The concrete industry has been getting beat up for the past decade over the large carbon footprint of cement, and it’s true that cement manufacturing releases a significant amount of carbon dioxide into the environment. So if cement manufacturers come up with a way to improve concrete sustainability with no negative impacts on constructibility, performance, or durability, why would we resist using it? We in the construction industry are justifiably cautious with new materials, but the evidence is in and there is no reason not to adopt portland-limestone cements (PLC) with open arms.
One of the strongest advocates for PLC over the past few years has been Tim Cost, senior technical service engineer with Holcim (US). The Concrete Producer caught up with Cost recently to learn more about PLC. READ MORE