Recycling trachyte waste from the quarry to the brick industry: effects on physical and mechanical properties, and durability of new bricks
Author
dc.contributor.author
Coletti, Chiara
Author
dc.contributor.author
Maritan, Lara
Author
dc.contributor.author
Cultrone, Giuseppe
Author
dc.contributor.author
Dalconi, Maria Chiara
Author
dc.contributor.author
Hein, Anno
Author
dc.contributor.author
Molina, Eduardo
Author
dc.contributor.author
Mazzoli, Claudio
Admission date
dc.date.accessioned
2018-07-20T17:21:36Z
Available date
dc.date.available
2018-07-20T17:21:36Z
Publication date
dc.date.issued
2018
Cita de ítem
dc.identifier.citation
Construction and Building Materials, 166 (2018): 792–807
es_ES
Identifier
dc.identifier.other
10.1016/j.conbuildmat.2018.01.158
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/150098
Abstract
dc.description.abstract
This work examined the possibility of recycling trachyte waste as temper for preparing new types of bricks, thus reducing disposal costs and requirements for increasingly vulnerable raw materials, ultimately reducing production costs. The influence of the waste addition was studied by determining the petrographic and physical characteristics of fired bricks, in order to assess their aesthetic and mechanical features. Alkali feldspars in trachyte turned out act as fluxing agents, favoring partial melting of the matrix. Textural and mineralogical analyses revealed a considerable increase in the number of connections among minerals, extensive re-crystallization of the matrix, and an overall increase in compactness, not only with increasing firing temperatures but also increasing trachyte contents. The physical and mechanical properties of all samples were comparable with those of traditional bricks, showing that the addition of trachyte confers sufficient technical features already at 900 degrees C, allowing further reduction of production costs by lowering firing temperatures.
es_ES
Patrocinador
dc.description.sponsorship
Research Group RNM179 of the Junta de Andalucia
MAT2016-75889-R
INPS - Gestione Ex Inpdap (Direzione Regionale Veneto)
University of Padova
CPDA151883