2 ms·
> The history of the research and development of polymer concrete is relatively short compared with that of conventional cement concrete. This history of most
by mr_toad 4y ago
> The history of the research and development of polymer concrete is relatively short compared with that of conventional cement concrete.
This history of most things is short compared to concrete.
https://en.wikipedia.org/wiki/Roman_concrete https://en.wikipedia.org/wiki/Roman_concrete