• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
BEARING TESTS - 14071_278
Preparation of Test Samples - 14071_280

Engineering Aid 2 - Intermediate Structural engineering guide book
Page Navigation
  256    257    258    259    260  261  262    263    264    265    266  
Figure 13-8.—Laboratory CBR test equipment and tools. specimens  are  prepared;  second,  a  penetration  test  is performed upon the prepared soil samples. Although one standardized procedure has been established for the penetration portion of the test, it is not possible to establish  one  procedure  for  the  preparation  of  test specimens   since   soil   conditions   and   construction methods  vary  widely.  The  soil  test  specimens  are prepared to duplicate the soil conditions existing (or expected  to  occur  later)  in  the  field.  Although penetration tests are most frequently performed on laboratory-compacted test specimens, they may also be performed  upon  undisturbed  soil  samples  or  in  the  field upon the soil in place. Detailed procedures for preparing the test samples and performing the test can be found in NAVFAC   MO-330. CBR Test Equipment and Tools Figure 13-8 illustrates the equipment and tools needed to perform the CBR test. The principal piece of equipment is the CBR loading press. It is used to force the   penetration   piston   into   the   compacted   CBR specimen. The complete loading-press assembly (fig. 13-9) includes a penetration piston, proving ring and proving-ring dial, penetration dial, and a mechanical (or Figure 13-9.—Assembled CBR loading press. 13-11







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.