Chip Storage Pad


This project was commissioned by Marusumi Whangarei, a company exporting woodchip out of Northport’s deepwater port situated at the entrance to Whangarei Harbour in Northland. The project involved the construction of a 7000m2 reinforced concrete pad for the storage of woodchip prior to export and was an extension to a similar such facility.

  • Date: May 2010
  • Location: Northport deepwater port, Marsden Point
  • Client: Paneltech subcontracting to United Civil Construction

Marusumi required an expansion to its existing woodchip storage area at its Marsden Point port facility, involving a 7000m2 concrete pour.

The task would be made more challenging by the need to undertake concrete pours at night in order to minimise thermal cracking issues. The pour, as well as being on a very large scale, involved high specification concrete with heavy reinforcing that needed to be integrated into an existing pad. The subcontract value was set at $970,000.

With experience in similarly challenging concrete pours, Paneltech understood the complexities of such a large scale concrete pour. To that end, Paneltech poured and finished the concrete during the night to reduce thermal cracking issues and guarantee a quality finish to the 150mm deep, heavily reinforced 7000m2 slab.

Paneltech also constructed 250m of concrete retaining walls of various heights on site and repairs to the existing concrete pad for Marusumi.

The additional woodchip storage area has allowed Marusumi  to expand its woodchip stores at Northport. The concrete pad was finished to the highest quality, and the project was delivered on time and on budget.


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