Which one of the following statements is not correct with respect to the properties of cement?

• A. Highly reactive Pozzolanas enhance the early age strength of the composite cement.
• B. Pozzolanic activity refines pore structure which decreases electrolytic resistance of concrete.
• C. The expansion due to alkali-silica reaction can be controlled by replacement of as high as 60% of OPC with high-calcium Pozzolana.
• D. Such high amounts of replacement of cement resulting in higher accelerated carbonation depths compared to the pure use of OPC only.