Influencia de la finura de molido del carbonato de calcio en las propiedades físico mecánicas y de durabilidad de los ladrillos de cerámica roja

the paper exposes the results of a study, at macro structural level, on the influence of the calcite grinding process fineness on the red ceramic bricks following properties: compressive strenggth, density, absorption and durability, though the performance of physical - mechanical and accelerated aging tests, when this is added in an amount inferior to the 10% in relation with the clay weight. it is proved that when this admixture is ground until fineness between 72 \im and 150 [im, the above mentioned properties are not affected, however it doesn't occur this way when it is ground until a particle size of 29m. the carried out study, demonstrates that with this specific surface, the calcite addition affects the red ceramic bricks physical-mechanical properties as well as their durability