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Author(s): B. Nait-Ali, C. Leonelli, C. P. Nanseu, E. Kamseu, J. Pemndje, P. N. Lemougna, R. T. Tene Fongang, U. C. Melo, U. Chinje Melo

Keywords: biaxial flexural strength, building envelope, building envelopes, building materials, density, porosity, sawdust, scanning electron microscopy (sem), thermal conductivity, tps, transient plane source, transient plane source (tps) method

Abstract: A porous matrix was prepared using low-density sawdust and a metakaolin-based geopolymer paste. The matrix was prepared in order to evaluate its performance as a thermally insulating building envelope. The matrices that had approximately 4 MPa of bi-axial four points flexural strength were prepared in a ratio of geopolymer paste:sawdust of between 1:1 and 1:1.5, and the thermal conductivity of these matrices was between 0.2-0.3 W/m·K.

Reference: Energy and Buildings, 107 (2015) 113-122

DOI: 10.1016/j.enbuild.2015.08.009