Limestone is an important material for cement manufacture. The addition of limestone to Portland cement may
significantly improve several cement properties such as
compressive strength, water demand, workability, durability [1 ±7], and can also decrease production costs. The
effects of small limestone additions on both compressive
strength and on heat of hydration are relatively well
known, but less is known about the dependence of these
effects on clinker properties (for example C3S content),
fineness of cement and other factors. There is evidence
that the influence of limestone depends on C3A content of
clinker because CaCO3 produces calcium carboaluminate
hydrate during the reaction with C3A [1,8,9]. There is also
some evidence that finely ground limestone influences C3S
hydration [10 ± 13] but the influence of C3S content in
clinker on the effect of limestone addition is not so
well documented.
Limestone is an important material for cement manufacture. The addition of limestone to Portland cement may
significantly improve several cement properties such as
compressive strength, water demand, workability, durability [1 ±7], and can also decrease production costs. The
effects of small limestone additions on both compressive
strength and on heat of hydration are relatively well
known, but less is known about the dependence of these
effects on clinker properties (for example C3S content),
fineness of cement and other factors. There is evidence
that the influence of limestone depends on C3A content of
clinker because CaCO3 produces calcium carboaluminate
hydrate during the reaction with C3A [1,8,9]. There is also
some evidence that finely ground limestone influences C3S
hydration [10 ± 13] but the influence of C3S content in
clinker on the effect of limestone addition is not so
well documented.
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