Porsal cement

Belite-aluminate cement or aluminate-belite cement, also called porsal cement, contains -C2S (belite) and the calcium aluminate phases CA and its main constituents. It... 

The phase composition of the porsal clinker may vary in the following range P-C, 55-75% CA, 15-30% C 2A, 0-10% glass phase, 0-10% and—in the presence of SO3—also C4A3S, 0-15%. To obtain porsal cement, the clinker, which is easy to grind, is ground to cement fineness, without adding calcium sulfate to it, to act as set retarder. 

Porsal cement exhibits an acceptable strength development, comparable to that of Portland cement, and a high resistance against sulfate attack. It may be considered for apphcations similar to those of ordinary Portland cement. 

Laxmi (1992) produced colored porsal cements. A bine product was obtained by adding to a low-iron raw meal 1.6 wt% CO3O4. A pink cement was produced by adding Fc203 (6.8 wt%) andZrO (3.3 wt%). 

Viswanathan, V.N., Raina, S.J., and Chatteijee, A.K. (1978) An exploratory investigation of Porsal cement. World Cement Technology 9,109-118. 

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