Non-industrial materials used in civil engineering are manufactured materials applied by craftsmen during short production cycles. These are generally local materials, earth, and stone, plant fibers with binder and such others found on the site or near the construction site. Their study and use have become promising in highly industrialized countries. For this study, we have selected adobe block as a construction material sample of the ground, which was mixed with some fibers stabilizers such as straw fibers and pine needle fibers in various counts distinctly. The adobe block specimens were retained from Had Laghoualem, Khemisset soil. The study purposes contain the mineralogical characterization of the soil and the fibers stabilizers, where the used sample making was analyzed by miscellaneous techniques such as (X-ray diffraction, infrared spectroscopy). The findings display that each of these materials contains carbonates calcite, kaolinite and quartz. Additionally, a thermal conductivity measurement was conducted on the adobe blocks stabilized with fibers samples using the CT-meter device. The thermal conductivity estimation infers that the adobe block thermal conductivity is inversely proportional with the percentage of straw fibers stabilizers, and pine needle fibers stabilizers. As a function of the content of fiber stabilizers in the samples, we found that straw fibers improve the mechanical behavior of adobe blocks as compared to pine needle fibers.

soil, adobe blocks, fiber, straw, pine needle, thermal conductivity, chemical composition.

Received: April 19, 2021;  Accepted: May 20, 2021; Published: June 15, 2021

How to cite this article: S. Nasla, K. Gueraoui, M. Cherraj, A. Samaouali, E. Nchiti, Y. Jamil, O. Arab and K. Bougtaib, An experimental study of the effect ofpine needles and straw fibers on the mechanical behavior and thermal conductivity of adobe earth blocks with chemical analysis, JP Journal of Heat and Mass Transfer 23(1) (2021), 35-56. DOI: 10.17654/HM023010035

This Open Access Article is Licensed under Creative Commons Attribution 4.0 International License

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