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Glebe Island Concrete Batching Plant

Glebe Island Concrete Batching Plant

Glebe Island Concrete Batching Plant

Overview of the Proposed Development

Hanson seeks to develop a new aggregate handling facility and concrete batching plant at Glebe Island. Accordingly, this application seeks approval for construction of:

  • a concrete batching plant with the capacity to produce up to 1 million cubic metres of concrete per annum; and

  • a new aggregate handling facility with a shipping terminal at GLB1 that will receive and handle aggregates delivered by ship.

 

The proposed plant will serve two purposes:

 

  • To act as a shipping facility that will support a number of Hanson (and Hymix) concrete batching plants by improving the delivery of aggregates into the city centre and surrounds; and

  • To operate as a concrete batching plant and meet demand from future development and infrastructure projects in the CBD and inner city suburbs.

  • The concrete batching plant will be supported by new aggregate shipping terminal facilities with the capacity to manage up to 1 million tonnes of concrete aggregates per annum delivered by ship primarily from the Hanson Bass Point Quarry and other facilities if deemed viable. 

The components proposed include:


 

  • Cement Silos;

  • Aggregate Silos;

  • Sand Silos;

  • Water Tanks;

  • Weigh Hoppers;

  • Slump Stand;

  • Conveyors;

  • Truck Parking;

  • Car Parking;

  • Weigh Bridges;

  • Water Tanks;

  • Building Enclosure; and

  • Ancillary offices and staff areas.


Site Location

Glebe Island is located within the Inner West Council Local Government Area, surrounded by White Bay (north), Johnston Bay (east) and Rozelle Bay (south). Glebe Island connects to mainland areas of Rozelle to its west.

 

Glebe Island is one of the last remaining industrial port facilities within 2km of Sydney City. The port has historically been used for car imports and in the transportation of bulk construction materials such as cement, gypsum and sand. Glebe Island currently functions as a deep water port for common user berths, dry bulk imports and cruise ships. White Bay and Glebe Island are the only deep water wharves west of Sydney Harbour Bridge.

 

How can I have my say?

The Environmental Impact Statement associated with the proposed development is being exhibited on the Department of Planning’s Major Projects Website (www.majorprojects.planning.nsw.gov.au) for 5 weeks, from Wednesday 11 April 2018 and concluding on Tuesday 15 May 2018.

 

The Department of Planning will accept written submissions during this period.

Barrow Island

Barrow Island

Industrial

Dampier, WA

Barrow Island

Industrial

Dampier, WA

Chevron Australia

2011

Project Description

Barrow Island Barge Berth Project, developed by Chevron Australia, is currently the world’s largest industrial project, with an estimated value of $60 billion. The project will develop the Greater Gorgon Area gas fields and includes the construction of a domestic gas plant and a 15 million tonne per annum Liquefield Natural Gas (LNG) plant on Barrow Island. Hanson’s Karratha plant supplied 2800 cubic metres of concrete for the wharf’s landing berth and quarantine truck-washing area.

Challenges and Solutions

Chevron’s stringent engineering standards, combined with a harsh environment characterised by exposure to erosive sea-conditions and daily ambient temperatures of over 45° C, have demanded a Best Team response from Karratha.

‘Firstly, our production and technical teams worked together to develop a S50 Marine mix that would satisfy the performance requirements specified by Chevron and their contracted engineers from Worley Parsons’, explained Walter Roemer, Karratha Plant Manager.

‘During the trial-mix process, the initial focus was durability and shrinkage. Waterproofing agents were added, as the six-metre tide variance at the wharf meant the concrete would be subject to extreme sea conditions, including large swells during cyclone periods. The agents created a non-soluble crystalline structure to permanently seal the concrete against the penetration of sea water’, he added. Shrinkage agents ensured the mix achieved satisfactory microstrain results at 56 days, while super-plasticisers were added to achieve the 150 mm slump required for specified levels of pumpability and workability. After confirming the mix design, the Karratha team launched an exhaustive testing regime that continues today.

As part of the testing, mix samples are taken every 50 cubic metres; shrinkage testing is conducted every 150 cubic metres to help avoid structural cracking and joint-stability problems, and retarder dosage rates are carefully monitored for the duration of the project. ‘This is required due to the 40-minute travel time between the concrete plant and the site’, explained Walter.

As daily temperatures at the project and at Hanson’s Karratha plant rocket beyond 45°C, ensuring the concrete remains within required temperature levels is another challenge. Major pours ranging from 50 to 300 cubic metres were conducted at night, starting at 1.00 am when temperatures drop below 35°C. Shade sails were installed over all aggregate bins at the plant, and temperatures were further reduced by periodically spraying the aggregates with water to achieve an acceptable Surface Saturated State (SSS). ‘Collectively, these measures ensured that all 2800 cubic metres of concrete supplied stayed within the specified acceptable temperature range, and avoided premature setting times’, said Walter. Pre-pour meetings were also conducted periodically between Hanson, and Chevron representatives and the contracted Worley Parsons engineers. Plant meetings addressed all production issues before large pours.

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