Reuse of Ceramic Industry Sludge as a Component in Cement-Based Materials


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Reuse of Ceramic Industry Sludge as a Component in Cement-Based Materials

Author(s): M.I. Sánchez de Rojas1*, M. Frías1, E. Sabador1, C. Medina2, E. Asensio1, J. Rivera1

Publication: Special Publication

Volume: 320


Appears on pages(s): 4.1-4.18

Keywords: Cements, pozzolanic activity, supplementary cementitious materials, ceramic waste.

Date: 8/1/2017

Waste management initiatives have arisen around the world in recent years, attendant upon increasingly strict regulations that favour alternative solutions such as diminution and recycling. The sludge generated in ceramic industry glazing and milling, for instance, may be a source of alternative raw materials. The chemical, physical, morphological and mineralogical characterisation of such sludge conducted in this study aimed to determine whether it is appropriate for using in the manufacture of the cement. The kinetics of the pozzolanic reaction in a ceramic sludge/lime system were also assessed. The hydration products ensuing from that reaction induced a steeper rise in flexural strength than compressive strength in the ceramic sludge-bearing material, rendering the end product more flexible and elastic than portland cement.