Chengyu Expressway, Outer Ring of Chongqing, China

The Chengyu Expressway, part of the Outer Ring of Chongqing, serves as a critical transportation route in one of China's most dynamic urban centers. This expressway not only enhances connectivity between major districts but also passes through densely populated neighborhoods, necessitating construction solutions that prioritize community well-being.

In 2018, IEC supplied Elastic Polyurethane Expansion Joints (PUF-40 and PUF-60) for this project, designed to reduce noise and improve driving comfort. These advanced expansion joints feature elastic polyurethane technology, which minimizes vibration and acoustic impact, ensuring a quieter environment for nearby communities. IEC’s innovative solution not only met the project's strict requirements for noise reduction but also contributed to the overall durability and safety of the expressway, aligning with modern urban development standards.