Geology Talk

Council goes mobile for road construction program

Historically, the council works department has called in subcontractors to process materials in its many borrow pits, to provide the necessary roadbase type materials for construction and maintenance. In 2001 the council decided to move into the crushing of these materials at their own sources to save construction time. This was an innovative approach to the accepted practice of delivering raw materials to site and grid rolling on the road. The improvement in this process reduced the amount of construction time on the road and impact on motorists, and necessitated the purchase of a primary jaw.

Over the next few years, the selected crusher was found wanting and the council decided to go to the market for a suitable replacement. Four major suppliers were considered for their safety standards, operational flexibility and value for money for Goyder ratepayers. In 2006 Goyder Council purchased a Metso LT1110 impact crusher.

Council works manager Lee Wallis said a Metso crusher was chosen “mainly due to its inherent safety features being built into the design. Its variability of production settings also provided the ability to manufacture more products to suit different applications”.

Goyder has more than 80 gravel/borrow sites across its almost 7000km2 area, with a wide range of rock types.

“We have limestone, sandstones, dolomites and so on,” Wallis said. “The LT1110 allows us to move easily between our various sites and have specific crusher settings for each individual source, to meet our product and application requirements. It is also imperative to have an informed and understanding group of elected members to support your vision and a dedicated crew of crushing operators to deliver it.”

Wallis has worked his way up the ranks of the Goyder Council works department over 16 years, so has been part of this evolution. In 2013, to assist the LT1110 operations, the Metso relationship continued with the purchase of a CT3.2 stacker. This purchase included standardised equipment and parts.

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Goyder Council recently started its annual sealed road construction program, and during the forward planning it was decided that rather than subcontract out the final base course layers material production, the council would carry out a trial to self-perform this portion of the work. The primary aims were to reduce costs to the ratepayers, provide an increased scope of work for existing council staff and increase utilisation of existing equipment.

To facilitate this, a two-deck screen would be required to complement the Metso LT1110 and CT3.2 stacker. Given the positive performance of the Metso equipment to date, Goyder Council contacted Metso’s mobile distributor Tutt Bryant Equipment (TBE) for a screen.

TBE’s Adelaide branch service manager Derek Sankey engaged the TBE Metso account manager Shaun den-Bakker to facilitate this short term hire.

Sankey had been in close contact with Goyder over many years, supporting the servicing requirements of Metso products and other machinery. The Adelaide branch delivered the LTS1000 screen to integrate with the council’s other Metso equipment in November 2015. The crushing and screening team safely delivered the  required 26,000 tonnes well ahead of schedule, to the required standard and without incident. The LTS1000 performed in line with the other Metso equipment and the team were “very impressed”.

Wallis said the whole team contributed to the success of this short term contract. The TBE branch supported the LTS1000 product and his own production team ensured the LTS1000 was operated correctly and maintained to optimise production. 

Source: Tutt Bryant Equipment

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