Geotechnical properties of non-crystalline coastal plain sand derived lateritic soils from Ogua, Niger Delta, Nigeria

Adeyemi, G. O.; Afolagboye, Lekan Olatayo; Chukwuemeka, Alexandra Chinwenwa

doi:10.1080/20421338.2015.1078105

Cited by 11 publications

(8 citation statements)

References 4 publications

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“…Due to the abundance of these soils and ready availability, they have been widely used in the construction of foundations, roads, airfields, low-cost housing, and compacted fill in earth embankments. This affects their variable performance as soil materials for road earthwork, and often require stabilisation (Omotosho and Eze-Uzomaka 2008, Ugbe 2011, Adeyemi et al 2015 compared to other matured tropical lateritic soils (Elarabi et al 2013, Elsharief et al 2013, Carvalho et al 2015 which achieve better success under mechanical compaction in engineering construction. Therefore, for engineering purposes it is important that the geological and engineering properties as predicted or derived from testing are reliable (Kamtchueng et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Geotechnical and Chemical Evaluation of Tropical Red Soils in a Deltaic Environment: Implications for Road Construction

Tse

Ogunyemi²

2016

JGG

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Tropical red soils which occur in the dry flatlands and plains of the eastern Niger Delta Nigeria were evaluated using combined conventional engineering geological investigation with major oxide geochemistry to determine their properties and evaluate their engineering performance in road construction. Laboratory test results indicate that the brownish materials are uniformly graded, silty clayey sandy soils. The silica to sesquoxide ratio values of 3 to 4.37 indicate that they are non-lateritic tropically weathered soils. The average values of the specific gravity, liquid limit, plasticity index and shrinkage limits are 2.67, 37%, 10% and 7.6% respectively. They are soils of low to medium plasticity. The unsoaked and soaked CBR values range from 14-38% and 3-9% respectively whereas the average undrained shear strength is 172kN/m 2 . Maximum dry density and optimum moisture content values fall between 1680 to 1880kN/m 2 and 13-16% respectively. Generally the soils classify as A-7-6 to A-2-4 subgroups of the AASHO classification. The overall implication of these composite engineering properties is that the non-lateritic soils rate as poor to fair subgrade materials.

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Section: Introductionmentioning

confidence: 99%

Geotechnical and Chemical Evaluation of Tropical Red Soils in a Deltaic Environment: Implications for Road Construction

Tse

Ogunyemi²

2016

JGG

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“… G: Gravel, S: Sand, M: Silt, C: Clay, Casa: Casagrande, Pol: Polidori, 1–7: Ogunsanwo (1986) , 8–12: Ogunsanwo (1988) , 13–24: Adeyemi (1995) , 25–27: Ogunsanwo (1996) , 28–29: Adeyemi and Oyeyemi (2000) , 30–32: Osinubi and Nwaiwu (2006) , 33–40: Adeyemi and Wahab (2008) , 41–60: Badmus (2010) , 61–63: Oyediran and Okosun (2013) , 64–75: Adeyemi et al. (2015) .…”

Section: Comparison Between Polidori and Casagrande Charts Of The Lateritic Soilsmentioning

confidence: 99%

The use of Polidori's plasticity and activity charts in classifying some residual lateritic soils from Nigeria

Afolagboye

Talabi

Owoyemi

2021

Heliyon

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Over the years, Casagrande plasticity chart is mainly used to classify fine grain soils. However, the use of the plasticity chart has been questioned recently and this has led to the development of a new plasticity chart. Polidori in 2007 and 2009, respectively, developed the new plasticity and activity charts using the Atterberg's limits of pure clays (montmorillonite and kaolinite clay minerals) and their mixture with fine silica sand in different proportions. The applicability of Polidori's charts was evaluated using some residual lateritic soils from Nigeria. On the Casagrande's plasticity chart, the lateritic soils mostly plot above the A-line in the zone designated as clay and classified as either CL or CH. However, on the Polidori's plasticity chart, the lateritic soils classified as CL or CH, whereas on Casagrande's plasticity chart they are classified as ML or MH and vice versa. The classifications obtained from Polidori's plasticity chart are predominantly in agreement with the main soil fractions or component of the soils. This is different from the classification obtained from Casagrande's plasticity chart where lateritic soils with lower clay fractions than their silt/sand fractions are classified as clayey soils. Polidori's activity chart shows that lateritic soils that lie in the same plastic zone may show different behavior due to the different properties of the clay minerals in the soils. In cases where the lateritic soils lie in the zone that is not corresponding to their clay contents on the Polidori's plasticity chart, we presume that other factors apart from those stated by Polidori might also be responsible. Although the use of Polidori's plasticity chart gives a fair classification of the lateritic soils, nevertheless the peculiarity of residual soils such as the in situ structure that influenced the properties of the soils and properties developed due to weathering effects must be taken into consideration as well.

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“…In tropical and subtropical parts of the world (e.g. Nigeria, China, and Brazil), residual lateritic soils are common and widely distributed soil [1,2]. They are common geomaterials used in various engineering structures such as pavements, compacted clay liners, earth dams, etc.…”

Section: Introductionmentioning

confidence: 99%

“…They are common geomaterials used in various engineering structures such as pavements, compacted clay liners, earth dams, etc. [1][2][3]. The engineering properties of the soils are influenced by the several complex interactions between the compositional and environmental factors [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of cyclic heating on some engineering characteristics of some soils from Ilorin, Nigeria

Owoyemi

Afolagboye

2020

SN Appl. Sci.

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Geotechnical properties of non-crystalline coastal plain sand derived lateritic soils from Ogua, Niger Delta, Nigeria

Cited by 11 publications

References 4 publications

Geotechnical and Chemical Evaluation of Tropical Red Soils in a Deltaic Environment: Implications for Road Construction

Geotechnical and Chemical Evaluation of Tropical Red Soils in a Deltaic Environment: Implications for Road Construction

The use of Polidori's plasticity and activity charts in classifying some residual lateritic soils from Nigeria

Effect of cyclic heating on some engineering characteristics of some soils from Ilorin, Nigeria

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