Innovative techniques like litho-stabilization enhance the quality of lateritic gravel for road construction. Our experiment incorporated varying percentages of crushed gravel with native lateritic gravel. Results revealed that adding 25% and 30% crushed gravel achieved excellent compaction energy, while 20% crushed gravel mixture surpassed natural laterite in density, water content, and plasticity. California Bearing Ratio (CBR) values were notably high, reaching 90%, 95%, and 98% for 20%, 25%, and 30% crushed gravel blends. This research showcases litho-stabilization's potential in fortifying lateritic gravel, yielding resilient and long-lasting road networks.

Audrey Amadine LEGMA. Improvement of Lateritic Gravelly Soil Using Cement and Litho-Stabilization and Its Application Case of Main Road Artery on the City Side of the New Ouagadougou-Donsin airport. Academic Journal of Architecture and Geotechnical Engineering (2023) Vol. 5, Issue 6: 51-60. https://doi.org/10.25236/AJAGE.2023.050610.

[1] D. D. Some, O. G. Yameogo, T. Hino, T. Harianto (2022) , Lithostab as technique for improving the geotechnical performance of a lateritic soil in road construction, Journal of Civil Engineering and Architecture 16 (3) 425–430. doi:10.17265/1934-7359/2022.09.001. 

[2] J. Toe(2007), Use of the technique of lithostabilization in footwearee, in: A site experience. Presentation the conference of young African technicians, Tunis, pp. 16–18. 

[3] A. Omowumi (2017), Engineering evaluation of lateritic soils of failed highway sections in southwestern nigeria, GR 2 (3) 210–218. doi: https://doi.org/10.22606/gr.2017.23006. 

[4] O. VL, Z. AN, E. RM, N. RFD, B. MN, O. BN, E. GE (2017) , Geological identification, geotechnical and mechanical characterization of charnockite-derived lateritic gravels from southern cameroon for road construction purposes., Transportation Geotechnics 10 (3)35–46. doi: https://doi.org/10.22606/gr.2017.23006. 

[5]  S. I. M(2017)., Characterization and valorization of lateritic materials used in road construction in niger, Other: University of Bordeaux . 

[6] N. M.(2017), Contribution to the study of lateritic soils of senegal and brazil, Paris-Est University; Cheikh Anta Diop University (Dakar) . 

[7] Z. P. B. Bohi, Characterization of lateritic soils used in road construction: case of the Agneby region (Cote d’Ivoire), Theses, Ecole des Ponts ParisTech (Nov. 2008). URL https://pastel.archives-ouvertes.fr/pastel-00503010 

[8] G. Liautaud(1984), Practical guide to the dimensioning of footwear for tropical countries . 

[9] A.-P. A (2019). of African Road Managers, P. W. R. A. W. Group, Review of the practical guide to pavement design for tropical countries., Word Road Association (PIARC). 

[10] M. T. M. Mbengue, A. L. Gana, A. Messan, A(2022). Pantet, Geotechnical and mechanical characterization of lateritic soil improved with crushed granite, Civil Engineering Journal 8 (5) 843–862. 

[11] J. N. Emmanuel(2011), use of the litho stabilization technique in roadbed: the reinforcement works of the ouaga-po-frontiere section of ghana. URL http://documentation.2ie-edu.org/cdi2ie/opacc ss/docnum.php?explnumid = 338 

[12] P. LOMPO(1980), The book the materials used in road construction in Upper Volta - an unstable material. 

[13] O. Babaliye, K. Houanou, A. Vianou, A. Tchehouali,(2020). Foudjet, Litho stabilization of the lateritic gravelly by granite crushed for their use in the flexible pavement in benin, International Journal of Advanced Research 8 (04) 1008–1016. 

[14] A. Rimbarngaye, J. N (2021) . Mwero, E. K. Ronoh, Performance evaluation of compressed laterite blocks stabilized with cement and gum arabic, International Journal of Advanced Technology and Engineering Exploration 8 (83)1268–78. 

[15] M. S. Issiakou, N. Saiyouri, Y. Anguy, C. Gaborieau, R(2015). Fabre, Study of lateritic materials used in road construction in niger: improvement method., in: Rencontres Universitaires de Genie Civil, . 

[16] W. T. Hyoumbi, P. Pizette, A. S. L (2019) . Wouatong, N.-E. Abriak, L. R. Borrel, F. N. Razafimahatratra, T. Guiouillier, Investigations of the crushed basanite aggregates effects on lateritic fine soils of bafang area (westcameroon), Geotechnical and Geological Engineering 372147– 2164. 8

[17] E. ISO, et al. (2016), Geotechnical investigation and testing—laboratory testing of soil—part 4: Determination of particle size distribution. 

[18] C. E. C(2018). for Standardization, Geotechnical investigation and testing—laboratory testing of soil—part 12: Determination of liquid and plastic limits . 

[19] N. AFNOR(2014), P94-093: Soils: recognition and tests–determination of the compaction references of a material–normal proctor test–modified proctor test . 

[20] NF-P94-078, Soils: Investigation and tests. cbr after immersion. immediate cbr. immediate bearing ratio. measurement on sample compacted in cbr mould, -Sols: Reconnaissance Et Essais (1997). 

[21] T. EN, et al.(2010), Tests for mechanical and physical properties of aggregates– part 2: methods for the determination of resistance to fragmentation, Ankara, Turkey 1097–2. 

[22] B. Standard(2010), Tests for mechanical and physical properties of aggregates . 

[23] O. Jean-Pierre, T. Jean-Michel, C (2012). Myriam, Physical properties of the concrete and its constituents, Lavoisier.