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.