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JIM MACDONALD MEMORIAL LECTURE 2007

The delay in announcing the guest presenter for the 2006 Jim Macdonald Memorial Lecture Tour was worth the wait.

In March 2007, Ian Rodger of Metso Minerals used a small window of opportunity to secure a speaker from America to provide the NZ Quarrying Industry with a fantastic insight to quarrying operations and issues in the USA.

Rodgers & Wilson

Jennifer Joy Wilson (photographed (left) at the Christchurch Branch meeting with Metso Minerals General Manager, Ian Rodger) is the President and CEO of the National Stone, Sand and Gravel Association (NSSGA).

She presented her discussion paper "The Aggregate Business in the USA" to each of five NZ Branches - Auckland, Waikato/Bay of Plenty, Wellington, Christchurch, Otago

A summary of the tour can be found in the NZIOQ Newsletter March 2007.

Slides from her presentation are now available. .

We publicly thank all sponsors who helped make the tour a success.

NZ CONFERENCE PAPERS

Some of the papers / presentations presented at the IOQ/AQA Conference are now available in Powerpoint format.
As many of these are quite large, we recommend they be downloaded to your own computer and viewed locally rather than attempting to view on screen.

Click on paper to view:

Author	Paper Title and Abstract
Papers presented at Queenstown, July 2003:
George Munro, OSH Service, Dept of Labour, Wellington	OSH 2002 Accident Report
Bob Officer, Quality Manager, Allied Concrete, Invercargill	What Concrete Producers Want
Ian Rodger, General Manager, Metso Minerals (NZ) Ltd	Brand To Brand Presentation – Barmac History
Philipa Lamb, Technical Manager, Red Bull Powder Company	Electronic vs Pyrotechnic Detonators
Greg Slaughter, Environmental Manager, Fulton Hogan Ltd	Environmental Management of Dust
Jennie Newick, ExITO	Modern Apprenticeships
Mr I John, Komatsu, Australia	Market Demands for Technology Improvements on Earth Moving Equipment
Murray Francis, Director, Road Metals Ltd, Oamaru	Mobile Crushing in Remote Areas
John Hopkins, President, Institute of Quarrying, UK	Needingworth Quarry Wetland Project
Eric Souchon, President, Aggregate & Quarry Association	Quarry Safe
Joanna Towler Transit New Zealand	Transit New Zealand Winter Maintenance Issues and C22 Development
Papers presented at Waitangi, July 2005:
Author	Paper Title and Abstract
Hon Harry Duynhoven	Issues facing the quarrying industry - training, modern apprenticeships, growth and infrastructure, sustainability, and Crown Minerals Group restructuring
Andrew Dronjak	Iceland – Land of Light and Darkness (As winner of the IOQ Caterpillar Award 2003, Andrew presents an insight into this unique land)
Neville Cook	”Current and Future Trends in Diesel Engine Oil Technology"
Tom Reece	”ExITO Report 2004”
Dr Greg Arnold	Performance Tests for Selecting Aggregate for Roads”
Jeff Waters	Latest Developments in Skid Resistance, PSV and Synthetic Aggregate”
Greg Brown & Reihana Chadwick Bluescope Steel	“Taharoa Minesite Rehabilitation" The minesite is located on the West Coast of the North Island right on the Tasman Sea. It is very exposed and isolated which makes the rehabilitation extremely difficult. When mining was completed in the Southern Region of the lease in 2000, a very large area was left to rehab. Large amounts of time and money was spent stabilising the sand and planting grasses prior to handing back to the land owners. Plant relocation (moving items of up to 1000 tonnes) is discussed - and its effect on the rehabilation process.
Ian Rodger Les Ward and David McCaffrey Metso Minerals (NZ)	“Manufacturing Sand” The lack of natural resources available has dictated to our industry that we need to manufacture sand that meets the needs of the industries that use it. Sand specification for Portland Cement and Asphalt Concrete is not just “minus 6mm” - the process of manufacturing sand from coarse aggregates involves a variety of processes. What alternative processes there are available? The paper is a guide through the process from the crushing process to final water treatment.
John Walrond Quarries Inspector OSH	“2004 Health and Safety Summary" Summary of NZ Quarry Accidents Also ideas for consideration - Developing a culture in which short cuts are unacceptable requires: • effective two way communication • clear concise workable rules and procedure • and an acceptance by everyone that safety is their responsibility.
Terry Shannon Spire Consulting Ltd	“What to Improve First? - A simple technique to quantify what’s important to your business" Improving and changing industrial and business processes is a difficult process that needs a clear incentive to be successful. Knowing what is the best for the business, what to do first compounds the problem. Key factors commonly present in improvement situations are discussed for both operational and business processes. Shows how simple but effective methods can be used to develop a high-level benefit estimates at an early stage in the project. A study of a Quarry is used to illustrate how the technique could be used and simple utilisation of information achieved. The technique can build consensus, and keep the team focused on the agreed objectives. Techniques show how individual businesses, large and small, can use the data and knowledge of their businesses to effect profitability improvements.
Mike B. O’Connor Ruakura Research Centre (AgResearch)	“Lime Research in Northland over the past 10-15 years" Overview of field trials on lime. Includes research on optimum pH on hill country vs flats, seasonal responses to lime, pH effects on phosphate uptake. . . more
Anthony Hartcher Susannah Osborne Technical Services Engineer Orica Mining Services	“Blasting – Anything goes with Electronic Detonators” This paper reviews some of the recent New Zealand quarry market success which have evolved through the implementation of blasting IP and the electronic detonator. Whether it be vibration management, increased fragmentation, final wall control or management of neighbours perception, the flexibility of timing and developed intellectual property is taking drill and blast operations to a higher level.
Andrew Crane Equipment Product Manager Cable Price	"Latest Hitachi Mining Equipment (EX 3600-5)"
Gordon Laing and Arsini Hanna Quarry Manager, Puketutu Island Quarry, and Northern Business Unit Environmental Coordinator Winstone Aggregates	“What's Left?” Quarries around Auckland have reached or are reaching the end of their operating lives, and need to be rehabilitated. Currently, the use of cleanfill sites throughout New Zealand has significantly increased, because they are considered to be a low cost option for the disposal of inert waste. Puketutu Island Quarry is one of a very few operating quarries left close to the Auckland urban area. At Puketutu Island, Winstone Aggregates has been involved in quarrying (Basalt and Scoria) and cleanfilling activities (Rehabilitation) for the last 15 years. The cleanfilling operation has allowed Winstone Aggregates to formulate the most practical and efficient methods, which avoid, remedy and mitigate adverse effects on the environment. This paper outlines managing cleanfill activities, as well as quarrying, at Puketutu Island and the beneficial use of cleanfilling, as a good way of land rehabilitation

JIM MACDONALD - DSO, DSC, TWO BARS and a BARMAC

09/11/2004
As we complete another successful lecture tour to mark Jim Macdonald and his invention “The Barmac” I thought it important to look back at who Jim was and to also introduce this year’s host speaker. Ian Rodger, Manager of Metso Minerals. Firstly I want to thank Ian and Metso Minerals who make the lecture tour possible.

Jim Macdonald, 1921-1982

Jim Macdonald was born in Wellington in 1921 but with the outbreak of war on September 3, 1939 as a Royal Naval Volunteer Jim was transferred to the UK and an officers training course at the shore base HMS King Alfred in Kent where he passed top of the class. Because of this he was offered a choice as to where he would serve. Fast motor torpedo boats it was for Jim and by 1941 at the age of 19, he was promoted to midshipman.

For his distinguished war record for actions against the enemy in the North Sea he was awarded the DSO, DSC, and two bars along with a citation from the Royal Humane Society for saving life at sea. A leader in every sense of the word, he became New Zealand’s most decorated naval officer and retired at the end of the war in his early 20’s, with the rank of Lieutenant Commander.

While serving with the navy he invented a torpedo sight which married the speed and direction of the torpedo and the speed and direction of the target. This became used throughout the MTB flotilla and is now on display at the Royal NZ Navy Museum in Devonport.

In 1946 Jim joined the Wellington City Council and was responsible for the Council's Kiwi Point Quarry operation in Ngaraunga. To improve its output a new device, worked out in his children’s sand pit, named the Macdonald Impactor was invented. This however could not of been done without the assistance and support of Gib Stuart and Bryan Bartley.

Jim unfortunately died in 1982 as the result of a car accident.

The original BarMac prototype now holds pride of place on display at the entrance to Kiwi Point Quarry.

2004 Guest Speaker – Ian Rodger

This year’s guest speaker was Ian Rodger and his paper reflects the interest that the industry has in the development and history of Jim Macdonald’s invention.

Titled “Brand to Brand” Ian explains why Barmacs have been installed on North Sea Drilling rigs and why diamond mines in South Africa use Barmacs to increase the value of their product.

Ian has been married to Val for 36 years, has two sons and is currently the manager of Metso Minerals whose sponsorship and support make this bi-annual lecture possible.

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Reports

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Papers presented at Queenstown, July 2003:

Papers presented at Waitangi, July 2005: