Silica fume vs fly ash

Silica fume vs fly ash

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Micro silica, also known as silica fume or agglomerated silica fume, its process is that when ferroalloys in the process of smelting ferrosilicon and industrial silicon (metal silicon), produced a large amount of highly volatile SiO2 and Si gas, rapidly oxidized and condensed with air. It is ultrafine, so it's…
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Effect of cement replacement by silica fume and fly ash

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CHEMISTRY OF FLY ASH AND SILICA FUME The fly ash in concrete makes efficient use of product of hydration of cement such as calcium hydroxide (C-H) which is otherwise a source of weakness in normal cement concrete converts it into denser and stronger C-S-H ompounds by pozzolanic reaction. The heat…
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