviolet light,the performance of modified asphalt is more stable.

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Experimental Investigation on Fatigue Property of Asphalt Concrete Modified by Diatomite-Glass Fibers

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.236-237.38 ◽

2012 ◽

Vol 236-237 ◽

pp. 38-42 ◽

Cited By ~ 1

Author(s):

Yong Chun Cheng ◽

Hui Li Ma ◽

Qing Lin Guo ◽

Chun Xu ◽

Peng Zhang

Keyword(s):

Experimental Investigation ◽

Glass Fiber ◽

Asphalt Concrete ◽

Glass Fibers ◽

Fatigue Property ◽

Fatigue Properties ◽

Pavement Materials ◽

Modified Asphalt ◽

Durability Design ◽

Property Changes

Diatomite and glass fiber are used for modifying asphalt concrete in this paper. Besides, wet and dry processes are adopted to achieve the composite modified asphalt concrete. Meanwhile, experimental investigation has been done on its fatigue properties and dynamic mechanical property, it indicates that diatomite-glass fiber modified asphalt concrete has a better capacity to resist fatigue damage. Compared with matrix asphalt concrete, the modified asphalt concrete has higher fatigue life. Thus, its mechanical parameter of fatigue property changes obviously so as to provide a reference basis for the durability design of pavement materials.

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Research on the influence of ultraviolet aging on the interfacial cracking characteristics of warm mix crumb rubber modified asphalt mortar

Construction and Building Materials ◽

10.1016/j.conbuildmat.2021.122556 ◽

2021 ◽

Vol 281 ◽

pp. 122556

Author(s):

Lan Wang ◽

Shichao Cui ◽

Lei Feng

Keyword(s):

Crumb Rubber ◽

Modified Asphalt ◽

Cracking Characteristics ◽

Asphalt Mortar ◽

Ultraviolet Aging

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Preparation of TiO2/PS-rGO incorporated SBS modified asphalt with enhanced resistance against ultraviolet aging

Construction and Building Materials ◽

10.1016/j.conbuildmat.2020.121461 ◽

2021 ◽

Vol 276 ◽

pp. 121461

Author(s):

Jing Yang ◽

Yaseen Muhammad ◽

Caili Yang ◽

Yu Liu ◽

Zhibin Su ◽

...

Keyword(s):

Modified Asphalt ◽

Enhanced Resistance ◽

Sbs Modified Asphalt ◽

Ultraviolet Aging

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Applied Research of the Composite Antiager in Asphalt

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.919-921.1191 ◽

2014 ◽

Vol 919-921 ◽

pp. 1191-1194

Author(s):

Ling Zou ◽

Nan Xiang Zheng

Keyword(s):

Applied Research ◽

Test System ◽

Simulation Test ◽

Oxidative Aging ◽

Modified Asphalt ◽

Positive Effects ◽

Ultraviolet Aging

The simulation test system was established to study the performance of the thermo-oxidative aging and ultraviolet aging of 90# matrix asphalt and SBSI-C modified asphalt which were added composite antiager. Mechanism of thermo-oxidative aging and ultraviolet aging of asphalt was also analyzed. The results proved that : indexes of thermo-oxidative aging and ultraviolet aging of 90# matrix asphalt and SBSI-C modified asphalt were improved after adding the composite antiager,and composite antiager had positive effects to resist the aging of asphalt.

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