The appearance of premature cracks in freeway chase bodies is a worrying problem that requires in-depth analysis and remedial action. By identifying potential causes and proposing targeted recommendations, this study aims to help the responsible authorities make informed decisions to prevent such problems in the future and ensure the durability of road infrastructure. Premature cracking and rutting are common problems in pavements that can compromise their durability and safety. The use of specific additives in asphalt concrete can help prevent these deficiencies. The use of ZQ1 additive alone can lead to premature cracking in pavements, while PR FLEX 20 additive can increase the risk of rutting. However, a judicious combination of the two additives, with specific percentages of 2% for ZQ1 and 5% for PR FLEX 20, can prevent these shortcomings, improve pavement durability and optimize the mechanical properties of highmodulus asphalt concrete (BBME). In addition, this approach offers a promising solution for improving pavement durability and performance over time, opening the door to further studies to optimize the use of this additive combination in field applications.