Investigations of the Crushed Basanite Aggregates Effects on Lateritic Fine Soils of Bafang Area (West-Cameroon)

Hyoumbi, William Tchungouelieu; Pizette, Patrick; Wouatong, Armand Sylvain Ludovic; Abriak, N.‐E.; Borrel, Louis Robert; Razafimahatratra, Francine Norotiana; Guiouillier, Thomas

doi:10.1007/s10706-018-0751-0

Cited by 7 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This results in a reduction in the water absorption capacity of the soil. The similar evolutions have been reported by various authors [12,15,19,33]. Ndiaye et al [12] found that the addition of 10% dune sand to lateritic soils from Senegal results in a 20% decrease in the plasticity Index (PI).…”

Section: Figure 4 Grain Size Distribution Of the Crushed Granite Comp...supporting

confidence: 85%

“…It shows that the MDD increases from 2.02 to 2.18 t/m 3 for C1, from 2.03 to 2.12 t/m 3 for C2 and from 2.06 to 2.12 t/m 3 for CM and the OWC decreases from 11.2 to 6.87% for C1, from 10.9 to 7.18% for C2 and from 10.4 to 8.35% for CM. This trend is attributed to the specific density of granite (2.9 t/m 3 ), higher than that of the soil (2.75 t/m 3 ), which increases the MDD of the mix materials and decrease the clay content in the mixture, which resulted in the decrease of OWC required by the mixtures to reach the MDD [15,16]. In fact, the specific density of the mixtures increases from 2.73 to 2.89 t/m 3 for C1; 2.67 to 2.84 t/m 3 for C2 and 2.75 to 2.84 t/m 3 for CM.…”

Section: Figure 4 Grain Size Distribution Of the Crushed Granite Comp...mentioning

confidence: 99%

“…Ndiaye et al [12] found that the addition of 10% dune sand to lateritic soils from Senegal results in a 20% decrease in the plasticity Index (PI). Hyoumbi [15] showed that the PI decreased about 35% after the addition of 50% of crushed basanite of class 0/5. Issiakou [33] obtained an increase of 24% after addition of 10% of lateritic nodules of class 0/5 mm.…”

Section: Figure 4 Grain Size Distribution Of the Crushed Granite Comp...mentioning

confidence: 99%

“…This technique is called lithostabilization. There are some works in the literature that have been done using this technique [10][11][12][13][14][15][16][17][18][19]. The stabilization of lateritic soil by the addition of crushed aggregates was applied in Burkina Faso by Lompo [10] on the road section of Ouagadougou-Yako and by Toé [11] on the road section of Ouagadougou-koupèla.…”

Section: Introductionmentioning

confidence: 99%

“…Hyoumbi et al [15] conducted a study on improving the physical and mechanical properties of Bafang laterite in Cameroon by adding basanite crushed aggregate 0/5. The authors found that the percentage of fine, the plasticity index, the methylene blue value, as well as the optimum water content decreased with the increasing content of crushed aggregate.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Geotechnical and Mechanical Characterization of Lateritic Soil Improved with Crushed Granite

et al. 2022

View full text Add to dashboard Cite

Since many years, road infrastructures in West Africa are most often subject to premature degradations despite the large number of studies. This problem is often due to the poor control of the behaviour of materials used for the pavement, but also to the scarcity of good quality materials. Nowadays, with economic development, there is a necessity for road infrastructures of good quality. In this framework, the main objective was to study the vertical geotechnical variability of the gravelly lateritic soil from the Saaba site in Burkina Faso and to improve their performances by adding crushed granite. The results show that the physical properties of the soils are almost identical depending on the depth. However, a small difference in the mechanical properties was observed. Due to their poor characteristics, these materials cannot be used for the sub-base layer according to the pavement design guide for tropical countries, CEBTP [1]. In order to improve their geotechnical and mechanical characteristics, crushed granite of class 0/31.5 mm was added at different percentages: 20, 25, 30, and 35%. It appears that the plasticity index, the methylene blue value, as well as the optimal water content of the material decreased. The soaked CBR recorded a maximum relative increase of 164% (from 14 to 37%) with the addition of 20 to 30% of crushed granite. With the addition of 20 to 30% of crushed granite, Young's modulus and unconfined compressive strength also showed a clear increase of 309% (from 80 to 327 MPa) and 140% (from 0.72 to 1.73 MPa). By comparing the results with the CEBTP specifications, the addition of 30% of granites at 95% compactness allows the materials to have a CBR that exceeds the value of 30% and can be used in the sub-base layer of road pavement. The addition of 30% granite allows the materials to record an unconfined compressive strength higher than 0.5-1.5 MPa, which corresponds to lateritic soil suitable for sub-base layer according to Messou [2]. After the addition of 30% granite, the materials record a Young's modulus greater than 300 MPa and can be used as a base layer. The assessment of the improvement of mechanical performance simultaneously based on the CBR, the Young's modulus, and the compressive strength showed the contradictory evolution of the results from these different parameters. A discussion was made on the relationship between these parameters. Doi: 10.28991/CEJ-2022-08-05-01 Full Text: PDF

show abstract

Section: Figure 4 Grain Size Distribution Of the Crushed Granite Comp...supporting

confidence: 85%

Section: Figure 4 Grain Size Distribution Of the Crushed Granite Comp...mentioning

confidence: 99%

Section: Figure 4 Grain Size Distribution Of the Crushed Granite Comp...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Geotechnical and Mechanical Characterization of Lateritic Soil Improved with Crushed Granite

et al. 2022

View full text Add to dashboard Cite

show abstract

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

View full text Add to dashboard Cite

Ex-situ and In-situ Manufacturing Procedures for Optimizing the Characteristics of a Soil Concrete Based on Lateritic Gravels and Granitic Aggregates: Application in Road Construction

Mvindi²,

Bille³

et al. 2022

Int. J. Pavement Res. Technol.

View full text Add to dashboard Cite

Investigations of the Crushed Basanite Aggregates Effects on Lateritic Fine Soils of Bafang Area (West-Cameroon)

Cited by 7 publications

References 25 publications

Geotechnical and Mechanical Characterization of Lateritic Soil Improved with Crushed Granite

Geotechnical and Mechanical Characterization of Lateritic Soil Improved with Crushed Granite

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

Ex-situ and In-situ Manufacturing Procedures for Optimizing the Characteristics of a Soil Concrete Based on Lateritic Gravels and Granitic Aggregates: Application in Road Construction

Contact Info

Product

Resources

About