Understanding Portland Limestone Cement’s Role in Precast-prestress Applications for a Lower Footprint-Understanding Portland Limestone Cement’s Role in Precast Handout

Understanding Portland Limestone Cement’s Role in Precast Handout

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The document is a presentation on understanding the role of Portland limestone cement (PLC) in precast-prestress applications for a lower carbon footprint. The speakers in the presentation are Jay Whitt, a Technical Services Engineer, and Claire Nowasell, a Technical Service Engineer for Lehigh Cement.<br /><br />The presentation highlights the motivation for using low embodied carbon cement to reduce environmental impact. It discusses sustainability in the building industry, including LEED certification and the reduction of operational and embodied carbon emissions.<br /><br />The role of PLC in precast-prestress applications is explained, focusing on its composition, manufacturing process, and performance characteristics. The presentation emphasizes the lower clinker to cement ratio and the innovative engineered product line that provides strength and durability while reducing the carbon footprint.<br /><br />The impacts of PLC on daily production in precast batch plants are discussed, comparing the performance of Type IL blended cement with Type I cement. The presentation also explores the efficiency of cement and supplementary cementitious materials (SCM) in reducing carbon emissions. It provides examples of mix designs and strength gains achieved with different blends of cement.<br /><br />Strategies for sustainability and carbon reduction are presented, including optimizing aggregates and SCM efficiency, variable mix designs based on elements, and blending different types of cement. The presentation includes data on the reduction of carbon emissions achieved with different cement blends.<br /><br />The presentation concludes by highlighting the advantages of precast-prestress concrete in terms of sustainability and encourages the audience to see the opportunity to become part of the solution. The speakers invite questions from the audience.

Keywords

Portland limestone cement

precast-prestress applications

lower carbon footprint

sustainability

LEED certification

clinker to cement ratio

strength and durability

carbon emissions reduction

mix designs

precast-prestress concrete