Benito, P.

Leonelli, C.

Medri, V.

Vaccari, A.

English

Benito P.

Leonelli C.

Medri V.

Vaccari A.

Archivio istituzionale della ricerca - Università di Modena e Reggio Emilia

Applied Clay Science 73 (2013) 1Contents lists available at SciVerse ScienceDirectApplied Clay Sciencej ourna l homepage: www.e lsev ie r .com/ locate /c layPrefaceGeopolymers: a new and smart way for a sustainable developmentP. Benito, C. Leonelli, V. Medri, A. Vaccari“Geopolymers” is a general term that describes a wide variety ofinorganic and composite materials with limited restrictions on alumi-na and silica content. In the last decades, they have been also definedas “low-temperature aluminosilicate glasses”, “hydroceramics”,“inorganic polymer concrete” or “alkali bonded ceramics”. Recently,an updated definition has been proposed by the RILEM TechnicalCommittee 224-AAM: “geopolymer materials are essential alumino-silicates activated with alkaline solution, excluding any otheralkali-activated materials that should be classified apart” [1].Geopolymers are attractive from several perspectives: cost(near-net-shape pieces may be produced at low temperature), avoid-ance of temperature gradients (thermal stress), dimensional stabilityover a wide range of temperature, possibility of in-situ production,and tailoring of the properties by introducing fillers, pigments,macromolecules, etc. to produce composite materials. Moreover,geopolymers have been developed following the principles of greenchemistry, since they are synthesized from a wide variety of mate-rials, including recycled resources and mineral wastes, reducing theenergy demand and environmental impact during their production.For these reasons, geopolymerization or alkali activation may be con-sidered an environmentally friendly and sustainable consolidationtechnique for years to come to treat aluminosilicate-based wastes,tailings and residues.Geopolymer technology produces a wide range of versatilematerials already applied in many fields: automotive and aero-space, non-ferrous foundry and metallurgy, buildings and con-structions, waste management, retrofitting, cultural heritage andso on.The aim of the Special Issue “Geopolymers: a new and smart wayfor a sustainable development” is to present an updated “state-of-the-art” collection of original papers ranging from the base scienceto application-driven researches. Since geopolymers mimic clayminerals in terms of final structure and properties, the special issuecontains not only papers on clay-based geopolymers, but also on0169-1317/$ – see front matter © 2013 Published by Elsevier B.V.http://dx.doi.org/10.1016/j.clay.2013.03.008materials produced from recycled aluminosilicates, assessing that:“Geopolymers are the logical consequence of the green chemistry,which operates for a sustainable development”.The first part of the Issue is dedicated to basic studies ofmetakaolin-based model systems with the aim to define theirmicro- and nano-structures. Passing through the study of the pro-cessing of raw materials or the geopolymer consolidation stage,readers are accompanied to the evaluation of the properties; thislatter part of the Issue appears particularly appealing because it isapplication-driven. Finally, several formulations of geopolymersderiving from industrial wastes are presented.The editors believe that the satisfaction of the readers is the bestrecognition to the efforts and time devoted to this Special Issue.The following peer reviewers whose fundamental contributionsensured the high scientific quality of the collected manuscripts haveto be acknowledged: Priscila Anadão (Brazil); Luisa Barbieri (Italy);Maria Chiara Bignozzi (Italy); Erica Brendler (Germany); UmbertoCostantino (Italy); Joseph Davidovits (France); Jiri Dedecek(Czech-Republic); Antoine Elimbi (Cameroon); Jan Elsen (Belgium);Jose Escalante Garcia (Mexico); Claudio Ferone (Italy); SabrinaGualtieri (Italy); Marc Hebrant (USA); Ko Ikeda (Japan); Elie Kamseu(Cameroon); Alexander Karamanov (Bulgary); Kostas Komnitsas(Greece); Pavel Krivenko (Ukraine); Isabella Lancellotti (Italy);Elena Landi (Italy); Vladimir Machovic (Czech-Republic); FabioMarmottini (Italy); Ángel Palomo-Sánchez (Spain); Dimitrios Panias(Greece); Jean Pera (France); John Provis (Australia); MarcelloRomagnoli (Italy); Fabrice Rossignol (France); Marco Taddia (Italy);Vincent Thiery (France); Rattanasak Ubolluk (Thailand); Arie vanRiessen (Australia); Miguel Ángel Vicente (Spain); and Claire White(USA).Reference[1] http://www.rilem.net/tcDetails.php?tc=224-AAM.

Geopolymers: A new and smart way for a sustainable development

https://iris.unimore.it/bitstream/11380/1208150/1/applClaySci2013_preface.pdf

Geopolymers: A new and smart way for a sustainable development

Abstract

Similar works

Full text

Available Versions

Archivio istituzionale della ricerca - Università di Modena e Reggio Emilia