Property of Anti-Ultraviolet Aging of LDHs Modified Asphalt

2018 ◽  
Vol 33 (3) ◽  
pp. 634-638 ◽  
Author(s):  
Hechuan Li ◽  
Jianying Yu ◽  
Shaopeng Wu ◽  
Ling Pang ◽  
Yuanyuan Li ◽  
...  
Keyword(s):  
Modified Asphalt ◽  
Ultraviolet Aging

scholarly journals Resistance to Ultraviolet Aging of Nano-SiO2 and Rubber Powder Compound Modified Asphalt

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5067 ◽  
Author(s):  
Guoping Qian ◽  
Changdong Yang ◽  
Haidong Huang ◽  
Xiangbing Gong ◽  
Huanan Yu
Keyword(s):  
Uv Light ◽  
Temperature Property ◽  
Uv Aging ◽  
Rubber Powder ◽  
Modified Asphalt ◽  
Nano Sio2 ◽  
Aging Property ◽  
Compound Modification ◽  
Ultraviolet Aging ◽  
Low Temperature Property

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.

Study on the Influence of Asphalt Performance for Ultraviolet Aging

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.

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

2008 ◽  
Author(s):  
Jiani Wang ◽  
Yiqiu Tan ◽  
Zhongjun Xue ◽  
Zhongliang Feng ◽  
Huining Xu
Keyword(s):  
Modified Asphalt ◽  
Property Changes ◽  
Ultraviolet Aging

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

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

Applied Research of the Composite Antiager in Asphalt

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.

scholarly journals Effect of the Amount of Mineral Powder on the Ultraviolet Aging Properties of Asphalt

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Xiangbing Xie ◽  
Shenjia Tong ◽  
Yabi Ding ◽  
Hongni Liu ◽  
Linyuan Liang
Keyword(s):  
Gel Permeation Chromatography ◽  
Uv Aging ◽  
Modified Asphalt ◽  
Aging Properties ◽  
The Matrix ◽  
Mineral Powder ◽  
Styrene Butadiene ◽  
Sbs Modified Asphalt ◽  
Asphalt Mortar ◽  
Ultraviolet Aging

Mortar has an important influence on the viscosity and durability of a mixture. The effects of the amount of mineral powder in asphalt mortar on the ultraviolet (UV) aging properties of asphalt were investigated by a Fourier transform infrared spectrum (FTIR), gel permeation chromatography (GPC), and dynamic shear rheometer (DSR). The FTIR results show that the UV-resistant aging ability of asphalt mortar was superior to asphalt and that the carbonyl indices of the SBS- (styrene-butadiene-styrene-) asphalt mortar and matrix asphalt mortar were more significant. The GPC results show that the molecular weight distribution coefficient (Mw/Mn) of the SBS-asphalt-filler mastic is 1.0 and that of the matrix asphalt-filler mastic is 1.2, which is the largest. The macro-property is the most stable. The DSR results show that the matrix asphalt-filler mastic ranging from 1.0 to 1.2 and the SBS-modified asphalt-filler mastic ranging from 0.8 to 1.0 show the best UV aging resistance. Therefore, the effects of the amount of mineral powder cannot be ignored, suggesting that the best mass ratio of the matrix asphalt mortar is 1.2 and that of the SBS-modified asphalt mortar is 1.0 during the UV aging process.

scholarly journals Synergetic Effect of Nano-ZnO and Trinidad Lake Asphalt for Antiaging Properties of SBS-Modified Asphalt

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Yiqun Zhan ◽  
Jun Xie ◽  
Yulin Wu ◽  
Yifan Wang
Keyword(s):  
Rheological Properties ◽  
Synergetic Effect ◽  
Characteristic Functional ◽  
Nano Zno ◽  
Modified Asphalt ◽  
Nano Zinc Oxide ◽  
Nano Zinc ◽  
Effects Of Aging ◽  
Sbs Modified Asphalt ◽  
Ultraviolet Aging

In order to address the influence of aging on the performance degradation of SBS-modified asphalt, a composite modification of SBS-modified asphalt by nano-zinc oxide (nano-ZnO) and Trinidad Lake asphalt (TLA) was proposed. Several tests were conducted after adding nano-ZnO and TLA to SBS-modified asphalt, including a rotary film oven test (RTFOT), ultraviolet aging (UV), and the pressure aging vessel test (PAV). The conventional physical index, rheological index, and four-component content of SBS-modified asphalt before and after three aging modes were tested, and the characteristic functional groups in SBS-modified asphalt were tracked and analyzed by Fourier transform infrared spectroscopy (FTIR). The results show that the effects of aging on the rheological properties of SBS-modified asphalt are clearly reduced by adding different proportions of nano-ZnO and TLA in the process of thermal oxygen aging and the ultraviolet aging test, and the antiaging ability of SBS-modified asphalt is clearly improved. To improve the conventional performance and rheological properties of SBS-modified asphalt, an incorporation ratio of 3% nano-ZnO + 25% TLA was proposed. At the same time, the increased rate of heavy components and the change index of the colloidal instability index in the SBS-modified asphalt under the blending ratio were significantly lower than the blank SBS-modified asphalt samples in the same aging mode. FTIR spectra also showed that SBS-modified asphalt performance deterioration were mainly caused by long-term aging and ultraviolet aging. The addition of nano-ZnO and TLA effectively reduced the increase of carbonyl groups and the breakage of the C=C double bond in butadiene and synergistically improved the comprehensive aging resistance of SBS-modified asphalt. Therefore, the use of this modification is an effective method to solve the aging problem of SBS-modified asphalt.

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