US: Terra CO2 has begun full-scale trial production of concrete without cement using its novel supplementary cementitious material, Opus Zero. The SCM consists of ground, heated glass spheres made from silicate rock.
Chief scientific officer DJ Lake said “Opus Zero represents a pivotal moment in our journey towards sustainable cement and concrete. Of the very few non-carbon-capture solutions to decarbonising cement, with none proven at scale, Opus Zero stands above the rest for being inherently cost-efficient, practical and scalable for the industry. Today, Opus Zero represents a zero-clinker cement that can be produced with abundant feedstock around the world, does not require opening new mines to scale, and aims to seamlessly fold into the current industry landscape.”
