Open AccessBricks and Concrete Wastes as Coarse and Fine Aggregates in Sustainable Mortars
Author(s) -
Alessandra Mobili,
Chiara Giosuè,
Valeria Corinaldesi,
Francesca Tittarelli
Publication year - 2018
Publication title -
advances in materials science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 42
eISSN - 1687-8442
pISSN - 1687-8434
DOI - 10.1155/2018/8676708
Subject(s) - mortar , materials science , aggregate (composite) , durability , brick , calcareous , absorption of water , composite material , porosity , volume (thermodynamics) , geology , paleontology , physics , quantum mechanics
The total substitution by volume of natural coarse calcareous aggregate by coarse recycled brick aggregate (RBA) and coarse recycled concrete aggregate (RCA) has been investigated to produce more sustainable and environment-friendly mortars. Aggregates were also partially substituted by their fines at 12.5% by volume. Mortars have been tested in terms of mechanical, microstructural, and durability properties. Results show that it is feasible to replace a natural calcareous aggregate entirely by recycled aggregates. In particular, the obtained mortars, even if more porous and more prone to the water capillary absorption than that manufactured with natural aggregates, result in less stiffness and thus are less subjected to crack formation, more permeable to water vapour, and less susceptible to sulphate attack.