Slag cement

Details Slag cement Slag cement

2005-04-18

2009-02-17

Marcantoni, Paul (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S738000, C106S789000, C106S791000

Reexamination Certificate

active

07491268

ABSTRACT:
A slag cement includes ground granulated blast furnace slag and ground limestone combined in a predetermined weight ratio. Limestone and granulated blast furnace slag (GBFS) are fed to a grinding apparatus in a ratio of about 3-5% limestone by weight. The limestone is a cheaper raw material than the GBFS, resulting in a reduction in production costs for the slag cement. Moreover, the addition of limestone to the GBFS surprisingly results in improved compressive strength.

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