Cheng Cheng1,2,*, Weiwei Sun2, Bo Hu3, Guixiang Tao2, Chao Peng2, Yanjuan Tian4, Shujuan Wu4,5
Journal of Renewable Materials, Vol.8, No.10, pp. 1243-1255, 2020, DOI:10.32604/jrm.2020.012054
Abstract The use of lignin, which is a by-product of the pulp and paper industry, in the
development of asphalt binders would contribute to waste reduction, providing environmental, economic, and social benefits. In this study, samples of lignin-modified asphalt
binder samples with different content of lignin (3%, 6%, 9%, 12%, and 15%) and
unmodified asphalt (control) were tested using Fourier transform infrared spectroscopy (FTIR), dynamic shear rheometer (DSR), and thermogravimetry. The mechanism and effectiveness of lignin in improving the thermal stability of asphalt at
high temperatures were analyzed. The FTIR analysis shows that no new characteristic absorption peak is seen in… More >
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