Recourse to earth for low-cost housing in Nigeria

Olotuah, Abiodun Olukayode

doi:10.1016/s0360-1323(00)00081-0

Cited by 45 publications

(31 citation statements)

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“…Previous literature recommended the use of lime for any material containing >35% clay (Houben and Guillaud, 1994). Lime as stated earlier is more expensive than cement, judging from the situation in Nigeria (Olotuah, 2002). ii.…”

Section: Economy Of Stabilizationmentioning

confidence: 95%

“…Research by the Nigerian Building and Road Research Institute (NBRRI) has shown that the addition of 4% cement to soil improves the cohesive nature of the soil resulting in good quality bricks (Olotuah, 2002). They also noted that lime is more expensive than cement in some countries such as Nigeria.…”

Section: Cement + H 2 O Csh + Ca(oh) 2 Equationmentioning

confidence: 99%

“…Madeador, (1994) in (Olotuah, 2002) reported that there was at least 40% cost saving when using natural building materials compared to conventional manufactured materials in identical buildings. This figure is based on findings of an experiment by the Nigerian Building and Road Research Institute (NBRRI) in collaboration with the Federal Housing Authority (FHA).…”

Section: Cost Efficiencymentioning

confidence: 99%

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A review of the use of lateritic soils in the construction/development of sustainable housing in Africa: A geological perspective

Oyelami

Rooy

2016

Journal of African Earth Sciences

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Highlights• Appraisal of the previous work in the use of tropical soils in low cost, energy efficient housing development.• It established CEBs as sustainable building materials for a sustainable environment.• Identification of lateritic soils as suitable material in the production of CEBs.• Established the importance of parent rock material (its type and mineralogy) in strength and durability of CEBs.• Discouraging the common practice of firing clay bricks for the sake of sustainable environment. AbstractLateritic soils have been described as highly weathered tropical or sub-tropical residual soils with varying proportions of particle sizes ranging from clay size to gravel, usually coated with sesquioxide rich concretions. It is sometimes referred to as brick earth based on its use. The use of laterite and lateritic soils have been found to promote the realization of decent housing and bridging the housing deficit, especially in Africa.The author has attempted to review available information on the recent trends in building bricks and housing development with the aim of identifying a suitable soil material that will meet the present challenge of sustaining the environment without costing too much and maintaining a high standard of strength, durability and aesthetics. A critical review of laterite and lateritic soils from a geological point of view indicated these soils to be one of the best natural materials used in the production of compressed earth bricks. Lateritic soils are mostly well graded, comprising both cohesive (silt and clay) and cohesionless (sands and gravels) soil fraction, it contains sesquioxides and clay minerals which are very useful in the natural binding process as well as in the presence of most chemical binders.Compressed earth bricks are mainly composed of raw earth materials (soil) with their cohesion due principally to the clay fraction present in both humid and dry states. CEB's promote building in a 'sustainable' way and offers a good prospect to using our resources in an efficient manner while creating dwellings that improve human health, well-being and preserving a better environment, with an affordable and natural alternative.

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Section: Economy Of Stabilizationmentioning

confidence: 95%

Section: Cement + H 2 O Csh + Ca(oh) 2 Equationmentioning

confidence: 99%

Section: Cost Efficiencymentioning

confidence: 99%

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A review of the use of lateritic soils in the construction/development of sustainable housing in Africa: A geological perspective

Oyelami

Rooy

2016

Journal of African Earth Sciences

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“…In Nigeria, tests to improve the durability and affordability of earth building, which has been promoted as an alternative for low cost housing for the poor, were carried out ( Olotuah, 2002 ). It has also been reported that compressed stabilised earth blocks were ' successfully ' used in low income housing in Sudan ( Adam and Agib, 2001 ); users ' perceptions were however not recorded.…”

Section: State-of-art Review On Inhibitors Influencing the Adoption Omentioning

confidence: 99%

Inhibitors of adopting stabilised earth construction to address urban low cost housing crisis: An understanding by construction professionals

Zami

Lee²

2011

J Build Apprais

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is a lecturer at the School of Architecture, Planning and Housing, University of KwaZulu Natal, South Africa. He lectured at the Harare Polytechnic, UZ, NUST, and University of Salford for 13 years besides working as an architect with practices for 10 years. His research interests include landscape and urban design, earth construction and housing. He has published over 25 journal and conference papers in these fi elds including one book. Dr Zami completed a BArch degree at the Khulna University, Bangladesh, MPhil in Architecture degree at the NUST, Zimbabwe and a PhD degree at the University of Salford, UK. Angela Leeis a Reader at the School of the Built Environment, University of Salford, UK. She also holds the position of Director of Postgraduate Taught Studies and Programme Director for BSc (Hons) Architectural Design & Technology. She has worked on various EU, CIB and EPSRC-funded projects, including Revaluing Construction, nD Modelling and the Process Protocol. Her research interests include design management, performance management, process management, product and process modelling and requirements capture. She has published over 100 journal and conference papers in these fi elds, including three books. Dr Lee completed a BA (Hons) in Architecture at the University of Sheffi eld, and a PhD at the University of Salford. ABSTRACT Stabilised earth is an alternative building material which is comparatively cheaper than conventional building material in the construction of urban low cost housing. In addition, stabilised earth construction reduces CO 2 emission and is environmentally sustainable. Despite all the benefi ts of this building material there are potential inhibitors which make stabilised earth construction unpopular among the construction professionals. This article aims to identify and highlight these inhibitors from the literature in the light of its use on site, performance, image in the societies and cultures and validates through a structured research method. First, a critical literature review method is adopted in this article to investigate and identify the inhibitors infl uencing the adoption of this building material to address urban low cost housing crisis and second, the identifi ed inhibitors is validated through a Delphi technique.

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“…Some have been carrying out research in the field of intermediate earth technology for many years (Adam and Agib, 2001;CIDRLD, 2004;Olotuah, 2002). Others adopted western building materials and techniques on a large scale, but the scarcity and increasing prices of these materials has led to more recent consideration of the potential to use readily available earth -a new perspective encouraged by the increasing awareness at political, intellectual, architectural and cultural levels.…”

Section: Introductionmentioning

confidence: 99%

Earth construction in Algeria between tradition and modernity

Baiche

Osmani

Walliman

et al. 2017

Proceedings of the Institution of Civil Engineers - Constructio

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In the south of Algeria, many indigenous settlements have been built using local earth construction techniques; in the north, despite the availability of suitable earth, only a few rural contemporary settlements have been built using ‘improved’ earth construction. This paper adopts a case study approach to examine and compare structural deficiencies of two earth-built housing settlements in different regions in Algeria. In the indigenous earth settlement in the south, where adobe was used in combination with local timber and stones, the dwellings exhibit many structural defects. Stabilisation of the soil and introduction of modern materials in the contemporary rammed earth settlement in the north has not, however, helped produce structurally adequate dwellings. These dwellings also exhibited many cracks and debonding of rendering, and thus did not fulfil the requirements and aspirations of their occupants. The study concludes that for a potentially successful earth building scheme there are inter-related factors that should be considered: selection of an appropriate soil and construction technique, implementation of a suitable structural design, construction and post-completion processes, availability of relevant skills and provision of adequate training on the construction technique.

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Recourse to earth for low-cost housing in Nigeria

Cited by 45 publications

References 1 publication

A review of the use of lateritic soils in the construction/development of sustainable housing in Africa: A geological perspective

A review of the use of lateritic soils in the construction/development of sustainable housing in Africa: A geological perspective

Inhibitors of adopting stabilised earth construction to address urban low cost housing crisis: An understanding by construction professionals

Earth construction in Algeria between tradition and modernity

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