Effect of moisture content on the mechanical characteristics of rammed earth

Q. B. Bui, Jean-Claude Morel, S. Hans, P. Walker

    Research output: Contribution to journalArticle

    83 Citations (Scopus)
    11 Downloads (Pure)

    Abstract

    In this paper, influence of moisture content on the mechanical characteristics of rammed-earth has been studied. Samples from different soils (sandy, clayey, stabilised) were manufactured and tested in unconfined compression at several moisture contents. Compressive strength, elastic modulus and Poisson's ratio were determined. A simplified method to measure the suction within rammed earth samples has been developed and validated. The variation of mechanical characteristics related to moisture content and suction are presented. This paper shows that a slight increase in the moisture content of dry rammed-earth is not followed by sudden drop in wall strength. Qualitative explanations at the nano-scale are presented.
    Original languageEnglish
    Pages (from-to)163-169
    JournalConstruction and Building Materials
    Volume54
    Early online date17 Jan 2014
    DOIs
    Publication statusPublished - Mar 2014

    Fingerprint

    Moisture
    Earth (planet)
    Poisson ratio
    Compressive strength
    Elastic moduli
    Soils

    Keywords

    • Rammed earth
    • Cohesion
    • Suction
    • Compressive strength
    • Young modulus
    • Poisson’s ratio

    Cite this

    Effect of moisture content on the mechanical characteristics of rammed earth. / Bui, Q. B.; Morel, Jean-Claude; Hans, S.; Walker, P.

    In: Construction and Building Materials, Vol. 54, 03.2014, p. 163-169.

    Research output: Contribution to journalArticle

    @article{9dc044377b62488c91fd58adaecc1b34,
    title = "Effect of moisture content on the mechanical characteristics of rammed earth",
    abstract = "In this paper, influence of moisture content on the mechanical characteristics of rammed-earth has been studied. Samples from different soils (sandy, clayey, stabilised) were manufactured and tested in unconfined compression at several moisture contents. Compressive strength, elastic modulus and Poisson's ratio were determined. A simplified method to measure the suction within rammed earth samples has been developed and validated. The variation of mechanical characteristics related to moisture content and suction are presented. This paper shows that a slight increase in the moisture content of dry rammed-earth is not followed by sudden drop in wall strength. Qualitative explanations at the nano-scale are presented.",
    keywords = "Rammed earth, Cohesion, Suction, Compressive strength, Young modulus, Poisson’s ratio",
    author = "Bui, {Q. B.} and Jean-Claude Morel and S. Hans and P. Walker",
    year = "2014",
    month = "3",
    doi = "10.1016/j.conbuildmat.2013.12.067",
    language = "English",
    volume = "54",
    pages = "163--169",
    journal = "Construction and Building Materials",
    issn = "0950-0618",
    publisher = "Elsevier",

    }

    TY - JOUR

    T1 - Effect of moisture content on the mechanical characteristics of rammed earth

    AU - Bui, Q. B.

    AU - Morel, Jean-Claude

    AU - Hans, S.

    AU - Walker, P.

    PY - 2014/3

    Y1 - 2014/3

    N2 - In this paper, influence of moisture content on the mechanical characteristics of rammed-earth has been studied. Samples from different soils (sandy, clayey, stabilised) were manufactured and tested in unconfined compression at several moisture contents. Compressive strength, elastic modulus and Poisson's ratio were determined. A simplified method to measure the suction within rammed earth samples has been developed and validated. The variation of mechanical characteristics related to moisture content and suction are presented. This paper shows that a slight increase in the moisture content of dry rammed-earth is not followed by sudden drop in wall strength. Qualitative explanations at the nano-scale are presented.

    AB - In this paper, influence of moisture content on the mechanical characteristics of rammed-earth has been studied. Samples from different soils (sandy, clayey, stabilised) were manufactured and tested in unconfined compression at several moisture contents. Compressive strength, elastic modulus and Poisson's ratio were determined. A simplified method to measure the suction within rammed earth samples has been developed and validated. The variation of mechanical characteristics related to moisture content and suction are presented. This paper shows that a slight increase in the moisture content of dry rammed-earth is not followed by sudden drop in wall strength. Qualitative explanations at the nano-scale are presented.

    KW - Rammed earth

    KW - Cohesion

    KW - Suction

    KW - Compressive strength

    KW - Young modulus

    KW - Poisson’s ratio

    U2 - 10.1016/j.conbuildmat.2013.12.067

    DO - 10.1016/j.conbuildmat.2013.12.067

    M3 - Article

    VL - 54

    SP - 163

    EP - 169

    JO - Construction and Building Materials

    JF - Construction and Building Materials

    SN - 0950-0618

    ER -