Are you a bridge owner or engineer looking to ensure the strength and longevity of your connections between precast elements? If so, then Ductal® joint fill provides the answer to developing long-lasting, durable bridges and connections. In fact, the US Federal Highway Administration (FHWA) recognizes UHPC as the preferred solution for sustainable and durable connections of precast bridge elements to address three key challenges: safety, traffic flow management and infrastructure longevity.
What is joint fill?
Joint fill is an application in which Ductal® UHPC is used to connect prefabricated bridge elements, such as precast deck panels or substructure elements, for improved performance and longevity when compared to conventional materials.
Not only does Ductal® bond exceptionally well to existing concrete surfaces with proper surface preparation, it can develop the full yield strength of reinforcing bars with minimal embedment lengths. For instance, a typical #5 (16 mm or 0.625 in diameter) epoxy-coated steel rebar only requires 127 mm (5 in) of embedment into UHPC to fully develop. This allows you to substantially reduce the size of connection joints between prefabricated elements without any loss in strength or resistance.
Ductal® provides a reliable and highly durable, cost-effective solution in any environmental reality, from sub-zero temperatures to high-seismic zones. Its advanced bonding ability minimizes permeability and removes any concern of deck leakage at precast joint interfaces, while also offering enhanced durability properties and minimizing the risk of longitudinal cracking.
When combined with our experts’ engineering, construction and technical assistance (available from day one of your project), Ductal® UHPC is the right solution for your bridge construction or rehabilitation needs.