Strong research support for EDE claims

Hi Rolling,

Another great find in your post of earlier today. Thanks.

That post is candidate for best HC post of the week.

But I think it justifys new thread with appropriate title.

That’s got important verification of EDE claims from 2 independent sources – that:

1. critical mechanical properties of cement / concrete can be significantly improved by changes in nano scale chemistry rather than macro scale and

1. especially by CNT / CNF’s.

The Vickers et al (WA’s Curtin Uni) published 2015 & your 3rd ref Metaxa et al (Northwestern University , Evanston, Illanoi) was published 2010.

I’ve pasted an important bit from your 3rd ref  below.

Cheers

Below excerpt from Metaxa et al.

Three-point bending tests have shown that CNFs at a concentration as low as 0.048wt% can be used, under the test conditions employed in the research reported here, to increase the flexural strength and the Young’s modulus of cement matrix up
to 40% and 75%, respectively. These improvements on the mechanical properties of the matrix can be attributed to good bonding between the CNFs and the cement hydration products as well as the ability of the CNFs to control cracking at the nanoscale by bridging nanocracks and pores.