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Concrete Paving Quality Control Procedures: Set Time Mobile App

Determining the set time of a concrete mixture during the mixture design and mixture verification phases enables comparison of the mixture’s early strength development characteristics. Such a comparison may reveal changes in the mixture’s behavior and properties as compared to what was observed during the mixture design stage. Early identification of strength development trends may be helpful in preventing uncontrolled cracking in the pavement. The Concrete Paving Quality Control Procedures: Set Time mobile app covers: Purpose, Principle, Test Procedure, Test Method, Output and Construction Issues. See how you can take your business Green.

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

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Take a peek inside the Concrete Paving Quality Control Procedures: Set Time Mobile App

Included Features

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Included Fields

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    Determining the set time of a concrete mixture during the mixture design and mixture verification...

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    The hydration process for a given concrete mixture is complex and dependent on the interaction of...

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    ASTM C 403, the Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resi...

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    Container for mortar specimen(s).

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    Penetration needles with the following bearing areas (in2):1.

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    Penetrometer.

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    Tamping rod.

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    Pipet.

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    Thermometer.

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    Vibratory mortar sampler (suggested for field sampling).

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    Prepare a lab mortar sample or obtain a mortar sample from a field-mixed batch.

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    Record the time at which cementitious materials first come into contact with water

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    Record the temperature of the fresh mortar sample, place in a container, consolidate, and level t...

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    Maintain the ambient test conditions at 68ºF to 77ºF (lab and field tests).

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    Begin penetration testing approximately 3 to 4 hours after initial contact between the cement and...

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    For each penetration, record the ambient temperature, mortar temperature, force, and bearing area.

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    Calculate the penetration resistance by dividing the force by the penetration area.

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    Plot the results.

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    Plot the set time for mixture design and mixture verification tests together.

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    Delays in normal setting may lead to uncontrolled cracking as stresses build up in the pavement b...

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