Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

Ameri, Mahmoud; Vamegh, Mostafa; Rooholamini, Hamed; Haddadi, Farshad

doi:10.1155/2018/5891963

Cited by 27 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…OBC for unmodified sample was 4.38% while for 1% and 3% CNT-modified samples it was 4.42% and 4.47%, respectively. Researchers have experienced both increases and decreases in the optimum binder content requirements when utilizing nanomaterials [35,36]. In this study, an increase in optimum binder content was experienced with the increase in CNT dosage.…”

Section: Permanent Deformation Analysismentioning

confidence: 79%

Carbon Nanotubes (CNTs) in Asphalt Binder: Homogeneous Dispersion and Performance Enhancement

et al. 2018

View full text Add to dashboard Cite

Conventional binders cannot meet the current performance requirements of asphaltic pavements due to increase in traffic volumes and loads. Nanomaterials, due to their exceptional mechanical properties, are gaining popularity as bitumen modifiers to enhance the performance properties of the asphaltic concrete. Carbon Nanotubes (CNTs) are one of the most widely used nanomaterials because of their strength properties, light weight, small size, and large surface area. CNT addition results in improved substrate characteristics as compared to other modifiers. Due to high length to diameter ratio, dispersion of CNTs in bitumen is a complex phenomenon. In this study, dispersion of CNTs in bitumen was carried out using both dry and wet mixing techniques, the latter was selected on the basis of homogeneity of the resultant asphalt mixture. Scanning Electron Microscopy (SEM) was used to check the dispersion of CNTs in binder while Fourier Transform Infrared Spectroscopy (FTIR) was carried out to ensure the removal of solvent used for wet mixing. Conventional bitumen tests (penetration, softening point, and ductility), dynamic shear rheometer tests, rolling bottle tests, and bitumen bond strength tests were employed to check the improvement in the rheological and adhesion properties of bitumen while wheel tracker test was used to check the improvement in resistance against permanent deformation of asphalt mixtures after addition of CNTs. Results show that CNTs improved the higher temperature performance and permanent deformation resistance in both binder and mixtures. Improvement in bitumen–aggregate adhesion properties and moisture resistance was also observed.

show abstract

Section: Permanent Deformation Analysismentioning

confidence: 79%

Carbon Nanotubes (CNTs) in Asphalt Binder: Homogeneous Dispersion and Performance Enhancement

et al. 2018

View full text Add to dashboard Cite

show abstract

“…7,8 showed that modifying asphalt binder with SBR/WNCP nanocomposites increases rutting resistance that implies a more viscoelastic behavior and more stiffness than that of control asphalt. This trend is mainly due to the fine intercalation and penetration of WNCP into SBR matrix structure [34]. Also, it was noticed that blend 30 exhibited the highest rutting resistance that may be due to the high stiffness of WNCP.…”

Section: Rheological Properties Of Modified Asphaltmentioning

confidence: 94%

Effect of SBR/Waste Ceramic Powder Nanocomposite on High Temperature Performance of Asphalt Binder

2021

View full text Add to dashboard Cite

Modifying asphalt binder with styrene butadiene rubber (SBR) improves low temperature performance (resistance to cracking), elastic recovery, and ductility of binder. However, some of difficulties were found at high temperatures susceptibility (Rutting), and low storage stability (compatibility). Therefore, the aim of this study is to resolve these defects (rutting and compatibility) by formulating SBR/ waste nanoceramic powder (WNCP) nanocomposites. Three nanocomposites formulations are fabricated from SBR/WNCP with mass ratios (90:10), (80:20), and (70:30) respectively. The prepared nanocomposites are assessed by XRF, XRD, and DLS. Asphalt binder is modified by 5wt% from each fabricated nanocomposite. Physical tests of modified asphalt binder including softening point, penetration, and penetration index are measured. The high temperature performance; rutting factor (G*/sindelta) is studied with DSR before and after exposure to short term aging. The compatibility of modified binder was studied by conducting storage stability test. Results confirmed that fabrication of SBR/WNCP nanocomposite enhance the compatibility, storage stability, and stiffness of blended binder. Also, DSR results approved that the rutting resistance of binder is enhanced.

show abstract

“…Increased elasticity, higher adhesion and cohesion qualities of the binders, and a lower rate of oxidation are all benefits of using SBR in mixes (Roque, Birgisson, Tia, Kim & Cui, 2004), this revealed why SBR has been widely used as an important asphalt modifier. Many studies show the addition of polymer (SBR) considered one of the asphalt improvement solutions techniques has been used in several countries (Sadhu & Bhowmick, 2004;Chakraborty et al, 2010;Zhang & Yu, 2010;Ameri, Vamegh, Rooholamini & Haddadi, 2018). These researchers discovered that SBR modified asphalt mixtures could produce exceptional pavement performance, including anti-rutting, anti-cracking, and moisture resistance, which was even better than SBS modified asphalt mixtures (Ren et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the properties of modified local asphalt binder by using styrene butadiene rubber (SBR) or low-density polyethylene (LDPE)

Mustafa

Hameed

Dulaimi

2022

srees

View full text Add to dashboard Cite

The influence of styrene butadiene rubber (SBR) or low-density polyethylene (LDPE) polymers on the characteristics of local asphalt binder was analyzed to characterize the rheological properties. The results indicated that the SBR or LDPE increased the softening point. The softening point was enhanced by around 35% when 9% of SBR was used in comparison to the unmodified asphalt, while there was a 15% increment when LDPE was used. The results also indicated that the SBR or LDPE decreased the penetration rate. The penetration decreases by around 36% when 9% of SBR is used compared to the neat asphalt, while a significant increment was 89% when 9% of LDPE is used. Additionally, when 9% SBR was employed, the ductility of the asphalt binder rose by roughly 73%, but 64% less ductility was seen when 9% LDPE was utilized. Finally, the addition of the additive has improved the penetration index, thus reducing the temperature sensitivity. Due to said above, SBR and LDPE are practical and promising modifiers that will be useful in enhancing the performance of the asphalt binder straightforwardly and efficiently.

show abstract

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

Cited by 27 publications

References 24 publications

Carbon Nanotubes (CNTs) in Asphalt Binder: Homogeneous Dispersion and Performance Enhancement

Carbon Nanotubes (CNTs) in Asphalt Binder: Homogeneous Dispersion and Performance Enhancement

Effect of SBR/Waste Ceramic Powder Nanocomposite on High Temperature Performance of Asphalt Binder

Evaluation of the properties of modified local asphalt binder by using styrene butadiene rubber (SBR) or low-density polyethylene (LDPE)

Contact Info

Product

Resources

About