Compaction and Compression Behavior of Waste Materials and Fiber-Reinforced Cement-Treated Sand

Abstract

This research evaluated the effects of various percentages of crumb rubber, tire scrap fibers, palm fibers, polymer bags fibers, palm ash, and polypropylene fibers on the compaction and compression behavior of clayey sand stabilized with cement. The results of compaction tests showed the maximum dry density decreased as the proportions of these waste materials and cement increased. The most suitable moisture content of soil decreased by increasing the percentages of crumb rubber, tire scrap fibers, and polymer bag fibers, but increased by increasing the percentages of palm fibers, palm ash, polypropylene fibers, and cement. Compared to other wastes, palm fibers had a more substantial effect on the compaction and strength properties of the stabilized soil due to its uniform distribution in the soil and stronger bonding between the soil particles. Moreover, the specimens stabilized with 1% polypropylene fibers and 6% cement showed the best ductility behavior.