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Cement is usually a mixture of :

Answer» <html><body><p> Calcium silicate and calcium aluminate</p><br/><br/><p>Portland cement is the most common type of cement in general use around the world because it is a basic <a href="https://interviewquestions.tuteehub.com/tag/ingredient-1044207" style="font-weight:bold;" target="_blank" title="Click to know more about INGREDIENT">INGREDIENT</a> of concrete, mortar, stucco and most nonspecialty grout. It usually originates from <a href="https://interviewquestions.tuteehub.com/tag/limestone-1074002" style="font-weight:bold;" target="_blank" title="Click to know more about LIMESTONE">LIMESTONE</a>. It is a fine powder produced by grinding Portland cement clinker (more than <a href="https://interviewquestions.tuteehub.com/tag/90-341351" style="font-weight:bold;" target="_blank" title="Click to know more about 90">90</a>%), a limited amount of calcium sulfate (which controls the set <a href="https://interviewquestions.tuteehub.com/tag/time-19467" style="font-weight:bold;" target="_blank" title="Click to know more about TIME">TIME</a>) and up to 5% minor constituents. Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of aluminium- and iron-containing clinker <a href="https://interviewquestions.tuteehub.com/tag/phases-1152932" style="font-weight:bold;" target="_blank" title="Click to know more about PHASES">PHASES</a> and other compounds.</p></body></html>


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