Galvanised Gabions & Quality Standards
With weld mesh gabions now incorporated into modern landscape designs, both commercial and residential, it&#;s become some what confusing for consumers to determine what material and specification is best for your project.
If you want to learn more, please visit our website galfan gabion box manufacturer.
After a decade in the market specialising in high quality materials here&#;s a quick overview to help sift through the online jargon and help clarify key elements of material differences and provide knowledge to invest once and get the job done right first time around.
Every supplier of gabions have varying origin of material supply, wire and coating type to promote.
To help drill down on the important factors straight away we have reviewed and tested numerous brands on the market and found some pretty astonishing results.
Firstly gabions are generally a structural product widely used for retaining walls and earth stabilisation therefore must comply with the Australian gabion standard for material quality and life expectancy.
This standard has been set to ensure no loss of property or injury through failure of material.
With ease of importing direct from China combined with increased margins for the importer, it&#;s pretty fair to say that any gabion material coming from China does not meet Australian Standards.
Apart from our selves there is only 1 other supplier in Australia that have dedicated gabion mesh.
The imported steel material is such low carbon steel, mesh panels are actually physically much lighter than they should be.
Another point of interest was the weld points are also very shallow, in fact once rock is installed into the low quality gabions, the mesh cross wire would pop off the weld point, in turn increasing stress loads and bulging of the gabion. This ultimately leads to failure.
Some of the weld points are basically tack welded, as an example we have even been able to wobble the cross wire off the weld point with our finger tips on a test we conducted.
Steel Wire Coating Type
The Problems Arising From Galvanised Gabions
The other mis-conception is the coating of the wire. Put simply, if the gabion has been put together of galvanised wire expect to replace the structure in 5-10 years.
There are numerous websites promoting 50, 60 and even 70+year life cycle with galvanised mesh. These statements are grossly incorrect and misleading. There is zero evidence to substantiate these claims.
Why &#; Because the material simply fails to last that long, just ask them to prove it! or better still a comprehensive data sheet from their factory.
These companies are attempting to profit on a new concept with-out bothering to understand the need to offer consumers a safe and sustainable product. Really no different from the cheap building materials such as cladding, solar panels etc flooding into the market.
The life cycle claims are an attempt to compete with the superior galfan coating, which has been proven through numerous 3rd party laboratory and field tests with supporting evidence of life cycle up to 100 years.
Most galvanised mesh has been manufactured for the general fence industry therefore coating type, coating density, tensile strength and overall quality is much lower. The Australian standards for fence mesh is much lower spec than the Australian standard for gabion mesh.
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So what does this boil down to &#; well put bluntly galvanised gabions in any form or wire diameter are simply not fit for purpose. They are fence mesh dressed up as gabions.
Our test on 5mm galvanised mesh shows rapid corrosion in comparison to Century Mesh with genuine galfan coating. https://www.gabioncages.com.au/what-is-galfan-coating/
The panels were placed into identical environment at the same time for the exact same period. You can witness the visual impact of rapid deterioration of the steel as the galvanised coating fails.
This was an Australian made galvanised panel so can you imagine what an imported panel would do!
The Solution is simple, the material must be of genuine galfan coating and meet the Australian Gabion standards. The correct material such as Century Mesh & Century Gabions will serve for 50+ years in a mild environment and up to 100 years away from the sea.
Interestingly,century mesh material is competitively priced agaisnt the inferior galvanised variety, so the question remains &#; why would you bother achieving a lesser result for the same financial outlay.
Image Shows salt water test conducted on a 5mm galvanised panel V&#;s Century mesh Galfan Coating.
The following 2 images are showing rapid corrosion impacting galvanised gabions on a wall installed 3 years ago.
What is a Gabion Basket?
Gabion baskets are wire cages filled with rocks, concrete, or other natural materials. They are used in landscaping and civil engineering projects for erosion control, slope stabilization, and retaining walls. Gabion baskets are a popular choice due to their durability and low maintenance requirements.
In landscaping, gabion baskets can be used to create raised beds, retaining walls, and even outdoor furniture. They can also be used to create water features such as fish ponds or waterfalls. Gabion baskets are often used in areas prone to erosion or in need of slope stabilization. In addition to their practical uses, gabion baskets can also add a unique and visually appealing element to any landscape design.
There are a few different options for filling gabion baskets. The most common choice is rocks, which can be easily sourced from a local quarry or riverbed. Concrete can also be used, although natural materials are generally more environmentally friendly. Other options for filling gabion baskets include wood chips, recycled glass, and even plants.
When used in landscaping and civil engineering projects, gabion baskets provide both functional and aesthetic benefits. They are a durable and customizable option that can be tailored to fit the specific needs of each project. If you're considering using gabion baskets in your next project, be sure to consider their versatility and strength as a building material.
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