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Portland cement

What is cement and its history?

Cement, the gray and fine powder, is the most used construction material on the world. However, how many people do they know what cement is? the answer for this question from Wikipedia is as follows, In the most general sense of the word, a cement is a binder, a substance that sets and hardens independently, […]

Categories
Blended cement

Microstructure development of limestone blended cement

Though the chemical reaction of the fine particles of limestone in cement paste is limited to a low extent due to its inert property, the addition of limestone particles has significant effect on the microstructure development. Research conducted by Sellevold et al. using mercury intrusion method showed that specimens containing 12% CaCO3, which have the […]

Categories
Blended cement

Low reactivity and reported reaction extent of limestone in blended cement

The extent of reaction of limestone with cement clinkers is relatively low than the corresponding values of cement clinkers, the probable cause for this as stated above arise from the low solubility and low reactivity of limestone particles, though other factors of limestone, including fineness, particle size distribution, etc., do have influence on its reaction […]