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54 පේළිය:
'''Colored cements''' are used for decorative purposes. In some standards, the addition of pigments to produce "colored Portland cement" is allowed. In other standards (e.g. ASTM), pigments are not allowed constituents of Portland cement, and colored cements are sold as "blended hydraulic cements".
'''Very finely ground cements''' are made from mixtures of cement with sand or with slag or other pozzolan type minerals that are extremely finely ground together. Such cements can have the same physical characteristics as normal cement but with 50% less cement particularly due to their increased surface area for the chemical reaction. Even with intensive grinding they can use up to 50% less energy to fabricate than ordinary Portland cements.<ref>{{cite web | author = SINTEF Civil and Environmental Engineering, Cement and Concrete, N-7465 Trondheim, Norway | title = Mechanism for performance of energetically modified cement EMC | url = http://www.emccement.com/Articles/EMC%20mechanism%20paper.pdf | Cement and Concrete Research 35 (2005) 315– 323.|archiveurl=http://web.archive.org/web/20090106185237/http://www.emccement.com/Articles/EMC%20mechanism%20paper.pdf|archivedate=2009-01-06}}</ref>
===Non-Portland hydraulic cements===
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