Determination of Thermal Conductivity of Interlocking Compressed Stabilized Earth Block (CSEB)

International Journal of Recent Engineering Research and Development (IJRERD) 

IJRERD Vol. 05, Issue 01, January 2020, page 1-8

Authors: 

Bakam V. A., Mbishida M. A., Danjuma T., Zingfat M. J., Hamidu L. A. J., Pyendang Z. S.

Abstract:

 Over the years, the Nigerian Building and Road Research Institute (NBRRI) has been involved in the research and development of an interlocking Compressed Stabilized Earth Block (CSEB), produced from laterite stabilized with cement of not less than 5% weight using a minimum compaction effort of 3N/mm2. This investigation concerned itself with the determination of Thermal Conductivity of the NBRRI interlocking CSEB with the aim of ascertaining its performance for a wide range of application such as its Thermal comfort for the building occupants when in used towards achieving sustainability in construction. Several laboratory and workshop activities were carried out in the formulation, molding, curing and testing of the Blocks using standard procedures. Geotechnical properties of the laterite showed a Plastic Limit (PL) of 33.06, Liquid Limit (LL) of 59.00 and Plasticity Index (PI) of 25.94. The laterite is classified as silty sand, while at 5% stabilization of the laterite, the blocks proved to have an average Coefficient of Thermal Conductivity (kavg) of 0.4841 Wm-1K-1. Therefore, NBRRI CSEB can be concluded to be environmentally friendly and energy efficient walling material.

keywords: 

Laterite, Thermal Conductivity, CSEB, NBRRI

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