Characterization of granular lateritic soils as pavement material

Biswal, Dipti Ranjan; Sahoo, Umesh Chandra; Dash, Suresh R.

doi:10.1016/j.trgeo.2015.10.005

Cited by 27 publications

(11 citation statements)

References 18 publications

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“…The characteristics of the lateritic soils vary considerably based on their mineralogical composition, microstructure of soil particles, climate condition, parent rock and the degree of laterization [5]. Thus, it is confirmed by our different results that the laterites behavior varies according to their particle sizes.…”

Section: Granularity Influence On the Bearing Strengthsupporting

confidence: 81%

“…Though, the identification parameters and the CBR index did not vary enough at the time, the compaction characteristics of the lateritic gravels of Sindia are slightly inflected compared to the former researches, in particular, those of [6], this can be either related to the heterogenous quality in the pit as aforementioned and likewise in India [5], or to the excavation targeted on the good quality of materials at the first time.…”

Section: Grading Characteristicsmentioning

confidence: 84%

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Grain Size Influence on the Compaction Aptitude and the Bearing Strength of the Gravel Lateritic Soils

Diop¹,

Gbaguidi²,

Lo³

et al. 2018

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This study is carried out to appreciate the coarse elements influence of the gravel lateritic soils on the pavement behavior. The material involves not only the 0/20 mm granular particles considered in the specifications and on the laboratory tests, but also all of the material that is actually used in the construction sites. Geotechnical characterization was leaned on five differentiated granular classes of 0/20; 0/25; 0/31.5; 0/40 and 0/63 mm diameters. The sample of 0/40 mm gets the best compaction aptitude, while that of 0/31.5 mm reaches the greatest bearing strength and a good Optimum Moisture Content. According to the requirements and its bearing strengths, the material is usable up to subbase layer and its behavior depends on the grain size.

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Section: Granularity Influence On the Bearing Strengthsupporting

confidence: 81%

Section: Grading Characteristicsmentioning

confidence: 84%

Grain Size Influence on the Compaction Aptitude and the Bearing Strength of the Gravel Lateritic Soils

Diop¹,

Gbaguidi²,

Lo³

et al. 2018

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“…Given the passing percentage of particles from sieve #200, the lateritic soil is classified into two classes, including fine-grained and coarse-grained soil. Previous studies have focused on coarsegrained [25,35] and fine-grained lateritic soil [14,30,[32][33][34]. The percentage of particles smaller than the #200 sieve (69.6%) in the current research is more than that used by [30], which was 56.71%.…”

Section: Grain Size Distribution (Gsd)mentioning

confidence: 79%

Characterization of lateritic soil based on literature and lab testing

Roshan

Hezmi

Rashid

et al. 2022

Preprint

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Lateritic soil resulting from weathering, particularly the chemical weathering process of rocks, is found widely in tropical and subtropical countries such as Malaysia, Thailand, Singapore, and Brazil. The characteristics of this residual soil depend on many factors, including weathering degree, chemical compositions, and laterization degree, indicating their varying properties from one place to another. Thus, it is essential to explore their characteristics before using them as a construction material for a particular structure. In this paper, a lateritic soil sampled from Universiti Teknologi Malaysia has been explored in terms of grain size distribution (GSD), Atterberg limits, specific gravity, compaction, unconfined compressive strength (UCS), unconsolidated undrained (UU) test, FESEM, and EDX. The obtained results indicated that the soil is classified as plastic silt (MH) and A-7-5 according to USCS and AASHTO methods, respectively. The optimum moisture content (OMC) and maximum dry density (MDD) were obtained 28 % and 1.39 g/cm3, respectively, based on the standard compaction method. The unconfined compressive strength (UCS) is 200.75 kPa, whereas, in the unconsolidated undrained (UU) test, the deviator stress is equal to 449.4 kPa, 529.3 kPa, and 674 kPa for 50, 100, and 200 kPa, respectively. The total friction angle and undrained cohesion are 25.69° and 115.82 kPa, respectively. According to the FESEM results, the matrix microstructure was detected for the soil. The O, Al, Si, and Fe were detected as primary chemical elements in the soil. The results of this study can help the practitioners to classify the laterite soil and decide based on its characteristics.

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“…e reliability analysis of an engineering project is very important, in order to meet the requirements of settlement during construction and operation [6]. Since the first practical application of modern dynamic compaction techniques for ground treatment in 1965, many researchers have investigated the densification effects of dynamic compaction [7][8][9][10][11]. Modoni et al [11] investigated the effects of compaction on the seismic performance of gravelly embankments.…”

Section: Introductionmentioning

confidence: 99%

Field Test and Numerical Simulation of Dynamic Compaction of High Embankment Filled with Soil‐Rock

Zhang

Yang

Zhang

et al. 2019

Advances in Civil Engineering

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In view of the high filling height and large amount of soil and rock in the high-filled embankment, the variation law of the displacement field, stress field, and plastic zone of embankment body reinforced by dynamic compaction with different energy levels and the optimal compaction energy were analyzed by means of numerical simulations and field tests. Taking the embankment section of the Ping-Zan highway as an example, the construction scheme of dynamic compaction was designed, and the optimum tamping times and effective dynamic compaction depth of the embankment filled with soil-rock were obtained through the field test. The study showed that the displacement field and the stress field are redistributed after applying single-point compaction, and the volume of the shear plastic zone increases. The optimal number of slams for high-filled granular soil is 7 times, and the effective depth of dynamic compaction is 4.5 m. The result corresponds with that by the field test, which indicates that dynamic compaction is reasonable and has a significant effect on the high embankment filled with granular soil.

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Characterization of granular lateritic soils as pavement material

Cited by 27 publications

References 18 publications

Grain Size Influence on the Compaction Aptitude and the Bearing Strength of the Gravel Lateritic Soils

Grain Size Influence on the Compaction Aptitude and the Bearing Strength of the Gravel Lateritic Soils

Characterization of lateritic soil based on literature and lab testing

Field Test and Numerical Simulation of Dynamic Compaction of High Embankment Filled with Soil‐Rock

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