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Thermophysical and mechanical characterization of stabilized clay bricks for building thermal insulation

Content Provider	Springer Nature Link
Author	Meukam, P. umowe, A. Jant, Y. Duval, R.
Copyright Year	2003
Abstract	Cet article présente une étude expérimentale portant sur la caractérisation de matériaux locaux utilisés dans l'isolation thermique des bâtiments. Ces matériaux sont des briques de terre compressées et stabilisées au ciment. La conductivité thermique et la chaleur spécifique de matériaux à base de latérite incorporant de la pouzzolane et de la sciure de bois a été déterminée. Les résultats montrent que les blocs en latérite + pouzzolane ou en latérite + sciure de bois sont meilleurs isolants thermiques que les blocs en latérite simple. Cependant, ces matériaux composites utilisés pour l'enveloppe du bâtiment doivent avoir des résistances mécaniques suffisantes pour être utilisés dans la construction. La mesure des propriétés mécaniques telles que la résistance à la compression et la résistance à la traction a montré un faible écart entre les résistances des trois types de matériaux étudiés. Les résistances en traction de la latérite et de la latérite + pouzzolane sont voisines et environ deux fois plus élevées que celle de la latérite + sciure de bois. Ces résultats permettent de préciser les conditions d'utilisation optimale de ces matériaux pour l'enveloppe du bâtiment.An experimental study was carried out in order to determine the properties of local materials used for building thermal insulation. Cement stabilised compressed clay bricks were tested. The thermal conductivity and specific heat of laterite based materials incorporating pouzzolane or sawdust was determined. The experimental results showed that pouzzolane + laterite bricks or sawdust + laterite bricks give better thermal insulation than simple laterite bricks. However, these composite materials used for building shielding must present sufficient mechanical strength to the suitable for constructions. The measurement of mechanical properties such as compressive strength and tensile strength showed little difference between the strength of the three studied materials. The tensile strengths of the laterite and the laterite + pouzzolane bricks were similar. They were about two times that of the laterite + sawdust bricks. The obtained thermal and mechanical results permit to specify the optimal use conditions of the tested materials.
Starting Page	453
Ending Page	460
Page Count	8
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	36
Issue Number	7
e-ISSN	18716873
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical and Applied Mechanics Structural Mechanics Mechanical Engineering Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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