Influence of the addition of 2% calcium carbonate during the manufacturing process of red ceramic brick: drying and firing stage

Dania Betancourt, Yosvany Díaz, Fernando Martirena


The work studies the influence of the addition of 2% calcium carbonate during the drying stage and the efficiency of the firing stage during the manufacturing processof red ceramic bricks. The study was conducted in a factory producing hollow bricks with an installed capacity of 65,000 bricks per burning. Results from the studyshowed that the addition of 2% CaCO3 to the clay paste reduces the drying time by 35% compared with bricks made without addition, and causes a 27% reductionof the fuel consumption in relation to previous burnings without the addition of this flux, due to the reduction of the firing time in the ovens.

Rev. ing. constr. [online]. 2013, vol.28, n.2, pp. 113-124. ISSN 0718-5073.


Firing; drying; energy efficiency; fluxes; red ceramic bricks



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