Performance evaluation of tourmaline modified asphalt mixture based on grey target decision method

2019 ◽  
Vol 205 ◽  
pp. 137-147 ◽  
Author(s):  
Qian Chen ◽  
Chaohui Wang ◽  
Penghui Wen ◽  
Xiaolong Sun ◽  
Tengteng Guo
Keyword(s):  
Performance Evaluation ◽  
Asphalt Mixture ◽  
Modified Asphalt ◽  
Decision Method

scholarly journals High-Temperature Performance of Asphalt Mixtures: Preliminary Analysis for the Standard Technical Index Based on Gray Relational Analysis Method

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Jian Xu ◽  
Yan Gong ◽  
Li-Biao Chen ◽  
Tao Ma ◽  
Jun-Cheng Zeng ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
High Temperature ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Gray Relational Analysis ◽  
Low Grade ◽  
Modified Asphalt ◽  
Relational Analysis ◽  
Temperature Performance

Aiming to evaluate the high-temperature performance of asphalt binders and asphalt mixtures and to investigate the reliability of the standard technical indexes to evaluate the performance of the asphalt, six typically used asphalt types were employed in this study. The standard high-temperature rheological test, the multiple stress creep recovery (MSCR) test, and the zero-shear viscosity (ZSV) test were employed to characterize the high-temperature performance and non-Newtonian fluid properties of the asphalt. Meanwhile, the high-temperature performance of the asphalt mixture was evaluated through the rutting tests based on the mixture design of AC-13. In general, the modified asphalt performed better than the unmodified asphalt according to the high-temperature rheological properties tests. The ranking of the six kinds of asphalt was confirmed to be different in various laboratory tests. The test results of the asphalt binders showed that the Tafpack Super- (TPS-) modified asphalt performed best in the MSCR and ZSV tests, while the low-grade asphalt PEN20 had the best technical indexes in the dynamic shear rheometer (DSR) test. Besides, the relation between the asphalt and the asphalt mixture was analyzed by gray relational analysis (GRA) method. The present rutting indicator G ∗ / sin   δ  and  G ∗ / 1 − sin   δ ⋅   tan   δ − 1 for evaluating the asphalt mixtures’ high-temperature performance might no longer be suitable. The Cross/Williamson model was the most suitable for calculating and fitting the ZSV, which could be used as the key indicator of the high-temperature performance evaluation of the asphalt. This work lays a foundation for the further study of the high-temperature performance evaluation of asphalt binders.

scholarly journals Performance Evaluation and Improving Mechanisms of Diatomite-Modified Asphalt Mixture

Materials ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 686 ◽  
Author(s):  
Chao Yang ◽  
Jun Xie ◽  
Xiaojun Zhou ◽  
Quantao Liu ◽  
Ling Pang
Keyword(s):  
Performance Evaluation ◽  
Asphalt Mixture ◽  
Modified Asphalt

Performance Evaluation of High Modulus Asphalt Mixture with Button Rock Asphalt

2012 ◽  
Vol 549 ◽  
pp. 558-562 ◽  
Author(s):  
Shao Wen Du ◽  
Chao Fei Liu
Keyword(s):  
Performance Evaluation ◽  
Complex Modulus ◽  
Asphalt Mixture ◽  
Superior Performance ◽  
Moisture Resistance ◽  
Test Results ◽  
High Modulus ◽  
Performance Properties ◽  
Modified Asphalt ◽  
Sbs Modified Asphalt

In this paper, Button rock asphalt particle was directly added into hot asphalt mixture (HMA) to produced high modulus asphalt mixture (HMAM). In order to evaluate the performance properties of HMAM with BRA, dynamic compressive complex modulus (E*) test, rutting test and moisture resistance test were used to investigate HMAM with BRA and HMA with SBS modifier. Test results indicate BRA can greatly improve dynamic E*and rutting resistance of HMA compared with SBS modified asphalt mixture. Moisture resistance ability of HMAM with BRA has the same level with SBS modified asphalt mixture. Therefore, BRA particle can be used to produce HMAM, which have more superior performance properties than SBS asphalt modifier.

Evaluation of Low Temperature Performance for Diatomite Modified Asphalt Mixture

2011 ◽  
Vol 413 ◽  
pp. 246-251 ◽  
Author(s):  
Yi Bo Zhang ◽  
Hong Zhou Zhu ◽  
Guo An Wang ◽  
Tuan Jie Chen
Keyword(s):  
Performance Evaluation ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Bending Test ◽  
Large Temperature ◽  
Index Test ◽  
Stiffness Modulus ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Low Temperature Performance

According to the low temperature disease on asphalt pavement in the areas of cold and large temperature difference between day and night, conventional index test and low temperature bending creep test were used to analyze the influence of diatomite dosage on the low temperature performance of diatomite modified asphalt, and the mixture’s low temperature bending test was applied for verification. Test results show that after diatomite’s addition into asphalt, equivalent brittle point reduces significantly, ductility test cannot estimate low temperature performance very well, stiffness modulus increases and relaxation ability decreases; meanwhile, peak value of stiffness modulus and strain energy of asphalt mixture can be found, the low temperature crack resistance is enhanced; optimum dosage of diatomite is 13%. So, the low temperature performance evaluation method of diatomite modified asphalt mixture through BBR’s low temperature performance evaluation on diatomite modified asphalt remains to be discussed.

Performance Evaluation of Nano-Montmorillonite/SBS Modified Asphalt Paving Mixtures

2011 ◽  
Vol 688 ◽  
pp. 191-194 ◽  
Author(s):  
Xin De Tang ◽  
Xiang Li Kong ◽  
Fang Huang ◽  
Jun Li
Keyword(s):  
Performance Evaluation ◽  
Mechanical Performance ◽  
Asphalt Mixture ◽  
The Other ◽  
Climatic Zones ◽  
Moisture Susceptibility ◽  
Pavement Materials ◽  
Modified Asphalt ◽  
Asphalt Paving ◽  
Sbs Modified Asphalt

To provide the valuable references for pavement materials applied in various climatic zones, a series of asphalts paving mixtures including common asphalt mixture, SBS modified asphalt mixture and nano-montmorillonite (NMMT)/SBS composite modified asphalt mixture were designed. Marshall tests were carried out to evaluate the effect of different modifiers on the property of these asphalt paving mixtures. Compared with the other two mixtures, NMMT/SBS composite modified asphalt shows fine mechanical performance and moisture susceptibility. These results indicate that NMMT/SBS as a composite modifier can result in excellent properties for asphalt paving mixture.

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