polyurea coatings in secondary containment with national
TRANSCRIPT
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea Coatings in
Secondary Containment with
National Technical Approval
Jürgen Magner
Kiwa Polymer Institut
Flörsheim / Germany
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
high
rack tanks
organic coating
concrete
substrate
secondary containment =
protection in case of accidents
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Germany
• § water balance law §
• principle of concern for any kind of
possible ground water pollution
• principle of best possible protection for the
soil – ground water
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Secondary containment based on concrete
• Design with reinforcement and maximal
crack width of the concrete of 0,2 mm
• If possible: no joints
• Concrete is not dense and allows the
passage of ground water / soil
contaminating liquids
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Requirement for organic coatings
• Crack bridging (> 0,2 mm)
• Adhesion
• Resistance to external exposure (freeze, UV)
• Chemical resistance
• Electrostatical discharge behaviour
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
• No existing national norm
• No European Norm
• No European Technical Approval Guideline
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
• National approval guidelines for sumps,
secondary containment and concrete
surfaces in facilities for the storage, filling
and handling of water polluting liquids, Zulassungsgrundsätze für Auffangwannen, Auffangräume und
Flächen aus Beton in Anlagen zum Lagern, Abfüllen und Umschlagen
von wassergefährdenden Flüssigkeiten
• Issuer:
DIBT- German Institute for Construction
Technique Deutsches Institut für Bautechnik
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
• Successful story since the middle of the 80s
• More than 350 approvals
• Chemical resistance
test procedure and list of more than 15
main chemical classes has even lead to
EN 13529
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Chemical resistance
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
EN 13529
Products and systems for the protection and repair of concrete
structures - Test methods - Resistance to severe chemical attack
Liquid class 1-3
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Liquid class 4
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Liquid class 5 - 8
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Liquid class 9 -12
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Liquid class 13 - 15
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Supplementary liquids or higher concentrations not
systematically included in the list have to be tested
separately
Example
Class 10: sulfuric acid of 20 %
Included: hydrochloric acid of up to 20%
Not included: HCl conc.
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Key:
1 Fixing plate
2 Compressed air hose
3 Glued rings
4 Concrete slab
5 Chamber
6 Testing liquid
7 Organic coating system
8 Metal frame
Test device for testing of
chemical resistance
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Levels and exposures acc. to containment character
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Inspection after Exposure
– Blistering
– Flaking
– Cracking
– Optical changes (colour gloss)
– Adhesion, Hardness
– Penetration of chemicals
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Chemical class Level for a polyurea system
1 MIDDLE L2
4 MIDDLE L2
5a MIDDLE L2
6 LOW LAU1
6b LOW LAU1
7 LOW LAU1
8a MIDDLE AU2
9 HIGH AU3
9a LOW LAU1
10 HIGH AU3
11 HIGH AU3
13 HIGH L3
14 HIGH AU3
15 LOW LAU1
Results for
Polyurea
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Crack bridging
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Coating system
Crack
bridging
principle
via
static
bending
test
> 0,2 mm
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Crack
bridging
test
device
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
3-point bending test with electronic elongation gauge
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Test specimen
with failure
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Results for Polyurea
Outstanding performances
in all cases > 2mm
Coating over joints = monolithic protection
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
outdoor exposure
(6 and 24 months)
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
ou
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
indoor exposure
(6 and 24 months)
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
indoor exposure
vertically in wet
surroundings
(storage in boxes
with wet sand)
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Results for Polyurea
no degradation
no cracks
no signal for ageing
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
wear resistance
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Test device acc. to EN 13892-4
Methods of test for screed materials
Part 4: determination of wear resistance
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Trafficability with BCA tester following
EN 13892-4
for movers - forklifters
procedure adapted for technical approvals
1 cycle: 2850 revolutions
for vulcolan tyres: 2 cycles
for polyamid tyres: 10 cycles
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Results for Polyurea
no trace of wear
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Electrostatical discharge
(in case of inflammable liquids)
a) with electrostatic discharging top sealer
b) with additives
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Results for Polyurea
Formulation with additives and top sealer
without any electrostatical discharging
problems
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
occurring problems
Blistering by
renunciation
of primer
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
occurring problems
Adhesion loss
without primer
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Executed jobs
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Spray application
on geotextile
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Spray application
on concrete
retainment basin
wall
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Panel
with
system
description
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Test of electrical surface resistance
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Conclusion
Polyurea based coating systems are able to fulfill
all criterias for ground water protection in industrial
secondary containment according to German
approval guidelines
Lower chemical resistances in comparison with e.g.
the typical range of epoxies compete with a much
higher range of crack bridging capabilities, even with
their performance to bridge joints
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Conclusion
Depending of the location (verticals, steric hindrance)
polyurea profit of their ease of application, e.g.
lower number of working steps,
higher range of thickness applicability per step
These added values can be worth higher system
costs
PDA Europe 2012 Annual Conference –Istanbul, 12-14 November
Polyurea for secondary containment
Thanks
for
your
attention
and
patience
Let‘s have
a break !