83 | Made to measure in Metzingen 8 | "Station Z" Memorial 10 | Blacksmith art 14 | Recycling of Zinc Hot Dip Galvanizing International Magazine | ISSN 1363-0148 | www.galvanizing.org.uk 2008 2/4
Mar 22, 2016
83 | Made to measure in Metzingen
8 | "Station Z" Memorial
10 | Blacksmith art
14 | Recycling of Zinc
Hot Dip GalvanizingInternational Magazine | ISSN 1363-0148 | www.galvanizing.org.uk2008
2/4
There is an expression that ‘what goes around
comes round’ and this is no truer than for art
and fashion. The Arts and Crafts Movement,
an aesthetic movement which occurred about a
hundred years ago, had a romantic idealisation
of the craftsman taking a pride in his personal
handiwork in the face of growing mass produc-
tion. Many of the works by proponents of this
movement such as Edwin Lutyens, Charles
Rennie Mackintosh, Frank Lloyd Wright and
William Morris can still be seen and reflect the
skills of craftsmen that they employed.
If Lutyens, Mackintosh, Lloyd Wright and Morris
were alive today they would be delighted to see
that their movement is safe and well today in
the hands of Phil Johnson and his company
(pp. 10 - 12).
As the article notes, the company ‘should
be applauded for keeping alive the skills of
a traditional industry in today’s quickfix
society’ – the very essence of the Arts
and Crafts Movement.
You wouldn’t normally see a connection
between Hugo Boss in Germany and a
transport interchange in England, but it exists
in the wonderful world of galvanizing.
Hugo Boss’ new building near Stuttgart has a
glass curtain wall system supported by galva-
nized steel and the new Transport Exchange
in Manchester has a very similar glass façade
also supported by galvanized steel.
Hugo Boss obviously like the look of galvanized
steel because they have also used it internally
in a purely aesthetic way for the floor face
plates and stair stringers as can be seen on
our front cover.
David Baron, Editor
Contents
2 Editorial
3 Made to measure in
Metzingen
Architecture and Fashion
6 Manchester Transport
Interchange
8 “Station Z” Memorial
Thought-provoking design
10 Blacksmith Art in the UK
Phil Johnson and Pete Hill
talk about their passion
13 Access Footbridge
Off-site modular design
14 Recycling of Zinc
16 Galvanizing Delight
Front cover:
Hugo Boss administration building, Metzingen
by Domino Planungsgesellschaft Architekten
und Ingenieure (page 3)
Editorial
2 | Hot Dip Galvanizing
2008
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Hugo Boss AG is internationally famous as the fashion industry’s big success story.
Even in times of slow consumer spending, the company is making record profits with
a dynamic range of high-quality brands from classic designs through sportswear to
trendy and glamorous outfits. Hugo Boss has made Metzingen into the ‘capital of
German factory outlets’ and has stayed loyal to the 22,000 inhabitants of the town.
Spread out over a substantial area off the
North Metzingen bypass, the Hugo Boss Cam-
pus is made up of company buildings serving
the various departments of the firm, which
have unusual names such as Moulin Rouge,
Kremlin, Vatican or Piccadilly.
Thanks to some long-term planning, a self-
enclosed company site has developed, divided
into areas such as administration, product
development and storage.
One significant aim was to improve the com-
munication facilities by creating a definite
centre. This also makes it easier for people to
find their way around the company’s premises.
Moreover, a central development creates an
attractive reception area.
In December 2006, a new administration buil-
ding was added, referred to as “d19” for short.
It is located in the vicinity of a structure called
the atrium, and reproduces important elements
of its design. From the outside, the building is a
simple cube and on the inside, it is adaptable.
De-materialisation was the overriding theme of
the architectural design.
The idea was to create as neutral an ambience
as possible for the changing design products
in the fashion range, so that these could be
shown to their best advantage.
This is achieved through standardisation of
the image and restriction to a few dominant
colours and materials. Silver, white and
black (concrete, glass and galvanized steel
respectively) mark the building out.
Hot Dip Galvanizing | 3
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Architecture
Made to measure in MetzingenArchitecture and Fashion
By Holger Glinde
8 | Thermisch Verzinken
Architecture
With a total area of 21,000m² on four storeys,
“d19” provides office space, meeting rooms,
a company restaurant, a fitness studio, show
and event areas and an underground car park
for the 420 employees.
The building is a highly flexible skeleton,
which can be used to create individual, group
or large-scale offices as required.
The building envelope allows for large windows
within the working spaces. These serve a dou-
ble purpose; the building can be naturally venti-
lated and natural light floods into every area of
the building. This is made possible by a double
façade. It has a dual role as a “second skin”:
It is a form-giving element and is of central
importance for the climatic and energy aspects
of the building, as it uses solar energy.
The ventilation principle for “d19” is based on
so-called ‘free ventilation’ (manually operated
systems). An important factor here is the
generously proportioned atrium, around which
the working areas are organised.
The internal façade has been executed as a
strut and span structure, made from rectan-
gular hollow steel sections with a visible width
of 50mm and various structural depths. The
load-bearing sections are positioned within the
internal envelope.
The external façade of “d19” was attached to
the vertical façade columns using cantilever
arms made from flat steel sections. The panes
of glass of the secondary façade are fixed by
stainless steel point supports mounted on the
cantilever arms.
Grating fields have been screwed between the
cantilever arms for reinforcement purposes.
They also act as maintenance webs. The weight
of the external façade is suspended through
connecting rods from cantilever arms mounted
on the upper level of the building.
In addition to materials such as glass, exposed
concrete and polished concrete for the floors,
galvanized steel was also used in many ways
for design reasons. All the steel elements in
the internal and external façades, including the
cantilever arms, connecting rods and gratings,
were galvanized. Moreover, galvanizing was
used to excellent effect as a surface finish in
the internal area.
The floor face-plates of the open storeys, the
cover plate of the strings and the stair railings
were galvanized, which created an artistic
effect.
Externally, all the railings, together with the
canopy of the delivery area, were galvanized.
The living galvanized surfaces harmonise
perfectly with the glass and concrete areas,
and make a vital contribution to the
neutral atmosphere of the building.
Architects/photos: Domino Planungsgesellschaft
Architekten und Ingenieure mbH, Reutlingen
Steel construction/photos: Roschmann Konstruktionen
aus Stahl und Glas GmbH, Gersthofen
2008
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Architektur
Feuerverzinken | 5
2008
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Ian Simpson Architects were appointed to
propose a new concept for the Transport Inter-
change: To design a unified development that
would form a high quality and recognisable
landmark for the city, and improve the environ-
ment for the travelling public, maximising user
comfort, safety and security.
Jefferson Sheard Architects were subsequently
appointed to continue with the design develop-
ment and as Contract Administrator for the
construction of the project.
Design processThe design of the Transport Interchange has
been carefully considered in relation to its
setting within the Shudehill conservation
area and its proximity to a number of listed
buildings.
In order to identify the primary elevation and
entrance to the concourse the form of the
building is orientated so as to present a narrow
frontage.
The bulk of the building extends into the
depth of the site so as to relate to the larger
buildings associated with the surrounding
developments.
The perimeter of the site is bounded by a new
feature wall, which changes in colour, texture
and articulation in response to its adjacent
context, the activity behind the wall and the
historical street pattern.
The wall steps down following the contours of
the site and leads to the north platform of the
metrolink stop.
A high level steel and glass aerofoil shaped
canopy provides shelter to the tram stop and
defines the primary pedestrian entrance to the
concourse.
The multi-storey car park is accommodated
within a very spatially efficient concrete framed
structure. Vertical circulation within the car
park is achieved by an arrangement of tilting
floor plates, commencing at approximately 6m
above the ground floor level.
A façade of frameless glass panes on projecting bracketsAn unusual feature of the development is the
elegant glass façade that encloses the car
park structure. This not only creates a visually
interesting display of diffused colour of each
parked car but at a distance a shimmer of
reflected colour from its surroundings.
The envelope to the car park consists of an
arrangement of fritted glass panels, heavily
articulated within the horizontal plane and
varying in width and density of frit.
The Manchester Transport Interchange forms a key component of the Manchester City
Centre rebuilding strategy following the IRA bomb in 1996. It relocates the bus
station from within the Arndale Centre and allows for the creation of a new winter
garden. The interchange comprises of three primary components: the bus concourse
and passenger stops, a Metrolink Tram stop and a multi-storey car park.
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6 | Hot Dip Galvanizing
Architecture
Manchester Transport InterchangeBy Iqbal Johal
Hot Dip Galvanizing | 7
The panes are positioned in three different
planes by means of projecting glazing brackets;
the air gaps between adjacent panes ventilate
the interior.
The glass is fixed to rows of galvanized steel
ladder-support frames bracketed back to the
concrete edge beam. Each frame consists of a
pair of 89mm diameter CHS transoms welded
top and bottom between vertical 150 x 12mm
steel flats.
Projecting fixing arms are welded to the
transoms to carry the glass support bracketry.
Each pane is supported and restrained by a
combination of galvanized and stainless steel
holding brackets. The intention is to achieve the
required natural ventilation, whilst presenting
an animated and varied façade; the translu-
cency of the glass will achieve visual order but
allow movement and structure to be subtly
expressed.
The concrete, glass and galvanized steel create
a simple harmony of materials and colours
while the design reconciles the needs of
operators and passengers to create a vibrant,
animated and beautiful building.
Architects: Ian Simpson Architects and
Jefferson Sheard Architects
Photos: Daniel Hopkinson
Drawing reproduced with permission of AJ Magazine
Architecture
2008
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During the second world war, the Sachsen-
hausen concentration camp in Oranienburg,
not far from Berlin, was used as a training
centre for concentration camp commanders
and SS squads. In the period after 1945, the
Soviet security services interned officials of
the National Socialist regime and dissidents
in the Sachsenhausen camp and used the
existing facilities, including those at “Station
Z”. In 1950, the German Democratic Republic
People’s Police took the site over and blew up
“Station Z”. In 1961, the East German Com-
munist regime converted part of the site into
a memorial, and roofed over what was left of
“Station Z” with a massive concrete structure.
Areas outside the memorial site continued to
be used by the National People’s Army.
In order to ensure that an appropriate memori-
al remained following re-unification, an
architectural competition was launched,
which was won by HG Merz Architekten und
Museumsgestalter of Stuttgart.
The artificial emptiness of the site, which the
architects were aiming to retain, and the
protective and thought-provoking structure
covering the remaining areas of the site,
designed as an abstract object, avoid any kind
of symbolism or pathos.
As regards the design of its ground plan, the
object-like envelope form is based on the relief
pattern of the original site, but avoids any exact
reconstruction of the original enclosed volume.
There is an attempt to create a
confined space, which is achieved by leaving a
minimal headroom clearance of 2.6m.
The compact structure provides no view of the
outside world – the surroundings can only be
imagined. The protective structure is column
free and has the appearance of a minimal
connection to the ground.
The steel structure of the building deliberately
fades into the background.
2008
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8 | Hot Dip Galvanizing
Architecture
“Station Z” memorialThought-provoking design
By Holger Glinde
Building memorials provides a challenge to their designers to achieve the right balan-
ce between creating a symbol of respect and remembrance without overstepping the
boundaries of emotion and good taste. This is especially true where the crimes of war
are involved. The architects and museum designers HG Merz have found a very unusu-
al and yet appropriate solution for the Sachsenhausen “Station Z” memorial.
The roof and wall surfaces are defined by
means of translucent PTFE film and the struc-
ture of the grids lying beneath. The primary
supporting framework for the 4.10m high
protective envelope is cantilevered, and spans
a square area 37.4m long. The lower limit of
the walls ends 60cm above the top edge of
the site. The supporting structure consists of
a steel spatial framework system with welded
connections, the homogeneity of which is inter-
rupted by a 22m x 10m aperture inside the
roof. Eight plain concrete bases at six-metre
intervals support the load-bearing structure.
One particularly challenging factor for the
architects lay in the fact that they wanted a
total cubic form, to be enveloped in a translu-
cent material. This was intended to give suffi-
cient illumination to the interior from natural
light alone, and simultaneously to let the struc-
ture fade into the background. The solution
which was arrived at involved a membrane,
that was stretched over a secondary structure
of galvanized steel. Whereas normally long-life,
the ability to withstand mechanical abrasion
and metallic aesthetics are the reasons for the
use of galvanized steel, in this project the most
important factor was that the grids were given
rigidity to maintain their dimensions.
The membrane, running both internally and
externally around the steel, is held to the
supporting structure by suction, and forms a
continuous flat surface. The entire structure
appears as a homogenous body, the translu-
cence and radiance of which can be seen
only in relation to natural light.
Architects/photos: HG Merz Architekten und Museums-
gestalter, Stuttgart
Feuerverzinken | 9
Architecture
2008
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Focus on Architecture
Blacksmith art in the UKPhil Johnson and Pete Hill talk about their passion
By Iqbal Johal
P. Johnson & Company, the creative collective of artist blacksmiths at Ratho
Byres Forge, a few miles west of Edinburgh, produce contemporary forged
metalwork utilising traditional skills as practised by blacksmiths over the last
two thousand years.
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Phil Johnson started the company more than
30 years ago when the site was no more than
a cowshed. A mechanical engineer by trade,
he turned his hand to blacksmithing and has
never looked back.
Their work, both functional and sculptural, has
won many prestigious awards, including
The Tonypandy Award and The Saltire Society
Award for Art in Architecture. The family-run
forge is world renowned amongst artist black-
smiths for excellence in both design and
skilled forging, and as such is visited by many
journeymen and travelling smiths.
“The quality comes from both ourselves and
the demands placed upon us by our clients”
says Phil. “We never make the same thing
twice unless it’s required, and we don’t have
pattern moulds or a standard range of designs.
Everything is unique - for the place or for the
person, each project evolves in its own way”.
“Each commission takes us down new and
exciting roads of discovery, in the two-dimensio-
nal form on paper at the design stage and then
again as we proceed to the three-dimensional
form of the metal, the design developing as the
metal itself suggests shapes and ideas to the
mind. Some of our projects can take months to
complete”.
“Over the years, our metalwork designs have
moved away from the traditional scroll and leaf
languages of the village blacksmith and have
taken on a much more sculptural style, often
encouraged by our clients once they realise the
potential of shaping and forming hot metal”.
GalvanizingThe preferred material that Phil and Pete work
with is mild steel, and all the exterior work
is galvanized, “We tend to rivet all of our
connections which makes our work suitable
for galvanizing”.
P. Johnson offer their clients a high quality
finished product and this is where their additi-
onal attention to detail plays a significant role
in their work. By galvanizing all of their external
work they automatically provide long term
protection for their client’s work. In addition to
this, a lot of their work is finished in a number
of interesting ways that adds to its character.
Finishing “We provide a variety of finishes to our work
depending on the requirements of our clients
and the context of the particular design that
we work on. One process that we find really
interesting is pre-treatment of the galvanized
coating which is normally carried out before
painting. This provides a varied dark grey/black
mottled effect to the coating which appeals to
our clients”.
“This works very well particularly with the old
stone buildings of Edinburgh where the natural
10 | Hot Dip Galvanizing
Hot Dip Galvanizing | 11
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materials weather and change over time and
rather than having a flat paint finish to our
work that looks very modern, the mottled toned
effect that you achieve with the pre-treatment
helps to soften and blend the galvanized
coating with its surrounding materials.
The other aspect that you achieve by doing
this is the mottling actually changes with the
weather so when it rains it gets slightly darker
in colour and as it dries it goes back to a
lighter colour.
This complements the stone work which also
changes colour when wet or dry”.
“We also pre-treat some of our work and then
apply a clear lacquer. This again adds to the
overall appearance of the finished article.
The lacquer will break down over a period of
time due to Ultra Violet Light which would then
reveal the etched finish”.
When P. Johnson do paint their work, they
again try to be different. Pete explains a system
they sometimes employ “We follow our normal
painting procedures but for specific projects we
add graphite to the paint.
It depends really on the project, this finish is
a lot more labour intensive as we have to rub
the work to expose the graphite. The process
creates a metallic effect that brings life to the
coating rather than a homo-genous flatness.
We have used it quite a lot and clients like it
because it’s a wee bit different and more than
just a flat black piece of steel”.
“There is an issue with the graphite running off
on your hands, so this technique is used for
work that is visual rather than for physical use.
The rest of our work we do paint if that is the
requirement of the client”.
Over the years, P Johnson have created a good
working relationship with the galvanizers that
they use for their work. This is an important ele-
ment for achieving the required standard that
they expect for their work.
“Galvanizing goes hand-in-hand with what we
are trying to achieve with the natural finish.
Without the galvanizing, we wouldn’t get the
finish that we like.
Although we are predominantly using galvani-
zing as a means of protecting our work, we
are manipulating it afterwards in order to get
something extra out of it as well”.
Although the art of the blacksmith may be
waning, the success of P. Johnson has shown
that there are pockets across the country
where the old traditional skills are still burning
strongly.
The high quality of their work which combines
two old industries proves that there is still a
place in the modern world for these well-tried
and tested processes.
P. Johnson should be applauded, not only for
their work, but for keeping alive the skills
of a traditional industry in today’s quick fix
consumer society.
Photos:
P. Johnson and Iqbal Johal
12 | Hot Dip Galvanizing
Hot Dip Galvanizing | 13
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Comprehensive conversion and renovation
work has been carried out to limit walking
distance for staff and to optimise the logistics
of production. A footbridge had to be erected
to create a link to an adjacent building.
The design for the bridge was based on the
following criteria:
• the bridge was to take the form of a light
steel construction
• a height differential of 26cm had to be
compensated for
• as much clearance as possible had to be
left for the passage to the rear of the
company’s site
• long term durability was to be a very
important aspect of the design criteria.
Knabe & Knabe, the architects and engineers
from Suhl who were selected to plan and
implement this project, solved the problem by
embedding the static bearing structure under
the bridge canopy and spandrel-bracing it on
slim tubular steel frames (80x6.3mm).
Each frame was given a different length, to
provide an inclined plane and overcome the
height difference.
The decision to use galvanizing for the corro-
sion protection of the steel was made very
early in the design process.
This allowed the engineers to design the bridge
components with galvanizing in mind.
For example, the overall design was symmetri-
cal and steel sections of a sufficient thickness
were selected.
As a fully welded structure, the 12m long
bridge had to be galvanized in one section.
For this reason, the maximum dimensions were
compared with the existing bath sizes of the
galvanizing plants in the surrounding area.
The bridge was galvanized and was swung into
position by crane and bolted together using
steel brackets, so that there was no significant
interruption to the factory’s routine during the
installation of the bridge on site.
In order for the bridge to be integrated into
the overall design of the adjacent production
buildings, the bridge was painted yellow.
Architects/photos: Knabe & Knabe Architekten
und Ingenieure, Suhl
Feinmess Suhl is one of the oldest companies manufacturing precision gauges in
Germany, and can look back on a great tradition which began in 1878. Nowadays,
the company manufactures measuring instruments which combine precision and
mechanical and electronic components. The company is currently located in a
production plant which dates back to 1937.
Architecture
Access FootbridgeOff-site modular design
By Holger Glinde
14 | Hot Dip Galvanizing
Sustainability
Zinc recycling plays a very important role in the life cycle of galvanized steel.
In fact, recycling features in every stage of that life cycle and the zinc recycling story
has a few surprises too!
Recycling of Zinc By Murray Cook, Director, European General Galvanizers Association
You probably didn’t realise that most cosmetics
contain fine zinc dust that has been recycled
from the drosses produced as a co-product of
the galvanizing process.
Tyre rubber relies on zinc oxide that has been
added to ensure correct properties for good
braking and wear.
That zinc oxide is also produced from ashes
that are recycled from the galvanizing process.
Zinc oxide is also used in protective sun creams
and other medical products.
You might also be surprised to know that zinc
is increasingly recovered during the recycling
of scrap steel and is used in refined zinc
production as an alternative to mined ores.
Finally, did you know that a lot of the zinc used
by galvanizing plants could be over 100 years
old and has spent a previous life as rolled zinc
roofing or gutters in cities such as Paris?
Over 98% of scrap zinc roofing and gutters
are collected and recycled in countries like
Belgium, the Netherlands and France. After
a simple cleaning and remelting process the
remelt zinc is used directly for galvanizing.
This article explores the zinc recycling story
and looks at the details behind those little
recycling surprises.
Zinc recyclingZinc is an inherently recyclable non-ferrous
metal and can be recycled indefinitely without
any loss of physical or chemical properties.
At present, approximately 70% of zinc comes
from mined zinc ores and about 30% comes
from recycled, or secondary, zinc (representing
80% of the zinc available for recycling).
The recycling level continues to increase as
technology improves.
Use of recycled zinc in galvanizingThere are two important sources of zinc used in
the galvanizing process:
• Primary (refined) zinc is produced from a mix
of both mined ores and secondary (recycled)
feedstock. It is estimated that, on average,
refined zinc contains about 15% of
secondary feedstock.
• Galvanizers are also important purchasers of
remelt zinc – that is scrap zinc from, for
example, old zinc roofs that has been
cleaned and remelted into ingot form.
So, the refined zinc purchased by galvanizing
plants contains a high proportion of recycled
zinc and fully recycled zinc is often purchased
to supplement use of refined zinc.
The production of one kg of primary zinc (from
ore) requires gross energy of about 50MJ,
although only 20MJ of this energy is used
directly in zinc production (Boustead 1999).
One Kilogramme of remelt zinc used by general
galvanizers requires just 2.5MJ to produce.
(source: Sachbilanz Zink, University of Aachen,
2002).
1 The zinc recycling circuit2 Zinc from scrap zinc-coated steel is recovered during
steelmaking and re-used in the production of new zinc.
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Total scrap
Recycled zinc production
(oxide, dust, slabs)
Zinc ore frommine production
Refined zinc production
Zinc products
Process scrap offcuts,trimmings, galvanizing,
residues, ashes
Old scrap automobiles,appliances, die-cast,
parts, galvanized steel
HOT DIP GALVANIZING
An international journal published jointly by the galvanizing associations of Germany,
The Netherlands and Great Britain. It is licensed to associations in Spain.
Edited by: G. Deimel, H. Glinde (Editor in Chief), I. Johal, D. Baron,
Drs. G. H. J. Reimerink
Published by: Galvanizers Association, Wren’s Court,
56 Victoria Road, Sutton Coldfield, West Midlands B72 1SY, UK
Tel: +44 (0) 121 355 8838 Fax: +44 (0) 121 355 8727
E-Mail: [email protected] Internet: www.galvanizing.org.uk
This magazine may not be copied without the written permission of the editor © 2008.
Distributed in Australia by: Galvanizers Association of Australia, 124 Exhibition Street,
Melbourne, Victoria 3000, Australia, Tel: 0396541266, Fax: 0396541136,
E-mail: [email protected]
Sustainability
Recycling of galvanizing process residuesDuring the galvanizing process, iron or steel
articles are dipped into a bath containing
molten zinc just above its melting point.
Any zinc that does not form a coating on the
steel remains in the bath for further reuse.
There is no loss of materials that may occur
during spray application of other coating types.
Zinc ash (from surface oxidation of the galvani-
zing bath) and dross (a mix of zinc and iron that
accumulates at the bottom of the galvanizing
bath) are fully recovered.
Any zinc metal within the crude ash is directly
recycled for further use, often in the same gal-
vanizing process.
The fine ash and dross are then sold to make
zinc dust and compounds for a variety of
applications such as rubber additives, cosme-
tics and electronic components.
Some galvanizing plants have facilities for
on-site treatment of their ashes and can
reintroduce the zinc from those ashes into
their galvanizing process.
Reuse of galvanized steelworkMany galvanized steel products can be remo-
ved, re-galvanized and returned to use.
For example, highway guard rails are often
removed and replaced during routine highway
maintenance and resurfacing.
The redundant barriers are returned to the
galvanizing plant for re-galvanizing and are then
used again in similar applications. The zinc-
rich acid that is produced by stripping the
remaining coating can be used for production
of zinc compounds for the chemical industry.
Recycling galvanized steelworkGalvanized steel can be recycled easily with
other steel scrap in the steel production
process.
Zinc volatilises early in the process and is
collected in the electric arc furnace (EAF) dust
that is then recycled in specialist facilities
and often returns to primary zinc production.
In 2006, the European steel industry (EU27)
produced 1,290,750 tonnes of EAF dust, which
contained 296,872 tonnes of zinc (i.e., 23%).
93% of this zinc (276,920 tonnes) was
recycled. (source: Gesellschaft für Bergbau,
Metallurgie, Rohstoff- und Umwelttechnik,
Germany)
Further information: www.zincforlife.org/recycling.html
Photo: Institut Feuerverzinken, Düsseldorf
4 The life-cycle of hot dip galvanized steel: main areas of consideration
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3 Flows of recycled zinc within the galvanizing process and at end of life
Scrap Zinc,e.g. from roofs/gutters
Refined Zinc production (Zinc ores)
Long service lifeGalvanizing Bath
Zinc-rich EAF dust(Electric Arc Furnace)
Steel recycling
End-of-life recycling
Zinc and steel recoveredfrom construction waste
Regalvanizing andreuse of steel products
Rubber additivesCosmeticElectronics
Zinc ash & drossrecovered from bathproduce zinc compounds
In-process efficiency and recycling
Processconsumables &
their regeneration& recycling
Galvanizingprocess
Durability &service life
Zinc production
Re-use and/
or Recycle
Entrained zincsent for remelting
The tower consists of an 18 metre high tape-
ring brick shaft with a circular cross section.
A water reservoir with a capacity of 500 m3 is
located on top of the shaft. The 2 metre taper
which protrudes outside the shaft is covered
with a brick housing with crenels at the top.
Curved brickwork in which 16 steel brackets
have been included forms the transition
between the shaft and the water tank housing.
Restoration was particularly necessary because
the steel sections had been seriously affected.
Over the course of time, the built-in steel
columns and the built-in cast iron window
frames were also extremely corroded.
The surrounding brickwork was being damaged
as a result of the pressure caused by the
increase in volume of the corroded material.
New galvanized sections have been added to
form part of the restoration.
Opdracht restauratie: Hydron Midden-Nederland
Architect: ZZDP Archtitecten, Amstelveen
Uitvoering: Aannemingsbedrijf H.J. Jurriëns bv, Utrecht
Photos: Stichting Doelmatig Verzinken, Nieuwegein
Galvanizing in Detail
Galvanizing Delight2008
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