FraMCoS 2 1995 Zurich, Switzerland

Mode I Fracture Behaviour of Recycled Concrete

load-displacement curves of concrete, which had been produced natural (NC) or with recycled concrete aggregate (RC), were determined cubic specimens and a wedge splitting procedure allowing stable crack growth. From the load-displacement curves, fracture mechanical data and the softening diagram…

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Year 1995
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Abstract

load-displacement curves of concrete, which had been produced natural (NC) or with recycled concrete aggregate (RC), were determined cubic specimens and a wedge splitting procedure allowing stable crack growth. From the load-displacement curves, fracture mechanical data and the softening diagram were derived. The specific fracture energy of RC is 71.5 Nim, which is only 60 % of that of NC. The maximum load of RC in the load-displacement diagram is only % of NC. The observed differences of the fracture behaviour between RC and NC and fractographic results are analyzed and discussed.