Authors
Mustapha Amrani, Yassine Taha, Azzouz Kchikach, Mostafa Benzaazoua, Rachid Hakkou
Publication date
2020/7/1
Journal
Journal of Building Engineering
Volume
30
Pages
101267
Publisher
Elsevier
Description
It is aimed in this paper to suggest novel alternatives to recycle phosphogypsum (PG) in road applications. The performance of several formulations for the stabilization of raw PG with other selected materials was evaluated. The research began with a feasibility study of using raw phosphogypsum alone as embankment material, then focusing on the effect of stabilizers such as clayey soil (SM), fly ash (FA), lime (L), calcareous material (CM) and a special hydraulic road binder (HRB). The objective was to increase the strength up to a threshold favouring the use of the stabilized mix as a base material in road pavement, while ensuring a neutralization of acidity generated by PG. Environmental, mineralogical and geotechnical properties of raw materials were investigated. According to compressibility parameters, initial moisture content and compaction characteristics, this study confirms first that the use of PG alone …
Total citations
202020212022202320241122353027
Scholar articles
M Amrani, Y Taha, A Kchikach, M Benzaazoua… - Journal of Building Engineering, 2020