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LEACHING BOUNDARY IN CEMENT-BASED WASTE FORMS
Cheng, K. Y., P. Bishop, AND J. Isenbur. LEACHING BOUNDARY IN CEMENT-BASED WASTE FORMS. JOURNAL OF HAZARDOUS MATERIALS. Elsevier BV, AMSTERDAM, Netherlands, 30(3):285-295, (1992).
Cement-based fixation systems are among the most commonly employed stabilization/solidification techniques. These cement haste mixtures, however, are vulnerable to ardic leaching solutions. Leaching of cement-based waste forms in acetic acid solutions with different acidic strengths has been investigated in this work. The examination of the pH profile along the acid penetration route by various pH colorimetric indicators is reported. lear-cut leaching boundary of approximately 100 pm width was observed in every leached sample.
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Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY
TECHNOLOGY TRANSFER AND SUPPORT DIVISION