​​SESSION 16: CARBON REDUCTION STRATEGIES

​

Eco-Efficient and Carbon-Negative Supplementary Cementitious Materials Derived from Solid Wastes

​

Dr. Hongyan Ma, Associate Professor, Civil, Architectural and Environmental Engineering, Missouri S&T

​

Using large-volume supplementary cementitious materials (SCMs) to substitute Portland cement is still the most effective way to decarbonize concrete. However, many states are facing shortages of on-specification SCMs (e.g., class F and class C fly ashes and GGBFS). Meanwhile, the US has large repositories of alkali aluminosilicate solid wastes such as historically ponded coal combustion products, steel slags, and municipal solid waste incineration ashes, which are potential sources of unconventional or off-specification SCMs. In this presentation, artificial intelligence-guided and carbon-negative processes that can screen and upcycle such solid wastes into high-quality SCMs will be introduced. The goal of the new technologies is to maximize cement substitution without compromising the performance of concrete.

 

Product Spotlight - Climate Earth​

The Role of EPDs in the Digital Transformation of the Construction Industry

​

Chris Erickson, CEO, Climate Earth

 

This presentation will discuss how digital EPDs are forming the basis for new applications and are applied to analytics and real time visual reporting in support of the increasing demand for transparency. The presentation will Include a brief primer on real time EPDs and the key building blocks for EPD digital integration and how digital EPDs can be used in ready mixed concrete applications.

​

Product Spotlight - Holcim

Reducing Carbon Through Innovative Technology

​

Stephen Herald, Technical Services Manager and Kai Hilton, Quality Control Supervisor, Holcim

​

This presentation will discuss Tribology (pumping simulation), and Smartcast (leveraging sensors to accurately predict strength of reduced carbon mix designs). Several case studies on high-profile projects will be highlighted.

​

NRMCA Concrete Carbon Calculator 

​

Brandon Wray, Director, Building Innovations, NRMCA

​

​NRMCA's new web-based tool empowers design and build teams to specify low-carbon concrete. The easy-to-use software compares projects using benchmarks for a baseline project versus proposed low-carbon concrete. You can use NRMCA benchmarks, GSA benchmarks and various state and local benchmarks…or set your own voluntary benchmarks for low carbon concrete. You can enter carbon footprint from your own EPDs or calculate carbon footprint by entering low-carbon mix designs. This presentation will demonstrate how to use the tool to help write specifications that allow for the lowest possible carbon footprint reductions.

​