Optimized Performance of UHPC Bridge Joints and Overlays

Project Details
STATE

FHWA

SOURCE

TRID

START DATE

03/01/19

END DATE

03/01/21

RESEARCHERS

Paramita Mondal, Farshad Rajabipour

SPONSORS

USDOT

KEYWORDS

Bridges, Joints (Engineering), Laboratory tests, Mix design, Optimization, Overlays (Pavements), Ultra high performance concrete

Project description

The objective of this research is to capitalize on the existing knowledge and literature by compiling various ultra-high performance concrete (UHPC) mix design strategies and establishing empirical composition-property relationships that can be used to develop UHPC mixtures for expansion joints and overlays with optimum durability and structural performance. In addition, the research team will address a critical knowledge gap of linking formulation and rheology of UHPC mixtures with different fiber types, which allow designing highly flowable mixtures. The resulting optimum UHPC mixtures will be laboratory tested and further improved. Potential impact on the state of practice could be significant by promoting the use of low-cost non-proprietary UHPC to extend the life of concrete bridges, and by familiarizing the industry and transportation agencies in the region with this valuable technology.
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