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 The ease of being able to work the concrete
into different parts of the form work.
 The various tests for calculation of
workability are
 Used to measure
the slump directly
in one minute
after tester is
inserted.
 This having 1.9 cm
ex.dia and 1.6 cm
intr.dia and
,length 25 cm.
 The cft has been
developed at the road
research labotary u.k.
 It is one the most
efficient test for
measuring
workability.
 CF = wt. of partially
comp. Concrete/wt.
of fully compacted
concrete.
 In this test , a
standard mass of
concrete is
measured and this
flow is related to
workability.
 Flow percent =
Spread dia in cm-
25/25
 The value can range
from 0 to 150
percent.
 This has not been
covered by IS.
 This test is
performed on the
site.
 Vee-bee test is a
good laboratory test
.
 We are going to
measure the
workability
indirectly.
 This method is very
suitable whose
slump value cannot
be measured by
slump test.
Slump cone test

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Slump cone test

  • 1.  The ease of being able to work the concrete into different parts of the form work.  The various tests for calculation of workability are
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.  Used to measure the slump directly in one minute after tester is inserted.  This having 1.9 cm ex.dia and 1.6 cm intr.dia and ,length 25 cm.
  • 8.
  • 9.
  • 10.  The cft has been developed at the road research labotary u.k.  It is one the most efficient test for measuring workability.  CF = wt. of partially comp. Concrete/wt. of fully compacted concrete.
  • 11.  In this test , a standard mass of concrete is measured and this flow is related to workability.  Flow percent = Spread dia in cm- 25/25  The value can range from 0 to 150 percent.
  • 12.
  • 13.  This has not been covered by IS.  This test is performed on the site.
  • 14.
  • 15.  Vee-bee test is a good laboratory test .  We are going to measure the workability indirectly.  This method is very suitable whose slump value cannot be measured by slump test.
  翻译: