EPD Australasia

Modelling supplementary cementitious materials in EPDs

Guidance on input data and modelling for the impact of SCMs within EPDs

This webinar/event was held on: September 3, 2025


EPD Australasia shared guidance on input data and modelling for the impact of supplementary cementitious materials (SCMs) within Environmental Product Declarations (EPDs), in line with the updated Product Category Rules for Construction Products.

The webinar was introduced by Cyril Giraud, Chair of EPD Australasia and featured presentations by:

  • Kelly Taylor – CEO, EPD Australasia
  • Andrew D. Moore – Technical Advisor, EPD Australasia and Chair of EPD Australasia’s Technical Advisory Group
  • Rob Rouwette – Co-chair Construction Product PCR v2.0, member of EPD International’s Technical Committee, and an EPD Australasia-approved verifier

The session was especially relevant for:

  • Concrete and cement manufacturers
  • EPD process certified companies
  • EPD process certifiers and verifiers
  • EPD consultants

What was covered

  • Background on what is driving the changes to include impacts of SCMs such as fly ash, blast furnace slag and silica fume
  • Co-product allocation and types of acceptable data
  • Draft technical guidance, including guidance on economic allocation
  • A live Q&A session addressing attendee questions

Draft technical guidance will be circulated for comment and will be published at EPD Australasia Technical Guidance when finalised.

Thank you to everyone who joined us live. If you missed the session, a recording of the webinar is now available to watch at your convenience. You can also download the presentation slides.