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Mechanochemical activation of natural clay minerals: an alternative to produce sustainable cementitious binders – review
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand. (Building Materials)ORCID-id: 0000-0002-6797-9300
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.ORCID-id: 0000-0001-7279-6528
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand.ORCID-id: 0000-0001-6287-2240
2019 (engelsk)Inngår i: Mineralogy and Petrology, ISSN 0930-0708, E-ISSN 1438-1168, Vol. 113, nr 4, s. 449-462Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Mechanochemical activation can be defined as a process able to induce structural disorder through intensive grinding. In certain conditions, it may increase the chemical reactivity of the processed material. The process is extensively utilized in extractive metallurgy, synthesis of nanocomposites or pharmacology. It is also considered an environmentally friendly alternative to activate kaolinitic clay avoiding high calcination temperature. This paper aims to give a comprehensive overview of the process, its evolution, process parameters and applications. The paper focuses on the mechanochemical treatment of natural clay minerals, aiming at their transformation into cementitious or pozzolanic materials. It provides a summarized review of the theories related to the mechanochemistry and discusses commonly used models. The paper also analyzes various key factors and parameters controlling the mechanochemical activation process. The optimization and control of the several factors, as the filling ratio, the grinding media, the velocity, the time of grinding, etc., can promote developments and new research opportunities on different fields of application. Examples of applications, with a special focus on mechanochemically activated clay minerals and their use as cementitious binders, are listed as well.

sted, utgiver, år, opplag, sider
Springer, 2019. Vol. 113, nr 4, s. 449-462
Emneord [en]
Mechanochemistry, Grinding, Mechanochemical activation, Clay minerals, Kaolin
HSV kategori
Forskningsprogram
Byggmaterial
Identifikatorer
URN: urn:nbn:se:ltu:diva-73879DOI: 10.1007/s00710-019-00666-yISI: 000475666800002Scopus ID: 2-s2.0-85065650673OAI: oai:DiVA.org:ltu-73879DiVA, id: diva2:1314434
Merknad

Validerad;2019;Nivå 2;2019-07-12 (johcin)

Tilgjengelig fra: 2019-05-08 Laget: 2019-05-08 Sist oppdatert: 2019-08-16bibliografisk kontrollert

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