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    Effects of Biocementation on some Properties of Cement-Based Materials Incorporating Bacillus Species Bacteria 

    Mutitu, Daniel Karanja; Munyao, Onesmus; Muthengia, Jackson; Mwirichia, Romano; Thiong'o, Karanja J.; Marangu, Joseph Mwiti (Taylor & Francis, 2019)
    There is a growing need in the construction industry to improve transfer and durability aspects of Portland pozzolana cement. Ureolytic bacteria have recently emerged as potential micro-organisms well known for precipitation ...
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    Pyroprocessing and the Optimum Mix Ratio of Rice Husks, Broken Bricks and Spent Bleaching Earth to Make Pozzolanic Cement 

    Nalobile, Protus; Wachira, Jackson Muthengia; Thiong'o, Joseph Karanja; Marangu, Joseph Mwiti (Elsevier, 2019)
    This paper presents the findings of an experimental investigation on optimizing pozzolanic activity of a blend of Rice Husks (RH), Spent Bleaching Earth (SBE) and Broken Bricks (BB) to form pozzolana that would have ...
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    Physicochemical Performance of Portland-Rice Husk Ash-Calcined Clay-Dried Acetylene Lime Sludge Cement in Sulphate and Chloride Media 

    Wachira, Jackson Muthengia; Thiong’o, Joseph Karanja; Marangu, Joseph Mwiti; Murithi, Leonard Genson (ResearchGate GmbH, 2019)
    This paper reports leach and/or intake of SO42−, Cl−, Ca2+, Na+, and K+ from and/or into cement mortar cubes made from a novel cementious material in naturally encountered environmental simulated media. The paper also ...
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    Review of Carbonation Resistance in Hydrated Cement Based Materials 

    Marangu, Joseph Mwiti; Thiong, Joseph Karanja; Muthengia, Wachira J. (Elsevier, 2019)
    Blended cements are preferred to Ordinary Portland Cement (OPC) in construction industry due to costs and technological and environmental benefits associated with them. Prevalence of significant quantities of carbon dioxide ...
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    Performance of Ground Clay Brick Mortars in Simulated Chloride and Sulphate Media 

    Musyimi, Festus Ngui; Wachira, Jackson Muthengia; Thiong’o, Joseph Karanja; Marangu, Joseph Mwiti (Hindawi, 2019)
    The durability of cement-based structures majorly depends on their resistivity to the aggressive media in the construction environment. The most aggressive ions commonly encountered in construction environment are chloride ...
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    Effect of Sulphate and Chloride Ingress on Selected Cements Mortar Prisms Immersed in Seawater and Leather Industry Effluent 

    Wachira, Jackson Muthengia; Ngari, Reginah Wangui; Thiong’o, Joseph Karanja; Marangu, Joseph Mwiti (Hindawi, 2019)
    Cement structures are major capital investments globally. However, exposure of cement-based materials to aggressive media such as chloride- and sulphate-laden environments such as coastal areas affects their performance. ...

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    Author
    Marangu, Joseph Mwiti (6)
    Wachira, Jackson Muthengia (4)Thiong’o, Joseph Karanja (3)Munyao, Onesmus (1)Murithi, Leonard Genson (1)Musyimi, Festus Ngui (1)Muthengia, Jackson (1)Muthengia, Wachira J. (1)Mutitu, Daniel Karanja (1)Mwirichia, Romano (1)... View MoreSubjectAlkaliphilic (1)Bacteria (1)Biocementation (1)Blended Cement (1)Broken Bricks (1)Calcite Precipitation (1)Calcium Carbide Residue (1)Cement (1)Civil Engineering (1)Materials Science (1)... View MoreDate Issued
    2019 (6)
    Has File(s)Yes (6)

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