Types of Asphalt Mixtures Quiz
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Questions and Answers

What should the Contractor’s Materials Engineer do if there are problems regarding the quality of construction materials?

  • Report to the Contractor
  • Report to the Contractor’s Project Engineer
  • Do nothing
  • Report directly to the DPWH Materials Engineer (correct)
  • If reinforced concrete pipes are not cast in the field, how many pipes need to be subjected to the Crushing Strength test?

  • 100 pcs.
  • 50 pcs.
  • 75 pcs.
  • 70 pcs. (correct)
  • How many concrete cylinder samples are required for 3,500 pcs. of reinforced concrete pipes?

  • 14 sets of 3 (correct)
  • 75 sets of 3
  • 140 sets of 3
  • None of the above
  • Which bitumen is obtained from the distillation of coal or wood?

    <p>Tar</p> Signup and view all the answers

    How can the viscosity of Medium-Curing Cutback Asphalt be reduced?

    <p>Mixing it with kerosene</p> Signup and view all the answers

    What establishes the exact percentage of aggregates and asphalt content in a bituminous mix?

    <p>Job mix formula</p> Signup and view all the answers

    What action should be taken if construction materials fail the initial test?

    <p>Reject materials</p> Signup and view all the answers

    What is the purpose of the Immersion – Compression test in construction material testing?

    <p>Solubility</p> Signup and view all the answers

    Why is the use of sea water not allowed in reinforced concrete?

    <p>B and C</p> Signup and view all the answers

    What happens when soil is properly compacted at MDD (Maximum Dry Density)?

    <p>All of the above</p> Signup and view all the answers

    At what temperature must asphalt construction be completed before compaction cooling?

    <p>185°F (71°C)</p> Signup and view all the answers

    Which category of contractor is required by DPWH to own minimum material testing equipment for prequalification purposes?

    <p>Medium</p> Signup and view all the answers

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