Research on the Application of UHPC in the Construction of Expressway Bridge Deck Joint
In order to solve the problem of insufficient tensile stress and durability of construction materials for new and old bridge deck joints of expressways,the influence law of different water to binder ratios on the working performance and mechanical properties of UHPC is studied by using UHPC as raw materials and indoor test method.The results show that under the condition of design mixture proportion,when the water to binder ratio of UHPC is 0.16,the slump flow reaches 690 mm,and the 28 d compressive strength reaches 141 MPa,which can meet most of the construction requirements.The application of UHPC in bridge joint construction has a good application effect,which verifies the feasibility of the scheme and can provide reference for similar engineering in the future.
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