Published March 31, 1982 | Version v1
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Effect of gamma irradiation on the strength of Climax stock quartz monzonite

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Description

A laboratory study was made of the effects of a massive dose of γ irradiation upon the mechanical properties of Climax stock quartz monzonite. Twenty-nine cylinders of rocks were tested using the Brazilian method and 26 strain gauged cylinders were tested to failure in uniaxial compression. One-half the cylinders in each group were subjected to a γ ray dose of 13.2 MGy (1.32 x 109 rads), or six times the maximum five-year dose to rock at the Spent Fuel Test-Climax, Nevada Test Site. The irradiation treatment lowered the ultimate compressional strength and lowered Young's modulus under uniaxial loads greater than 20 MPa. The treatment did not measurable affect the elastic behavior of the rock in compression, nor did it affect the Brazilian tensile strength. These trends suggest that the γ irradiation lowered the threshold stress at which microfractures begin to form. The irradiation has apparently not directly induced microfracturing in the rock, so a direct degrading effect on thermal and fluid transport properties is not expected

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS, PC A03/MF A01; 1 as DE86012338.

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Additional details

Publishing Information

Imprint Pagination
27 p.
Report number
UCRL--87475

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17087380
Subject category
S36: MATERIALS SCIENCE; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
COMPRESSION STRENGTH; ELASTICITY; EXPERIMENTAL DATA; GAMMA RADIATION; MECHANICAL TESTS; PHYSICAL RADIATION EFFECTS; QUARTZ; YOUNG MODULUS
Descriptors DEC
DATA; ELECTROMAGNETIC RADIATION; INFORMATION; IONIZING RADIATIONS; MATERIALS TESTING; MECHANICAL PROPERTIES; MINERALS; NUMERICAL DATA; OXIDE MINERALS; RADIATION EFFECTS; RADIATIONS; TESTING

Optional Information

Notes
Portions of this document are illegible in microfiche products.