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

Ogundalu, A. O.

doi:10.9734/bjast/2014/8186

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…Soils play an integral role in almost every aspect of civil engineering practice, ranging from road construction to buildings, dams, bridges, etc. Lateritic soils particularly are commonly utilized for various earthwork projects and the construction of road pavement in most tropical nations, including Nigeria, due to their accessibility and inexpensive cost [1]. However, it has been noted that the poor geotechnical characteristics of lateritic soils, which usually act as the major components of sub-grade and base materials, are principal reasons for roadway failure [2].…”

Section: Introductionmentioning

confidence: 99%

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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%

“…However, there is considerable shrinkage when they lose water [8]. In their natural conditions, a number of lateritic clay soils have poor engineering qualities, occasionally exhibiting severe swelling, low strength, excessive plasticity, and a large drop in strength when exposed to water [1].…”

Section: Introductionmentioning

confidence: 99%

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

2023

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“…Cement, clay and laterite [10][11][12] has been used in the production of blocks for building materials till this present time. Cement used for building blocks has some advantages such as high bulk density, low water absorption, good binding properties, good compressive and fracture strength, but also has disadvantages such as high cost of production, CO 2 emission, high energy consumption and heavy weight [11][12][13][14][15]. Sustainability in building materials is very important and can also be achieved through the use of local materials [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Fracture Toughness and Strength of Bamboo-Fiber Reinforced Laterite as Building Block Material

Kolawole¹,

Olugbemi²,

Kolawole³

et al. 2017

ujms

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Modern day building materials must be sustainable, cheap, environmental friendly, durable and available. Laterite reinforced with bamboo fiber was moulded into blocks to determine the compressive strength, flexural strength and fracture toughness using universal tensile machine (UTM), while the elemental composition was determined by EDS, SEM/Gwyddion software were used to study the fractured surface of the bamboo-fiber reinforced laterite (BFRL) block. Water absorption test and bulk density were also carried out. The blocks were moulded by varying the percent weight (%wt) fraction of bamboo fiber from 0 to 25%. The dimensions for the compressive and flexural samples were 100 x 100 x 100 mm and 600 x 100 x 100 mm respectively. The results of the experiment showed that at 25 %wt of bamboo fiber a maximum compressive strength, flexural strength and fracture toughness of 5.0±0.25 MPa, 2.25±0.113 MPa and 1.70±0.085 MPa √ respectively were obtained. EDS result reviewed the following elements Al, Si, Ca, Fe and C. SEM images analyzed using Gwyddion software reviewed different fracture patterns.

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Modification of Lateritic Soil with Selected Agricultural Waste Materials for Sustainable Road Pavement Construction

Adeboje

Bankole

Apata

et al. 2021

Int. J. Pavement Res. Technol.

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

Cited by 4 publications

References 17 publications

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

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

Fracture Toughness and Strength of Bamboo-Fiber Reinforced Laterite as Building Block Material

Modification of Lateritic Soil with Selected Agricultural Waste Materials for Sustainable Road Pavement Construction

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