Investigating the suitability of the local soil in Jonglei State for compresses earth block making

Bior, Gabriel Deng (2015) Investigating the suitability of the local soil in Jonglei State for compresses earth block making. MSc dissertation, University of Portsmouth.

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    Abstract

    The purpose of this project was to determine whether the soil in Jonglei State, South Sudan is suitable for making compressed earth blocks which would be used for construction of houses.
    Soil from Yuai, one of the towns of Jonglei State was collected and a classification analysis was done by doing a particle size distribution test then using the results, brick earth was proportioned into its different particle sizes so as to form a soil identical or with the same grading as the soil tested from Jonglei State.
    Compressed earth blocks were then made with varying concentrations and fibre length. 50mm, 100mm and 150mm fibre length were used at concentrations of 0.3%, 0.5% and 0.7% and there compressive and tensile strength tested and compared to the control blocks which had no fibre in them.
    From the compressive strength test and tensile strength test results, the control blocks which had no fibres produced the highest compressive strength value of 4.3, though the stabilized blocks with fibre showed positive results for tensile strength.
    It was also note that compressive strength decreased with increase in fibre length and the tensile strength for the stabilized blocks decrease with increase of fibre length. Hence the soil was found suitable for compressed earth block making.
    Despite the fact that the compressive strength of the blocks was lower than the control, the compressive strength of the stabilized blocks increased with increase in concentration obtaining an optimum where the strength started to decrease with increase in concentration .

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Jane Polwin
    Date Deposited: 21 Oct 2015 16:41
    Last Modified: 21 Oct 2015 16:41
    URI: http://eprints.port.ac.uk/id/eprint/18585

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