In Portland cement, 10 to 25% of the cement can be replaced by KUJATAMA Zeo, which is a type N pozzolan that produces a light-weight cement. It can be applied by adding it to the concrete at the batch plant, or added at the cement plant after the kiln as minus 6 inch rock directly to the inter-grind circuit. The advantage of the latter method is that it does not go through the kiln, which substantially reduces fuel cost and carbon dioxide generation.

KUJATAMA Zeo increases compressive strength, reduces chloride permeability, decreases alkali-silica reactivity, resists sulfate and acid attack, and improves chemical resistance. Zeolite can be used instead of fly ash, which contains heavy metals and is hazardous to humans.

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