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Incorporation of Polymers into Calcined Clays as Improved Thermal Insulating Materials for Construction

Abstract

Calcined clay is a Type Q supplementary cementing material according to EN197-1:2000. It possesses lower thermal conductivity than cement. To further improve its thermal insulation property, polymer-calcined clay complexes (PCCs) were produced in a onepot synthesis. Two contrasting polymers, polystyrene (PS) and polyethylene glycol (PEG), were employed. The hydrophilicity of the polymers influenced the thermal conductivity of PCC. Hydrophilic PEG entrapped more water molecules on clay layers than the hydrophobic PS, making PEG-PCC more thermally conducting than PS-PCC. Contaminants in calcined clays played a role in affecting the overall thermal conductivity. PCC can improve thermal insulation properties for future construction applications.
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Category

Academic article

Language

English

Author(s)

  • Serina Ng
  • Bjørn Petter Jelle

Affiliation

  • SINTEF Community / Architecture, Materials and Structures
  • Norwegian University of Science and Technology

Year

2017

Published in

Advances in Materials Science and Engineering

ISSN

1687-8434

Volume

2017

Issue

Article ID 6478236

View this publication at Norwegian Research Information Repository