Activated alkaline materials represent a sustainable alternative to traditional binders due to their lower environmental impact. Within this group, geopolymer stands out as an inorganic aluminosilicate polymer that is mainly formed by a polymerisation reaction between alumina (Al\u2082O\u2083) and silica (SiO\u2082). Its structure is composed of tetrahedra of [AlO\u2082] and [SiO\u2082] linked through shared oxygen atoms, resulting in a three-dimensional network known as polysialate chains. <\/p>\n\n
Geopolymerisation is the process by which this material is obtained. It consists of the activation of raw materials – usually industrial waste or natural resources rich in aluminosilicates – by means of highly concentrated alkaline solutions, followed by a curing treatment. Common raw materials include fly ash, slag, clays, kaolin and metakaolin. <\/p>\n\n
To characterise the structure and composition of these materials, the Rietveld method, an advanced analytical technique used to refine crystal structures from powder X-ray diffraction data, was employed. This method allows fitting a theoretical model to the experimental data by means of an iterative least squares process, with the aim of minimising the difference between the observed and the calculated pattern. <\/p>\n\n
In this study, the Rietveld method was applied to perform a quantitative analysis of the crystalline and amorphous phases present in the material, providing key information on its microstructure and degree of reaction.<\/p>\n","protected":false},"featured_media":6617,"template":"","fecha-realizacion":[195],"tipo-proyecto":[49],"class_list":["post-6793","proyecto","type-proyecto","status-publish","has-post-thumbnail","hentry","fecha-realizacion-2025-en","tipo-proyecto-innovation"],"acf":[],"_links":{"self":[{"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/proyecto\/6793","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/proyecto"}],"about":[{"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/types\/proyecto"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/media\/6617"}],"wp:attachment":[{"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/media?parent=6793"}],"wp:term":[{"taxonomy":"fecha-realizacion","embeddable":true,"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/fecha-realizacion?post=6793"},{"taxonomy":"tipo-proyecto","embeddable":true,"href":"https:\/\/teselainnova.com\/en\/wp-json\/wp\/v2\/tipo-proyecto?post=6793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}