Material Behavior

Interface Shear Behavior of UHPC

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Abstract

To date, very little research has been conducted on the interface shear behavior of UHPC-class materials. The structural concrete research group at FHWA’s Turner-Fairbank Highway Research Center is currently developing an experimental program to evaluate the interface shear behavior of this class of materials. The primary goal of this presentation is to provide some preliminary findings from this line of research. Three types of specimens were employed to evaluate the interface shear behavior: 1) small-scale, beam-like double shear specimens(Figure 1); 2) large-scale,double shear push-off specimens(Figure 2); and 3) more traditional large-scale,single shear push-off specimens(Figure 3). Results will be compared with existing data from tests on high-strength concretes and with existing code provisions. Data collected thus far indicates that the interface shear strength of UHPC is considerably higher than that of traditional high-strength concrete, and that the interface shear strength of UHPC may be higher than previously published results.

How to Cite:

Zmetra, K., Haber, Z. & Graybeal, B. A., (2019) “Interface Shear Behavior of UHPC”, International Interactive Symposium on Ultra-High Performance Concrete 2(1). doi: https://doi.org/10.21838/uhpc.9718