Soil Properties And Pavement Performance In The Nigerian Rainforest: A Case Study Of Shagamu-Benin Road, South-Western Nigeria

Osadebe, CC; Omange, GN

doi:10.4314/ijs.v7i1.32164

Cited by 4 publications

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“…However, loss of lives and properties has been linked to the poor design and substandard construction activities arising from non-compliance with the recommended standards. However, road failures are usually followed by the following signs such as rutting, potholes, differential heave, deformation, peeling and cracking [9][10][11]. Several factors have been linked to the increasing recorded road failures include geomorphological, geological and geotechnical factors, design and construction inadequacies, maintenances and road usage [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Evauation of road failure along an erosion prone highway in ogun state southwestern nigeria using integrated methods

2020

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This study investigated a road failure on an erosion prone highway of Sagamu-Papalanto southwestern Nigeria. The mineralogical and chemical composition of the soils were analyzed using X-ray diffraction and X-ray fluorescence methods. The geotechnical properties of the soil such as grain size distribution, consistency limits test, specific gravity, compaction, California bearing ratio (CBR), porosity, permeability, shear strength test and cone penetrometer test were also conducted on the soil samples. The results of the investigation showed that the moisture content, specific gravity, liquid limit, plastic limits and plasticity index ranged from 9.4-18.2%; 2.54-2.58; 26.8-42.6%; 18.2-25.2% to 7.1-21.6%, respectively. Grain size distribution showed the fine and coarser fractions range from 12-32.5% to 49.4-80.5%, respectively. The maximum dry density and its optimum moisture content ranged from 1.64-1.74 g/cm 3 to 12-17%, respectively. CBR results ranged from 3 to 12%. The class of subsoils namely A-26, A-7, A-2-7 (clayey soils), were identified and rendered unsuitable as road construction materials. The results from this investigation revealed that the subsoils are poor road construction materials due to its fines and plasticties. This should be put into consideration during the reconstruction and rehabilitation of the road.

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Section: Introductionmentioning

confidence: 99%

Evauation of road failure along an erosion prone highway in ogun state southwestern nigeria using integrated methods

2020

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“…However, road failures are usually preceded by the following destructive signs such as cracking, rutting, potholes, differential heave, deformation and peeling [6][7][8][9][10]. Many causative factors attributed to the increasingly recorded road failures include geological, geomorphological and geotechnical factors, road usage, design and construction inadequacies, and maintenances [11][12][13][14][15][16][17][18]. Climatic factors particularly temperature fluctuations and acid rain attacks have been adjudged to reduce the strength of the road base materials.…”

Section: Introductionmentioning

confidence: 99%

Engineering properties of residual soils in part of Southwestern Nigeria: implication for road foundation

2019

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The impact of roads on the socioeconomic development and progress of any country cannot be quantified. A geotechnical investigation of subsoils along Isinbode-Ara road, stretching in southeastern to northwestern direction of 7 km distance within Ekiti State, Southwestern Nigeria, was carried out. This investigation follows the British Standard Institution, such as moisture content, particle size distribution, specific gravity, Atterberg limit, compaction, consolidation and California bearing ratio. Results of investigation showed that the moisture content, specific gravity, liquid limit, plastic limits and plasticity index ranged from 7.2-25.9%; 2.64-2.77; 24.0-61.1%; 19.2-26.2% to 4.35-38.90%, respectively. Grain size distribution showed the fine and coarser fractions range from 13.0-66.5% to 32.6-84.8%, respectively. The maximum dry density and its optimum moisture content ranged from 1.48-2.07 g/cm 3 to 11.3-30.3%, respectively. Soaked CBR results ranged from 3 to 44%. Two classes of subsoils, namely A-2-4 and A-2-6 (granular materials) and A-6 and A-7-6 (clayey soils), were identified and rendered suitable and unsuitable road construction materials, respectively. This investigation revealed that the subsoils are poor road construction materials due to its fine fractions and plasticities, which should be put into consideration during its foundation design and construction stages.

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The Kano–Kazaure highway, north central Nigeria: the significance of the engineering geology in construction

Osadebe¹,

Salami

Obrike³

et al. 2010

Bull Eng Geol Environ

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Soil Properties And Pavement Performance In The Nigerian Rainforest: A Case Study Of Shagamu-Benin Road, South-Western Nigeria

Cited by 4 publications

References 0 publications

Evauation of road failure along an erosion prone highway in ogun state southwestern nigeria using integrated methods

Evauation of road failure along an erosion prone highway in ogun state southwestern nigeria using integrated methods

Engineering properties of residual soils in part of Southwestern Nigeria: implication for road foundation

The Kano–Kazaure highway, north central Nigeria: the significance of the engineering geology in construction

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