Aging mechanisms for concrete components of High-Level Waste storage tanks

Conference · Mon May 01 04:00:00 UTC 1995

OSTI ID:69341

Kassir, M; Bandyopadhyay, K; Bush, S; Mather, B; Shewmon, P; Streicher, M; Thompson, B; van Rooyen, D; Weeks, J

The age-related degradation mechanisms which affect the concrete and the reinforcing steel in the high-level waste (HLW) storage tanks art evaluated with respect to their potential significance to the continued performance of the concrete, and am classified into non-significant and potentially significant. The identified potentially significant degradation mechanisms include the effects of elevated temperature, freezing and thawing, leaching of calcium hydroxide, aggressive chemical attack, and corrosion of the reinforcing steel. To the extent that available knowledge permits, these mechanisms are generically evaluated and quantified so that site-specific plans may be developed to verify whether significant degradation has occurred in the concrete, and, if so, to formulate mitigating measures to avoid further deterioration and possibly repair the degradation or pursue other management options.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 69341
• Report Number(s): BNL--61651; CONF-950740--34; ON: DE95011403
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
CARBON STEELS
CONCRETES
CORROSION
DECOMPOSITION
HIGH-LEVEL RADIOACTIVE WASTES
LEACHING
TANKS
TEMPERATURE DEPENDENCE
UNDERGROUND STORAGE