Supplementary Cementitious Materials

Research in supplementary cementitious materials (SCMs) investigates the use of industrial byproducts and natural pozzolans to enhance the performance and sustainability of concrete. This area explores the chemical and physical interactions of SCMs with cementitious binders, examining their impact on fresh concrete properties, hardened concrete strength, durability, and long-term performance. Studies involve material characterization, mix design optimization, and accelerated testing to understand mechanisms of concrete deterioration and resistance. Specific topics include the utilization of fly ash, slag, silica fume, and calcined clays, as well as the development of novel SCMs from waste materials.

This research is relevant to Arkansas's infrastructure development and its significant construction and manufacturing sectors. Improving concrete durability through SCMs can reduce the lifecycle costs of roads, bridges, and buildings, contributing to economic efficiency and public safety. Furthermore, the use of SCMs aligns with state goals for environmental stewardship by diverting industrial waste from landfills and reducing the carbon footprint associated with traditional cement production. Understanding the behavior of concrete in Arkansas's diverse environmental conditions, from humidity to potential freeze-thaw cycles, is crucial for resilient infrastructure.

This field draws on expertise in materials science, civil engineering, and chemistry. Research is conducted across multiple Arkansas institutions, fostering collaboration and a broad base of knowledge in construction materials testing and sustainable concrete technology.