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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