scholarly journals Evaluating the effect of asphalt binder modification on the low-temperature cracking resistance of hot mix asphalt

2019 ◽  
Vol 11 ◽  
pp. e00238 ◽  
Author(s):  
B.B. Teltayev ◽  
C.O. Rossi ◽  
G.G. Izmailova ◽  
E.D. Amirbayev ◽  
A.O. Elshibayev
Keyword(s):  
Low Temperature ◽  
Hot Mix Asphalt ◽  
Asphalt Binder ◽  
Cracking Resistance ◽  
Low Temperature Cracking

scholarly journals Recycling Aged Asphalt Using Hard Asphalt Binder for Hot-Mixing Recycled Asphalt Mixture

2021 ◽  
Vol 11 (12) ◽  
pp. 5698
Author(s):  
Jian Zhou ◽  
Jing Li ◽  
Guoqiang Liu ◽  
Tao Yang ◽  
Yongli Zhao
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Cracking Resistance ◽  
Recycled Asphalt ◽  
Reclaimed Asphalt ◽  
Aged Asphalt ◽  
Low Temperature Cracking

Increasing the content of reclaimed asphalt pavement material (RAP) in hot-mix recycled asphalt mixture (RHMA) with a satisfactory performance has been a hot topic in recent years. In this study, the performances of Trinidad lake asphalt (TLA), virgin asphalt binder, and aged asphalt binder were first compared, and then the modification mechanism of TLA on virgin asphalt and aged asphalt was explored. Furthermore, the RHMA was designed in accordance with the French norm NF P 98-140 containing 50% and 100% RAP, and their high-temperature stability, low-temperature cracking resistance, and fatigue performances were tested to be compared with the conventional dense gradation AC-20 asphalt mixture. The results show that the addition of TLA changes the component proportion of virgin asphalt binder, but no new functional groups are produced. The hard asphalt binder modified by TLA has a better rutting resistance, while the fatigue and cracking resistance is lower, compared to both aged and virgin asphalt. The high-modulus design concept of RHMA is a promising way to increase the RAP content in RHMA with acceptable performance. Generally, the RHMA with 50% RAP has similar properties to AC-20. And, when the RAP content reaches 100%, the high- and low-temperature performance and anti-fatigue performance of RHMA are better than AC-20 mixture. Thus, recycling aged asphalt using hard asphalt binder for hot-mixing recycled asphalt mixture to increase the RAP content is feasible.

Low-temperature cracking resistance, fatigue performance and emission reduction of a novel silica gel warm mix asphalt binder

2020 ◽  
Vol 231 ◽  
pp. 117118 ◽  
Author(s):  
Haoyuan Luo ◽  
Huikang Leng ◽  
Haibo Ding ◽  
Jiaqiu Xu ◽  
Haoyu Lin ◽  
...  
Keyword(s):  
Low Temperature ◽  
Silica Gel ◽  
Emission Reduction ◽  
Asphalt Binder ◽  
Warm Mix Asphalt ◽  
Fatigue Performance ◽  
Cracking Resistance ◽  
Performance And Emission ◽  
Low Temperature Cracking

Effects of Aging on the Low Temperature Properties of Asphalt Binder and its Mixture

2017 ◽  
Vol 898 ◽  
pp. 2018-2022 ◽  
Author(s):  
Zhang Chao Cui ◽  
Ling Pang ◽  
Nai Zhi Zhang ◽  
Xue Mei Zhang ◽  
He Chuan Li
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Physical Parameters ◽  
Cracking Resistance ◽  
Three Point Bending ◽  
Aging Properties ◽  
Modified Asphalt Binder ◽  
Low Temperature Cracking ◽  
Effects Of Aging

Effect of aging on physical properties of asphalt binder was studied. The relationship between degradation of the low temperature properties of asphalt binder and asphalt mixture was also investigated. After the thin film oven test (TFOT) with different aging time, the AH-70 binder and the SBS modified asphalt binder were used to prepared asphalt mixture samples. The binder was characterized using penetration, ductility and Beam Bending Rheometer (BBR), and the low temperature cracking resistance of asphalt mixture was studied by Three-point Bending Fracture (TBF). The correlation between different physical parameters of binder, as well as between different aging properties of the binder and asphalt mixture, was examined. The results showed that aging influenced binder physics significantly, and resulted in a decline in the properties of low temperature cracking resistance of asphalt mixture. Although, aging susceptibility of binder and asphalt mixture may be ranked differently when different evaluation methods ware used, a strong correlation was observed between the aging of binder and asphalt mixture.

Evaluation of low-temperature cracking resistance diagrams of steels used in the oil and gas industry

2017 ◽  
pp. 116-119
Author(s):  
R.S. Zaynullin ◽  
◽  
R.A. Kharisov ◽  
A.N. Muhametzyanov ◽  
◽  
...  
Keyword(s):  
Low Temperature ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Cracking Resistance ◽  
Gas Industry ◽  
Low Temperature Cracking

Evaluation of Arabian Asphalt Binder for Low-Temperature Cracking

1998 ◽  
Vol 10 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Rezqallah H. Ramadhan ◽  
Hamad I. Al-Abdul Wahhab ◽  
Ibrahim M. Asi ◽  
Ibrahim A. Al-Dubabe
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Low Temperature Cracking

Evaluation of Carbon Nanotubes Asphalt Modification Using the Superpave Criteria

2021 ◽  
Vol 902 ◽  
pp. 135-143
Author(s):  
Mohammad Ali Khasawneh ◽  
Khalid Ghuzlan ◽  
Nada Bani Melhem
Keyword(s):  
Carbon Nanotubes ◽  
Low Temperature ◽  
Rheological Properties ◽  
Asphalt Binder ◽  
Fatigue Cracking ◽  
Asphalt Binders ◽  
Asphalt Pavements ◽  
Low Temperature Cracking ◽  
Asphalt Modification ◽  
Rotational Viscosity

Rutting, fatigue cracking and low temperature cracking are the most important distresses in asphalt pavements as a result of changes in rheological properties of asphalt binder. Many types of modifiers were used to enhance asphalt behavior at both low and high temperatures. In this study, carbon nanotubes (CNT) were used as one of many nanomaterials that take a large attention in the latest research related to asphalt modification against different types of distresses. Effect of CNT on rheological properties of asphalt binder was investigated by testing unmodified and CNT modified asphalt binders using two of Superpave devices: Dynamic Shear Rheometer (DSR) and Bending Beam Rheometer (BBR). Penetration, softening point, flash point and rotational viscosity (RV) tests were carried out as well. CNT was added in 0.1%, 0.5% and 1% by weight of asphalt binder. It was found that adding CNT in 0.5% and 1% increase stiffness of asphalt and consequently asphalt pavement rutting resistance. On the other hand, this increase in stiffness affected pavement behavior adversely which is not desirable for fatigue and low temperature cracking. However, Superpave specifications were still satisfied and asphalt binder’s relaxation properties were improved upon CNT modification. It was eventually found that 0.5% of CNT is the optimum percentage for the best performance.

Sign in / Sign up

Export Citation Format

Share Document