Use of Industrial Waste for the Manufacturing of Sustainable Building Materials

Authors

  • Rafael Sugrañez,

    1. Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14071-Córdoba (Spain), Fax: 34-957-218621
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  • Dr. Manuel Cruz-Yusta,

    1. Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14071-Córdoba (Spain), Fax: 34-957-218621
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  • Dr. Isabel Mármol,

    1. Grupo Puma S.L. Avda. Agrupación Córdoba n° 17, Córdoba (Spain)
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  • Dr. Francisco Martín,

    1. Departamento de Ingeniería Química, Universidad de Málaga, Campus de Teatinos, Facultad de Ciencias, 29071-Málaga (Spain)
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  • Dr. Julián Morales,

    1. Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14071-Córdoba (Spain), Fax: 34-957-218621
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  • Dr. Luis Sánchez

    Corresponding author
    1. Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14071-Córdoba (Spain), Fax: 34-957-218621
    • Departamento de Química Inorgánica e Ingeniería Química, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, 14071-Córdoba (Spain), Fax: 34-957-218621
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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 SiO2 (62.1 %), Al2O3 (13.2 %), Fe2O3 (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-Fe2O3 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.

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