Biofuel Co-Product Uses for Pavement Geo-Materials Stabilization: Extensive Lab Characterization and Field Demonstration

Project status

In progress

Start date: 05/09/13
End date: 12/31/17


Principal investigators:

Co-principal investigators:

About the research

The goal of this Phase II research is to gain a deeper understanding of how biofuel co-product (BCP)-soil stabilization works for different soil types and under a variety of conditions encountered in the field (before this technology can be put into practice successfully). This research also seeks to address the potential challenges and issues that could arise with the introduction of a new soil stabilizer in the field. The specific objectives are as follows:

  • Evaluate the effect of BCP addition on strength performance for a wide range of soils encountered in Iowa
  • Evaluate the durability (moisture sensitivity and freeze-thaw condition) of BCP treated soils
  • Evaluate the effect of BCP addition to soils on environment
  • Characterize the microstructure of BCP-soil mixture to better understand the mechanism of BCP soil stabilization
  • Establish a laboratory test protocol for mixture design and testing procedures for BCP-stabilized soil
  • Execute a field demonstration project using the developed BCP soil stabilization technology

Industry partners, Stine Seed Company of Iowa and PLET (Canada), have agreed to provide biomass-derived lignin samples in bulk for both the extensive lab characterization study as well as field demonstration.



  • Federal Highway Administration State Planning and Research Funding
  • Iowa Department of Transportation
  • Iowa Highway Research Board

Partner(s): Industry partners: Stine Seed Company of Iowa and PLET (Canada)