Australia: Beyond Zero Emissions (BZE) and the Infrastructure Sustainability Council of Australia (ISCA) are working together to encourage the use of low carbon cements in infrastructure projects. This follows ISCA’s Infrastructure Sustainability (IS) rating scheme and the release of the BZE Rethinking Cement report that presents a roadmap on how Australia could develop the world’s first zero carbon cement industry.
ISCA’s Infrastructure Sustainability Rating scheme will introduce two new incentives aligned with BZE’s approach: a new Innovation Challenge will encourage greater use of low-carbon content within Portland cement; and an updated Infrastructure Sustainability Materials Calculator for ISv2.0 will award points for the use of geopolymers. ISCA already rewards projects for replacing a proportion of Portland cement clinker with alternatives such as fly ash. Their analysis indicates that IS rated projects have achieved an average of 21 - 25% Portland replacement.