Performance evaluation of asphalt concrete using waste blister pack as additive

Abstract

Disposal of non-decaying wastes, including blister packs, has become a significant concern in developed and developing countries. Blister pack waste materials were used as an additive to in this to enhance the performance of asphalt concrete mixes. Four different asphalt concrete combinations were produced using shredded waste blister packs (WBP) at distinct proportions to achieve research goals, including 0.25%, 0.50%, and 0.75% by weight of total aggregate. Afterward, Marshall properties (i.e., density, stability, flow value, air void, voids in mineral aggregate, voids filled with asphalt, and retained stability) were evaluated to check the performance of asphalt concrete and later on to determine the optimum asphalt content. It was investigated that the specimens made with 0.25% and 0.50% (by weight of total aggregate) WBP satisfied all Marshall criteria including significant stability and retained stability value. The percentage of optimum asphalt content was lowest for the mixes with 0.75% WBP content, followed by 0.50%, 0.25% and 0%. Meanwhile, highest stability was found for the mixes with 0.50% WBP content. All the properties at 0.25% and 0.50% WBP content showed better results than the control mix (i.e., 0% WBP).