papworths glossary of terms. visual assessment use grinding core cuts to assess corrosion need a...
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Papworths Glossary Of Terms
Visual Assessment
Use grinding core cuts to assess corrosionNeed a standard to define corrosion degreeCorrelate with potentials
RebarClassification
40x
Client:
Date: Time:
Inspector:
Scale:
Figure
-320
10%
50%
90%
40
400.2
Location Plan:
Cover meter = 40mm
Taped cover = 40mm
Sample No 2 - Grinding core cut (GCC)
GCC with 40mm taped cover
Sample No 2S2
Sample 2 = 100mm diamond core100S2
S2
Electrical potential (mv CuSO4 ref.)
Corrosion risk
90% (>-200mv)
50% (<-200mv)
90% (<-350mv)Drummy/Delamination
Spall
Spall & remainder is drummy
Patch repair
Rust stain
Leaching (Light, Moderate, Heavy)
Crack – Hairline (<0.1mm), Normal (<0.3mm),Moderate (<1mm), Wide (<3mm), Cavernous (>3mm)
Honeycombing
0.2mm wide crack
Crack with light leaching
Cracked & drummy
Crazing
Cold Joint
Panel Joint
Construction Joint
Exposed Rebar – Exposure class A
R
V
WP
AP
S
Rebound hammer test
Ultrasonic pulse velocity test
Insitu water permeability
Insitu air permeability
ISAT test
A
4 probe Wenner resistivity =8000ohm cm…
.8000
S Popout – (Small, Medium, Large)
L
TestsCracks
Defects
Samples
L
Surface etching (Light, Moderate, Heavy)L
Reinforcement
Spall, rebar exposed
Spall, rebar exposed, 40mm cover40Line of buried reinforcement, cover=40mm40xLine of buried reinforcement, cover=40mm, bar=20mm40x20
Structure:
Location:
Consequence: 1 2 3 4 5 Likelihood: 1 2 3 4 5
Testing:
Design Notes:
Cover: Rebar V: H:
Strength Grade:
Note features on drwg.