Department of Architecture
Permanent URI for this collectionhttps://irepos.unijos.edu.ng/handle/123456789/11229
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Item Adopting Stabilized Earth Construction to Address Urban Low-cost Housing Crisis in Jos, Nigeria(Journal of Ergonomics Studies and Research, 2018) Daniel A. A.; Benjamin G. K.; Tali J. O.Shelter is one of the basic needs of mankind, while housing is a form of shelter which has profound impact on health, welfare and productivity of individuals. In developing nations (such as Nigeria), this basic necessity of life (housing) has been kept far from the reach of the low-income earner. In this strive for shelter; stabilized earth is an alternative building material which is comparatively cheaper than conventional building materials used in the construction of houses in urban centers. Due to modernization, earth is now associated to villagers or only used in the construction of historical buildings. It is no doubt that we can use our abundant resources to bridge the housing gap between the high income and the low income earner and give not only shelter but with comfort and providing shelter at an affordable rate to the low income earner. Three case studies were used for the purpose of this research. The findings of the study revealed a 30% reduction in cost of constructing a building with adobe bricks over sandcrete hollow blocks. The research identified and highlighted the cost effectiveness, thermal insulation and the durability of clay (earth). The study concluded that the use of earth should be employed by professionals in the construction industry to increase its acceptability by the public.Item Flexural Strength Characteristics of Fly Ash Blended OPC Reinforced Sorrel Fibre Concrete(2016) Goh Danjuma Joseph; Williams Frank Ndanus; John James Anumah; Kingsley Onyeka AugustineThis research work studied the flexural strength characteristics of Fly Ash blended ordinary Portland cement (OPC) concrete reinforced sorrel fibre. This study considered three mix ratios of concrete specimens and were prepared and cast into 100mm × 100mm × 500mm mould of: (1)1:2:4 mix ratio of plain concrete as control sample (2) concrete sample of 1:2:4 mix ratio, reinforced with 1.5% volume fraction of 50mm average length of sorrel fibre (3) Concrete specimens of 1:2:4 mix ratio with binders containing 90% (OPC) + 10% (FA); 80% (OPC) + 20% (FA) and 70% (OPC) + 30% (FA). The water binder ratio was kept constant at 0.6. All the blended samples were reinforced with 1.5% by volume fraction of heat treated sorrel fibre of 50mm average length. The beams specimens were cast for flexural strength tests. The concrete samples were tested in flexure at 7, 28 and 90 days. With the addition of heat treated sorrel fibre, flexural strength increased from 5.0N/mm2, 6.0 N/mm2 and 7.5N/mm2 for optimum blend at 7, 28 and 90days respectively. For the blend containing 10% (FA) + 1.5% volume average length of heat treated sorrel fibre recorded the highest flexural strength mentioned above. The properties of sorrel fibre reinforced concrete was improved with the optimum blend of Fly Ash (FA) and Heat Treated Sorrel Fibre (HSF).