The geology and geotechnical properties of the black cotton soils of northeastern nigeria

Ola, S. A.

doi:10.1016/0013-7952(78)90019-4

Cited by 68 publications

(47 citation statements)

References 3 publications

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“…Different authors have established that landform influences the formation and characteristics of soils, especially lateritic soils (e.g. Adeyemi, 2003;Bourman and Ollier, 2003;Mcfarlane, 1990;Ola, 1978). The study area covers the towns of Osogbo (OS) and Ado-Ekiti (ADK) in Osun and Ekiti States respectively in Nigeria.…”

Section: The Study Areamentioning

confidence: 99%

Geotechnical characterisation of lateritic soils from south-western Nigeria as materials for cost-effective and energy-efficient building bricks

Oyelami

Rooy

2016

Environ Earth Sci

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Lateritic soils which have been described as highly weathered tropical or sub-tropical residual soils, were studied with an attempt to establish its suitability or otherwise as sustainable material in building bricks and housing development that will meet the present challenge of sustaining the environment without costing too much and maintaining a high standard of strength, durability and aesthetics. Index properties of the tested lateritic soils revealed them as mostly well-graded, comprising both cohesive (silt and clay) and cohesionless (sand and gravel) soil fraction. The geotechnical analyses on the studied lateritic soil revealed a strong compressive strength with a relatively sound dry density which could guarantee a good durability in resulting bricks made from these soil materials.Further test on the strength and durability of the compressed earth bricks (CEBs) made from these lateritic soils revealed a brick with compressive strength ranging between 6.33 and 15.57 MPa which are considered to be good strength coupled with its sound durability strength established over a period more than one year under a complete cycle of weather and seasonal conditions.In conclusion, lateritic soils from the study area were found to be suitable as materials for bricks (CEB) with good compressive and durability strength which qualifies them sustainable and cost effective materials for lowcost housing development.

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Section: The Study Areamentioning

confidence: 99%

Geotechnical characterisation of lateritic soils from south-western Nigeria as materials for cost-effective and energy-efficient building bricks

Oyelami

Rooy

2016

Environ Earth Sci

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“…(Lopez-Lara et al 1999) The optimum lime content for maximum strength gain in stabilizing soil with lime according to Eades and Grim (1960) is 4 -6 % for Kaolinite, about 8 % for Illite and Montmorillonite. Ola (1978) found a linear relationship between the strength of lime-stabilized black cotton soil and lime content (up to 10 %). Akawwi and Al-Kharabsheh (2002) reported that best result was obtained when 3.5 -5 % quicklime by dry weight of soil was used to improve and stabilize expansive soils in Amman, Jordan.…”

Section: Introductionmentioning

confidence: 98%

Effect of carbide waste on the properties of Makurdi shale and burnt bricks made from the admixtures

Agbede¹,

Joel²

2011

AJSIR

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A study was undertaken to investigate the effects of a byproduct of oxy-acetylene gas welding, carbide waste (CW) on the engineering properties of Makurdi shale blended with 0 to 8 % of CW for use in brick production. Atterberg limits and specific gravity of shale blended with CW were determined. Compressive strength and water absorption tests were conducted on triplicate cube specimens of each admixture which were fired to 800 o C. In addition, X-ray fluorescence tests were performed on the shale and CW. Results showed that Makurdi shale comprise mainly of silica and alumina while CW was essentially calcium oxide. The results suggested that 4 % CW mix was suitable to stabilize the shale. The study also showed that heat treatment of Makurdi shale and Makurdi shale : CW admixtures yielded bricks of good quality.

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“…Nigerian black clays are formed from calcareous materials such as ancient alluvium; clayey and shaly sediments or lagoonal clays; and Olivine basaltic rocks. The absence of quartz leads to the formation of fine-grained, mostly clay-size, plastic soil which is highly impermeable and easily becomes water logged (Ola, 1978). The lagoonal clay-derived black clay soils are formed in geological environments known locally as 'Firki' plains and generally exhibit gilgai micro-relief (Lumbin and Esu, 1988).…”

Section: Introductionmentioning

confidence: 98%

“…Within Africa, these soils occur in northeastern Nigeria, Cameroun, Lake Chad Basin, Sudan, Ethiopia, Kenya and other countries in eastern Africa (Morin, 1971). The Lake Chad Basin is the only extensive lacustrine deposit of black clay soils in Africa (Morin, 1971;Ola, 1978).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation and Prediction of the Swelling Characteristics of Nigerian Black Clays

Nwaiwu

Nuhu²

2006

Geotech Geol Eng

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The swelling characteristics of black clays from two major areas of occurrence in Borno State, Nigeria, were investigated in the laboratory. Clay samples derived from lagoonal clay deposits showed high swelling tendencies while those samples derived from Olivine basalts showed medium to high swelling tendencies. Although interparticle swelling was the dominant swelling mechanism, soil samples with higher clay contents exhibited higher swelling tendencies. The developed predictive models show that the free swell percentage as well as the swelling pressure can be predicted from measured values of electrical conductivity, specific gravity, clay content and plasticity index. On the other hand, swell percent can be predicted from measured values of electrical conductivity and specific gravity only.

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The geology and geotechnical properties of the black cotton soils of northeastern nigeria

Cited by 68 publications

References 3 publications

Geotechnical characterisation of lateritic soils from south-western Nigeria as materials for cost-effective and energy-efficient building bricks

Geotechnical characterisation of lateritic soils from south-western Nigeria as materials for cost-effective and energy-efficient building bricks

Effect of carbide waste on the properties of Makurdi shale and burnt bricks made from the admixtures

Evaluation and Prediction of the Swelling Characteristics of Nigerian Black Clays

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