Concrete paving blocks and flags made with crushed brick as aggregate

Reusing ceramic tile polishing waste in paving block manufacturing

“…Ganjian et al (2015) used granulated blast furnace, cement by-pass dust, run-of-station ash, basic oxygen slag, plasterboard gypsum, incinerator bottom ash, recycled crushed glass, recycled concrete aggregate, recycled bricks, steel fiber and PVA fiber for aggregate and cement replacement in paving block production. Other studies used recycled demolition aggregates (Poon and Chan, 2006;Poon and Cheung, 2007;Soutsos et al, 2011;Jankovic et al, 2012), rubber waste (Ling, 2012), red mud and fly ash (Kumar and Kumar, 2013), slag cement (El Nouhy, 2013), recycled CRT funnel glass (Ling and Poon, 2014) and crushed ceramic (Sadek and El Nouhy, 2014) for replacement of conventional aggregates. Yunhong et al (2014) and Jacoby and Pelisser (2015) noted that high volume of wastes are generated by ceramic companies and currently there is no effective means to treat or reuse it.…”

Leaching behavior of some demolition wastes

“…The hazardous wastes list is available as per the European Regulation [6][7][8][9]. Inert CDW can be processed and made suitable for use in road construction, e.g., [10][11][12][13][14]. Other research studies have clearly suggested the possibility of properly treating and reusing such waste as aggregate in new concrete (especially lower level applications) [15][16][17][18][19][20][21][22][23][24][25].…”

Influence of the water variation on the mechanical properties of concrete manufactured with recycled mixed aggregates for pre-stressed components

“…At this point, prefabrication presents clear advantages because allows a high control level in every phase of manufacturing process. Several studies were carried out in different countries regarding to the use of recycled concretes in the field of precast components as for example: paving blocks [6,7], pavement flags [8,9], building blocks [10][11][12], kerbs and hollow blocks for flooring [13]. With the aim of doing some contribution in this field of research, in this study it was introduced the use of recycled mixed aggregates (RMA) in the manufacturing of prestressed joists for flooring systems.…”