EAI International Conference for Research, Innovation and Development for Africa

Research Article

Investigating Structural Cracks for Infrastructure: Case Study of Anonymous Hospital, in Zimbabwe

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  • @INPROCEEDINGS{10.4108/eai.20-6-2017.2270761,
        author={Tawanda Mushiri and Samson Shumba and Tinashe Matora and Stewart Mhizha and Michael Tumbare and Dakarai Taaka and Kudzie Musiwa},
        title={Investigating Structural Cracks for Infrastructure: Case Study of Anonymous Hospital, in Zimbabwe},
        proceedings={EAI International Conference for Research, Innovation and Development for Africa},
        publisher={EAI},
        proceedings_a={ACRID},
        year={2018},
        month={4},
        keywords={geotechnical investigations structural cracks bearing capacity sodic soils foundation underpinning},
        doi={10.4108/eai.20-6-2017.2270761}
    }
    
  • Tawanda Mushiri
    Samson Shumba
    Tinashe Matora
    Stewart Mhizha
    Michael Tumbare
    Dakarai Taaka
    Kudzie Musiwa
    Year: 2018
    Investigating Structural Cracks for Infrastructure: Case Study of Anonymous Hospital, in Zimbabwe
    ACRID
    EAI
    DOI: 10.4108/eai.20-6-2017.2270761
Tawanda Mushiri,*, Samson Shumba1, Tinashe Matora2, Stewart Mhizha2, Michael Tumbare1, Dakarai Taaka3, Kudzie Musiwa4
  • 1: Lecturer University of Zimbabwe
  • 2: Student University of Zimbabwe
  • 3: Engineer, Zimbabwe
  • 4: Lecturer, University of Zimbabwe
*Contact email: tawanda.mushiri@gmail.com

Abstract

The main objective of the research was to investigate the structural cracks for infrastructure at the anonymous Hospital in Zimbabwe and recommend the appropriate engineering solutions to the structural problems. Desk studies, geotechnical and materials investigations and investigations of the structural designs for the existing infrastructure was conducted. Geotechnical tests included sieve analysis, soil indicator, shear strength, direct cone penetrometer, chemical dispersive and California bearing ratio tests. Most of the cracks were structural cracks. The foundation depth was determined as 1.5 m for a bearing capacity more than 100 kPa. The causes of cracks included use of substandard bricks and construction materials, thick mortar and inadequate foundation depth. The dispersive test also proved that the soils are sodic in nature. It is recommended to use reinforced strip foundations and deep foundations when constructing infrastructure at the site. Heavy duty concrete foundation underpinning is recommended for the existing buildings.