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Low-carbon concrete supports environment-friendly construction

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Chryso’s EnviroMix helps contractors achieve sustainability goals

18th July 2025

     

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A solution that allows for the use of low-carbon concrete while maintaining early strength performance helps to reduce carbon emissions while maintaining timeous project delivery.

Chryso’s EnviroMix range is designed to support concrete mixes with high supplementary cementitious materials (SCM) content – such as fly ash or ground granulated blast furnace slag – to ensure that early strength targets are achieved. This helps ensure consistent performance, faster formwork removal, quicker demoulding, and improved production efficiency, without compromising sustainability goals.

“Reducing the carbon footprint of buildings is no longer optional – it is becoming a priority for developers and specifiers,” says Chryso GM technical and product support management: Africa Patrick Flannigan. “But traditional methods for lowering embodied carbon, such as replacing ordinary Portland cement with SCMs, typically slow down early strength development.”

This trade-off can cause costly delays on site as slower strength gain means formwork and scaffolding must remain in place longer. It also limits turnaround time in precast manufacturing, where production speed is key to profitability.

“With EnviroMix, sustainable concrete no longer means a compromise on productivity or quality,” says Flannigan. “It is a vital step toward greener construction – made practical, reliable and economically viable.”



 

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