Ko ngā painga o Fly Ash i roto i te Concrete Reri-mix

Nā: | Kua tukuna ki: Fly Ash | Paraire, Hōng 3, 2020 - 6:52am
Fly Ash in concrete

Fly ash is the most mineral residue left over from burning coal by coal-fired power plants. He pozzolanic te rere rere, meaning that it has cementitious properties. It is valuable for


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Vale Commits $3 Billion Ki te Tukanga Ore Rino Dry

Nā: | Kua tukuna ki: mineral | Paraire, Hōng 31, 2020 - 6:50am
Dry iron ore processing

Companhia Vale do Reio Doce (CVRD) ko tētahi o ngā kamupene kari nui rawa o te ao. Te tari i Paratira, He mahi kari tā rātau i roto i 30 ngā whenua o te ao. Rātau


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