Behavioural mechanism of SBR, LDPE, and SBS modified bituminous mixtures

Mansourian, Ahmad; Ameri, Mahmoud; Moghaddam, Mohammad Hasan Mirabi; Riahi, Esmat; Shaker, Hamid; Ameri, A.

doi:10.1080/14488353.2021.1993527

Cited by 3 publications

(4 citation statements)

References 26 publications

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“…This may be attributed to the decrease in fatigue life caused by insoluble cellulose fiber, which was also found in the previous study of Norgbey et al (2020). In addition, previous studies added the 7.5% LDPE into the 85/100 pen grade bitumen, and they found that the fatigue life of the LDPE-modified bitumen was 14075 and 721 at two strain levels (2.5% and 5%) (Mansourian et al 2022). In this study, the fatigue life of the WMB modified by 1% WLP can be up to 18286 (2.5%) and 2988 (5%) at the different strain levels.…”

Section: Las Testssupporting

confidence: 69%

Feasibility investigation of using waste laminated packaging as bitumen performance enhancer

Fu,

Liu,

Bornmann

et al. 2024

Mater. Res. Express

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Million tons of laminated packaging are extensively used in aseptic food packages due to its merits in transporting and storing liquid foods, and thus a huge amount of waste laminated packaging (WLP) needs to be handled urgently. The main component of the WLP is the cellulose fibers, followed by the low-density polyethylene (LDPE) and aluminum. Previous studies have reported the individual enhancement effect of the LDPE and cellulose fibers as bitumen modifiers. However, the research on the feasibility and effectiveness of using WLP as a bitumen modifier is limited. In this study, WLP manually collected from milk and fruit juice packages was processed into particles. The performance of bitumen modified by WLP was characterized and compared with that of base bitumen by conventional and rheological tests. The testing results showed that the addition of WLP increases the softening point and peak force, and decreases the penetration and ductility. Meanwhile, a higher WLP content led to a greater modification index, higher failure temperature, lower non-recoverable creep compliance and lower stress sensitivity. Furthermore, the stabilizing effects of LDPE and the sufficient crosslinking of the cellulose fibers are beneficial to the fatigue life of bitumen.

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Section: Las Testssupporting

confidence: 69%

Feasibility investigation of using waste laminated packaging as bitumen performance enhancer

Fu,

Liu,

Bornmann

et al. 2024

Mater. Res. Express

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“…For this reason, the search for an alternative modifier with abundant sources and low costs to enhance the low-temperature crack resistance of polyurethane-modified asphalt becomes imperative. Butadiene rubber, a high-quality synthetic rubber, is characterized by its wide availability and affordable price [15,17]. Research has shown that the addition of a small amount of butadiene rubber can significantly enhance the low-temperature performance of asphalt and improve the low-temperature crack resistance of asphalt mixtures [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Butadiene rubber, a high-quality synthetic rubber, is characterized by its wide availability and affordable price [15,17]. Research has shown that the addition of a small amount of butadiene rubber can significantly enhance the low-temperature performance of asphalt and improve the low-temperature crack resistance of asphalt mixtures [17][18][19]. The addition of butadiene rubber does not significantly enhance the high-temperature stability of asphalt.…”

Section: Introductionmentioning

confidence: 99%

Research on high and low temperature rheological properties of TPU/SBR composite modified asphalt

Chen,

Liu,

Rong

et al. 2024

Mater. Res. Express

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In road engineering, SBS modifier has been widely applied in China to enhance the quality of asphalt pavement. However, without considering the physical and chemical properties of SBS modifier and the asphalt substrate, alternative polymerization methods for asphalt modification that offer better performance and economic benefits have not been explored. In this study, an approach was taken to compound modify the base asphalt by incorporating Thermoplastic polyurethane (TPU) and Styrene Butadiene Rubber (SBR). The high and low temperature rheological properties of the modified asphalt were examined using tests such as Rotational Viscosity (RV) test, Dynamic Shear Rheological test (DSR), Multiple Stress Creep Rheological test (MSCR), and Bending Beam Rheological test (BBR). The modification mechanism of the mixed modified asphalt, combining SBR and TPU, was investigated through fluorescence microscope testing. The RV test revealed that the inclusion of TPU and SBR enhanced the viscosity of the asphalt to a certain extent, affording it favorable workability during construction and improved resistance against high temperature deformation. DSR and MSCR tests demonstrated that the incorporation of TPU significantly bolstered the external load resistance, deformation recovery, rutting resistance, and overall stability of the SBR modified asphalt under high temperature conditions; The BBR test proves that the composite modified asphalt has excellent low temperature crack resistance. The FM tests have shown that TPU are effective in reducing the segregation that may occur in SBR-modified asphalt, thus improving the performance of the composite modified asphalt.

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“…An important part of any road that tends to have a signifcant impact on its quality and comfort is the pavement. Road pavements can be made with a variety of mixtures, among which the top choice is asphalt mixtures because of their good performance, comfort, and ease of construction and maintenance [1]. Asphalt mixtures consist of two main components: bitumen and aggregate.…”

Section: Introductionmentioning

confidence: 99%

Optimization of CLS Content of Asphalt Mixtures Based on Balanced Mix Design Approach

Ziaee

Fatemi

Shaker

et al. 2023

Advances in Civil Engineering

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Over the years, there have been many studies on the performance improvement of asphalt mixtures using different materials and additives, especially those of the recycled variety, because of the environmental benefits they bring to the design. This study investigated the properties of asphalt mixtures made with different amounts of calcium lignosulfonate (CLS), which is a waste product, and used the Balanced Mix Design (BMD) approach to determine the appropriate mix design for CLS-containing mixtures. In this process, the results of the dynamic creep test were used as a measure of rutting resistance, the results of the indirect tensile test were used as a measure of moisture susceptibility, and the results of the Illinois Flexibility Index Test (IFIT) and Indirect Tensile Cracking Test (IDEAL-CT) were used independently as a measure of cracking resistance. On the other hand, since previous studies have suggested that CLS has antiaging properties, the specimens were made and tested in two groups: those with long-term aging and without long-term aging. So the objective was to determine the amount of CLS that should ideally be used as a bitumen additive in aged and unaged asphalt mixtures. The results showed that using 15% or 20% CLS will always yield acceptable outcomes in terms of BMD criteria for both aged and unaged conditions. However, a CLS content of 10% may also be acceptable for both aged and unaged conditions if IDEAL-CT results are used as the measure of cracking resistance.

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Behavioural mechanism of SBR, LDPE, and SBS modified bituminous mixtures

Cited by 3 publications

References 26 publications

Feasibility investigation of using waste laminated packaging as bitumen performance enhancer

Feasibility investigation of using waste laminated packaging as bitumen performance enhancer

Research on high and low temperature rheological properties of TPU/SBR composite modified asphalt

Optimization of CLS Content of Asphalt Mixtures Based on Balanced Mix Design Approach

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