Burdens Australia Pty Ltd. Launch there the latest range of Structurally Certified Access Chambers and Cover solutions into the Energy/Rail/Telecoms/water and Oil & Gas sector.

1. Structurally Certified Access
Chambers and Cover Sytems
www.burdens.net.auAdvanced Products For Network Infrastructure

2. WATER ENERGY TELECOMS RAIL HIGHWAYS
Burdens Australia’s Management team have over 100 years’ experience in all aspects of
Civil Electrical Rail and Network Infrastructure Construction. This direct experience is
strengthened by a global network of experts in Network Infrastructure Provision, each
having more than a decade in their area of expertise.
Unrivalled Australian Experience
To Accelerate delivery of critical Network
Infrastructure in Australia and New Zealand
while reducing cost and improving the use of
resources.
Burdens Australia achieve this through the
provision of innovative products, engineered
for purpose, and through collaboration with
other leading companies to continuously
improve ways to build and manage valuable
Network Infrastructure in the region.
Burdens Australia has partnered with innovative suppliers to bring to the Australian Market
thebestofproductsfromtheInfrastructureConstructionIndustry. Thebusinessisaspecialist
in the provision of time saving products manufactured and tested to withstand Australia’s
environment. Burdens Australia strives to meet the needs, challenges and objectives of our
Clients and Partners and bring together solutions which exceed expectation.
Infrastructure is essential for the operation of a nation and its
economy. Infrastructure removes barriers and limits on a Nation
developing its resources and helps to build a growing, broad
based economy.
Burdens Australia’s Mission:
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Burdens Australia
Advanced Products For the Australian Infrastructure

3. Reduced waste
and inefficiency
Only 25 to 30% of the cost of network
infrastructure is from the systems
components of cables, pipes, valves, pumps,
electronics, telemetry and other active system
components.
Burdens Australia targets reduction
of the other 70% to 75% associated
with costs of construction
Equipment, project and construction
management, logistics, safety,
traffic management, storage, heavy
transport and labour.
Waste and inefficiency has plagued Infrastructure Construction around the globe.
Burdens Australia’s products are engineered to enable the latest methodologies that
improve the speed and efficiency of Network Infrastructure Construction, enhance
productivity, improve Build Quality, reduce costs and provide both Operators and
Contractors a better return on their investment.
Infrastructure for Telecommunications,
Power, Water, Rail and Gas Distribution.
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4. The EZYstack Access Chamber System is a cutting edge design which uses high quality re-
constituted and re-cycled composite polymer materials to provide a series of man portable rings
which fit together to form a multi-purpose Access Chamber for use in the infrastructure.
Active in Australia & New Zealand and more than 20 countries throughout Europe and the Middle
East, EZYstack™ has a customer base that includes water and power utilities, telecommunications
operators, rail networks and main roads operators.
Our unrivaled range of products are available directly from Burdens Australia Pty Ltd.
This brochure will introduce you to our range of Access Chambers, Covers and Frames and the
accessories to complete your system.
Strong customer service is fundamental to our business and if there are any questions related to any
aspect of this brochure, we ask you to get in contact using the details on the back cover.
EZYstack™ is the World leader in preformed access
chamber systems.
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Advanced Products For the Australian Infrastructure

5. Surface manhole covers installed in Australia must meet the requirements of the Australian Standard AS3996
(road gully and inspection chamber covers). Products designed to AS3996 are grouped depending on their
place of installation.
Surface Covers
AS3996 Standard
Load Classes
Chambers
Access Chamber Standards
Unlike manhole covers, there is no
Australia-wide Standard for non-concrete
preformed access chambers. EZYstack™
has created its own vigorous range of
tests to replicate a range of scenarios
our chambers may experience when
installed. Some of these tests have then
been applied on a cyclic basis to further
demonstrate our products resilience and
strength against site conditions.
Wherever possible these tests have
been carried out and verified by NATA
Accredited test houses.
Pedestrian
applications
inaccessible to
motor vehicles
Footpath and areas
where vehicles
mount accidently
or for light vehicles
such as tractors or
livestock
Light vehicular
traffic. Minor roads
such as cul-de-sacs
and parking areas
Roads carrying
fast moving, heavy
vehicles
Very heavy wheel
loads as found
on construction
sites, mining and
industrial sites
Extra heavy
wheel loads as
encountered on
container terminals,
docks and mining
areas
Extra heavy wheel
loads - airports,
military traffic etc.
A. 10kN B. 80kN C. 150kN D. 210kN E. 400kN F. 600kN G. 900kN
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6. Why use EZYstack access chambers?
Typical Install of EZYstack™ Heavy - 30 minutes
02.00
After the hole is
excavated the area for the
base is leveled.
05.00
Base section placed in hole
and EZYstack™ sections
placed on top
09.00
Build chamber to finished
height.
FAST
• Installed in as little as 30 mins.
• Quicker re-opening of roads,
footways or rail tracks.
STRONG
• Unsupported 60 tonne vertical
loads achievable.
• Side loads comparable with
concrete.
SAFE
• All parts below 25kg.
VALUE
• No skilled labour or specialist
lifting equipment necessary.
SUPERIOR
• Consistently factory produced to
ISO 9001
• Not affected by frost, acids,
sulphate, alkalis or diesel - all
concrete killers.
FLEXIBLE
• Available in a range of fixed
depth or modular designs.
• Duct entries quickly and safely
formed on site or factory
prepared.
• Overbuilding or benching is easily
achieved.
• Clear opening sizes from 300mm
x 300mm to 4000mm x 4000mm.
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Advanced Products For the Australian Infrastructure

7. PEDIGREE
• Products approved by many
high profile blue chip clients.
ENVIRONMENTAL
• All chambers are recyclable.
• Chambers make use of
recycled material where
possible.
COMPLETE
• Everything you need for
underground access chamber
construction.
TESTING
• Products are tested in house
and externally in accordance
with AS3996
19.00
Backfill and compact
surrounding material.
20.00
Ensure pit level
is correct to finished
surface level.
30.00
Install surface covers and
reinstate.
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8. Subject to
installation
specification
EZYstack™ SATURN
MATERIAL Talc Filled Polypropylene (PP)
Component
Ring STRENGTH
Solid Ring
STRENGTH
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The EZYstack™ SATURN is mostly utilised for footway
installations but due to its excellent vertical load
capability it can also be installed in trafficked areas.
EZYstack™ is a range of sectional, modular and structural preformed access
chambers. Each chamber is made from 150mm deep stacking sections which interlock
to offer flexibility in finished chamber depths.
The range has variants for footway and carriage/roadway installations. To help choose
the most appropriate chamber for your installation please refer to the strength
definition to the left of each description.
The strength definitions correspond with the load classes shown on page 5.
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5
The system offers network owners and utility companies alike the ability to construct network
access points consistently and quickly to a higher quality than traditional methods. Whilst
reducing costs at the time of installation as well as the whole of life of the product.
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KEY BENEFITS
• 150mm sections
• Sections stack on each other to achieve the
depth required
• Structural twin wall design
• Independently strong;
• Available in 100mm, 150mm, 600mm to
produce a wide range of chamber sizes
EZYstack™ RANGE
FLAT
PACK
Advanced Products For the Australian Infrastructure

9. EZYstack™ JUPITER
MATERIAL Glass Reinforced Polyester Resin
(GRP)
STRENGTH 6
The EZYstack™ JUPITER is ideal for roadway
installations as the material used does not suffer
from creep, the process where an unsupported
or non-compacted sidewall can move over time
due to loading from traffic. In addition it provides
a much more rigid sidewall in larger chambers
and has good thermal stability in extremes of
temperature. EZYstack™ JUPITER is also available
in a fire retardant material to UL94 5VA.
Offering extreme
flexibility, EZYstack™ JUPITER can be
fabricated to manufacture any chamber
dimension.
• 150mm sections
• Sections stack on each other to achieve the
depth required
• Structural twin wall design
• Independently strong;
• Minimum 40 tonne loading
• Does not require concrete support
• All parts weigh less than 25kg
• Huge size range
• Keys to surround and surface frame;
• Ribs on the outside, grooves on top
• Smooth, rib free internal walls
• Compatible with existing surface
• Covers and accessories
• Flat pack component design
KEY BENEFITS
Our unique flat pack designs allow for the best of both worlds, providing the
ability to ship chambers with a minimum of pallet space yet still have the strength and
quality associated with our EZYstack™ system.
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FLAT
PACK
Solid rings are the most popular component
ring sizes, moulded in a single solid piece.
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10. The EZYstack™ range of surface covers provide customers with a complete underground network access
system as they are designed and manufactured from a range of materials to compliment our chamber
ranges. The EZYstack™ range can be tailored to meet specified loading requirements from pedestrian up
to carriageway use and are available in a wide range of clear opening dimensions and depths.
Covers and frames are made from galvanised steel and are
designed to meet the requirements of areas requiring high
aesthetic finishes
A minimal amount of metal is visible on the exposed
surface and covers are fitted with locking bolts for security
purposes
The deep pan accomodates concrete bedding, allowing
the quick and easy installation of pavers and reducing the
need for cutting pavers
Option of stainless steel or brass decorative edging
available on request
RECESSED URBAN CLASSIC
COVERS & FRAMES
GALVANISED STEEL
Galvanised steel covers to fit any size of chamber
Widely used in water treatment and pumping station chamber locations and
general construction
21 tonnes (D 210kN), 15 tonnes (C 150kN), 8 tonnes (B 80kN) and 1 tonne (A 10
kN) loadings available
High security, unauthorised entry prevention options
Hot dip galvanised to AS1650/1980 & EN1461 standard and/or aesthetic powder
coated
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Advanced Products For the Australian Infrastructure

11. COMPOSITE
Produced from sheet moulding compound (SMC), a type of glass
reinforced polyester resin (GPR).
21 tonnes (D210kN), 15 tonnes (C 150kN), 8 tonnes (B80kN) and a
1 tonne (A10kN) loadings available.
Covers are light in weight and fall below the 25kg single person
lifting weight.
No inerent scrap value
Galvanised steel frame with internal or external locating skirt.
Can be supplied with holes for securing to the chamber with self-tapping
screws.
Rising skirt assists with reinstatement and prevents ingress of debris if the
frame is raised in the future.
Raising frame strengthens the top chamber section, it also enables the ability to
pack under the frame and raise it 30-40mm
RAISING FRAME
More durable, reliable and flexible than other materials
High impact resistance
Available in a range of sizes from 300mm-1000mm (for single
parts)
Available in circular, rectangular and square configurations
Use in infrastructure projects, stormwater and sewer covers.
Also available in multi-part sizes
DUCTILE IRON SOLID TOP
Designed to match the surrounding environment
Used in various applications such as carparks, landscape areas,
airports and train stations.
Superior strength to weight ratio compared to cast iron
Available with brass and stainless steel edging for decorative
purposes
Also available in multi-part sizes
DUCTILE IRON INFILL
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12. Using a EZYstack™ Access Chamber system can save even more time with our Options and
Accessories range, allowing installers to simply place, connect up tubes or ducts, backfill and walk
away.
EZYstack™ have therefore developed a range to cater for all network operator requirements.
Focusing on customers needs, we have developed the parts required and
offer a pre-fitting service, saving further time on site and providing a consistent build quality.
BASES
•
•
We extrude 100% recycled low density polyethylene chamber bases to suit
any chamber size. These are securely fitted to a ring section or bottom of
a chamber to provide a clean easy finish to the floor of the chamber. There
is no requirement to‘float’a floor on site and the floor prevents vegetation
and silt from entering.
Bases are available with an anti-slip finish, grated drainage holes with silt
block, sumps to provide a low point for removal of water and built in cable
pulling eyes.
• Chambers deeper than 600mm will usually require steps or ladders for
access. We supply high quality drop- in or bolt-on steps to suit customer
requirements.
•
•
Conduits, tubes and pipes come in many size and wall configurations and
we have developed fittings which provide for the simple transit of these
into our chambers. Whilst duct entries can always be made very easily on
site, our pre-fit service gives consistent spacing and internal wall finish
every time.
The addition of cable glands means they will also stop sand, silt and if
required, water ingress at the point of entry.
ACCESSORIES
DUCT ENTRY
ACCESSORIES
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• To compliment Burdens extensive range of chambers we are able to offer
concrete surrounds as an additional service
CONCRETE SURROUNDS
Advanced Products For the Australian Infrastructure

13. 0
10
20
30
40
50
60
70
80
90
100
02468 10
AppliedLoad(kN)
Centre Span Deflection (mm)
Load vs Deflection Plot (Ultimate Limit State Design Load)
Test 1
Test 2
Finite Element Analysis (FEA) for proving
of product loading and other performance
criterion. Simulation software to test products
for load bearing and stress.
In-house load testing facilities, capable of
testing chambers up to 1500mm x 2500mm x
1500mm in size with loads of up to 40 tonnes,
vertically and laterally.
Design Production
Burdens Australia is ready to work on bespoke projects and has a successful track record in taking a
project from conception to production. Burdens Australia launches new products in the marketplace
every year, highlighting our commitment to innovating new systems and fulfilling customer needs.
Design Capabilities
Full CAD design and 3D part generation
EZYstack™ technical staff can
provide support to specifiers,
engineers and contractors
regarding our products. This service
includes detailed CAD design,
installation support and technical
guidance. They can be contacted
by phone, fax or e-mail, using the
details supplied on the back cover.
Technical Assistance
TECHNICAL
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14. SPECIALIST PRODUCTS
EZYstack™ CABLE TROUGH
Burdens iDS™ plastic cable trough is ideal for laying in signal and communications
lines underground on railway routes and in power plants and industrial installations. The fact that it can
be laid so simply and quickly is particularly useful with short closure times or on difficult ground. Its
structural design ensures that it is very stable in spite of its low weight and it provides cables and pipes
with effective protection against external influences.
• Horizontal segments - increase strength substantially when installed
• Can be laid above ground if earth nails are used
• Cover can be installed over two troughs
• Cover can be firmly connected even when open
• Covers can be opened individually
• Cables and pipes that have been laid are easily accessible anywhere and at any time
• Cables and pipes effectively protected against external influences
• No earthing or insulation necessary
• Easy adjustments on-site - ability to mitre 45 and 90 degree angles on site
• Cable duct can be laid simply and quickly, cutting down closure times for assembly
• Light weight, maintenance-free and 100% recyclable
• No jointing components
• EZYstack plastic cable trough is reusable
100mm WIDE 240mm WIDE
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Advanced Products For the Australian Infrastructure

15. EZYduct™ Standard Conduit
Male & female (spigot & bell) ends on each unit for fast & easy assembly
DOUBLE BELLS
PRODUCT
REFERENCE
4W-42
6W-42
9W-42
EZYduct Accessories
PRODUCT REFERENCE PRODUCT DESCRIPTION
4W-BB
6W-BB
9W-BB
4 Way Double Bell
6 Way Double Bell
9 Way Double Bell
Adapter to connect 2 x EZYduct™ male/spigot ends together
SINGLE DUCT
ADAPTERS
PRODUCT REFERENCE PRODUCT DESCRIPTION
4W-SDA
6W-SDA
9W-SDA
4 Way Single Duct Adapter
6 Way Single Duct Adapter
9 Way Single Duct Adapter
Adapters to interface between EZYduct™ and circular duct
PRODUCT
DESCRIPTION
4 Way EZYduct™
6 Way EZYduct™
9 Way EZYduct™
DOUBLE SPIGOTS
LENGTH
(MM)
1065
1065
1065
SECTION
(MM)
252252376
252
358
376
PRODUCT REFERENCE PRODUCT DESCRIPTION
4W-SS
6W-SS
9W-SS
4 Way Double Bell
6 Way Double Bell
9 Way Double Bell
Adapter to connect 2 x EZYduct™ female/bell ends together
OTHERS
S-0100
G-4W
G-6W
G-9W
DPCR
DPSQ
Spring Clips
4 Way Neoprene Gasket
6 Way Neoprene Gasket
9 Way Neoprene Gasket
Solid Duct Plug for Corners
Solid Duct Plug for Squares
Flexible duct (50 m roll)
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16. Burdens Head Office
57 Distinction Road
Wangara
Western Australia, 6065
Ph: (08) 9302 4077
Fax: (08) 9302 1677
E-mail: sales@burdens.net.au
Burdens Queensland
Unit 2/47 Commerce Circuit
Yatala
QLD 4207
Ph: (07) 3290 6121
Fax: (07) 3290 5486
E-mail: qldsales@burdens.net.au www.burdens.net.au