Reconstruction of the expansion joint system of existing concrete bridge decks.
“Correct implementation of expansion joint systems is one of the most important details in the construction of bridge decks, requiring great care in design, performance, and during various stages of implementation. Failure to pay attention to the construction, installation, and timely maintenance of expansion joint systems can cause significant and sometimes irreparable damage to the bridge structure. Moreover, inaccuracy in the execution of expansion joint systems can disrupt smooth traffic flow. Therefore, it is crucial to pay attention to the special characteristics of the system when rehabilitating expansion joints. This paper presents a method for rehabilitating expansion joint systems up to 10 centimeters (small S-EXJ expansion joints) for the roadway in reinforced concrete deck bridges, based on domestically produced rubber expansion joints. In this method, unlike current conventional methods, the asphalt pavement of the bridge deck is installed before the expansion joint system is set in place. Therefore, the proposed method, with particular consideration for the need for smooth movement and maintenance-related aspects of bridges, including water-tightness, is recommended. Efforts have been made to explain the details of the implementation process, ensuring that the proposed system, after full installation of the pavement, allows for maximum compatibility with longitudinal and transverse profiles.”