Posted: August 17, 2011
OSU graduate student and French Fellow James P. Kirch successfully defended his Master of Science Thesis on August 16, 2011 titled, "Potential Use of Flue Gas Desulfurization Gypsum (FGD) in a Flowable Grout for Re-mining of Abandoned Coal Mines."
The laboratory testing completed by Mr. Kirch shows that flowable grouts made of FGD gypsum, fly ash, and cement can be suitable replacements for conventional grout materials. The use of coal combustion by-product flowable fills in grouting at abandoned and new coal mine sites have the potential of increasing the recovery of coal while beneficially utilizing by-products that are currently being landfilled.
Mr. Kirch obtained his undergraduate degree at Ohio State and was an undergraduate student researcher with the Coal Combustion Products Program. Through his undergraduate research experience he became interested in graduate level work. The Department of Civil and Environmental Engineering and Geodetic Science awarded him the prestigious French Fellowship for his master’s degree. He will graduate in August, 2011 and begin his professional work as Geotechnical Project Manager at ECS Limited in Washington, DC.