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Evaluating the Freeze-Thaw Durability of Portland Cement-Stabilized-Solidified Heavy Metal Waste Using Acoustic Measurements
El-Korchi, T
Assistant professor, Worcester Polytechnic Institute, MA

Gress, D
Associate professor, University of New Hampshire, NH

Baldwin, K
Professor of environmental engineering, University of Cincinnati, OH

Bishop, P

Pages: 8    Published: Jan 1989

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Source: STP1033-EB

Abstract

The use of stress wave propagation to assess freeze-thaw resistance of portland cement solidified /stabilized waste is presented. The stress wave technique is sensitive to the internal structure of the specimens and would detect structural deterioration independent of weight loss or visual observations.

The freeze-thaw resistance of a cement-solidified cadmium waste and a control was evaluated. The control and cadmium wastes both showed poor freeze-thaw resistance. However, the addition of cadmium and seawater curing increased the resistance to more cycles of freezing and thawing. This is attributed to microstructural changes.

Keywords:
solidification/stabilization, heavy metal waste, hazardous waste, freeze-thaw resistance, acoustic testing, waste solidification, cement solidification

Paper ID: STP22878S
Committee/Subcommittee: D34.07
DOI: 10.1520/STP22878S
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