Experimental analysis of Pressed Adobe Blocks reinforced with Hibiscus cannabinus fibers

Y. Millogo, Jean-Claude Morel, J. E. Aubert, K. Ghavami

    Research output: Contribution to journalArticle

    93 Citations (Scopus)
    248 Downloads (Pure)

    Abstract

    There is an intense on-going search for less polluting materials and technologies, which consume little energy in their production, construction and/or utilization. Attention of the researchers has turned to materials, which found applications in engineering in pre-industrial times: local vegetable fibers and earth composites are one of the promising materials. This paper presents the results of an investigation in establishing the physical and mechanical properties of Hibiscus cannabinus fibers which have been used in the fabrication of Pressed Adobe Blocks (PABs). The PABs have been reinforced with 0.2–0.8 wt.% of 30 mm and 60 mm lengths of H. cannabinus fibers. The microstructural characteristics of the PABs composites were investigated using X-ray diffraction (XRD), thermal gravimetric analyses (TGA), scanning electronic microscopy (SEM) and video microscopy. It was established that the addition with 0.2–0.6 wt.% of 30 mm long fibers reduced the dimensions of the pores in the PABs with the improvement of their mechanical properties. However, the addition of 0.8 wt.% of 60 mm fibers had negative effects on the compressive strength. The elaborated Pressed Adobe Blocks specimens were suitable as building material with contribution for thermal comfort.
    Original languageEnglish
    Pages (from-to)71-78
    Number of pages8
    JournalConstruction and Building Materials
    Volume52
    Early online date30 Nov 2013
    DOIs
    Publication statusPublished - Feb 2014

    Keywords

    • Hibiscus cannabinus fibers
    • Pressed Adobe Blocks
    • Microstructural characteristics
    • Physical and mechanical characteristics
    • Sustainable building material

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