Ecrete™ Calculator
Discover the carbon reduction potential of your project with our Ecrete™ Calculator, find out below your recommended Ecrete™ mix and GWP carbon figure.
Ecrete calculator form
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How the Ecrete™ Calculator Works
The Ecrete™ Calculator uses project inputs such as volume, location, and strength requirements to recommend an optimised concrete mix.
It then calculates:
- Estimated GWP (kg CO₂ per m³)
- Total project carbon reduction
- Equivalent environmental impact (e.g. trees planted)
This allows you to compare standard concrete with lower-carbon Ecrete™ options and better understand the environmental impact of your material choices.
When to Use the Calculator
The calculator is designed to support early-stage planning and specification. Whether you’re a designer, architect, or contractor, it provides a quick way to:
- Explore lower-carbon concrete options
- Compare different mix scenarios
- Support sustainability targets and reporting
- Inform conversations with project stakeholders
Understanding Your Results
The results give you an indication of how your selected mix performs in terms of embodied carbon.
While the calculator provides a reliable estimate, final mix design and performance requirements will vary depending on project conditions. Our technical team can work with you to refine your specification and ensure the best outcome for your project.
Take the Next Step
Ready to reduce your project’s carbon footprint?
Talk to our team or request a project-specific Ecrete™ mix recommendation today.
Other Calculators & Tools
Concrete Volume Calculator
Use our online concrete calculator to work out how much concrete you need for your next project!
Request an EPD On-Demand
Get accurate, third-party verified, embodied carbon data tailored to your project.
DesignHub
Our services are designed specifically for specifiers who need a streamlined, efficient process for designing concrete foundations.
Frequently asked questions
What is low-carbon concrete?
Low-carbon concrete is designed to reduce carbon emissions by incorporating various methods, including the use of supplementary cementitious materials (SCMs), lower-carbon cement made in New Zealand, sustainable aggregate sourcing, and other initiatives.
How does low-carbon concrete compare to traditional concrete in performance?
Properly designed low-carbon mixes offer comparable strength, durability, and workability to traditional concrete while reducing environmental impact.
How much CO₂ reduction can be achieved with low-carbon concrete?
Depending on the mix, CO₂ reductions of 20-80% can be achieved compared to standard concrete.
Does low-carbon concrete contribute to green building certifications?
Yes, using low-carbon concrete can help projects achieve Green Star, Homestar, and LEED certification points due to reduced embodied carbon.
Can low-carbon concrete be used for all types of construction?
Yes, it can. We first assess the structural application and program performance before optimising the carbon footprint of your project. Allied Concrete provides expert guidance to ensure the best fit for each project.
Does low-carbon concrete take longer to cure?
Yes and no. The curing time depends on several factors, with raw material availability being a key one.
In the South Island, achieving lower-carbon outcomes often requires cement substitutions. Depending on the time of year, these substitutions may slightly impact the initial setting time. In the North Island, this is less likely due to the availability of low-carbon cements.
Our Plant Engineers can optimise curing times based on your specific construction circumstances.
How can I ensure my project maximises sustainability benefits?
Consider the construction sequence, the overall project timeline, and where program requirements or specific finish types are necessary.
For example, foundations and substructures can typically have lower carbon footprints for their respective grade, whereas elements requiring a quick formwork turnaround e.g., precast elements, are more sensitive to carbon optimisation.
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