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Concrete Manual Tests: Testing Beams for Flexural Strength Mobile App

Nearly all State Departments of Transportation use third point beam breakers for flexural testing of concrete pavement. By using third point beam breakers, Mn/DOT can share its test results with other states and adapt the test results for use with AASHTO pavement design equations. The Concrete Manual Tests: Testing Beams for Flexural Strength deatails the procedure.

  • Lendlease
  • The Cooperative
  • PG&E
  • Red Bull
  • Mirvac

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Take a peek inside the Concrete Manual Tests: Testing Beams for Flexural Strength Mobile App

Included Features

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Included Fields

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    Nearly all State Departments of Transportation use third point beam breakers for flexural testing...

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    A.

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    Release all four case latches and lift the cover straight up.

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    Place the cover at the desired operating location and set the apparatus squarely on the top of t...

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    Remove any ties from the recorder or other components.

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    B.

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    Third point loading recording charts are used to determine the Modulus of Rupture for each specimen.

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    C.

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    Remove the plastic dust cover.

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    Close the control valve and pump the loading head approximately 6 mm (1/4 in.

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    Open the recorder door and install a recording chart: slip the edge of the selected chart under ...

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    a.

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    b.

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    c.

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    The pen arm assembly is fully inserted and clamped in the pen arm holder.

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    The pen point trough is at approximately right angles to the chart both vertically and horizontal...

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    The pen point just makes contact with the chart.

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    The length of the pen arm radius will trace a minute arc or a pen tracking arc on the chart.

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    With the beam on its side in relation to its position as molded, measure the width (b) and depth...

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    Use the key and wind the chart drive clockwise approximately one full turn.

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    With the beam on its side in relation to its position as molded (same position as used for takin...

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    The chain drive provides a quick method of adjusting the crossheads synchronized in height so th...

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    Close the Control Valve clockwise.

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    Carefully trace the spiral of the rotating chart and load the beam until failure.

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    Open the control valve (counterclockwise two turns only), to allow the piston to retract by grav...

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    Unclamp and remove the chart.

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    Fill in all pertinent test result data.

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    D.

  • ...and More!

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