00753996

Component

https://doi.org/10.3141/1614-07

http://scholar.google.com...lett&publication_year=1998

Five laboratories have been involved in a series of comparative studies of the repeated load triaxial testing of soils and unbound granular materials as found in the lower layers of pavement construction. These comparisons with soil, granular materials, and an artificial specimen are outlined. The performance of the varied types of instruments that measure both axial and radial deformations is assessed, with particular attention to the fixing arrangements, instrument limitations, and weight. On the basis of the information presented, recommendations are given about the most appropriate types of instrument. No universal type is recommended, and it is clear that some variation in performance is an inevitable consequence of the measurement process.

This paper appears in Transportation Research Record No. 1614, In Situ Testing Devices and Strain Measurements.

English

p. 52-60

1998

Transportation Research Record

0309064597

Figures (8) ; References (13) ; Tables (3)

Accelerated tests; Alternatives analysis; Deformation; Granular materials; Measuring instruments; Performance; Repeated loads; Soils; Testing equipment; Triaxial shear tests; Variables

Comparative analysis; Triaxial tests

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Oct 1 1998 12:00AM

• AXIAL-TORSIONAL TESTING SYSTEM FOR CLAY WITH LOCAL STRAIN MEASUREMENT
• CALCULATION OF SETTLEMENTS OF SHALLOW FOUNDATIONS ON SAND AND SILT BASED ON IN SITU TEST RESULTS
• CALIBRATION OF A MINIATURE CONE PENETROMETER FOR HIGHWAY APPLICATIONS
• DESIGN AND ABSOLUTE CALIBRATION OF AN EMBEDDED, WIDEBAND VELOCITY SENSOR
• EVALUATION OF STRAIN VARIATION WITHIN A TRIAXIAL SPECIMEN DUE TO END EFFECTS
• GRANULAR MATERIAL RADIAL DEFORMATION MEASUREMENTS WITH A CIRCUMFERENTIAL EXTENSOMETER IN REPEATED LOAD TRIAXIAL TESTING
• INSTRUMENTATION AND CALIBRATION OF GEOTEXTILES USED IN CENTRIFUGE MODELING OF SLOPES