Using Lignin to Stabilize Soil and Build Better Roads


Iowa State engineers are exploring the use of lignin, a co-product in the production of biofuel from plant fibers, could be a good soil stabilizing agent.

While stabilizing soils for road construction is standard practice around the Midwest, there are limits to its effectiveness. Ceylan said costs can be high and current practices only work with certain soil types and site conditions. So civil engineers are always looking for better, cheaper and more efficient ways to get the job done.

The project has received a $93,775 grant from the Grow Iowa Values Fund, a state program that promotes economic development. The Iowa Highway Research Board, Grain Processing Corp. of Muscatine and Iowa State’s Office of Biorenewables Programs are also supporting the project.


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