Estudio estructural de arcillas de Chulucanas por difracción de rayos-X y método de Rietveld

Results of measures of X-ray diffraction showed a sequence of chemical and structural changes such as dehydration, decomposition and formation of new phases in clays subjected to gradual increases in temperature. The components of the samples were determined identifying Ca-montmorillonite, vermiculite, muscovite, kaolinite, chlorita, illite, quartz and albite. The structural refinement by the Rietveld method reported the presence of a higher percentage of non-expansive clay compared to the expansive in all samples. At 250ºC, Ca-montmorillonite presents a drastic decrease in its interlayer dis...