Investigation of Effect of Bakelite on Mechanical Properties of Hot Mix Asphalt Mixes - A Full Factorial Design Experiment

In Pakistan, mostly flexible pavements are constructed which have a higher susceptibility to rutting, moisture damage and stripping. Under current economic conditions, one such solution overcome this is the addition of economical locally available additives in bitumen being produced by our refineries. This study investigates effects bakelite as an additive on various mechanical properties. Bakelite high-density plastic, cost-effective material. The modified Hot Mix Asphalt (HMA) specimens were prepared with (2%,4%,6%,8%,10%,12%) weight optimum binder content found using Marshall design. Performance tests, including Stability flow. Retained stability Resilient Modulus tests performed check performance mixes. test results revealed that mix containing 6% provides best resistance against damage, rutting enhancing HMA mix's than other modifier percentages. quotient values increased almost 22% 44% respectively. showed increase 3.5% tensile strength ratio indicating capability resist moisture-induced retention. resilient modulus was then under different i.e., (0% & 6%), temperature (25˚C &40˚C) load duration (100 ms 300 ms) analyzed full factorial design experiment. analysis most significant factor affecting MR and, ultimately, mix. 20% for compared conventional Therefore, it concluded hot asphalt mixes gives better regarding pavement performance.