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|Title:||Borehole Plugging Program (Waste Disposal). Report 2, Petrographic examination of several four-year-old laboratory developed grout mixtures|
|Authors:||Structures Laboratory (U.S.)|
Sandia National Laboratories
Battelle Memorial Institute. Office of Buclear Waste Isolation.
Rhoderick, Jay E.
Buck, Alan D.
Nuclear waste disposal
Scanning electron microscopy
|Publisher:||Concrete Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; C-78-1 rept.2.|
Abstract: Specimens from five grout mixtures had been stored in either simulated brine groundwater at 73°F or in laboratory air for approximately 4 years. The variables included type of cement, use of a natural pozzolan, and use of salt in two mixtures. Available specimens were inspected; a specimen stored wet and one stored dry from each grout mixture were examined by X-ray diffraction for phase composition and by scanning electron microscopy to study microstructure. The results showed that: a. Cracking of specimens was common; it was believed to be due mainly to temperature change and/or moisture change effects. b. The mixture variables were generally not recognizable. c. The phase composition and microstructure of the five grout mixtures were considered normal.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Documents|