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Title: Supporting hydration calculations for small- to large-scale seal tests in unsaturated tuff

Conference ·
OSTI ID:138296
;  [1];  [2]
  1. I. T. Corp., Albuquerque, NM (United States)
  2. Sandia National Labs., Albuquerque, NM (United States)

The design of cementitious repository seals requires an understanding of cement hydration effects in developing a tight interface zone between the rock and the seal. For this paper, a computer code, SHAFT.SEAL, is used to model early-age cement hydration effects and performs thermal and thermomechanical analysis of cementitious seals. The model is described, and then used to analyze for the effects of seal size, rock temperature and placement temperature. The model results assist in selecting the instrumentation necessary for progressive evaluation of seal components and seal-system tests. Also, the results identify strategies for seal emplacement for a series of repository seal tests for the Yucca Mountain Site Characterization Project (YMP).

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
138296
Report Number(s):
SAND-91-2177C; CONF-920430-36; ON: DE92006527; TRN: 92:004072
Resource Relation:
Conference: 3. international high level radioactive waste management (IHLRWM) conference, Las Vegas, NV (United States), 12-16 Apr 1992; Other Information: PBD: 6 Jan 1992
Country of Publication:
United States
Language:
English