Instructional Methods Example 2
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Instructional Methods Example 2
- 1. Highway Repair: It’s A Group Effort How Does the Geotechnical Engineering Department Contribute?
- 2. Why Do We Use Non- Destructive Testing? Assessing the potential durability of the pavement Confirming or locating suspected deterioration of concrete Monitor long-term changes Determine the position, quality and condition of reinforcement Minimize the number of destructive tests
- 3. Types of Tests Non-Destructive Destructive A non-invasive Conventional Methods technique used to that enable the determine the integrity strength of the or properties of a concrete to be material measured by coring or cutting samples from Allows inspection concrete without interfering with a product or element final use
- 4. Types of Tests Non-Destructive Destructive Partially Destructive Concrete is tested to failure but the damage is localized and the member is not significantly weakened.
- 5. Name all the destructive and non-destructive testing methods you know
- 6. Examples of Tests Non-Destructive Destructive Falling Weight Coring Deflectometer LOOK IN NDT notes Radiography at home Ground Penetrating Radar Hammer Rebound Testing Covermeter Ultrasonic Pulse Velocity
- 7. Which of these tests do you think we use on Ministry Highways?
- 8. Tests Employed By The Ministry Visual Inspection FWD Ground Penetrating Radar Coring
- 9. What does the FWD measure
- 10. Typical FWD Testing Results
- 11. The Evaluation Matrix Load Transfer Low Medium High Efficiency (Crack < 13mm) (Crack 13-25mm) (Crack >25mm) Good JPCP - Consider Other JPCP – Full Depth All – Full Depth (>70%) Data to Determine Repair JRCP & Joints – Repair JRCP & Joints – Do Consider Other Data to Nothing Determine Repair Fair JPCP – Full Depth All – Full Depth Repair All – Full Depth (50-70%) JRCP & Joints – Consider Repair Other Data to Determine Repair Poor All – Full Depth Repair All – Full Depth Repair All – Full Depth (< 50%) Repair
- 12. Using the evaluation matrix and the example just handed out, which sections of highway would your team suggest need repair?
- 13. The Evaluation Matrix Load Transfer Low Medium High Efficiency (Crack < 13mm) (Crack 13-25mm) (Crack >25mm) Good JPCP - Consider Other JPCP – Full Depth All – Full Depth (>70%) Data to Determine Repair JRCP & Joints – Repair JRCP & Joints – Do Consider Other Data to Nothing Determine Repair Fair JPCP – Full Depth All – Full Depth Repair All – Full Depth (50-70%) JRCP & Joints – Consider Repair Other Data to Determine Repair Poor All – Full Depth Repair All – Full Depth Repair All – Full Depth (< 50%) Repair
- 14. What was actually repaired …