title: Use of industrial waste for the manufacturing of sustainable building materials.
abstract: Presently, appropriate waste management is one of the main requisites for sustainable development; this task is tackled by the material construction industry. The work described herein is focused on the valorization of granite waste through incorporation, as a filler-functional admixture, into cement-based mortar formulations. The main components of the waste are SiO(2) (62.1 %), Al(2)O(3) (13.2 %), Fe(2)O(3) (10.1 %), and CaO (4.6 %). The presence of iron oxides is used to develop the photocatalytic properties of the waste. Following heating at 700 °C, α-Fe(2)O(3) forms in the waste. The inclusion of the heated sample as a filler admixture in a cement-based mortar is possible. Moreover, this sample exhibits a moderate ability in the photodegradation of organic dye solutions. Also, the plastering mortars, in which the heated samples have been used, show self-cleaning properties. The preparation of sustainable building materials is demonstrated through the adequate reuse of the granite waste.
authors.affiliation: Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Córdoba, Spain.
authors.forename: Rafael
authors.initials: R
authors.lastname: Sugrañez
authors.forename: Manuel
authors.initials: M
authors.lastname: Cruz-Yusta
authors.forename: Isabel
authors.initials: I
authors.lastname: Mármol
authors.forename: Francisco
authors.initials: F
authors.lastname: Martín
authors.forename: Julián
authors.initials: J
authors.lastname: Morales
authors.forename: Luis
authors.initials: L
authors.lastname: Sánchez
mesh_terms: D002384:Catalysis; D003247:Conservation of Natural Resources / Q000379:methods*; D003252:Construction Materials; D007220:Industrial Waste; D055595:Mechanical Phenomena; D008903:Minerals / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry
chemical_list: D007220:Industrial Waste; D008903:Minerals; C007886:granite; D012822:Silicon Dioxide