Geoelectrical Exploration For Groundwater In A Crystalline Basement Terrain: The Case Of Obudu, S.E. Nigeria

Ushie, FA; Osadebe, CC

doi:10.4314/gjgs.v3i1.18711

Cited by 2 publications

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“…These soils are typically found beneath ferruginous earth crust or hardpan, and mostly have red, reddish-brown, or dark brown color [6]. A warm climate having variations in wet and dry seasons, found commonly in tropical regions, favors laterization [7]. When wet, there is usually no significant swelling or loss of resistance in lateritic clays.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Geotechnical Properties of Lateritic Clay with Sawdust Ash-Lime Stabilizer

2023

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One important means of refining the geotechnical characteristics of soils is stabilization. This research sought to improve the geotechnical properties of lateritic clayey soil using sawdust ash-lime (SDAL) stabilizer. Soil-SDAL mixtures were made, after collecting lateritic clay samples and preparing mixtures of lime and sawdust ash in a ratio of 1:2. SDAL mixtures were added to the lateritic clay in increasing percentages from 0 to 10%. The materials’ index properties were determined, and compaction of the Soil-SDAL mixtures was done using four compactive efforts namely Reduced British Standard Light (RBSL), Standard Proctor (SP), West African Standard (WAS), and Modified Proctor (MP). Unconfined compressive strength (UCS) tests were performed on the Soil-SDAL mixtures as well. Results of the tests showed that the soil could be classified as an A-7-5(7) soil with a 13.7% plasticity index. The plasticity index increased with the addition of SDAL mixtures up to 6% after which there was a gradual decline. Meanwhile, maximum dry density (MDD) decreased while optimum moisture content (OMC) increased with SDAL addition. Unconfined compressive strength (UCS) of the soil increased from 38.58kN/m2 at 0% SDAL to a maximum of 129.63kN/m2 at 6% SDAL, after which there was a gradual decrease. Similar trends were noticed at all compactive efforts, indicating consistency in the performance of the stabilizer. Optimum results were achieved at 6% SDAL content, with Modified Proctor compactive effort giving the maximum value of 1,860kg/m3 MDD. The results prove that sawdust ash-lime mixture offers tremendous abilities in improving lateritic clay soil properties.

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Section: Introductionmentioning

confidence: 99%

Enhancing Geotechnical Properties of Lateritic Clay with Sawdust Ash-Lime Stabilizer

2023

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“…Laterite is igneous rocks tropically weathered in-situ which has decomposed partially or totally with a concentration of iron and aluminum sesquioxides at the expense of silica [2]. Laterization is favored by a warm climate with alternating wet and dry seasons as is common in the tropics, [3].…”

Section: Introductionmentioning

confidence: 99%

Effects of Soldier-Ant Mound (SAM) on the Strength Characteristics of Lateritic Clay Soils

Ogundalu

2014

BJAST

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This work was carried out in collaboration between all authors. Author AOO designed the study, performed the analysis, wrote the protocol and wrote the first draft of the manuscript and managed literature searches. Author AOA managed parts of the analyses of the study and literature searches. Author FA collected the SAM materials and carried out the experimental investigations. All authors read and approved the final manuscript.

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Geoelectrical Exploration For Groundwater In A Crystalline Basement Terrain: The Case Of Obudu, S.E. Nigeria

Cited by 2 publications

References 0 publications

Enhancing Geotechnical Properties of Lateritic Clay with Sawdust Ash-Lime Stabilizer

Enhancing Geotechnical Properties of Lateritic Clay with Sawdust Ash-Lime Stabilizer

Effects of Soldier-Ant Mound (SAM) on the Strength Characteristics of Lateritic Clay Soils

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