CSN 72 2072-8-2000 Fly ash for building industry purposes - Part 8: Fly ash for the artificial aggregate production under current atmospherical conditions and artifical aggregates hardened in an accelerated way
2000CSN 72 2072-8-2000 Fly ash for building industry purposes - Part 8: Fly ash for the artificial aggregate production under current atmospherical conditions and artifical aggregates hardened in an accelerated way