Articles, Guides & Reports

ACI Concrete Sustainability Forum VI took place in conjunction with the ACI Fall 2013 Convention. The Forum contained presentations on low carbon and negative-carbon concrete, sustainable cement, sustainable concrete structures, standards, Product Category Rules (PCRs) and Environmental Product Declarations (EPDs), and sustainability standardization in Korea. The presentations were followed by a summary of discussion points and concluding remarks.

Limestone calcined clay cement (LC3) is a blend of two materials that, when combined, have a synergetic effect. It allows the reduction of as much as half of the clinker content, resulting in cutting up to 40% of the CO2 emissions from the cement and concrete industry. The potential for the CO2 reduction depends on the conditions of calcination and the proximity of the clay.

The South Korean government has designated the cement-concrete industry as one of the key industries that must reduce carbon emissions to achieve carbon neutrality by 2050. The article outlines the present situation of South Korea’s policy implementation on carbon neutrality in the cement-concrete field and discusses technological items to realize carbon neutrality.