Bending Fatigue Properties of Concrete Pavements with Recycled Aggregates

Paper by KOBAYASHI HAMADA from ISCR 8th 1998 Lisbon Portugal

This report presents the experimental studies on the bending fatigue properties of normally cast concrete and roller compacted concrete mixed with recycled aggregates produced from concrete waste and on the applicability of this concrete to pavement. The present studies provides the following principal conclusions. (1)Recycled aggregate can be used as pavement concrete if the properties are improved by removing the mortar sufficiently. (2)The bending fatigue strength of normally cast concrete mixed with recycled aggregate is lower than that of concrete mixed with ordinary aggregate. (3)Bending fatigue test data of concrete mixed with recycled aggregate were applicd to the Wcibull distribution function with good agreement.

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