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      • Faculty of Art, Design And Architecture
      • Department of Interior Architecture and Environmental Design
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      Study of physical and mechanical properties of aerogel-modified expanded perlite aggregate and clay (AEP/C) board

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      Author(s)
      Mercan, Elif
      Yilmazer, Semiha
      Date
      2022-12-26
      Source Title
      Construction and Building Materials
      Print ISSN
      0950-0618
      Publisher
      Elsevier
      Volume
      361
      Pages
      129602-1 - 129602-11
      Language
      English
      Type
      Review
      Item Usage Stats
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      Abstract
      The aerogel-modified expanded perlite aggregate and clay (AEP/C) composite boards were produced, and physical and mechanical properties were investigated. The aerogel modification of expanded perlite aggregate was carried out with optimization of the two-step acid-base catalyzed sol–gel method. The perlite shrinkage under high-temperature annealing was prevented by covering perlite surfaces with aerogel modification. The boards with aerogel-modified expanded perlite aggregate (AEP) wrapped by clay matrix were successfully produced. The unit volume mass (UVM) and specific gravity (SG) of AEP/C boards slightly increased to 0.55 ± 0.01 g/cm3 and 2.36 ± 0.01, respectively. On the other hand, produced AEP/C boards’ volume of voids of 36.23 ± 1.05 and water absorption (WA) of 83.91 ± 0.49 % were moderately lower than EPA/C. The mechanical strength of the AEP/C composite boards remained almost unchanged with 0.73 ± 0.04 N/mm2, and the aerogel modification had practically no effect on the mechanical strength of composite boards.
      Keywords
      Clay
      Silica aerogel
      Sol–gel method
      Permalink
      http://hdl.handle.net/11693/111403
      Published Version (Please cite this version)
      https://dx.doi.org/10.1016/j.conbuildmat.2022.129602
      Collections
      • Department of Interior Architecture and Environmental Design 243
      • Institute of Materials Science and Nanotechnology (UNAM) 2257
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