SILICA FUME FOR FIBER CEMENT


1)silica fume forms additional binders = pozzolanic reaction

The hydration (mixing with water) of Portland cement produces many compounds, including calcium sixlicate hydrates (CSH) and calcium hydroxide (CH).

When silica fumxe is added to fresh concrete it chemically reacts with the CH to produces additional CSH.

The benefit of this reaction is twofoxld; increased coxmpressive strength and chemical resistance.