Damage that occurs on the pavement can be in the form of permanent deformation, cracks due to temperature changes, material damage and material detachment. This research tested the resistance of the Asphalt Concrete Wearing Course (AC-WC) mixture using a plastic bag of LDPE (Low Density Polyethylene) polymer type against water through immersion in water with a temperature of 60 ℃ for 30 min, 24, 48 and 72 h with a continuous system and variations in LDPE polymer plastic content. by 0, 5, 7 and 9%. The results of the analysis show that the use of LDPE polymer plastic in the AC-WC mixture can increase the resistance to damage to the mixture due to continuous water immersion by reducing the retained strength index value and increasing the remaining strength index value with increasing the duration of immersion.