• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
Field Identification of Bituminous Materials
Figure 8-23.Pour test for asphalt and cutbacks.

Equipment Operator Advanced - Advanced construction equipmet operators manual
Page Navigation
  170    171    172    173    174  175  176    177    178    179    180  
Figure 8-21.—Field identification of unknown bituminous materials. Field identification of bituminous materials    is    summarized    in    figure    8-21. Solubility Test The solubility test consists of taking    a    small    amount    of    the    unknown bituminous    material,    enough    to    cover    the head   of   a   nail   if   a   solid,   or   few   drops   of a liquid material and attempting to dissolve    the    material    by    stirring    it    in    a petroleum distillate; gasoline, kerosene, diesel    fuel,    and    so    forth.    If    the    material is    an    asphalt,    it    will    mix    uniformly    with the    distillate.    Tars,    however,    will    form    a stringy undissolved mass. Emulsions, in addition to other distinguishing tests, may    also    be    identified    in    the    solubility test since they will form undissolved balls    or    beads    of    the    emulsion    at    the bottom of the container of petroleum distillate. The solubility test provides a positive     method     of     identification     (fig.     8- 22). 8-24







Western Governors University

Privacy Statement
Press Release
Contact

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