Bell Canyon Test (BCT) PDF Download
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Author:
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Category :
Languages : en
Pages :
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Book Description
The Borehole Plugging (BHP) materials development program which has been underway at WES under Sandia sponsorship for about five years is reviewed. Development testing data for candidate grout mixtures for the BCT plug are presented. Field batching, mixing, and placement operations are discussed. Data from field samples molded during the two plug placements include strength, expansion, compressional wave velocity, dynamic modulus, density, and porosity. Microstructure and composition are compared for grout samples at ages of a few weeks and one year.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The Borehole Plugging (BHP) materials development program which has been underway at WES under Sandia sponsorship for about five years is reviewed. Development testing data for candidate grout mixtures for the BCT plug are presented. Field batching, mixing, and placement operations are discussed. Data from field samples molded during the two plug placements include strength, expansion, compressional wave velocity, dynamic modulus, density, and porosity. Microstructure and composition are compared for grout samples at ages of a few weeks and one year.
Author: A. D. Buck
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Book Description
Bell Canyon Test (BCT) 1-FF grout was developed as a candidate material for use in repository sealing applications and was actually used in two field tests in New Mexico. This grout and modifications of it were made in the laboratory and tested or examined for workability, compressive strength, restrained expansion, permeability, phase composition, and microstructure. Most of these were done to an age of 1 year. Compressive strength and expansion data were determined beyond this age (960 days). Modifications included use of three other cements, two other fly ashes, a silica fume, different water contents, and different amounts of expansive additive (plaster). Each cement and mineral admixture was characterized by conventional chemical and physical tests as well as by X-ray diffraction examination. In general, the results indicated that the modifications to the basic BCT-1-FF grout produced other grouts that were as good as it. An exception to this was the grout mixture (M-8-C) made with shrinkage compensating expansive cement; it has an excessive flow time (>20 sec). Another grout mixture (M-9-C) also had excessive flow time and lower strength. It was thought that these problems could be solved with more modification to these two mixtures. (Author).
Author: Jay E. Rhoderick
Publisher:
ISBN:
Category : Grout (Mortar).
Languages : en
Pages : 28
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Author: Charles W. Gulick
Publisher:
ISBN:
Category : Grout (Mortar)
Languages : en
Pages : 77
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Book Description
Author: Charles W. Gulick
Publisher:
ISBN:
Category : Grout (Mortar)
Languages : en
Pages : 77
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Author: Alan D. Buck
Publisher:
ISBN:
Category : Grout (Mortar)
Languages : en
Pages : 21
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Author: Jerry P. Burkes
Publisher:
ISBN:
Category : Grout (Mortar)
Languages : en
Pages : 41
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Book Description
The Bell Canyon field test involving the placement of two grout plugs took place 26 September 1979 (Plug 1) and 14 February 1980 (Plug 2), respectively. Samples cast in the field were brought to WES and cured in hole AEC-7 (lease) brine. Samples were examined periodically through 1 year and then at 2- and 3- years age to obtain petrographic, physical, and some chemical data. This report deals solely with the petrographic data as the physical data have been presented in other reports. Cracking of specimens was observed; this was believed to be due largely to moisture and temperature changes in the laboratory. The grout from the two placements at ages up to 3 years showed no significant overall deterioration or alteration from the original grout. The Plug 1 and Plug 2 samples will continue to be examined by XRD and SEM at 1-year intervals for an indefinite time.
Author: Jay E. Rhoderick
Publisher:
ISBN:
Category : Borehole plugging
Languages : en
Pages : 24
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Book Description
Portland cement grout identified as BCT-1-FF (Bell Canyon Test 1-FF) was used in borehole plugging experiments in the Bell Canyon Tests in Hole AEC-7 at the Waste Isolation Pilot Plant site in New Mexico during September 1979 and February 1980. This grout was made with fresh water. A study of this grout was begun in August 1979 in the laboratory to evaluate the possible effects of temperature, pressure, and storage in fresh water or simulated groundwater (brine) on its phase composition and compressive strength at early ages. Phase composition was determined by X-ray diffraction. Temperatures ranged up to about 150 F and included elevation at a few hours age after mixing; pressure was as high as 1500 psi; specimens were stored in simulated groundwater (brine) or in fresh water. Data from 1 to 90 days showed: Higher temperature accelerated early strength gain. These differences essentially vanished by 90 days age. Hydration products as identified by X-ray diffraction were normal; this indicated that a temperature range of 78 to 153 F was not significant. Pressure did not affect composition. Storage in simulated groundwater (brine) or fresh water had no detectable effect. Since the BCT-1-FF grout mixture contained added sulfate, it formed more ettringite as judged by X-ray diffraction than comparable portland cement mixtures without added sulfate. (Author).
Author: Charles L. Christensen
Publisher:
ISBN:
Category : Boring
Languages : en
Pages : 53
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Author:
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ISBN:
Category : Radioactive waste disposal
Languages : en
Pages : 88
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