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Papworths Glossary Of Terms

Papworths Glossary Of Terms. Visual Assessment. Use grinding core cuts to assess corrosion Need a standard to define corrosion degree Correlate with potentials. Rebar Classification. S2. 40 . S2. 100. 8000. …. Location Plan:. Client: Date: Time: Inspector: Scale:.

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Papworths Glossary Of Terms

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  1. Papworths Glossary Of Terms

  2. Visual Assessment • Use grinding core cuts to assess corrosion • Need a standard to define corrosion degree • Correlate with potentials

  3. RebarClassification

  4. S2 40 S2 100 8000 …. Location Plan: Client: Date: Time: Inspector: Scale: Design Notes: Cover: Rebar  V: H: Strength Grade: Note features on drwg. Structure: Location: Consequence: 1 2 3 4 5 Likelihood: 1 2 3 4 5 Testing: Figure Samples Cracks Tests R Crack – Hairline (<0.1mm), Normal (<0.3mm), Moderate (<1mm), Wide (<3mm), Cavernous (>3mm) Rebound hammer test S2 Sample No 2 V Sample No 2 - Grinding core cut (GCC) Ultrasonic pulse velocity test 0.2mm wide crack 0.2 WP GCC with 40mm taped cover Crack with light leaching Insitu water permeability L Cracked & drummy Sample 2 = 100mm diamond core AP Insitu air permeability Crazing S ISAT test Cold Joint 4 probe Wenner resistivity =8000ohm cm Panel Joint Construction Joint Electrical potential (mv CuSO4 ref.) -320  Corrosion risk 90% (>-200mv) 50% (<-200mv) 90% (<-350mv) Defects Reinforcement 10% 50% Drummy/Delamination Exposed Rebar – Exposure class A A 90% Spall Spall, rebar exposed Spall & remainder is drummy 40 40x Spall, rebar exposed, 40mm cover Cover meter = 40mm Patch repair 40x Line of buried reinforcement, cover=40mm 40 Taped cover = 40mm Rust stain 40x20 Line of buried reinforcement, cover=40mm, bar=20mm Leaching (Light, Moderate, Heavy) L Honeycombing Surface etching (Light, Moderate, Heavy) L S Popout – (Small, Medium, Large)

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