C-Crete Technologies, a materials science company that develops cement-free concretes, has undertaken a world first pour of zeolite-based concrete.

Zeolite is a naturally occurring non-carbonate rock, primarily made of silicon and aluminium, that produces almost no carbon dioxide during the manufacturing process.

The 20-ton pour in Seattle, Washington last month substituted Ordinary Portland Cement with zeolite as the binder.

Ph.D., Founder, and President of C-Crete Technologies Rouzbeh Savary believed thus is an important step in the quest to “revolutionise” the construction industry.

“This landmark use of the product epitomizes C-Crete's commitment to reshaping the industry through environmentally conscious innovations. By tapping into various natural rocks like zeolite, and converting them into cementitious binders, we're forging a path toward truly sustainable infrastructure."

C-Crete's zeolite-based concrete has more than 5,000 psi in compressive strength.

It flows and pumps like conventional concrete, and meets the industry standards set by ASTM International for mechanical and durability properties, such as expansion and freeze-thaw resistance.

The zeolite rock for the project was sourced from Zeolite Composites LLC.