Job Mix Concrete Volume

Posted in Concrete Engineering | Email This Post Email This Post

A trial batch of concrete can be tested to determine how much concrete is to be delivered by the job mix. To determine the volume obtained for the job, add the absolute volume V a of the four components—cements, gravel, sand, and water.

Find the V a for each component from

V a = W L / ( SG ) W u

where V a = absolute volume, ft 3 (m 3 )

W L = weight of material, lb (kg)

S G = specific gravity of the material

W u = density of water at atmospheric conditions (62.4 lb/ft 3 1000 kg /m 3 )

Then, job yield equals the sum of V a for cement, gravel, sand, and water.

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Comments
  • mvakil February 27, 2011 at 12:46 pm

    Can you give the details
    1 – volume of one bag of Cement (50 Kgs)
    2 – weight of one cubic meter aggregate
    3 – weight of one cubic meter sand

    • Froilan January 10, 2012 at 10:16 pm

      Makvil,

      I think 1 is the cement for one bag. 2 is the sand for 2 cubic feet. 3 is the gravel for 3 cubic feet. it refers to volume not weight.

      Thanks.

  • Froilan January 10, 2012 at 10:11 pm

    Does anytime assist me in providing a sample of Steel I Beam Investigation calculation. A sample would be nice..

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