Performance of oil well sand concrete reinforced with polypropylene fibers and incorporating dune and alluvial sands

In the context of recycling and valorizing industrial waste for use in sand concrete, this study contributes to finding a solution for sludge that is generally discharged into nature. Its use as an alternative material in sand concrete is being considered.The study aims to evaluate the effect of partially replacing oil well sand with dune sand and alluvial sand at substitution levels of 25 % and 30%, in combination with the addition of polypropylene fibers, on the mechanical properties of oil well sand concrete. The incorporation of dune sand and alluvial sand alongside oil well sand effectively reduces the proportion of oil well sand, resulting in notable improvements in compressive strength, tensile strength, and a decrease in shrinkage in the mixtures. Furthermore, the inclusion of polypropylene fibers produced a more pronounced enhancement in both strength (compressive and tensile) and shrinkage resistance.