SPECIMEN SIZE EFFECTS IN CYCLIC LOADING TRIAXIAL TESTING

The research described in this report was carried out at the Road and Railroad Research Laboratory of Delft University of Technology in cooperation with the Road and Hydraulic Engineering Division (DWW) of the Dutch Public Works Department (Rijkswaterstaat). This laboratory has three cyclic loading triaxial test set-ups, viz. a small apparatus (specimen size 100 x 200 mm), a large apparatus (specimen size 400 x 800 mm), and a new apparatus of specimen size 150 x 300 mm. These will be referred to as the diameter 100, the diameter 400, and the diameter 150 apparatus respectively. To examine the performance of the diameter 150 apparatus Eastern Scheldt sand was tested for resilient properties, yielding a relationship between the resilient modulus and the sum of principal stresses. Comparison with this relationship assessed earlier with the other two apparatuses showed good agreement. To examine specimen size effects of the diameter 150 apparatus coarse grained materials with a 0/40 mm grading were tested under equal conditions of stress as applied in tests on these materials performed earlier in the diameter 400 apparatus. It appeared that the diameter 150 apparatus yields somewhat higher values for the resilient modulus than does the diameter 400 apparatus.

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  • Corporate Authors:

    Delft University of Technology

    Faculty of Civil Engineering, Stevin Laboratory, P.O. Box 5048
    2600 GA Delft,   Netherlands 
  • Authors:
    • JANSMA, HEW
  • Publication Date: 1988-5

Language

  • English

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Filing Info

  • Accession Number: 00667980
  • Record Type: Publication
  • Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
  • Files: ITRD
  • Created Date: Nov 2 1994 12:00AM