Enzyme Enhanced Stabilization of Soil and Fly Ashby Lutful I. Khan, Cleveland State Univ, Cleveland, United States,
Mohammad Sarker, Cleveland State Univ, Cleveland, United States,
Document Type: Proceeding Paper
Part of: Fly Ash for Soil Improvement
The purpose of this research was to determine if enzymes could be utilized to increased the strength and stability of soil mixed with fly ash. Samples were prepared with and without the enzyme by varying the percentages of fly ash in the soil-fly ash mixture and subjected to unconfined compression test, freeze thaw test and compaction test. The results indicted that addition of very small amount of enzyme (about 5%) increased the unconfined compression strength significantly. Enzyme stabilized soil-fly ash mixture was found to be as stable as the lime stabilized soil-fly ash mixture under freeze-thaw cycles. No change in the compaction characteristics of soil-fly ash mixture was observed because of the enzyme.
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