Characterization of 0/20 Silexite Material for Use in Bedding or Bonding Layer
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


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Research Paper | Civil Engineering | Senegal | Volume 8 Issue 2, February 2019 | Popularity: 6.7 / 10


     

Characterization of 0/20 Silexite Material for Use in Bedding or Bonding Layer

Souleymane Mbengue, Djibril Sow, Makhali Ba, Ibrahima Khalil Cisse


Abstract: There is a growing demand in Senegal for road building materials. Moreover, in the face of a scarcity of materials satisfying the technical specifications and overexploitation of the basaltic material normally used, this article was intended to initiate studies on the possibility of using the existing silexite material as an alternative in order to anticipate the problem of exhaustion of basaltic deposits. Indeed, this article has referred to the possibility of using as a bedding or bonding layer of the limexite material from industrial waste from phosphate recovery at Mboro in association with the bituminous binder to form severe bitumen.20 to determine its physical and mechanical performance and then note their limits in relation to the minimum requirements of the road technical specifications. For this purpose, the physical and mechanical identification of the silexite material is carried out initially. It turns out that the silexite material has good mechanical properties with Los Angeles and Micro Deval values in accordance with the requested requirements. Regarding the granularity, nonconformities are noted on the sieve D and d refusals and can be corrected during the crushing because of the manufacturing parameters. Then, the performances of the bituminous mixture, in particular the severe bitumen GB 0/20, are studied. At the end of this study, the results obtained are satisfactory in terms of stability, creep and Marshall compactness while the Duriez test denotes some nonconformities on the immersion compression ratio below the threshold value of 0.70 for certain values of binder content. . Nevertheless, the silexite material can be used as a bedding or bonding layer in the form of severe 0/20 bitumen, given the conclusive results obtained.


Keywords: Silexite - Basalt - Serious bitumen - Los Angeles - Micro Deval - Marshall - Duriez


Edition: Volume 8 Issue 2, February 2019


Pages: 1234 - 1239



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Souleymane Mbengue, Djibril Sow, Makhali Ba, Ibrahima Khalil Cisse, "Characterization of 0/20 Silexite Material for Use in Bedding or Bonding Layer", International Journal of Science and Research (IJSR), Volume 8 Issue 2, February 2019, pp. 1234-1239, https://www.ijsr.net/getabstract.php?paperid=ART20195262, DOI: https://www.doi.org/10.21275/ART20195262

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