Sunrise Resources said its CS Natural Pozzolan has been conditionally approved by the California Department of Transport (Caltrans) for use in the state’s infrastructure projects.
CS Natural Pozzolan is now on the Caltrans list of approved materials for cementitious materials for use in concrete, said Sunrise.
Caltrans is the government body responsible for the award of state-funded infrastructure construction projects in California.
Patrick Cheetham, Sunrise's executive chairman, added: "I am delighted that Caltrans has conditionally approved the CS Natural Pozzolan. This is good news for the CS Project.
“Whilst we were confident that the CS Natural Pozzolan would pass Caltrans's testing procedures, this is an important step forward as many concrete specifiers look to this list as an independent endorsement when specifying for a wider range of non-Caltrans projects."