Session

Civil Engineering, Infrastructure and Environment

Description

There is growing interest in using thermally treated clays as supplementary cementitious materials (SCMs) in construction. The suitability of the clays as SCMs varies according to their origin and composition. Clay minerals undergo several changes when heated, including dehydration, dehydroxylation, structural collapse, and new phases formation. This paper aims to evaluate the structural changes and modifications induced by thermal treatment of some selected clays from Albania. After grinding and sieving, the selected clays are treated thermally for one hour in different temperature values, ranging from 550 to 750°C. The raw and treated clays are analysed with FTIR spectrometer in order to identify the structural changes of clays in each treatment temperature. The optimal value of the treating temperature that ensures the complete modification of clays has

Keywords:

Calcined clays, natural clays, FTIR spectra, thermal treatment, SCMs been identified.

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-982-15-3

Location

UBT Kampus, Lipjan

Start Date

25-10-2024 9:00 AM

End Date

27-10-2024 6:00 PM

DOI

10.33107/ubt-ic.2024.303

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Oct 25th, 9:00 AM Oct 27th, 6:00 PM

Fourier Transform Infrared Spectroscopic characterization of raw and thermally treated clays from Albania

UBT Kampus, Lipjan

There is growing interest in using thermally treated clays as supplementary cementitious materials (SCMs) in construction. The suitability of the clays as SCMs varies according to their origin and composition. Clay minerals undergo several changes when heated, including dehydration, dehydroxylation, structural collapse, and new phases formation. This paper aims to evaluate the structural changes and modifications induced by thermal treatment of some selected clays from Albania. After grinding and sieving, the selected clays are treated thermally for one hour in different temperature values, ranging from 550 to 750°C. The raw and treated clays are analysed with FTIR spectrometer in order to identify the structural changes of clays in each treatment temperature. The optimal value of the treating temperature that ensures the complete modification of clays has