Document Type
Article
Source Publication Title
Engineering
DOI
https://doi.org/10.1016/j.rineng.2024.102350
Abstract
This study investigates the potential of replacing natural aggregates in concrete with aggregates obtained from Phosphate Mine Waste (PMW) rocks in Jordan. Several tests were conducted to determine the PMW rocks’ chemical, physical, and mechanical properties according to ASTM standards. A comprehensive experimental investigation was conducted, involving thirty-six concrete cylinder specimens, to evaluate the strength and durability properties of concrete made with PMW rocks compared to concrete made with natural limestone aggregates. The tested aggregates of PMW rocks consist mainly of quartz, dolomite, montmorillonite, and flu- orapatite. Their physical and mechanical properties were found to be similar to the natural aggregates used for concrete. Concrete specimens made of waste rocks had an average compressive strength of 28.72 MPa at 28 days versus 30.18 MPa for concrete specimens made with natural aggregates. The tensile splitting strengths of the concrete made with PMW aggregates were higher than expected, with an average of 5.36 MPa at 28 days, whereas the reference specimens had an average tensile splitting strength of 5.49 MPa at 28 days. According to the findings, PMW rocks can successfully replace natural aggregates in structural and infrastructural construc- tions, enhancing the circular economy concept and contributing to a more environmentally friendly mining industry.
Disciplines
Engineering
Publication Date
6-4-2024
Language
English
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Recommended Citation
Eljufout, Tamer and Alhomaidat, Fadi, "Utilizing waste rocks from phosphate mining in Jordan as concrete aggregates" (2024). Open Initiatives Grant Funded Publications. 16.
https://mavmatrix.uta.edu/utalibraries_openinitiativespubs/16
