Bottlebank Trials
The Bottle bank trials which conluded in November 2012, with participating councils around the country, have provided good reference data about the best systems for good quality glass recovery. Major participation in the Tasman District, directed primarily at camp sites and public spaces, with the Nelson Environment Centre, provided a detailed report and including evaluation as to the future utilisation of the facilities. What has become initially very clear is that if the bottle banks are well maintained by the proprietor, the public will respond accordingly more>>
Funded Initiatives

The Glass Packaging Forum funds programmes that develop alternative volume uses for local waste glass and provide infrastructure to facilitate the collection of colour separated glass for remanufacture into new bottles and jars. The projects that are up and running are listed on this page. In its early days of operation the Forum utilized a Mobil Glass Crusher at locations throughout the Country.
Click on a location on the map to read about successful glass recycling projects in that area.
Notwithstanding that those initial applications for Grants were limited, the Forum has now made a considerable sum of money available to investigate a number of initiatives from a broad range of applicants. While an initial emphasis has been on utilizing the material as a substitute for aggregate the situation has now changed with glass now required for remanufacture as well as a number of interesting projects being evaluated which should result in a higher value use of the material.
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With the conclusion of the Forum's own crushing programme which provided an opportunity to develop alternative uses, further crushing programmes have been developed, with a particular example being that of Silaca Crushers. |
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Silaca Crushers, the current owners and operators of the Mobile Crusher, have designed and developed a unit which sits on a skip bin or trailer, can be manually feed and as a result provide colour separated glass. This is an inexpensive unit that will allow for purchase by local operators who will then be able to deal with incoming collections without the need to store in volume before processing. For further information go to www.crushedglass.co.nz |
Auckland
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Waiheke Island |
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Waiheke Island - Waiheke Resource Trust had received funding for a versatile crusher which enabled locally sourced glass aggregate to be used on the island. However the change in policy with regard to domestic collections of recyclables has resulted in the crusher no longer being required at this time and new opportunities are being sought for its use. | ||
Polymer Concrete Tiles
A novel method of producing a low cost concrete type product using various recycled materials. The product looks like and behaves like a concrete. It is chemically inert and resistant to fungi. It can easily be made to look like several types of rock, ceramic tiles or coloured concrete. Aggregates of different types can be impregnated into its surface during manufacture. The process represents an opportunity to utilise a number of 'wastes' and produce a product for local application.
Palmerston North
Palmerston North City CouncilThe council, in co-operation with Higgins Contractors, have produced cycle tracks and hard stand areas utilising glass in the base course. After successfully trialling a section of road this is one option for mixed glass aggregate. The Council is to modify its domestic recycling collections so as to keep glass separate from the other recyclable materials - this will allow the collection of quality glass. |
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![]() NEW SPLIT BIN – Multi Products Kept SeparateThe Forum recently committed to supporting the development of a unique household recycling bin and modified truck which will allow for glass to be kept separate from other household recyclables without requiring the need for a separate collection system. This process will allow for one trip mechanized handling while still keeping the glass separate and the containers largely unbroken allowing for colour separation and quality material for remanufacture. | |
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5% Crushed Glass Aggregate ProjectPalmerston North City Council in partnership with Fullcircle and Higgins Aggregate have initiated a "5% Crushed Glass Aggregate Project". The project aim is to prove the concept of crushed glass aggregate in the New Zealand context and pave the way for other New Zealand organisations to use excess recycled glass in this manner. This project is still awaiting sign off from Transit New Zealand. Click here to download full project details [pdf 1.0MB]. |
Scooter Vac
In 2010, at the Packaging Product Stewardship Meeting, the Minister Nick Smith noted that packaging is a very visible part of the waste stream and he receives a lot of correspondence about its role in our litter problem. The Forum funded a glass Scooter Vac trial in Palmerston North which was determined as very successful on picking up broken glass from roads and footpaths. There is now a need to promote to Local Authorities as an option to their current cleanup methods. |
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Tauranga
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Te Maunga Resource Recovery Park
In June 2012 improved and expanded facilities for the collection and handling of glass at the Te Maunga Resource Recovery Park was opened by the Minister for the Environment Hon. Amy Adams in Tauranga. The Forum contributed to this development by providing a grant to increase the holding capacity of separated glass and ensure a reduced contamination component. The Minister stressed her appreciation of the work done by the Forum and its commitment to Product Stewardship. |
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John Webber explaining to Hon. Amy Adams (Minister for the Environment) the critical importance of colour separation and elimination of contaminates when collected glass is to be remelted into new containers. |
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Wellington
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The Forum has worked with Transit New Zealand, Fulton Hogan and Higgins Contractors to establish a modified specification for road base course allowing for 5% glass. This provides ongoing opportunities to utilise locally that glass which cannot be supplied for the manufacture of new bottles and jars. |
Nelson
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Nelson City Council / Fulton HoganNelson City Council in co operation with Fulton Hogan have trialled crushing techniques to enable the inclusion of glass in roading projects as a result glass from a number of South Island locations is now being used for this purpose. |
Marlborough
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Spy Valley Wines - Glass Mulch in vineyard
Spy Valley Wines have purchased a glass crusher from America and are now crushing their own mulch in their vineyard - see www.spyvalleywine.co.nz. |
Ashburton
Wastebusters Trust
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Waste Busters received funds from the Glass Forum to facilitate the upgrade of glass storage bunkers, thereby ensuring colour separation and increased consignments for the remanufacturing of the material into new containers. |
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Amberley
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Hurunui RecyclingHurunui Recycling received a small grant to modify their crushing machine with the objective of producing a glass material for the development of building products. With a change in the structure of collection programmes this project has been abandoned. |
Christchurch
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Eco Central, who is a Glass Forum member, is also producing ground glass for replacement in sand blasting and a filtration medium. Trials have been completed with the New Zealand Sports Turf Institute to validate the use of glass as a medium in the construction of golf greens and as a topdressing medium. The material has also been successfully used as the drainage medium in sport fields. For an electronic copy of the reports, please email Donna Hellens . |
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The Glass Packaging Forum commissioned Eco Consult in Christchurch to report on glass as a very effective filtration Medium. If you wish to receive the report please email Donna at the Glass Packaging Forum – donna.glassforum@xtra.co.nz |
Dunedin
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Smart BottlesSmart Bottles received funding for this boutique voluntary container reuse programme in South Island. The Glass Packaging Forum is now able to monitor the effectiveness of a non mandatory container recovery system. ![]()
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Alexandra
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Wastebusters Central Otago received funding from the Glass Forum to have Fulton Hogan crush approx 1700 tonnes of glass into aggregate from their stockpile. Wastebusters also received a grant for a part payment of a Forkhoist to enable glass to be loaded directly into shipping containers so as to keep the colour separated and sent directly to OI New Zealand for the manufacturer of new containers. |
Shining Path has recently received funding to refine their crusher operation thereby producing a greater range of glass aggregate for a number of local uses. With the rationalisation of the Wastebusters operation this will provide further opportunities. Shining Path has also developed a 'back lit' glass panel allowing for illuminated paths. |
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Queenstown
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In this picturesque area the Department of Conservation has been utilising crushed glass as a base course for the construction of walking tracks. |
The Mobile Glass Crusher
Overview What Can the Crusher Do? Further Facts Mobile Crusher Launched Media - Radio/TV Interviews
Overview


In 2006 New Zealanders were doing so well at recycling glass that we were collecting more than was needed to make new glass containers. This was (and in some areas dependent upon collection methods still is) a particular problem for towns and communities in the South Island or some areas in the North Island. With much of the material collected in commingled programmes an alternative range of uses needed to be developed. What to do?
In 2007 the Glass Forum purchased a mobile glass crusher, which operates in conjunction with Silaca Crushers Ltd. The Glass Crusher was launched on the steps of Parliament in October 2007 and has been on tour around the country to crush glass at a reasonable cost, which has been able to be put to good use locally.
There are still plenty of uses around New Zealand for this glass such as in the sporting turf and golf bunkers; base course for roading; water filtration; agricultural mulch; erosion protection and sandblasting, but first the glass needs to be crushed.

Many places simply don't have the equipment locally to crush their glass so they are stockpiling it until they find something to do with it. New Zealanders and tourists don't want to see stockpiles of glass as they drive through our countryside particularly if it can be re-used now.
However O-I has built a new furnace which will be operational in October 2010 and will significantly alter demand for recycled glass with an additional 60,000 tonnes of quality glass per annum now required to negate the need to import the equivalent raw material. But as noted above, there are still areas of New Zealand which will still require the use of the crusher and any queries regarding the on-site crusher should be addressed to John Webber - john@glassforum.org.nz or an Application for Crushing can be made with the attached form.
What Can the Crusher Do?
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The glass crusher is a versatile machine producing versatile products. It's about the size of a skip and fits on the back of its own trailer so can be moved around the country. The glass crusher will munch its way through glass stockpiles and process the glass into to a range of different crush sizes. Different size glass can be used for different things. |
- The current glass material being used in road base is approximately 9.5mm
- Building slabs, foundations etc can use glass crushed to around 19mm; and
- Glass used in drainage projects can be from 9.5mm to 30mm.
Further Facts
Facts about the Glass Crusher [800KB]
Mobile Crusher Launched at Parliament
In order to assist in facilitating local councils to crush glass at a reasonable cost, the Forum has purchased a mobile crusher which will be operated in conjunction with Silaca Crushers Ltd and which can be hired by making an application.
The Hon. David Parker, Minister for the Environment officially launched the Glass Packaging Forum's Mobile Crusher at Parliament on the 9th October. This was preceded by a brief function supported by 6 Politicians, Mayor of Porirua, Jenny Brash and a further 40 invited guests.
After formal speeches from the Minister, Nandor Tanczos for the Green party, David Carter- Chairman for the Forum and Donald Nelson representing Lion Nathan (sponsor), children from Thorndon Primary School joined the party to watch the Minister officially christen the machine. The party was able to inspect the material produced by the machine in a range of particle sizes 9.5mm to 19mm and the Children were able to view the crusher for which a 'Naming Competition' was announced. All schools of New Zealand incorporating Years 1 - 8 will be invited to present possible names as suggested by the pupils and the successful school will receive a prize of $1000.00 to support a specific school activity.
The crusher itself will be travelling initially through the South Island processing those stockpiles of glass requiring crushing.
John Webber interview on Radio New Zealand
Facts about the Glass Crusher [800KB]
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![]() Hon. David Parker expressing his support glass crushing programme. |
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![]() Nandor Tanczos - Green Party Environmental spokesperson giving his assessment of the Forums initiative. |
![]() David Carter, Chairman of the Glass Packaging Forum outlines the Forum's establishment of the Glass Crushing programme. |
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![]() Donald Nelson (Lion Nathan - Sponsor of the crusher), David Parker (Minister for the Environment) and David Carter (Chairman of Glass Packaging Forum) discuss samples of the glass processed by the new crusher. |
![]() Nick Smith National Party spokesman for the Environment has his questions answered by Glass Packaging Forum's General Manager John Webber |
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![]() Donald Nelson representing Lion Nathan explains the crushing and glass making processes to the Thorndon School Children. |
CLASS RAP - NAME THE CRUSHER COMPETITION
In 2008, the Glass Packaging Forum held a nationwide school competition to 'name the crusher'.
The competition targeted school children aged 9-15 years who were expected to come up with a "rap" naming the crusher, saying why recycling is important and what is happening with glass in the area they live in. The competition was fronted by New Zealand rap icon - CHE FU.

Che wrote the hook lyrics giving students a "rap by numbers" template to work from.
The final rap, now called - DO THE KRUSHER - is a combination of the two winning rap group's lyrics (THE STORM - Fitzroy School - New Plymouth and WIRELESS -Fairfield School - Dunedin).
DO THE KRUSHER and the lyrics can be downloaded from the Class rap competition results page.
The KRUSHER now boasts a name from each winning school namely, THE GRIZZLY BEAR and SHATTER.
To view video clips of competition highlights from woah to go, go to the Class Rap '08 page.





























