EGU22-12274
https://doi.org/10.5194/egusphere-egu22-12274
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Stone materials processing waste used as secondary raw material for construction adhesives: preliminary results.

Sossio Fabio Graziano1, Paolo Marone2, Antonio Trinchillo3, and Piergiulio Cappelletti3,4
Sossio Fabio Graziano et al.
  • 1Dipartimento di Farmacia, Università di Napoli Federico II, Napoli, Italia
  • 2IStituto Internazionale del Marmo – IS.I.M., Milano, Italia
  • 3Dipartimento di Scienze della Terra, Dell’ambiente e delle Risorse, Università di Napoli Federico II, Napoli, Italia
  • 4Centro Musei delle Scienze Naturali e Fisiche, Università di Napoli Federico II, Napoli, Italia

As is now widely known, any industrial activity produces wastes. These materials, more and more often, represent a logistic and environmental problem since they require regulations and treatments for disposal/storage that inevitably affect the general costs of the final product.

Wastes from stone materials processing, in short, retain all the mineralogical and compositional characteristics of the original materials even if, in some way, may be contaminated by the processing itself, or by wearing and tearing of industrial tools.

This research presents preliminary results from testing prototypes of construction adhesives made up recycling 1) a quartzite (India) stone waste mixed with 2) sand (also from India) as fine aggregates in mix design of the adhesives.

First, both wastes were characterized by physical, chemical and mineralogical points of view.

Particle size distribution along with X-ray Diffractometry, X-ray fluorescence and Scanning Electron Microscopy were carried out to acquire precise physical, mineralogical, and chemical information on wastes.

Experimental research started by mix designing different recipes considering a reference adhesive and a waste containing ones. Fresh doughs, as reported in European standard EN12004-2:2017, were cured for 28 days and used to stick on a concrete support three types of tiles with different grip: i) a polished metal plate, ii) a ceramic tile and a iii) natural stone slab. For each type a statistical valid number of sticked samples was tested.

After curing time, adhesive capabilities were tested by the Pull Off - Adhesion Test, as reported in European standard EN12004-2:2017, with very promising results, comparable to those obtained by normally marketed adhesives.

Further mix design additions useful for improving adhesive capabilities are currently under development.

Experimental procedures and results carried out in this research by using wastes from India can be safely extended to materials of different origins, proposing itself as an alternative method to storage for the reuse of these kind of wastes.

How to cite: Graziano, S. F., Marone, P., Trinchillo, A., and Cappelletti, P.: Stone materials processing waste used as secondary raw material for construction adhesives: preliminary results., EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-12274, https://doi.org/10.5194/egusphere-egu22-12274, 2022.