The residual stability value is the stability value of the soaked asphalt mixture, this study aims to obtain the residual strength stability value in the Asphalt Concrete – Wearing Course (AC-WC) mixture which is added LDPE plastic waste as a substitute for aggregate. The results of the study obtained stability values from all immersion variations tested to meet the bina marga specification standards, which are greater than 800 kg, for 0-hour immersion of 1445 kg, 15-minute immersion variation of 1409 kg, 30-minute immersion variation of 1381 kg, 60-minute immersion variation of 1340 kg, and in 360-minute immersion variation the stability value was obtained of 1304 kg. AC-WC asphalt mixture using added LDPE plastic waste has a residual stability value after soaking for 360 minutes (6 hours) of 90.3%, meeting the residual stability value required by SNI 8139: 2015 and bina marga specifications which state that the residual stability value after soaking for at least 360 minutes (6 hours) the decrease must not be measured from 90%.
