Estimation of Geochemical Behavior of Concretes Placed at Yucca Mountain
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- IT Corporation, Albuquerque, NM (United States)
The prediction of the chemical alteration of cementitious sealing materials and other cementitious components such as liners in the tuffaceous environment of Yucca Mountain is an essential element in understanding the longevity of these materials. This study uses a chemical equilibrium model to obtain information about the chemical reaction of ground water with concretes. Because concretes, cements, and grouts are metastable assemblages, it is expected that these materials will dissolve, cause secondary precipitations and react with the environment. These reactions will alter the porosity and hydraulic conductivity of the concretes. While the importance of these chemical and conductivity changes has not been completely assessed, this study provides insight into the importance of this chemical alteration.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 137997
- Report Number(s):
- SAND--90-2150C; CONF-910435--4; ON: DE90016868
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CHEMICAL REACTIONS
CONCRETES
GEOCHEMICAL SURVEYS
GEOCHEMISTRY
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HYDRAULIC CONDUCTIVITY
MATHEMATICAL MODELS
MINERALOGY
POROSITY
PORTLAND CEMENT
TEMPERATURE DEPENDENCE
TUFF
UNDERGROUND DISPOSAL
VARIATIONS
YUCCA MOUNTAIN
Yucca Mountain Project