Effect of ultraviolet aging on dynamic mechanical properties of SBS modified asphalt mortar

2021 ◽  
Vol 281 ◽  
pp. 122328 ◽  
Author(s):  
Huanan Yu ◽  
Ding Yao ◽  
Guoping Qian ◽  
Jun Cai ◽  
Xiangbing Gong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Modified Asphalt ◽  
Dynamic Mechanical ◽  
Sbs Modified Asphalt ◽  
Asphalt Mortar ◽  
Ultraviolet Aging

Study of Dynamic Mechanical Properties on Cement Asphalt Mortar of High Elastic Type

2014 ◽  
Vol 1049-1050 ◽  
pp. 346-353
Author(s):  
Lei Fang ◽  
De Hua Deng ◽  
Jian Wei Peng ◽  
Yong Wang ◽  
Qing Tian
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Strain Rate ◽  
High Speed ◽  
Split Hopkinson Pressure Bar ◽  
Dynamic Mechanical Properties ◽  
Experimental Result ◽  
Dynamic Mechanical ◽  
Ca Mortar ◽  
Asphalt Mortar

Dynamic mechanical properties of high elastic type cement and asphalt mortar (CA mortar) for high-speed railway was studied by split Hopkinson pressure bar (SHPB) in this paper. The experimental result show that the compressive strength of CA mortar increases gradually with the increasing of strain-rate. However, the increasing rate of compressive of CA mortar decreases with the further increasing strain-rate. The increasing rate of compressive strength is 57.65% for the strain-rate ranging from 25.16 s-1to 35.79 s-1 and 20.39% for the strain-rate from 94.64 up to 111.15 s-1, respectively. The larger the strain-rate is, the more serious the cracking is when CA mortar specimen damaged. The specific energy adsorption of CA mortar increases with the increasing strain-rate.

Dynamic mechanical properties of cement and asphalt mortar based on SHPB test

2014 ◽  
Vol 70 ◽  
pp. 217-225 ◽  
Author(s):  
You-jun Xie ◽  
Qiang Fu ◽  
Ke-ren Zheng ◽  
Qiang Yuan ◽  
Hao Song
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Shpb Test ◽  
Asphalt Mortar

An Experimental Study on Pavement Performance and Dynamic Mechanical Properties of Cold Recycled Mixtures Consisted of Modified Asphalt Emulsion-Cement Binders

2012 ◽  
Vol 512-515 ◽  
pp. 2949-2955 ◽  
Author(s):  
Yin Tao Guo ◽  
Zhen Qing Liu ◽  
Qing Quan Liu ◽  
Xiao Ming Yi
Keyword(s):  
Mechanical Properties ◽  
Material Selection ◽  
Design Procedure ◽  
Temperature Stability ◽  
Dynamic Mechanical Properties ◽  
Pavement Performance ◽  
Original Material ◽  
Asphalt Emulsion ◽  
Modified Asphalt ◽  
Dynamic Mechanical

The objective of this study is to evaluate pavement performance and dynamic mechanical properties of cold recycled mixtures consisted of modified asphalt emulsion-cement binder (CRMC). A cold recycled mixture design procedure that includes original material selection and gradation design has been applied. Then pavement performance of CRMC has been comparatively analyzed with the recycled mixtures without cement by theoretical and experimental methods. In addition, the tests for dynamic mechanical properties of CRMC have been conducted. The overall performance tests results indicate that CRMC has good strength, moisture stability, high temperature stability, low temperature stability, anti-shrinkage and fatigue resistance properties compared to the cold recycled mixtures without cement; Dynamic mechanical properties confirm that CRMC are similar to the hot mixtures asphalt (HMA), although a certain amount of cement is added.

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.

Polyurethanes based on hydroxylated rapeseed oil: thermal and dynamic mechanical properties

2015 ◽  
Vol 37 (2) ◽  
pp. 162-167
Author(s):  
V.A. Vilensky ◽  
◽  
L.V. Kobrina ◽  
S.V. Riabov ◽  
Y.Y. Kercha ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Rapeseed Oil ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical
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