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

Abo-Shanab, Zeinab; A.Ahmed, M.; Elshafie, M.

doi:10.21608/ejchem.2021.62484.3340

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

Document Type : Original Article

Authors

¹ Petroleum apllications department, Egyptian petroleum Research Institute, Nasr city, EGYPT.

² Egyptian Petroleum Research Institute

³ Petroleum applications department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt.

10.21608/ejchem.2021.62484.3340

Abstract

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.

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