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2015 SUSTAINABILITY AWARDS

EXCELLENCE IN CONCRETE INNOVATION 
ALLIED CONCRETE for
Environmental Product Declaration (EPD)

01 Oct 2015

Allied Concrete applied for an Environmental Product Declaration (or EPD) in 2014 based on analysis of its 2013 production.

Using Life Cycle Assessment tools courtesy of Holcim New Zealand’s membership of the World Business Council for Sustainable Development, a huge data collection process was undertaken across energy and material inputs for a range of concrete strengths.

The system boundary declared in the EPD includes raw material supply, transport and manufacturing up to the batching plant gate. This covered:

  • Cement manufacturing
  • Admixture production & delivery
  • Cement distribution by sea & land transport
  • Water consumption
  • Aggregate production
  • Waste volumes generated & associated disposal costs
  • Aggregate delivery to the plants
  • Energy use at the plants (electrical, fossil fuel)

The declared unit is 1 cubic metre of pump and standard grade concrete from 17.5 to 50 MPa produced in accordance to NZS 3104. The data collection process took 10 months to complete, with BRANZ managing document preparation, and Studio Fieschi & Soci of Italy as EPD verifier.

The completion of possibly the first EPD in Australasia for ready mixed concrete has enabled Allied Concrete to benchmark its environmental performance and examine potential efficiencies.