Buzzi Unicem USA’s portland-limestone cement (PLC) Type IL is formulated with a higher limestone content and manufactured with less embodied energy than ordinary portland cement (OPC). Buzzi Unicem USA aims to produce PLC Type IL that meets or exceeds the performance requirements of ASTM C150 Standard Specification for Portland Cement Types I and II. Buzzi Unicem USA’s PLC offers its customers the ability to produce concrete with superior plastic and hardened properties while reducing its impact on global climate change.