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03963cam a2200445Ia 4500 001 7EE1582E62A311DFAF3CE96BC41A358D 003 SILO 005 20100624010131 008 100511s2010 iaua bt 000 0 eng d 035 $a (OCoLC)613396729 040 $a UIG $c UIG $d SILO $d IOZ $d IWA $d SILO 043 $a n-us-ia 100 1 $a Gopalakrishnan, Kasthurirangan. 245 1 $a Biofuel co-products uses for pavement geo-materials stabilization / $c by Kasthurirangan Gopalakrishnan, Halil Ceylan, and Sunghwan Kim. 260 $a Ames, IA : $b Institute for Transportation, Iowa State University, $c [2010] 300 $a xii, 40 p. : $b ill. (some col.) ; $c 28 cm. 513 $a Final report. 536 $a Sponsored by the Iowa Highway Research Board and the Iowa Dept. of Transportation $f InTrans project 08-316 $f InTrans project 08-316 500 $a "April 2010." 500 $a Summary ([4] p.) tipped in with title: Biofuel co-products uses for pavement geo-materials stabilization : tech transfer summary. 530 $a Also available via the Internet. 520 3 $a 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. Test results indicate that BCPs are effective in stabilizing the Iowa Class 10 soil classified as CL or A-6(8) and have excellent resistance to moisture degradation. Strengths and moisture resistance in comparison to traditional additives (fly ash) could be obtained through the use of combined additives (co-product A + fly ash; co-product A + co-product B). Utilizing BCPs as a soil stabilizer appears to be one of the many viable answers to the profitability of the bio-based products and the bioenergy business. Future research is needed to evaluate the freeze-thaw durability and for resilient modulus characterization of BCP-modified layers for a variety of pavement subgrade and base soil types. In addition, the long-term performance of these BCPs should be evaluated under actual field conditions and traffic loadings. Innovative uses of BCP in pavement-related applications could not only provide additional revenue streams to improve the economics of biorefineries, but could also serve to establish green road infrastructures. 504 $a Includes bibliographical references (p. 37-40). $b 67 650 0 $a Soil stabilization $z Iowa. 650 0 $a Waste products as road materials $z Iowa. 650 0 $a Lignin $x Research. 700 1 $a Ceylan, Halil. 700 1 $a Kim, Sunghwan. 710 1 $a Iowa. $b Highway Research Board. 710 1 $a Iowa. $b Dept. of Transportation. 710 2 $a Iowa State University. $b Institute for Transportation. 740 0 $a Biofuel co-products uses for pavement geo-materials stabilization : tech transfer summary. 856 41 $u http://www.intrans.iastate.edu/reports/Ceylan_Bio_report.pdf 941 $a 4 952 $l IAOX771 $d 20240710102104.0 952 $l OVUX522 $d 20180112065630.0 952 $l USUX851 $d 20160825061732.0 952 $l Z7OX851 $d 20100519085655.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=7EE1582E62A311DFAF3CE96BC41A358D 994 $a 02 $b IWAInitiate Another SILO Locator Search