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Activated Clays and Their Potential in the Cement Industry

Updated: Feb 11, 2023



The thermal activation of clays to produce highly reactive artificial pozzolans

on a large scale is one of the most important technologies developed on an industrial

scale to reduce CO2 emissions in cement manufacture. This technical document

deals with the scientific basis for the thermal activation of clays to produce

an extraordinarily high quality supplementary cementitious material (SCM)

based on the contents of its hydraulic factors, reactive silica (SiO2r–) and reactive

alumina (Al2O3r–). The production process and the optimization of its use in the

new cements offers better performance, features and durability. Furthermore, its

mixture with Portland cement is much more appropriate when carried out in a

blending station after both components, activated clay and Portland cement, are

ground separately and not jointly in a single mill.


Full article available at: https://www.intechopen.com/chapters/78048


Carlos Hernando Aramburo Varela, Luiz Felipe de Pinho, César Pedrajas Nieto-Márquez and Rafael Talero Morales




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