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The sustainable concrete of the future

New limitations and concepts

1 → Required minimum packing density (defining the ratio of the volume of solids to the total volume of a particle mix) of a cement/fly ash mix for various fly ash percentages in the binder depending on the equivalent w/c ratio

Initial situation

The concept of sustainability refers to the use of a regenerative system in such a way that this system is preserved with respect to its essential characteristics and that its inventory is capable of regenerating itself in a natural process [1]. This principle was originally developed in the field of forestry and can be applied to concrete only in a figurative sense because it does not consider the required performance of the material with respect to the specific construction project to be completed. The significant environmental impact resulting from cement and concrete...

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