期刊名称：Current Journal of Applied Science and Technology
印刷版ISSN：2457-1024
出版年度：2022
卷号：41
期号：20
页码：21-33
DOI：10.9734/cjast/2022/v41i2031746
语种：English
出版社：Sciencedomain International
摘要：Aims: To determine the technical parameters sought in road engineering of the lateritic aggregate of Atchia village in the Arrondissement of Cana, Commune of Zogbodomey. Study Design: To valorize the lateritic aggregate of Cana-Atchia in the construction of roads in Benin. Place and Duration of Study: Colas Benin Entreprise Laboratory and Laboratory of Energetic and Applied Mechanic, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Abomey-Calavi, between January 2021 and March 2022. Methodology: Thus, with the help of classical road material characterization tests, the values of technical road engineering parameters are determined on prepared specimens. Results: The different results obtained are the percentage of passings at the 80 µm sieve (13%), the liquidity limit (32.67%), the plasticity index (13.67%), the dry density obtained at the Proctor optimum (2.28t/m3), the CBR index (106%) and the swelling index (0.04%). In the Proctor test, the water content at the OPM is evaluated at 8.20%. Similarly, studies have shown that the lateritic gravel of Cana-Atchia has a natural water content of 3.5% and an organic matter content of 0.75%. Conclusion: From this study, it appears that the lateritic aggregate of Cana-Atchia has very good technical parameters sought in road engineering, with regard to the technical specifications of the CEBTP guides of 1984 and 2019.
关键词：Lateritic aggregate;technical parameters;road engineering;pavement base layers
