Presented By: Yu Wang, Purdue University
Description: Cellulose nanomaterials (CNMs) are a class of biodegradable substances highly prized for their intrinsic non-toxicity and cost-effectiveness. Sourced from renewable materials, CNMs have attracted interest in recent research, particularly for their capacity to alter the rheological properties of cementitious materials. This emerging potential positions CNMs as a sustainable and cost-effective viscosity modifier in the 3D printing industry. Moreover, recent research has explored CNMs' multifaceted benefits, implying their capacity to accelerate the hydration process and optimize pore structures. Such improvements in the material matrix yield enhancements in both mechanical and transport properties of cementitious materials. This presentation will provide a comparative analysis, examining the buildability and rheological properties of mortars incorporating CNMs in contrast to those using other viscosity-modifying additives. The hydration kinetics and mechanical properties of the 3D printing mixture will also be presented. This incorporation has the potential to develop a sustainable and cost-efficient concrete mixture with enhanced rheology, mechanical, and durability performance for 3D printing applications.
Негізгі бет Sustainable Cementitious Composite Containing Cellulose Nano Fibers for Concrete 3D-Printing
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