Browsing by Author "Andrew Kutesa"

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    Assessing the Use of Ethylene Vinyl Acetate (Eva) for Resilience of Pothole Patches in Asphalt Pavements
    (Uganda Christian University, 2025-04-10) Andrew Kutesa
    Pothole reoccurrence is generally initiated by water penetration inducing bitumen oxidation and leading to the deterioration of conventional asphalt repair under traffic loading. This research investigated the utilization of Ethylene Vinyl Acetate (EVA) for enhancing the durability of asphalt pavements used in pothole patching. The suitability of the aggregates utilized and the enhanced properties of bitumen with low penetration and high softening point were validated through material characterization tests. The vinyl and acetate compound peaks' high values reflected the high curing and general reactivity of EVA. Between 2% and 8% by weight of bitumen EVA contents were experimented upon and 4% findings presented a reduction in penetration values and an increase in softening point values at elevated levels making it suitable for adhesion with material components. EVA-modified bitumen mix, containing 4% EVA by weight of 60/70 grade bitumen, was manufactured and its performance compared with that of a standard bitumen mix. The EVA-modified asphalt mix exhibited better properties, including higher stability, flow, and indirect tensile strength, and better resistance to moisture damage. The test results show that EVA modification is a good way of creating more durable and longer-lasting pothole patching materials.