Materiales de Construcción, Vol 69, No 334 (2019)

Characterisation of recycled ceramic mortars for use in prefabricated beam-filling pieces in structural floors


https://doi.org/10.3989/mc.2019.04518

P. Rubio de Hita
Departamento de Construcciones Arquitectónicas 1, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Spain
orcid http://orcid.org/0000-0003-4473-9635

F. Pérez-Gálvez
Departamento de Construcciones Arquitectónicas 1, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Spain
orcid http://orcid.org/0000-0002-1394-5113

M. J. Morales-Conde
Instituto Universitario de Arquitectura y Ciencias de la Construcción, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Spain
orcid http://orcid.org/0000-0002-7021-0914

M. A. Pedreño-Rojas
Departamento de Construcciones Arquitectónicas 1, Escuela Técnica Superior de Arquitectura, Universidad de Sevilla, Spain
orcid http://orcid.org/0000-0003-4622-8644

Abstract


This study analyses a procedure to manufacture mortars with different percentages of ceramic waste as partial replacement for aggregates. The study also examines the physical, chemical and mechanical properties of the new mortars, analysing substitution ratios that range from 10% to 50%. Prior to this, all the materials used in the production of the mortar were characterised using X-ray diffraction (XRD) and fluorescence (XRF). The objective was to determine the similarity between different types of ceramic waste, as well as the differences in the minerology and chemical composition with the aggregate.

The results of the study show that it is possible to obtain mortars with lower densities compared to the same product with no recycled content. The product’s characteristics make it ideal for the manufacture of prefabricated components for structural floors for rehabilitation works. Finally, the pieces are used in a real rehabilitation case study, highlightining the structural advantages.

Keywords


Mortar; Ceramic; Mechanical properties; Modelization; X-ray Diffraction (XRD)

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