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: Symposium Paper

Volume: 320

Issue:

Appears on pages(s): 4.1-4.18

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

DOI: 10.14359/51701042

Date: 8/1/2017

Abstract:
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.