Requirement Cement vs. Offer Earth Crust Element Typical for Average earth cement (%) crust (%) Ca 46 4 Si 10 28 Al 3 8 Fe 3 5

Requirement Cement vs. Offer Earth Crust Element Typical for Average earth cement (%) crust (%) Ca 46 4 Si 10 28 Al 3 8 Fe 3 5

Requirement Cement vs. Offer Earth Crust

Element Typical for Average earth cement (%) crust (%)
Ca 46 4
Si 10 28
Al 3 8
Fe 3 5

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