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Materials (Basel). 2018 Mar 20;11(3). pii: E453. doi: 10.3390/ma11030453.

Wastes as Aggregates, Binders or Additions in Mortars: Selecting Their Role Based on Characterization.

Author information

1
CERIS, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal. catarina.brazao.farinha@ist.utl.pt.
2
National Laboratory for Civil Engineering, Av. do Brasil 101, 1700-066 Lisbon, Portugal. catarina.brazao.farinha@ist.utl.pt.
3
CERIS, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal. jb@civil.ist.utl.pt.
4
National Laboratory for Civil Engineering, Av. do Brasil 101, 1700-066 Lisbon, Portugal. rveiga@lnec.pt.
5
Inorganic Chemical Area, School of Engineering Sciences of Belmez, University of Córdoba, Av. de la Universidad s/n, 14240 Belmez, Spain. um1feroj@uco.es.
6
Construction Engineering Area, School of Engineering Sciences of Belmez, University of Córdoba, Av. de la Universidad s/n, 14240 Belmez, Spain. jrjimenez@uco.es.
7
Inorganic Chemical Area, School of Engineering Sciences of Belmez, University of Córdoba, Av. de la Universidad s/n, 14240 Belmez, Spain. p52roesa@uco.es.

Abstract

The production of waste has increased over the years and, lacking a recycle or recovery solution, it is forwarded to landfill. The incorporation of wastes in cement-based materials is a solution to reduce waste deposition. In this regard, some researchers have been studying the incorporation of wastes with different functions: aggregate, binder and addition. The incorporation of wastes should take advantage of their characteristics. It requires a judicious analysis of their particles. This research involves the analysis of seven industrial wastes: biomass ashes, glass fibre, reinforced polymer dust, sanitary ware, fluid catalytic cracking, acrylic fibre, textile fibre and glass fibre. The main characteristics and advantages of each waste are enunciated and the best type of introduction in mortars is discussed. The characterization of the wastes as particles is necessary to identify the most suitable incorporation in mortars. In this research, some wastes are studied with a view to their re-use or recycling in mortars. Thus, this research focuses on the chemical, physical and mechanical characterization of industrial wastes and identification of the potentially most advantageous type of incorporation.

KEYWORDS:

cement mortar; industrial waste; materials characterization; re-use; recycle

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