SHRP-A-379 traducir

Record axial deformation, shear deformation, axial load, and shear load during
intervals shown in table 4 or at other appropriate intervals.
7.--The test takes about 70 to 80 minutes to complete from the time the specimen is placed in the
removed.
Suggested Data Collection for the Repeated Shear Test at a Field State of Stress
Collected During Cycles:
1 through 10 1,747 through 1,750
20 through 22 2,000 through 2,002
30 through 32 2,247 through 2,250
50 through 52 2,500 through 2,502
80 through 82 2,748 through 2,750
100 through 102 2,997 through 3,000
200 through 202 3,200 through 3,202
300 through 302 3,400 through 3,402
400 through 402 3,600 through 3,602
500 through 502 3,800 through 3,802
600 through 602 3,997 through 4,000
800 through 802 4,200 through 4,202
1,000 through 1,002 4,500 through 4,502
1,247 through 1,250 4,998 through 5,000
1,500 through 1,502
duration of each cycle is 0.7 second.
collection rate of 60 data points per second is satisfactory.
Volumetric Test
Place the specimen (prepared in accordance with sections 6.1 and 6.2) between
bottom platens.
Surround the specimen with a membrane,
open at both ends and free of any defects.
150 mm in diameter and 0.6 mm
Fix the membrane tightly to the platens with rubber O-rings.
Mount a radial LVDT around the circumference of the specimen to measure its
deformation. Then mount LVDTs on both sides of the specimen to measure axial
from platen to platen.
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