The effect of brine on the creep of WIPP salt in laboratory tests

Conference · Mon Jul 01 00:00:00 EDT 1991

OSTI ID:5247601

Brodsky, N S ^[1]; Munson, D E ^[2]

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1. RE/SPEC, Inc., Rapid City, SD (United States)
2. Sandia National Labs., Albuquerque, NM (United States)

WIPP salt specimens were tested under creep conditions using a constant stress difference of 15 MPa, a temperature of 20{degree}C, and confining pressures between 0.5 MPa and 15 MPa. After 8 days of testing, saturated brine was introduced around each specimen so that the strain-rate response to the change in moisture content could be measured. Brine always caused immediate changes in axial, radial, and volumetric strain rates. Strain rates returned to their pre-brine-introduction values only for tests conducted with confining pressures greater than 3.5 MPa. These data indicate that permanent moisture effects do no occur when the confining pressure is sufficient to suppress specimen dilation (microfracturing). 3 refs., 10 figs., 1 tab.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5247601
• Report Number(s): SAND-90-2367; CONF-910728-6; ON: DE91015644; TRN: 91-028922
• Resource Relation: Conference: 32. US symposium on rock mechanics, Norman, OK (United States), 10-12 Jul 1991
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
SALT DEPOSITS
CREEP
WIPP
BRINES
CORRELATIONS
DILATANCY
MOISTURE
PRESSURE EFFECTS
RADIOACTIVE WASTES
STRAIN RATE
UNDERGROUND DISPOSAL
FUNCTIONAL MODELS
GEOLOGIC DEPOSITS
MANAGEMENT
MATERIALS
MECHANICAL PROPERTIES
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
PILOT PLANTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
UNDERGROUND FACILITIES
US DOE
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage