IN THE MIX - THE LATEST CONCRETE NEWS

2012 NZRMCA AWARDS - TIME TO CELEBRATE SUCCESS 07 Dec 2012

The 2012 NZRMCA Awards were presented during the New Zealand Concrete Conference formal dinner held at Claudelands Conference and Exhibition Centre in Hamilton on 12 October.

The ceremony, presided over by the very popular Te Radar, included the Technical Excellence Award, the Extra Distance Award, and the Plant Audit Scheme Supreme Award.

As with previous years the judging panel, made up of David Barnard (NZRMCA), Sheldon Bruce (NZ Concrete Society) and Adam Leach (CCANZ), was faced with a task made extremely difficult by a range of high calibre entries that demonstrated the expertise, determination and passion of those who work in the ready mixed concrete industry.

Both the Extra Distance and Technical Excellence Awards were given in recognition of a ready mixed concrete project or initiative that demands uncompromising commitment to customer satisfaction and calls for innovative solutions respectively. The challenges associated with each entry, and the solutions to overcome those challenges, are evaluated to determine the award winner.

PLANT AUDIT SCHEME SUPREME AWARD
Counties Ready Mix - Drury Plant

Over an extended period of time the Drury plant has demonstrated continuing excellence in performing to NZS3104 Specification for Concrete Production.

The plant, chosen from 26 other plants achieving 100% compliance, is an example to all other ready mixed concrete producers throughout New Zealand.

Concrete plants across the country are assessed for compliance over a two year period. This includes six testing frequency reports, two annual reviews of results and one physical audit review of the plant.

Quality control was the primary reason for the establishment of New Zealand Ready Mixed Concrete Association and the development of the Plant Audit Scheme over 40 years ago, and the audit scheme remains the cornerstone of the Association. The plants listed below all achieved 100% compliance, from which Counties Ready Mix - Drury Plant was selected.

Zone 1 – South Island
Allied Nelson
Allied Christchurch
Allied Rangiora
Allied Culverdon
Allied Renwick
Firth Amberley
Firth Geraldine
Higgins Richmond
 

Zone 2 - Wellington
Allied New Plymouth
Allied Palmerston North
Allied Wanganui
Higgins Porirua
Higgins Palmerston North
Mobile Concrete
Terry’s Concrete, Te Horo
 

Zone 3 – Northland/Auckland
Allied Penrose
Atlas Ruakaka
Atlas Kumeu
Atlas Takapuna
Atlas Panmure
Counties Drury
Holcim Avondale
Stevenson Penrose
Zone 4 – Central North Island
Allied Rotorua
Allied Tairua
Allied Whitianga

 

EXTRA DISTANCE AWARD – WINNER
Allied Concrete Ltd for the Newmarket Viaduct Replacement

As one of the most complex and visible construction projects undertaken in New Zealand, the Newmarket Viaduct Replacement impacts 215,000 road users everyday on the busiest stretch of motorway in the country.

The NGA Newmarket team was formed to deliver the project for the NZ Transport Agency. In 2008 it took on the challenge of pioneering a world first; constructing the new - while deconstructing the old - 690m metre long Newmarket Viaduct, 20m above ground level.

Allied Concrete was selected as the sole concrete supplier for the new Newmarket Viaduct, which was begun in 2009 and completed in January 2012. Allied Concrete was required to supply more than 42,000m3 (8,500 truck loads) of concrete as well as grout and shotcrete for structures including pad foundations, pier bases and heads, barriers, piles and 468 precast viaduct segments.

Judges’ Comments
The manner with which Allied Concrete worked seamlessly as part of the wider project team to solve a range of technical and logistical challenges was impressive.

The concrete volumes involved in replacing the viaduct were significant.

The mix designs required to overcome issues in precasting the structure’s segments and stitching them together, were complex.

In addition, by managing hazardous working conditions with difficult site access and tight timeframes, Allied Concrete have more than exceeded expectations of reliability on a high-profile project subjected to media and public scrutiny.

TECHNICAL EXCELLENCE AWARD – WINNER
Firth Industries Ltd for the Te Mihi Geothermal Power Station

After a brief tender and negotiation period Firth Industries was awarded the ready mixed concrete supply to the largest geothermal power project in New Zealand’s history.

The $750 million, 166 MW twin turbine project was designed and built by a consortium of companies that included McConnell Dowell, SNC-Lavalin and Parsons Brinckerhoff (together known as MSP JV). The power station owner Contact Energy intends to use the new generation capacity to replace the 53 year old Wairakei power station.

Over a very busy 12 months, Firth Industries transformed its small rural plant in to a modern, high output facility to produce in excess of 18,000m3 of extremely high spec concrete. With significant pours requiring up to 5 testing and quality control personnel, and operating within tight tolerances, this project placed a premium on technical excellence.

Judges’ Comments
The scale and scope of this infrastructure project immediately elevates its significance, which together with the demands that the geothermal environment placed on concrete design and production, made Firth Industries’ achievements all the more commendable.

Upgrading a small plant in a short timeframe to accommodate a dramatic increase in concrete output, as well as controlling a large range of sophisticated mix designs specific to the site’s unique durability challenges, were key to the project’s success.

Enhanced batching accuracy and rigorous testing regimes further demonstrate an uncompromising awareness of the importance of concrete quality and in turn a strong commitment to a technical excellence that warrants recognition.

TECHNICAL EXCELLENCE AWARD – HIGHLY COMMENDED
Allied Concrete Ltd for the Tri-Column at AUT Business School

As part of the new learning precinct building at AUT City Campus (located at the corner of Mayoral Drive and Governor Fitzroy Place), the tri-column is a unique piece of architectural infrastructure at the leading edge of construction technology in New Zealand.

The upside down triangle (tri-column) commissioned by AUT University, was designed by Beca Consultants and Jasmax Architects, while Dominion Constructors (sub-contractors to Fletcher Construction) were responsible for the build.

The tri-column contract specification requested a F6 finish, without the appearance of construction joints with minimum air bubbles. Dominion Constructors spent a couple of month’s trialling different concrete suppliers to complete the pour as per requirement, finally selecting Allied Concrete as the preferred supplier.

Judges’ Comments
With such a visible piece of construction, intended to draw attention to its own unique form and finish, there was little room for error in concrete mix design and construction practices.

Allied Concrete has demonstrated advanced technical understanding of self-compacting concrete by adapting the material’s properties to achieve full compaction and combat potential mix segregation in order to attain the surface finish specified.

Working closely with its project partners in areas such as formwork design, Allied Concrete has helped produce what will surely become an iconic structure on campus. 

Taken from the December 2012 NZRMCA Newsletter