Structural Rehabilitation and Strengthening of RC Structures: Building Assessment
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Questions and Answers

What is the purpose of the bar locator in the second survey of structural failure assessment?

  • To measure the cover thickness of reinforcement bars (correct)
  • To identify the symptoms of structural distress
  • To apply diagnostic inspection and testing
  • To assess the knowledge on structural distress analysis
  • What is the primary focus of non-destructive evaluation in the process of building assessment?

  • Assess the structural condition
  • Apply diagnostic inspection and testing (correct)
  • Identify the symptoms of structural distress
  • Measure the cover thickness of reinforcement bars
  • In structural failure assessment, what does the Ground Penetrating Radar (GPR) use to penetrate concrete?

  • Electromagnetic waves
  • Dielectric constant
  • Electrical conductivity of media
  • All of the above (correct)
  • What is the main purpose of the Remedial Measures in the building assessment process?

    <p>Implement strengthening measures</p> Signup and view all the answers

    What does the process of First Survey involve in structural failure assessment?

    <p>Observe any surface discontinuities</p> Signup and view all the answers

    Which method is suitable for studying aggregates arrangement, presence of voids, internal cracks, segregation, honey-combed, and reinforcement bar condition and position?

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

    Which method is relatively 'destructive' and represents the most reliable method of establishing in-situ concrete strength?

    <p>Core drilling</p> Signup and view all the answers

    What does the rebound hammer primarily test?

    <p>Surface hardness</p> Signup and view all the answers

    Which method involves X-rays or gamma-rays penetrating through concrete samples to collect images of changes in thickness or density?

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

    Which method involves measuring the speed of sound and can be used to detect voids, honeycombs, measure crack depth, and estimate strength?

    <p>Ultrasonic method</p> Signup and view all the answers

    What is the purpose of the second survey in structural failure assessment?

    <p>To measure cover thickness and locate reinforcement bar using ground penetrating radar</p> Signup and view all the answers

    What is the primary focus of non-destructive evaluation in the process of building assessment?

    <p>Using diagnostic inspection and testing to assess structural condition</p> Signup and view all the answers

    Which method involves X-rays or gamma-rays penetrating through concrete samples to collect images of changes in thickness or density?

    <p>Neutralization, carbonation, and pH tests</p> Signup and view all the answers

    What does the rebound hammer primarily test?

    <p>Concrete strength</p> Signup and view all the answers

    Which method is relatively 'destructive' and represents the most reliable method of establishing in-situ concrete strength?

    <p>Core testing</p> Signup and view all the answers

    What is the main purpose of the Remedial Measures in the building assessment process?

    <p>Repair or rehabilitation of non-structural components</p> Signup and view all the answers

    Which method involves assessing the potential strength, in-situ cube strength, load factor, and degree of deterioration due to loads or environmental causes?

    <p>Core drilling</p> Signup and view all the answers

    What is the purpose of the Windsor Probe Penetration Test?

    <p>To measure compressive strength by calibration charts</p> Signup and view all the answers

    Which method primarily involves estimating concrete strength with an estimation error of approximately 30%?

    <p>Rebound hammer</p> Signup and view all the answers

    In structural failure assessment, which method can be used to monitor mixing materials, concrete uniformity, detect void or honeycombs, and measure crack depth?

    <p>Ultrasonic method</p> Signup and view all the answers

    What does the rebound hammer primarily test?

    <p>Surface hardness</p> Signup and view all the answers

    Which method involves X-rays or gamma-rays penetrating through concrete samples to collect images of changes in thickness or density?

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

    What is the primary focus of non-destructive evaluation methods in structural failure assessment?

    <p>Detecting internal structures</p> Signup and view all the answers

    What is the main purpose of the Remedial Measures in the building assessment process?

    <p>To repair structural damage</p> Signup and view all the answers

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