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Mechanical Behavior of Masonry Mortars Made with Recycled Mortar Aggregate

División Académica de Ingeniería y Arquitectura (DAIA-UJAT), Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa de Méndez km. 1, Cunduacán, Tabasco CP 86690, Mexico
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Materials 2020, 13(10), 2373; https://doi.org/10.3390/ma13102373
Received: 25 April 2020 / Revised: 17 May 2020 / Accepted: 19 May 2020 / Published: 21 May 2020
(This article belongs to the Special Issue Properties and Novel Applications of Recycled Aggregates)
Recycling is an important habit to avoid waste. This paper evaluates the performance of masonry mortar, elaborated by replacing natural sand with recycled fine aggregate (RFA) obtained from mortar. Five families of mixtures were prepared with different replacement proportions: 20%, 40%, 60%, and 100%. A 1:4 volumetric cement-to-aggregate ratio was used for all mixtures by experimentally adjusting the amount of water to achieve the same consistency of 175 ± 5 mm. The effects of the following procedures were analyzed: (1) the use of a deconstruction technique to collect the RFA, (2) pre-wetting of the aggregates, and (3) the use of a commercial plasticizer. Experimental results show that it is possible to use this type of recycled fine aggregate as a substitute for natural sand by up to 60% in the manufacture of masonry mortar without significantly affecting its properties. View Full-Text
Keywords: construction and demolition waste; recycled fine aggregate; mortars; sustainable construction; recycled aggregates construction and demolition waste; recycled fine aggregate; mortars; sustainable construction; recycled aggregates
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Mora-Ortiz, R.S.; Munguía-Balvanera, E.; Díaz, S.A.; Magaña-Hernández, F.; Del Angel-Meraz, E.; Bolaina-Juárez, Á. Mechanical Behavior of Masonry Mortars Made with Recycled Mortar Aggregate. Materials 2020, 13, 2373.

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