Abstract
AbstractThe widely used orthotropic steel deck system is subject to several durability problems: fatigue cracking of the steel, wearing of the surfacing, and corrosion. Thus, the composite deck system composed of an orthotropic steel deck and an ultrathin reactive-powder concrete (RPC) layer was proposed. In a prefabricated composite deck system, joints formed between the prefabricated RPC layer and the cast-in-situ RPC layer are defined as wet joints. The experimental study was conducted on the tensile behavior of RPC wet joints to ensure the integrity of the prefabricated deck system and the serviceability and durability of the RPC layer. Two series of tests were conducted, including seven tensile tests on panels and four negative bending tests on beams. In these tests, five types of new wet joint details were designed in addition to the integral casting detail and the conventional wet joint with a vertical, plane interface. To study the mechanical properties and crack resistance performance of differen...
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