PERFORMANCE CHARACTERISTICS OF A MODIFIED COMPOSITE MATERIAL CONTAINING INORGANIC LIGHTWEIGHT AGGREGATES

Authors

  • Lуubеn Lakov Bulgarian Academy of Sciences, Institute of Metal Science Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”
  • Bojidar Jivov Bulgarian Academy of Sciences, Institute of Metal Science Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”
  • Yonka Ivanova Sofia University “St. Kliment Ohridski” Faculty of Physics, Sofia, Bulgaria
  • Krasimira Toncheva Bulgarian Academy of Sciences, Institute of Metal Science Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”

DOI:

https://doi.org/10.59957/jctm.v59.i6.2024.16

Keywords:

lightweight aggregates, thermal conductivity coefficient, weighted sound reduction index

Abstract

A modified thermal and sound insulation composite material, potentially applicable in the field of modern construction, has been developed. Experimental samples based on foam glass aggregate (made from recycled waste glass), perlite (with fraction size up to 3 mm) and hydraulic binders were obtained. The acoustic and mechanical characteristics and the thermal conductivity coefficient of the prepared series of composite samples were studied. Values for Rw in the range from 38 to 46 dB and for λ from 0.04 to 0.15 W m-1 K-1 were established. The influence of the different components of the composition on the values of the studied performance indicators and the structure of the composite was analysed.

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Published

2024-11-06

Issue

Vol. 59 No. 6 (2024)

Section

Articles

License

Copyright (c) 2024 Journal of Chemical Technology and Metallurgy

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.