Comparison of SBS-Modified Asphalt Rheological Properties during Simple-Aging Test

Zhang, Zhuang; Han, Sen; Han, Xiao; Cheng, Xianpeng; Yao, Tengfei

doi:10.1061/(asce)mt.1943-5533.0003316

Cited by 15 publications

(6 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The wider the range of this peak area, the lower the sensitivity of asphalt to strain under a certain shearing rate, indicating that the fatigue performance of asphalt is better. In the peak area, it is considered that the asphalt has begun to undergo fatigue failure when the shear stress of asphalt decreases with the increase of the shear strain 44 . From Figure 8, it can be clearly seen that the peak area of DRMA‐PPA is the widest, which demonstrates that it can maintain a relatively high stress state for a longer time, in other words, the fatigue performance of DRMA‐PPA is the best.…”

Section: Resultsmentioning

confidence: 99%

Effects of polyphosphoric acid (PPA), styrene‐butadiene‐styrene (SBS), or rock asphalt on the performance of desulfurized rubber modified asphalt

Liu

Zhang

Li³

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Effects of polyphosphoric acid (PPA), styrene‐butadiene‐styrene (SBS), or rock asphalt on the performance of desulfurized rubber modified asphalt

Liu

Zhang

Li³

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The dynamic shear rheometer (DSR) test is a widely used method for evaluating the rheological properties of polymer-modified asphalt binders and the compatibility between asphalt and polymers [87]. In other words, a dynamic shear rheometer (DSR) is used to measure viscosities at medium-to-high temperatures [88].…”

Section: Dynamic Shear Rheometer (Dsr) Testmentioning

confidence: 99%

“…Frequently, polymer-modified binders are susceptible to oxidation, and the use of antioxidants can be advantageous. Binder modification typically employs various types of antioxidants, such as hindered phenols, phosphites, and organic zinc compounds, which retard oxidation by scavenging free radicals or breaking the hydroperoxides formed during oxidation [87,88]. These intermediates are extremely reactive and significantly contribute to oxidation.…”

Section: Antioxidantsmentioning

confidence: 99%

A Comprehensive Literature Review on Polymer-Modified Asphalt Binder

Emtiaz,

Imtiyaz,

Majumder

et al. 2023

CivilEng

View full text Add to dashboard Cite

Due to periodic variations in temperature and heavy traffic loading, hot-mix asphalt (HMA) pavements undergo considerable distress during their service life. The rheological properties of asphalt binder, when subjected to complex physical and chemical processes, make it stiff and sometimes brittle, which ultimately plays a huge part in pavement deterioration. This phenomenon is commonly known as asphalt aging. Incorporating polymer modifiers with virgin asphalt can work as an effective means to change the binder properties and alleviate the issues related to asphalt aging. Different types of polymers, including elastomers, plastomers, and reactive polymers, can mixed in different combinations with the virgin asphalt to create polymer-modified binders (PMBs). In general, polymers are typically added to the virgin asphalt binder in PMB manufacturing at weight percentages ranging from 3% to 7%. Previous research suggests that many polymer-modified binders (PMBs) show great resiliency and perform extremely well during field and laboratory testing, although the complex nature of asphalt itself makes it significantly difficult to understand the relationship and compatibility of the asphalt–polymer system. This paper aims to develop a comprehensive literature review on the chemical aspects, microscopic structure, and compatibility of polymers with virgin asphalt. It was found that swelling, storage stability, blend morphology, and the polymer mixing technique play a great role in the compatibility of asphalt–polymer systems. Thermoplastic elastomers (e.g., styrene–butadiene–styrene) and plastomers (e.g., ethylene–vinyl acetate) are the most used polymer modifiers for asphalt binders. The compatibility of the polymer–asphalt system can be improved by sulfur vulcanization, antioxidants, hydrophobic clay minerals, functionalization, and reactive polymers, among other techniques.

show abstract

“…high temperature stability of asphalt [17][18][19]. These additives not only fail to fundamentally balance the high and low temperature performance of SBS modified asphalt, but may also affect the lifespan of modified asphalt, increase the cost, and pollute the environment.…”

Section: Asphalt Model Establishmentmentioning

confidence: 99%

“…Some researchers are devoted to solving the problem of the storage stability of SBS modified asphalt and have developed many stabilizers and compatibilizers that promote the mutual solubility of SBS and asphalt, such as sulfur powder and furfural extraction oil, which improve the problem of the segregation of the SBS modified asphalt to a certain extent, they make the asphalt too hard and brittle at low temperatures, resulting in poor low temperature performance [13][14][15][16]. Some researchers hope to solve the aging problem of modified asphalt by introducing a light component such as rejuvenating agents and antioxidants, but this often reduces the high temperature stability of asphalt [17][18][19]. These additives not only fail to fundamentally balance the high and low temperature performance of SBS modified asphalt, but may also affect the lifespan of modified asphalt, increase the cost, and pollute the environment.…”

Section: Introductionmentioning

confidence: 99%

Study on SBS Optimal Block Ratio Based on Molecular Simulation

et al. 2022

View full text Add to dashboard Cite

The block ratio of SBS is an important factor influencing the swelling effect of modified asphalt, but the effect of the block ratio in the swelling process cannot be accurately studied by macro testing. In order to solve this problem and screen out the optimal SBS block ratio, molecular models of asphalt and SBS with different block ratios were established by molecular simulation technology at the microscopic level, and an asphalt–SBS interaction layer system was established on this basis. The diffusion and adhesion effects of SBS with different block ratios were evaluated by calculating the immersion depth, diffusion coefficient, and adhesion work of SBS in asphalt. The results show that SBS has a physical cross-linking reaction with asphalt during swelling, and SBS with a higher butadiene block ratio exhibits a deeper immersion depth; thus, SBS with a 3/7 block ratio has the best performance in the modification process, which is superior to SBS with other block ratios, in terms of both the diffusion and adhesion effect. The performance of asphalt modified by SBS with different block ratios was tested using penetration, softening point, and ductility, and the results were consistent with the simulation results, which proved the reliability of the microscopic conclusions from a macro perspective.

show abstract

Comparison of SBS-Modified Asphalt Rheological Properties during Simple-Aging Test

Cited by 15 publications

References 24 publications

Effects of polyphosphoric acid (PPA), styrene‐butadiene‐styrene (SBS), or rock asphalt on the performance of desulfurized rubber modified asphalt

Effects of polyphosphoric acid (PPA), styrene‐butadiene‐styrene (SBS), or rock asphalt on the performance of desulfurized rubber modified asphalt

A Comprehensive Literature Review on Polymer-Modified Asphalt Binder

Study on SBS Optimal Block Ratio Based on Molecular Simulation

Contact Info

Product

Resources

About