Fragrant and aromatic

https://www.nanoscience.com/applications/education/overview/cnt-technology-overview/

A short,  interesting read.

There’s a few comments within that suggest favourable application in concrete ... unusually strong nano scale tube reinforcement fibres with unusually long aspect ratios ... surface texture that would appear to act as an adhesive grid  ... you can envisage how that could help control micro cracking and/or reduce the need for conventional steel reinforcement ... rheological implications ... particle interaction implications ... unusual directional conductivity and thermal resistance ... and more.

Lots for imagination, experience and concrete technologists to explore.

The fragrance of innovation added to the already intoxicating aroma of concrete.

Dex