Iowa State University Digital Repository @ Iowa State University Graduate heses and Dissertations Graduate College 2012 Using Soybean Oil Soapstock for Stabilizing Granular Shoulders Fangyu Guo Iowa State University Follow this and additional works at: htp://lib.dr.iastate.edu/etd Part of the Engineering Commons his hesis is brought to you for free and open access by the Graduate College at Digital Repository @ Iowa State University. It has been accepted for inclusion in Graduate heses and Dissertations by an authorized administrator of Digital Repository @ Iowa State University. For more information, please contact hinefuku@iastate.edu. Recommended Citation Guo, Fangyu, "Using Soybean Oil Soapstock for Stabilizing Granular Shoulders" (2012). Graduate heses and Dissertations. Paper 12902.