Ann: Binding Offtake Agreement for Great White Concrete Additives, page-43

Just received a promo email from the Green Building Council of Australia (GBCA). - These are the types of initiatives/marketing that lead architects/engineers/builders and developers to consider sustainable construction materials within their next projects.

Embodied carbon masterclass

Reducing embodied carbon is an increasingly critical challenge for the builtenvironment, but how can we navigate the complex pathways to decarbonise thesupply chain?

In this masterclass our experts will help you understand the scale andsignificance of embodied carbon, examine drivers and barriers for reducing it,and explore innovative technologies and approaches to low embodied carbondesign thinking. Look at practical examples of materials selection, buildingdesign and project management.

Join your peers in this interactive session combining real-world case studies,informative panels, and small group discussions, and come prepared to shareexperiences, discuss challenges, and get your burning questions answered.

Key themes include

• methodologies, tools and data for measuring and benchmarking
• new innovations in low carbon materials and how to select materials
• effectively engaging the supply chain to ensure optimal decarbonised design
• learning from low embodied carbon projects

Also, specifically - The current GBCA score card awards Greenstar points for the following. (I believe the HRM provides both of these benefits to the end user.)

19.B.1.1: Portland Cement

Objective:

Up to 2 points are available where the Portland cement content in all concrete used in the project has been reduced by replacing it with supplementary cementitious materials.

• 1 point is available where the Portland cement content is reduced by 30%, measured by mass across all concrete used in the project compared to the reference case;; or
• 2 points are available where the Portland cement content is reduced by 40%, measured by mass across all concrete used in the project compared to the reference case.

Description:

If the cost of placed concrete (all costs) represents less than 1% of the project’s contract value this pathway cannot be claimed.

This credit addresses all new concrete used in the project including structural and non-structural uses. Concrete masonry, including core-filled is excluded.

Recycled concrete elements may be included in the Sustainable Products credit.

9.B.1.1 Reduced use of Portland Cement

Up to 2 points are available where the Portland cement content in all concrete used in the project has been reduced by replacing it with supplementary cementitious materials.

• 1 point is awarded where project teams can demonstrate that the Portland cement content is reduced by 30%, measured by mass across all concrete used in the project compared to the reference case; or
• 2 points are awarded where project teams can demonstrate that the Portland cement content is reduced by 40%, measured by mass across all concrete used in the project compared to the reference case.

19.B.1.3: Reduced Use of Aggregates

Objective:

0.5 point is available where either:

• At least 40% of coarse aggregate in the concrete is crushed slag aggregate or another alternative materials (measured by mass across all concrete mixes in the project), provided that use of such materials does not increase the use of Portland cement by over five kilograms per cubic meter of concrete;; or
• At least 25% of fine aggregate (sand) inputs in the concrete are manufactured sand or other alternative materials (measured by mass across all concrete mixes in the project), provided that use of such materials does not increase the use of Portland cement by over five kilograms per cubic meter of concrete.

Further to the above, ADN notes the following in the release;

"Andromeda has commissioned a detailed concrete decarbonisation study by expert consulting company Sustainable Future by Design to quantify the potential carbon footprint reductions offered by using Great White HRM™ and provide an Environmental Product Declaration."

The EPD is a third-party verification document that certifies the product/s to ISO14025 and international standards - This is important for international markets (US, Europe, etc) as the "green" building market is starting to demand EPD's across a wide spectrum and in some instances, it's even become legislated.