Browsing by Author "Ohijeagbon, I.O"

Now showing 1 - 3 of 3
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    DEVELOPMENT OF PAVING TILES COMPOUNDED WITH PULVERIZED CORNCOB CHARCOAL
    (Journal of Production Engineering, 2016-12-03) AJAO, KABIRU SULEIMON; Ohijeagbon, I.O; Adekunle, A. S; Olusegun, S.D
    The current trend all over the world is to minimize environmental pollution through wastes recycling. Thus, paving tiles’ specimens of dimensions 198mm x 98mm x 56mm were produced in the laboratory using various mix ratios of granite particles and pulverized corncob charcoal. Wood charcoal dust was used as control and cement as binder. Batching was by volume and a constant water/cement ratio of 0.7 was used. The tiles’ physical and mechanical properties were determined. Results obtained showed that as the percentage of pulverized corncob charcoal in the mixture aggregate increases, the flexural strength, compressive strength and bulk density of the tiles decreases, while a progressive increase was experienced in water absorption for 20% and 15% cement addition. Significant similarities were observed in the properties of experimental tiles produced with addition of pulverized corncob charcoal and those with addition of wood charcoal dust which was used as control. 30% and 10% addition of pulverized corncob charcoal for 20% and 15% cement content tiles respectively were recommended. Recycling of corncob as a constituent material of paving tiles is feasible.
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    Impact of Production Methods on Some Engineering Properties of Interlocking Tiles
    (Faculty of Engineering and Technology, Adeleke University, Ede, Nigeria., 2019-04-10) AJAO, KABIRU SULEIMON; Ohijeagbon, I.O; Adekunle, A.S; Omoniyi, P.O; Adeoye, B.B
    Interlocking tiles as a good solution to external floor coverings has been one of the choicest in all cities of Nigeria. This research was aimed at examining the effect of various production methods used among artisans within Ilorin metropolis on the physical and mechanical properties of commercially produced interlocking tiles. Also, the laboratory production of the interlocking tiles adopting the commercially used methods was carried out. Results of the physical and mechanical properties of interlocking tiles produced showed bulk density of tiles ranging from 2.04 to 2.26 g/cm3, water absorption capacity ranging from 4.87 to 7.81%. Maximum compressive strength was also observed in interlocking tiles produced using vibration compaction method and an average compressive strength of 20.51 MPa was obtained compared to mortar method with average compressive strength of 13 MPa. Flexural strength for vibration compaction method was peak at 1.25 MPa for 8 mm particle size interlocking tiles and minimum at 0.89 MPa for 4 mm particle size interlocking tiles. Interlocking tiles with 4 mm grain size had the maximum mechanical strength. An efficient and sustainable method of production of interlocking tiles can be adopted and replicated by all commercial tiles
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    Investigation of Brinell hardness and compressive strength of pulverized cow bones and lateritic paving tiles
    (Adeleke University Journal of Engineering and Technology, 2018) Omoniyi, P.O; Ohijeagbon, I.O; Aweda, J.O.; Ibitoye, S.E.
    The relationship between brinell hardness and compressive strength of lateritic paving tiles compounded with pulverized cow bones (PCB) with cement as a binder was investigated. The study involved production and experimental testing of paving tiles. Empirical models for prediction of Brinell hardness were also developed. Test specimens were produced using laterite, silica sand and PCB, with addition of cement as a binder ranging from 2010% by weight. The relationship between brinell hardness and compressive strength for each level of cement content was carried out using linear regression analysis. Results showed a strong correlation between Brinell hardness and compressive strength for 15% cement composition (R =0.9814) to be maximum. Coefficient of alienation of 35.01%, 13.64% and 76.52% for 20%, 15%, 10% cement content respectively were derived, which shows the proportion of variance not shared among the parameters.