My take on Eden, page-3

Solving the problem of clumping is exactly what Eden spent years doing. That's what makes Edencrete such a great additive.

How does EdenCrete make concrete tougher?

Good question. When added to concrete mixtures, EdenCrete carbon nanotubes fill in spaces at the nanoscopic level between the hydrated cement particles. When concrete dries, instead of leaving porous openings that would allow water to penetrate or cracks to develop, these nanotubes create millions of flexible, strong carbon bridges throughout the structure. These carbon bridges greatly improve resistance to failure caused by bending stresses, resulting in greater resistance to abrasive wear and crack propagation. In fact, not only does EdenCrete make concrete stronger, we believe it can also increase concrete longevity beyond traditional expectations.

http://www.edencrete.com/how-it-works/#carbonfibernanotube

Works well with other concrete additives

EdenCrete is neutral and non-reactive. It can be used in mixes containing any of the various admixture chemistry-types commonly in the market. Unlike chemical concrete admixtures that can impact the workability, color or effectiveness of your mix, EdenCrete does not require altering formulations or procedures to get the mix you want. It offers a wide range of compatibility for contractors, architects and ready mix companies.

IMO DYOR GLTA