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A platform for research: civil engineering, architecture and urbanism
Physico-chemical and mechanical properties of asphalt binders blended with waste bio-shell powder
Bio-shell is a renewable bio-waste resource being used to develop sustainable and environmentally friendly pavement materials. In this study, bio-shell was mixed with asphalt to prepare bio-shell-modified asphalt. The modified asphalt was divided into four groups with 0%, 5%, 10% and 15% of waste bio-shells. The morphology of the bio-shell was investigated by scanning electron microscopy tests. Penetration, softening point, and ductility tests were performed to analyse the basic physical properties of bio-shell asphalt. Dynamic shear rheometer and bending beam rheometer were used to high and low-temperature rheological properties of the bio-shell-modified asphalt. Fourier transform infrared spectroscopy and nuclear magnetic resonance hydrogen spectroscopy were used to analyse the atomic distribution and relative content of bio-shell-modified asphalt and reveal the modification mechanism. Atomic force microscopy was employed to observe the nano-microscopic morphology of the bio-shell-modified asphalt, and to analyse the changes of the bee structures in the asphalt. The results showed that the high-temperature rheology of 15% bio-shell asphalt was the best. The rutting factors of the asphalt increased by 38%, 43%, 45%, 50%, 55% and 63% at temperatures of 40°C, 46°C, 52°C, 58°C, 64°C and 70°C, respectively, compared to the matrix asphalt.
Physico-chemical and mechanical properties of asphalt binders blended with waste bio-shell powder
Bio-shell is a renewable bio-waste resource being used to develop sustainable and environmentally friendly pavement materials. In this study, bio-shell was mixed with asphalt to prepare bio-shell-modified asphalt. The modified asphalt was divided into four groups with 0%, 5%, 10% and 15% of waste bio-shells. The morphology of the bio-shell was investigated by scanning electron microscopy tests. Penetration, softening point, and ductility tests were performed to analyse the basic physical properties of bio-shell asphalt. Dynamic shear rheometer and bending beam rheometer were used to high and low-temperature rheological properties of the bio-shell-modified asphalt. Fourier transform infrared spectroscopy and nuclear magnetic resonance hydrogen spectroscopy were used to analyse the atomic distribution and relative content of bio-shell-modified asphalt and reveal the modification mechanism. Atomic force microscopy was employed to observe the nano-microscopic morphology of the bio-shell-modified asphalt, and to analyse the changes of the bee structures in the asphalt. The results showed that the high-temperature rheology of 15% bio-shell asphalt was the best. The rutting factors of the asphalt increased by 38%, 43%, 45%, 50%, 55% and 63% at temperatures of 40°C, 46°C, 52°C, 58°C, 64°C and 70°C, respectively, compared to the matrix asphalt.
Physico-chemical and mechanical properties of asphalt binders blended with waste bio-shell powder
Guo, Yuchen (author) / Ji, Guanyu (author) / Wang, Xuancang (author) / Tian, Beisi (author) / Zhang, Yi (author)
2023-12-06
Article (Journal)
Electronic Resource
English
Properties of Modified Asphalt Binders Blended with Electronic Waste Powders
| British Library Online Contents | 2012
Properties of Modified Asphalt Binders Blended with Electronic Waste Powders
| Online Contents | 2012