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Title: Non‐Proprietary Ultra‐High Performance Concrete for Precast Bridge Decks Field Joints

Author(s): Moustafa

Publication: Web Session

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Issue:

Appears on pages(s):

Keywords:

DOI:

Date: 10/17/2021

Abstract:
Using full‐depth precast deck panels and deck bulb tee girders (DBTs) is one of the most popular and reliable solutions nowadays for accelerated bridge construction (ABC). Precast panels and DBTs usually require to be connected on‐site using robust materials such as ultra‐high performance concrete (UHPC) for the field joints. The unparalleled mechanical properties of UHPC mixes have gained material popularity for ABC connections. The objective of this study is to leverage readily developed non‐proprietary UHPC mixes, but using local materials available in the western United States, and proof‐test it in precast deck panels transverse field joints and DBTs longitudinal field joints. The presentation provides an overview of a comprehensive experimental program where four full‐scale specimens of two representative bridge deck systems with UHPC field joints were tested under static vertical loading. The structural behavior of all specimens was evaluated in terms of load and deflection capacities as well as the field joint performance.