Combined Effects of Non-Conforming Fly Ash and Recycled Masonry Aggregates on Mortar Properties
AbstractThis work evaluates the effects of using non-conforming fly ash (Nc-FA) generated in a thermoelectric power plant as filler material for mortars made with natural sand (NA) and recycled sand from masonry waste (FRMA). The incorporation of powdered recycled masonry filler (R-MF) is also tested as an alternative to siliceous filler (Si-F). Three families of mortars were designed to study: the effect of replacing Si-F with Nc-FA on mortars made with NA; the effect of replacing Si-F with Nc-FA on mortars made with 50% of NA and 50% of FRMA; and the effect of replacing Si-F with R-MF on mortars made with NA and FRMA. Replacing Si-F with Nc-FA is a viable alternative that increases the mechanical strength, the workability and durability properties and decreases the shrinkage. The use of FRMA and Nc-FA improved the mechanical strength of mortars, and it slightly increased the shrinkage. The replacement of Si-F with R-MF on mortars made with FRMA is not a good alternative, because it has a negative impact on all of the properties tested. This work can help both to reduce cement and natural resources’ consumption and to increase the recycling rate of Nc-FA and FRMA. View Full-Text
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Torres-Gómez, A.I.; Ledesma, E.F.; Otero, R.; Fernández, J.M.; Jiménez, J.R.; de Brito, J. Combined Effects of Non-Conforming Fly Ash and Recycled Masonry Aggregates on Mortar Properties. Materials 2016, 9, 729.
Torres-Gómez AI, Ledesma EF, Otero R, Fernández JM, Jiménez JR, de Brito J. Combined Effects of Non-Conforming Fly Ash and Recycled Masonry Aggregates on Mortar Properties. Materials. 2016; 9(9):729.Chicago/Turabian Style
Torres-Gómez, Ana I.; Ledesma, Enrique F.; Otero, Rocio; Fernández, José M.; Jiménez, José R.; de Brito, Jorge. 2016. "Combined Effects of Non-Conforming Fly Ash and Recycled Masonry Aggregates on Mortar Properties." Materials 9, no. 9: 729.
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