Blending of marginally suitable tropical sub-base materials for use in base course construction

Frempong, E. M.; Tsidzi, K.E.N

doi:10.1016/s0950-0618(99)00015-x

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…Overall, fines are considered to enhance the plasticity, notably in [25]. Nevertheless, the results indicate the opposite to this ( Figure 5) and confirm that the contribution of the fines in the plasticity of the lateritic soils is not inherent [11].…”

Section: Grading Characteristicsmentioning

confidence: 67%

“…Only the curve of the 0/40 mm granular class satisfies the well graded conditions of the Cu and the Cc requirements, the 0/31.5 mm class is closer to the previous class than the rest, and then become the second granular class of all the five in terms of grading features. The well graded class has intergranular voids filled by other smaller particles and thus, this can improve the bearing strength as noted in [11].…”

Section: Grading Characteristicsmentioning

confidence: 94%

“…As it is shown that between the five classes, the well graded by its coefficient of uniformity contain more fines, and can get the best CBR index, it is that of 0/31.5 mm diameters. Here, we can approve that the compacting produces additional fines to fill the gravel/gravel and gravel/sand voids, thus enhancing the resistance to swell [11] and the bearing strength, thus the sustainability of the pavement.…”

Section: Granularity Influence On the Bearing Strengthmentioning

confidence: 95%

“…The specifications are based on the type of the pavement to construct, on the bearing strength of the subgrade and on the traffic. The handbook of the CEBTP has not been reviewed since more than 30 years, nevertheless it is still relevant, for lack of information on the traffic supported by the roads, so as to appreciate the evolution of the pavement behavior [6], despite the evolution of the traffic some final improvements are primarily operated with shallow adjustments on the treatment and are realized in the relevant handbook of the AGEROUTE (Agence des travaux et de Gestion des Routes) [10], likewise, in Ghana and in the most tropical countries [11].…”

Section: Introductionmentioning

confidence: 99%

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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: Grading Characteristicsmentioning

confidence: 67%

Section: Grading Characteristicsmentioning

confidence: 94%

Section: Granularity Influence On the Bearing Strengthmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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“…Basalts offer better characteristics that of its bulk density, its Los Angeles abrasion value and its aggregate crushing value whatever the particles size classes in which it is studied. For these reasons, [24][25][26][27] use basalts aggregates to improve the geotechnical characteristics of fine lateritic soils. In the same vein, Hyoumbi et al [28] shows that in general, the additions of 20% to 50% of 0/5 mm basalt aggregates to fine lateritic soils moderately modify their physical properties such as: particle size, Atterberg limits and values in methylene blue.…”

Section: Discussionmentioning

confidence: 99%

Petrographical and geomechanical assessment of Widikum and its surroundings’ geological formations (North-West Cameroon) as construction materials

et al. 2020

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Widikum and its surroundings (North-West Cameroon) are covered with basalts, granites and gneisses. Construction companies use these rocks extensively and indiscriminately for structural loading, pavements, wall cladding as cobblestone and masonry stones. The suitability of these rocks and their petrographic (outcrops mode, structure, color, mineralogical composition and crystals size), physical and geomechanical (specific density, bulk density, Los Angeles abrasion test, and Aggregates crushing test) properties evaluation becomes important for their aforementioned applications. The aim of this study is to characterize on the petrographic and geomechanical level, basalts, granites and gneisses of the locality of Widikum and its surroundings for their use as construction materials. Concerning the petrographical point, granites and gneisses are rich in quartz, feldspar, plagioclase, biotite, amphibole and accessory minerals like opaque minerals and zircon. On the other hand, basalts are ferro-magnesians rich in olivine, pyroxene and opaque minerals. Plagioclase is also a main constituent mineral of this geological formation. On the physical and geomechanical properties, despite their extension on the field, granites have satisfactory density; but, they are least resistant according to the Los Angeles abrasion values. However, basalts are one of the geological formations which are the least extended on the field. They are most dense with the satisfactory to excellent Los Angeles abrasion values. Concerning the gneissic formation, its density and Los Angeles abrasion values are satisfactory. Generally, the aggregates crushing values of studied geological formations attest that they are satisfactory to excellent apart from those of coarse grainy granites. In view of the foregoing, basalts have the best geomechanical qualities and could be used as constituent of construction materials.

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Effects of pozzolana addition and geogrid reinforcement of lateritic clays in the sub-Saharan zone (West Cameroon): Implications for road construction

Bille

Onana

et al. 2022

Bull Eng Geol Environ

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Blending of marginally suitable tropical sub-base materials for use in base course construction

Cited by 9 publications

References 6 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

Petrographical and geomechanical assessment of Widikum and its surroundings’ geological formations (North-West Cameroon) as construction materials

Effects of pozzolana addition and geogrid reinforcement of lateritic clays in the sub-Saharan zone (West Cameroon): Implications for road construction

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