Fiber-Reinforced Self-Consolidating Concrete - Development and Use-Homogeneity of Self-Compacting Concrete Modified (Recorded Presentation)

Homogeneity of Self-Compacting Concrete Modified (Recorded Presentation)

Video Transcription

Video Summary

The presentation delves into the impact of incorporating carbon nanotubes (CNTs) into self-compacting concrete (SCC). It examines both the fresh and hardened properties and proposes a new method for evaluating mix stability, segregation, and homogeneity. Adding CNTs impacts the modulus of elasticity positively, increasing it by 70% while having minimal effect on compressive strength. An improvement in workability and flowability was observed, although traditional fresh-state evaluations like segregation resistance still remain critical.<br /><br />Through experimental methods involving resistivity and capacitance measurement, the study demonstrates detailed insights into segregation resistance. Specifically, the research highlights that capacitance is a better indicator for understanding material segregation compared to resistivity. The presence of water and its distribution significantly influences capacitance, providing a more precise assessment of homogeneity. Conclusively, CNT-reinforced SCC shows promising potential for enhanced stability and performance, positioning itself as a vital material for future concrete technology developments.

Keywords

carbon nanotubes

self-compacting concrete

mix stability

capacitance measurement

modulus of elasticity