Abstract
Ornamental stones, such as marble and granite, are worldwide used as pavement cover and lining parts in civil construction. Dwindling deposits and environmental pollution, due to extraction methods, have motivated the replacement of natural ornamental stones by synthetic ones. In particular, artificial ornamental stones are being developed with mineral wastes incorporated into polymeric matrix. In this work, granite particle waste, from a quarry, which supplies plates for building construction, was used in amounts of 85 and 90 wt % together with epoxy resin to fabricate novel artificial stones. Physical and mechanical characterization disclosed superior properties that allow these new developed artificial stones to be applied as pedestrian traffic pavements.
Highlights
The reuse of industrial residues is attracting interest for research and development of novel materials
By means of dry sieving, the reduced waste was separated into three granulometric classes, shown in Table 1, according to the ABNT/NBR-7181 Brazilian standard[18]
The epoxy used as binding for the waste particles was a diglycidyl ether of bisphenol A (DGEBA) resin mixed with stoichiometric 13 parts per hundred of triethylene tetramine (TETA) supplied by Epoxyfiber, Brazil
Summary
The reuse of industrial residues is attracting interest for research and development of novel materials. Mineral residues that are commonly discarded in the environment are today considered as relevant sources of raw materials[1]. Inorganic mineral wastes have a valorization potential associated with both energy saving and development of new produts[1,2]. A typical case is that of ornamental stone production. These stones, such as marble and granite, are produced as plates in mineral quarries by explosion, sawing and polishing methods that generate a considerable amount of fragments with different sizes[3]. By contrast smaller particles are considered wastes and thrown away from the operational industrial area
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