Testing and Analysis of Aluconcrete Beams

Bridle, R. J. and Roberts, T. M. and Uran, N. and A. Razak, A. K. (2007) Testing and Analysis of Aluconcrete Beams. Journal of Materials in Civil Engineering, 19 (6). pp. 523-525. ISSN 0899-1561

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Abstract

A series of four-point bending, quasi-static and high-cycle fatigue tests has been conducted on aluconcrete beams consisting of an aluminum extrusion acting compositely with a high-strength concrete infill. Observations and analysis of the quasi-static tests and test results indicate that fully effective composite action was maintained up to failure, with negligible or minimal slip occurring between the aluminum extrusion and high-strength concrete. Failure of the beams during the high-cycle fatigue tests resulted from a gradual degradation of the bond between the concrete and aluminum, resulting in noticeable slip and a corresponding reduction in composite action. Even so, the fatigue test beams, which had a shear bond transmission length of only 575mm, were able to sustain approximately one-quarter of a million load cycles from approximately 5 to 50% of their ultimate load.

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