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Biofuel Co-products Uses for Pavement Geo-materials Stabilization

Halil CeylanKasthurirangan GopalakrishnanSunghwan Kim

出版	Institute for Transportation, Iowa State University, 2010
URL	http://books.google.com.hk/books?id=9eiNWdXddnoC&hl=&source=gbs_api

註釋The production and use of biofuels has increased in the present context of sustainable development. Biofuel production from plant biomass produces not only biofuel or ethanol but also co-products containing lignin, modified lignin, and lignin derivatives. This research investigated the utilization of lignin-containing biofuel co-products (BCPs) in pavement soil stabilization as a new application area. Laboratory tests were conducted to evaluate the performance and the moisture susceptibility of two types of BCP-treated soil samples compared to the performance of untreated and traditional stabilizer-treated (fly ash) soil samples. The two types of BCPs investigated were (1) a liquid type with higher lignin content (co-product A) and (b) a powder type with lower lignin content (co-product B). Various additive combinations (co-product A and fly ash, co-products A and B, etc.) were also evaluated as alternatives to stand-alone co-products.